mirror of
https://github.com/puppetlabs/vmpooler.git
synced 2026-01-26 01:58:41 -05:00
1935 lines
70 KiB
Ruby
1935 lines
70 KiB
Ruby
require 'spec_helper'
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require 'time'
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require 'mock_redis'
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# Custom RSpec :Matchers
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# Match a Hashtable['name'] is an expected value
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RSpec::Matchers.define :a_pool_with_name_of do |value|
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match { |actual| actual['name'] == value }
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end
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describe 'Pool Manager' do
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let(:logger) { MockLogger.new }
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let(:redis) { MockRedis.new }
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let(:metrics) { Vmpooler::DummyStatsd.new }
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let(:config) { {} }
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let(:pool) { 'pool1' }
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let(:vm) { 'vm1' }
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let(:timeout) { 5 }
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let(:host) { double('host') }
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let(:token) { 'token1234'}
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subject { Vmpooler::PoolManager.new(config, logger, redis, metrics) }
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describe '#check_pending_vm' do
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let(:vsphere) { double('vsphere') }
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before do
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expect(subject).not_to be_nil
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end
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it 'calls _check_pending_vm' do
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expect(Thread).to receive(:new).and_yield
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expect(subject).to receive(:_check_pending_vm).with(vm,pool,timeout,vsphere)
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subject.check_pending_vm(vm, pool, timeout, vsphere)
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end
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end
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describe '#open_socket' do
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let(:TCPSocket) { double('tcpsocket') }
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let(:socket) { double('tcpsocket') }
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let(:hostname) { 'host' }
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let(:domain) { 'domain.local'}
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let(:default_socket) { 22 }
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before do
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expect(subject).not_to be_nil
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allow(socket).to receive(:close)
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end
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it 'opens socket with defaults' do
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expect(TCPSocket).to receive(:new).with(hostname,default_socket).and_return(socket)
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expect(subject.open_socket(hostname)).to eq(nil)
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end
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it 'yields the socket if a block is given' do
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expect(TCPSocket).to receive(:new).with(hostname,default_socket).and_return(socket)
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expect{ |socket| subject.open_socket(hostname,nil,nil,default_socket,&socket) }.to yield_control.exactly(1).times
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end
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it 'closes the opened socket' do
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expect(TCPSocket).to receive(:new).with(hostname,default_socket).and_return(socket)
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expect(socket).to receive(:close)
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expect(subject.open_socket(hostname)).to eq(nil)
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end
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it 'opens a specific socket' do
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expect(TCPSocket).to receive(:new).with(hostname,80).and_return(socket)
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expect(subject.open_socket(hostname,nil,nil,80)).to eq(nil)
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end
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it 'uses a specific domain with the hostname' do
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expect(TCPSocket).to receive(:new).with("#{hostname}.#{domain}",default_socket).and_return(socket)
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expect(subject.open_socket(hostname,domain)).to eq(nil)
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end
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it 'raises error if host is not resolvable' do
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expect(TCPSocket).to receive(:new).with(hostname,default_socket).and_raise(SocketError,'getaddrinfo: No such host is known')
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expect { subject.open_socket(hostname,nil,1) }.to raise_error(SocketError)
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end
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it 'raises error if socket is not listening' do
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expect(TCPSocket).to receive(:new).with(hostname,default_socket).and_raise(SocketError,'No connection could be made because the target machine actively refused it')
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expect { subject.open_socket(hostname,nil,1) }.to raise_error(SocketError)
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end
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end
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describe '#_check_pending_vm' do
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let(:vsphere) { double('vsphere') }
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before do
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expect(subject).not_to be_nil
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end
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context 'host does not exist or not in pool' do
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it 'calls fail_pending_vm' do
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expect(vsphere).to receive(:find_vm).and_return(nil)
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expect(subject).to receive(:fail_pending_vm).with(vm, pool, timeout, false)
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subject._check_pending_vm(vm, pool, timeout, vsphere)
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end
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end
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context 'host is in pool' do
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it 'calls move_pending_vm_to_ready if host is ready' do
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expect(vsphere).to receive(:find_vm).and_return(host)
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expect(subject).to receive(:open_socket).and_return(nil)
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expect(subject).to receive(:move_pending_vm_to_ready).with(vm, pool, host)
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subject._check_pending_vm(vm, pool, timeout, vsphere)
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end
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it 'calls fail_pending_vm if an error is raised' do
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expect(vsphere).to receive(:find_vm).and_return(host)
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expect(subject).to receive(:open_socket).and_raise(SocketError,'getaddrinfo: No such host is known')
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expect(subject).to receive(:fail_pending_vm).with(vm, pool, timeout)
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subject._check_pending_vm(vm, pool, timeout, vsphere)
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end
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end
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end
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describe '#remove_nonexistent_vm' do
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before do
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expect(subject).not_to be_nil
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end
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it 'removes VM from pending in redis' do
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create_pending_vm(pool,vm)
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expect(redis.sismember("vmpooler__pending__#{pool}", vm)).to be(true)
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subject.remove_nonexistent_vm(vm, pool)
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expect(redis.sismember("vmpooler__pending__#{pool}", vm)).to be(false)
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end
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it 'logs msg' do
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expect(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' no longer exists. Removing from pending.")
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subject.remove_nonexistent_vm(vm, pool)
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end
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end
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describe '#fail_pending_vm' do
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before do
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expect(subject).not_to be_nil
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end
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before(:each) do
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create_pending_vm(pool,vm)
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end
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it 'takes no action if VM is not cloning' do
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expect(subject.fail_pending_vm(vm, pool, timeout)).to eq(nil)
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expect(redis.sismember("vmpooler__pending__#{pool}", vm)).to be(true)
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end
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it 'takes no action if VM is within timeout' do
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redis.hset("vmpooler__vm__#{vm}", 'clone',Time.now.to_s)
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expect(subject.fail_pending_vm(vm, pool, timeout)).to eq(nil)
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expect(redis.sismember("vmpooler__pending__#{pool}", vm)).to be(true)
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end
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it 'moves VM to completed queue if VM has exceeded timeout and exists' do
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redis.hset("vmpooler__vm__#{vm}", 'clone',Date.new(2001,1,1).to_s)
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expect(subject.fail_pending_vm(vm, pool, timeout,true)).to eq(nil)
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expect(redis.sismember("vmpooler__pending__#{pool}", vm)).to be(false)
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expect(redis.sismember("vmpooler__completed__#{pool}", vm)).to be(true)
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end
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it 'logs message if VM has exceeded timeout and exists' do
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redis.hset("vmpooler__vm__#{vm}", 'clone',Date.new(2001,1,1).to_s)
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expect(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' marked as 'failed' after #{timeout} minutes")
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expect(subject.fail_pending_vm(vm, pool, timeout,true)).to eq(nil)
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end
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it 'calls remove_nonexistent_vm if VM has exceeded timeout and does not exist' do
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redis.hset("vmpooler__vm__#{vm}", 'clone',Date.new(2001,1,1).to_s)
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expect(subject).to receive(:remove_nonexistent_vm).with(vm, pool)
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expect(subject.fail_pending_vm(vm, pool, timeout,false)).to eq(nil)
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end
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it 'swallows error if an error is raised' do
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redis.hset("vmpooler__vm__#{vm}", 'clone','iamnotparsable_asdate')
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expect(subject.fail_pending_vm(vm, pool, timeout,true)).to eq(nil)
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end
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it 'logs message if an error is raised' do
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redis.hset("vmpooler__vm__#{vm}", 'clone','iamnotparsable_asdate')
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expect(logger).to receive(:log).with('d', String)
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subject.fail_pending_vm(vm, pool, timeout,true)
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end
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end
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describe '#move_pending_vm_to_ready' do
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before do
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expect(subject).not_to be_nil
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allow(Socket).to receive(:getaddrinfo)
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end
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before(:each) do
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create_pending_vm(pool,vm)
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end
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context 'when hostname does not match VM name' do
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it 'should not take any action' do
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expect(logger).to receive(:log).exactly(0).times
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expect(Socket).to receive(:getaddrinfo).exactly(0).times
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allow(host).to receive(:summary).and_return( double('summary') )
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allow(host).to receive_message_chain(:summary, :guest).and_return( double('guest') )
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allow(host).to receive_message_chain(:summary, :guest, :hostName).and_return ('different_name')
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subject.move_pending_vm_to_ready(vm, pool, host)
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end
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end
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context 'when hostname matches VM name' do
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before do
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allow(host).to receive(:summary).and_return( double('summary') )
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allow(host).to receive_message_chain(:summary, :guest).and_return( double('guest') )
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allow(host).to receive_message_chain(:summary, :guest, :hostName).and_return (vm)
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end
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it 'should move the VM from pending to ready pool' do
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expect(redis.sismember("vmpooler__pending__#{pool}", vm)).to be(true)
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expect(redis.sismember("vmpooler__ready__#{pool}", vm)).to be(false)
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subject.move_pending_vm_to_ready(vm, pool, host)
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expect(redis.sismember("vmpooler__pending__#{pool}", vm)).to be(false)
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expect(redis.sismember("vmpooler__ready__#{pool}", vm)).to be(true)
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end
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it 'should log a message' do
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expect(logger).to receive(:log).with('s', "[>] [#{pool}] '#{vm}' moved to 'ready' queue")
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subject.move_pending_vm_to_ready(vm, pool, host)
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end
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it 'should set the boot time in redis' do
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redis.hset("vmpooler__vm__#{vm}", 'clone',Time.now.to_s)
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expect(redis.hget('vmpooler__boot__' + Date.today.to_s, pool + ':' + vm)).to be_nil
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subject.move_pending_vm_to_ready(vm, pool, host)
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expect(redis.hget('vmpooler__boot__' + Date.today.to_s, pool + ':' + vm)).to_not be_nil
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# TODO Should we inspect the value to see if it's valid?
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end
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it 'should not determine boot timespan if clone start time not set' do
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expect(redis.hget('vmpooler__boot__' + Date.today.to_s, pool + ':' + vm)).to be_nil
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subject.move_pending_vm_to_ready(vm, pool, host)
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expect(redis.hget('vmpooler__boot__' + Date.today.to_s, pool + ':' + vm)).to eq("") # Possible implementation bug here. Should still be nil here
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end
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it 'should raise error if clone start time is not parsable' do
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redis.hset("vmpooler__vm__#{vm}", 'clone','iamnotparsable_asdate')
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expect{subject.move_pending_vm_to_ready(vm, pool, host)}.to raise_error(/iamnotparsable_asdate/)
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end
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end
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end
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describe '#check_ready_vm' do
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let(:vsphere) { double('vsphere') }
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let(:ttl) { 0 }
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let(:config) {
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YAML.load(<<-EOT
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---
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:config:
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vm_checktime: 15
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EOT
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)
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}
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before(:each) do
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expect(Thread).to receive(:new).and_yield
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create_ready_vm(pool,vm)
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end
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it 'should raise an error if a TTL above zero is specified' do
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expect { subject.check_ready_vm(vm,pool,5,vsphere) }.to raise_error(NameError) # This is an implementation bug
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end
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context 'a VM that does not need to be checked' do
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it 'should do nothing' do
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redis.hset("vmpooler__vm__#{vm}", 'check',Time.now.to_s)
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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end
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end
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context 'a VM that does not exist' do
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before do
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allow(vsphere).to receive(:find_vm).and_return(nil)
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end
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it 'should set the current check timestamp' do
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allow(subject).to receive(:open_socket)
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expect(redis.hget("vmpooler__vm__#{vm}", 'check')).to be_nil
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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expect(redis.hget("vmpooler__vm__#{vm}", 'check')).to_not be_nil
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end
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it 'should log a message' do
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expect(logger).to receive(:log).with('s', "[!] [#{pool}] '#{vm}' not found in vCenter inventory, removed from 'ready' queue")
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allow(subject).to receive(:open_socket)
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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end
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it 'should remove the VM from the ready queue' do
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allow(subject).to receive(:open_socket)
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expect(redis.sismember("vmpooler__ready__#{pool}", vm)).to be(true)
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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expect(redis.sismember("vmpooler__ready__#{pool}", vm)).to be(false)
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end
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end
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context 'a VM that needs to be checked' do
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before(:each) do
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redis.hset("vmpooler__vm__#{vm}", 'check',Date.new(2001,1,1).to_s)
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allow(host).to receive(:summary).and_return( double('summary') )
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allow(host).to receive_message_chain(:summary, :guest).and_return( double('guest') )
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allow(host).to receive_message_chain(:summary, :guest, :hostName).and_return (vm)
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allow(vsphere).to receive(:find_vm).and_return(host)
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end
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context 'and is ready' do
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before(:each) do
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allow(host).to receive(:runtime).and_return( double('runtime') )
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allow(host).to receive_message_chain(:runtime, :powerState).and_return('poweredOn')
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allow(host).to receive_message_chain(:summary, :guest, :hostName).and_return (vm)
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allow(subject).to receive(:open_socket).with(vm).and_return(nil)
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end
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it 'should only set the next check interval' do
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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end
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end
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context 'but turned off and name mismatch' do
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before(:each) do
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allow(host).to receive(:runtime).and_return( double('runtime') )
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allow(host).to receive_message_chain(:runtime, :powerState).and_return('poweredOff')
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allow(host).to receive_message_chain(:summary, :guest, :hostName).and_return ('')
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allow(subject).to receive(:open_socket).with(vm).and_raise(SocketError,'getaddrinfo: No such host is known')
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end
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it 'should move the VM to the completed queue multiple times' do
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# There is an implementation bug which attempts the move multiple times
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expect(redis).to receive(:smove).with("vmpooler__ready__#{pool}", "vmpooler__completed__#{pool}", vm).at_least(2).times
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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end
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it 'should move the VM to the completed queue' do
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expect(redis.sismember("vmpooler__ready__#{pool}", vm)).to be(true)
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expect(redis.sismember("vmpooler__completed__#{pool}", vm)).to be(false)
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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expect(redis.sismember("vmpooler__ready__#{pool}", vm)).to be(false)
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expect(redis.sismember("vmpooler__completed__#{pool}", vm)).to be(true)
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end
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it 'should log messages about being powered off, name mismatch and removed from ready queue' do
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expect(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' appears to be powered off, removed from 'ready' queue")
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expect(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' has mismatched hostname, removed from 'ready' queue")
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# There is an implementation bug which attempts the move multiple times however
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# as the VM is no longer in the ready queue, redis also throws an error
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expect(logger).to receive(:log).with("d", "[!] [#{pool}] '#{vm}' is unreachable, and failed to remove from 'ready' queue")
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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end
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it 'should log a message if it fails to move queues' do
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expect(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' appears to be powered off, removed from 'ready' queue")
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expect(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' has mismatched hostname, removed from 'ready' queue")
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expect(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' is unreachable, and failed to remove from 'ready' queue")
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subject.check_ready_vm(vm, pool, ttl, vsphere)
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end
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end
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end
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end
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describe '#check_running_vm' do
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let(:vsphere) { double('vsphere') }
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let (:ttl) { 5 }
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before do
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expect(subject).not_to be_nil
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end
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it 'calls _check_running_vm' do
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expect(Thread).to receive(:new).and_yield
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expect(subject).to receive(:_check_running_vm).with(vm, pool, ttl, vsphere)
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subject.check_running_vm(vm, pool, ttl, vsphere)
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end
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end
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describe '#_check_running_vm' do
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let(:vsphere) { double('vsphere') }
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before do
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expect(subject).not_to be_nil
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end
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before(:each) do
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create_running_vm(pool,vm)
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end
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it 'does nothing with a missing VM' do
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allow(vsphere).to receive(:find_vm).and_return(nil)
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expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
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subject._check_running_vm(vm, pool, timeout, vsphere)
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expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
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end
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context 'valid host' do
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let(:vm_host) { double('vmhost') }
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it 'should not move VM when not poweredOn' do
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# I'm not sure this test is useful. There is no codepath
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# in _check_running_vm that looks at Power State
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allow(vsphere).to receive(:find_vm).and_return vm_host
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allow(vm_host).to receive(:runtime).and_return true
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allow(vm_host).to receive_message_chain(:runtime, :powerState).and_return 'poweredOff'
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expect(logger).not_to receive(:log).with('d', "[!] [#{pool}] '#{vm}' appears to be powered off or dead")
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expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
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subject._check_running_vm(vm, pool, timeout, vsphere)
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expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
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end
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it 'should not move VM if it has no checkout time' do
|
|
allow(vsphere).to receive(:find_vm).and_return vm_host
|
|
expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
|
|
subject._check_running_vm(vm, pool, 0, vsphere)
|
|
expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
|
|
end
|
|
|
|
it 'should not move VM if TTL is zero' do
|
|
allow(vsphere).to receive(:find_vm).and_return vm_host
|
|
redis.hset("vmpooler__active__#{pool}", vm,(Time.now - timeout*60*60).to_s)
|
|
expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
|
|
subject._check_running_vm(vm, pool, 0, vsphere)
|
|
expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
|
|
end
|
|
|
|
it 'should move VM when past TTL' do
|
|
allow(vsphere).to receive(:find_vm).and_return vm_host
|
|
redis.hset("vmpooler__active__#{pool}", vm,(Time.now - timeout*60*60).to_s)
|
|
expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(true)
|
|
expect(redis.sismember("vmpooler__completed__#{pool}", vm)).to be(false)
|
|
subject._check_running_vm(vm, pool, timeout, vsphere)
|
|
expect(redis.sismember("vmpooler__running__#{pool}", vm)).to be(false)
|
|
expect(redis.sismember("vmpooler__completed__#{pool}", vm)).to be(true)
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '#move_vm_queue' do
|
|
let(:queue_from) { 'pending' }
|
|
let(:queue_to) { 'completed' }
|
|
let(:message) { 'message' }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
before(:each) do
|
|
create_pending_vm(pool, vm, token)
|
|
end
|
|
|
|
it 'VM should be in the "from queue" before the move' do
|
|
expect(redis.sismember("vmpooler__#{queue_from}__#{pool}",vm))
|
|
end
|
|
|
|
it 'VM should not be in the "from queue" after the move' do
|
|
subject.move_vm_queue(pool, vm, queue_from, queue_to, message)
|
|
expect(!redis.sismember("vmpooler__#{queue_from}__#{pool}",vm))
|
|
end
|
|
|
|
it 'VM should not be in the "to queue" before the move' do
|
|
expect(!redis.sismember("vmpooler__#{queue_to}__#{pool}",vm))
|
|
end
|
|
|
|
it 'VM should be in the "to queue" after the move' do
|
|
subject.move_vm_queue(pool, vm, queue_from, queue_to, message)
|
|
expect(redis.sismember("vmpooler__#{queue_to}__#{pool}",vm))
|
|
end
|
|
|
|
it 'should log a message' do
|
|
allow(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' #{message}")
|
|
|
|
subject.move_vm_queue(pool, vm, queue_from, queue_to, message)
|
|
end
|
|
end
|
|
|
|
describe '#clone_vm' do
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
before(:each) do
|
|
expect(Thread).to receive(:new).and_yield
|
|
end
|
|
|
|
let(:config) {
|
|
YAML.load(<<-EOT
|
|
---
|
|
:config:
|
|
prefix: "prefix"
|
|
:vsphere:
|
|
username: "vcenter_user"
|
|
EOT
|
|
)
|
|
}
|
|
|
|
let (:folder) { 'vmfolder' }
|
|
let (:folder_object) { double('folder_object') }
|
|
let (:template_name) { pool }
|
|
let (:template) { "template/#{template_name}" }
|
|
let (:datastore) { 'datastore' }
|
|
let (:target) { 'clone_target' }
|
|
let (:vsphere) { double('vsphere') }
|
|
let (:template_folder_object) { double('template_folder_object') }
|
|
let (:template_vm_object) { double('template_vm_object') }
|
|
let (:clone_task) { double('clone_task') }
|
|
|
|
context 'no template specified' do
|
|
it 'should raise an error' do
|
|
|
|
expect{subject.clone_vm(nil,folder,datastore,target,vsphere)}.to raise_error(/Please provide a full path to the template/)
|
|
end
|
|
|
|
it 'should log a message' do
|
|
expect(logger).to receive(:log).with('s', "[!] [] '' failed while preparing to clone with an error: Please provide a full path to the template")
|
|
|
|
expect{subject.clone_vm(nil,folder,datastore,target,vsphere)}.to raise_error(RuntimeError)
|
|
end
|
|
end
|
|
|
|
context 'a template with no forward slash in the string' do
|
|
it 'should raise an error' do
|
|
|
|
expect{subject.clone_vm('vm1',folder,datastore,target,vsphere)}.to raise_error(/Please provide a full path to the template/)
|
|
end
|
|
|
|
it 'should log a message' do
|
|
expect(logger).to receive(:log).with('s', "[!] [] '' failed while preparing to clone with an error: Please provide a full path to the template")
|
|
|
|
expect{subject.clone_vm('vm1',folder,datastore,target,vsphere)}.to raise_error(RuntimeError)
|
|
end
|
|
end
|
|
|
|
# Note - It is impossible to get into the following code branch
|
|
# ...
|
|
# if vm['template'].length == 0
|
|
# fail "Unable to find template '#{vm['template']}'!"
|
|
# end
|
|
# ...
|
|
|
|
context "Template name does not match pool name (Implementation Bug)" do
|
|
let (:template_name) { 'template_vm' }
|
|
|
|
# The implementaion of clone_vm incorrectly uses the VM Template name instead of the pool name. The VM Template represents the
|
|
# name of the VM to clone in vSphere whereas pool is the name of the pool in Pooler. The tests below document the behaviour of
|
|
# clone_vm if the Template and Pool name differ. It is expected that these test will fail once this bug is removed.
|
|
|
|
context 'a valid template' do
|
|
before(:each) do
|
|
expect(template_folder_object).to receive(:find).with(template_name).and_return(template_vm_object)
|
|
expect(vsphere).to receive(:find_folder).with('template').and_return(template_folder_object)
|
|
end
|
|
|
|
context 'with no errors during cloning' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_least_used_host).with(target).and_return('least_used_host')
|
|
expect(vsphere).to receive(:find_datastore).with(datastore).and_return('datastore')
|
|
expect(vsphere).to receive(:find_folder).with('vmfolder').and_return(folder_object)
|
|
expect(template_vm_object).to receive(:CloneVM_Task).and_return(clone_task)
|
|
expect(clone_task).to receive(:wait_for_completion)
|
|
expect(metrics).to receive(:timing).with(/clone\./,/0/)
|
|
end
|
|
|
|
it 'should create a cloning VM' do
|
|
expect(logger).to receive(:log).at_least(:once)
|
|
expect(redis.scard("vmpooler__pending__#{pool}")).to eq(0)
|
|
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
|
|
expect(redis.scard("vmpooler__pending__#{template_name}")).to eq(1)
|
|
# Get the new VM Name from the pending pool queue as it should be the only entry
|
|
vm_name = redis.smembers("vmpooler__pending__#{template_name}")[0]
|
|
expect(redis.hget("vmpooler__vm__#{vm_name}", 'clone')).to_not be_nil
|
|
expect(redis.hget("vmpooler__vm__#{vm_name}", 'template')).to eq(template_name)
|
|
expect(redis.hget("vmpooler__clone__#{Date.today.to_s}", "#{template_name}:#{vm_name}")).to_not be_nil
|
|
expect(redis.hget("vmpooler__vm__#{vm_name}", 'clone_time')).to_not be_nil
|
|
end
|
|
|
|
it 'should log a message that is being cloned from a template' do
|
|
expect(logger).to receive(:log).with('d',/\[ \] \[#{template_name}\] '(.+)' is being cloned from '#{template_name}'/)
|
|
allow(logger).to receive(:log)
|
|
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
end
|
|
|
|
it 'should log a message that it completed being cloned' do
|
|
expect(logger).to receive(:log).with('s',/\[\+\] \[#{template_name}\] '(.+)' cloned from '#{template_name}' in [0-9.]+ seconds/)
|
|
allow(logger).to receive(:log)
|
|
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
end
|
|
end
|
|
|
|
# An error can be cause by the following configuration errors:
|
|
# - Missing or invalid datastore
|
|
# - Missing or invalid clone target
|
|
# also any runtime errors during the cloning process
|
|
# https://www.vmware.com/support/developer/converter-sdk/conv50_apireference/vim.VirtualMachine.html#clone
|
|
context 'with an error during cloning' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_least_used_host).with(target).and_return('least_used_host')
|
|
expect(vsphere).to receive(:find_datastore).with(datastore).and_return(nil)
|
|
expect(vsphere).to receive(:find_folder).with('vmfolder').and_return(folder_object)
|
|
expect(template_vm_object).to receive(:CloneVM_Task).and_return(clone_task)
|
|
expect(clone_task).to receive(:wait_for_completion).and_raise(RuntimeError,'SomeError')
|
|
expect(metrics).to receive(:timing).with(/clone\./,/0/).exactly(0).times
|
|
|
|
end
|
|
|
|
it 'should raise an error within the Thread' do
|
|
expect(logger).to receive(:log).at_least(:once)
|
|
expect{subject.clone_vm(template,folder,datastore,target,vsphere)}.to raise_error(/SomeError/)
|
|
end
|
|
|
|
it 'should log a message that is being cloned from a template' do
|
|
expect(logger).to receive(:log).with('d',/\[ \] \[#{template_name}\] '(.+)' is being cloned from '#{template_name}'/)
|
|
allow(logger).to receive(:log)
|
|
|
|
# Swallow the error
|
|
begin
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
rescue
|
|
end
|
|
end
|
|
|
|
it 'should log messages that the clone failed' do
|
|
expect(logger).to receive(:log).with('s', /\[!\] \[#{template_name}\] '(.+)' clone failed with an error: SomeError/)
|
|
expect(logger).to receive(:log).with('s', /\[!\] \[#{template_name}\] '(.+)' failed while preparing to clone with an error: SomeError/)
|
|
allow(logger).to receive(:log)
|
|
|
|
# Swallow the error
|
|
begin
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
rescue
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
context 'a valid template' do
|
|
before(:each) do
|
|
expect(template_folder_object).to receive(:find).with(template_name).and_return(template_vm_object)
|
|
expect(vsphere).to receive(:find_folder).with('template').and_return(template_folder_object)
|
|
end
|
|
|
|
context 'with no errors during cloning' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_least_used_host).with(target).and_return('least_used_host')
|
|
expect(vsphere).to receive(:find_datastore).with(datastore).and_return('datastore')
|
|
expect(vsphere).to receive(:find_folder).with('vmfolder').and_return(folder_object)
|
|
expect(template_vm_object).to receive(:CloneVM_Task).and_return(clone_task)
|
|
expect(clone_task).to receive(:wait_for_completion)
|
|
expect(metrics).to receive(:timing).with(/clone\./,/0/)
|
|
end
|
|
|
|
it 'should create a cloning VM' do
|
|
expect(logger).to receive(:log).at_least(:once)
|
|
expect(redis.scard("vmpooler__pending__#{pool}")).to eq(0)
|
|
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
|
|
expect(redis.scard("vmpooler__pending__#{pool}")).to eq(1)
|
|
# Get the new VM Name from the pending pool queue as it should be the only entry
|
|
vm_name = redis.smembers("vmpooler__pending__#{pool}")[0]
|
|
expect(redis.hget("vmpooler__vm__#{vm_name}", 'clone')).to_not be_nil
|
|
expect(redis.hget("vmpooler__vm__#{vm_name}", 'template')).to eq(template_name)
|
|
expect(redis.hget("vmpooler__clone__#{Date.today.to_s}", "#{pool}:#{vm_name}")).to_not be_nil
|
|
expect(redis.hget("vmpooler__vm__#{vm_name}", 'clone_time')).to_not be_nil
|
|
end
|
|
|
|
it 'should decrement the clone tasks counter' do
|
|
redis.incr('vmpooler__tasks__clone')
|
|
redis.incr('vmpooler__tasks__clone')
|
|
expect(redis.get('vmpooler__tasks__clone')).to eq('2')
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
expect(redis.get('vmpooler__tasks__clone')).to eq('1')
|
|
end
|
|
|
|
it 'should log a message that is being cloned from a template' do
|
|
expect(logger).to receive(:log).with('d',/\[ \] \[#{pool}\] '(.+)' is being cloned from '#{template_name}'/)
|
|
allow(logger).to receive(:log)
|
|
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
end
|
|
|
|
it 'should log a message that it completed being cloned' do
|
|
expect(logger).to receive(:log).with('s',/\[\+\] \[#{pool}\] '(.+)' cloned from '#{template_name}' in [0-9.]+ seconds/)
|
|
allow(logger).to receive(:log)
|
|
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
end
|
|
end
|
|
|
|
# An error can be cause by the following configuration errors:
|
|
# - Missing or invalid datastore
|
|
# - Missing or invalid clone target
|
|
# also any runtime errors during the cloning process
|
|
# https://www.vmware.com/support/developer/converter-sdk/conv50_apireference/vim.VirtualMachine.html#clone
|
|
context 'with an error during cloning' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_least_used_host).with(target).and_return('least_used_host')
|
|
expect(vsphere).to receive(:find_datastore).with(datastore).and_return(nil)
|
|
expect(vsphere).to receive(:find_folder).with('vmfolder').and_return(folder_object)
|
|
expect(template_vm_object).to receive(:CloneVM_Task).and_return(clone_task)
|
|
expect(clone_task).to receive(:wait_for_completion).and_raise(RuntimeError,'SomeError')
|
|
expect(metrics).to receive(:timing).with(/clone\./,/0/).exactly(0).times
|
|
|
|
end
|
|
|
|
it 'should raise an error within the Thread' do
|
|
expect(logger).to receive(:log).at_least(:once)
|
|
expect{subject.clone_vm(template,folder,datastore,target,vsphere)}.to raise_error(/SomeError/)
|
|
end
|
|
|
|
it 'should log a message that is being cloned from a template' do
|
|
expect(logger).to receive(:log).with('d',/\[ \] \[#{pool}\] '(.+)' is being cloned from '#{template_name}'/)
|
|
allow(logger).to receive(:log)
|
|
|
|
# Swallow the error
|
|
begin
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
rescue
|
|
end
|
|
end
|
|
|
|
it 'should log messages that the clone failed' do
|
|
expect(logger).to receive(:log).with('s', /\[!\] \[#{pool}\] '(.+)' clone failed with an error: SomeError/)
|
|
expect(logger).to receive(:log).with('s', /\[!\] \[#{pool}\] '(.+)' failed while preparing to clone with an error: SomeError/)
|
|
allow(logger).to receive(:log)
|
|
|
|
# Swallow the error
|
|
begin
|
|
subject.clone_vm(template,folder,datastore,target,vsphere)
|
|
rescue
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
describe "#destroy_vm" do
|
|
let (:vsphere) { double('vsphere') }
|
|
|
|
let(:config) {
|
|
YAML.load(<<-EOT
|
|
---
|
|
:redis:
|
|
data_ttl: 168
|
|
EOT
|
|
)
|
|
}
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
before(:each) do
|
|
expect(Thread).to receive(:new).and_yield
|
|
|
|
create_completed_vm(vm,pool,true)
|
|
end
|
|
|
|
context 'when redis data_ttl is not specified in the configuration' do
|
|
let(:config) {
|
|
YAML.load(<<-EOT
|
|
---
|
|
:redis:
|
|
"key": "value"
|
|
EOT
|
|
)
|
|
}
|
|
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_vm).and_return(nil)
|
|
end
|
|
|
|
it 'should call redis expire with 0' do
|
|
expect(redis.hget("vmpooler__vm__#{vm}", 'checkout')).to_not be_nil
|
|
subject.destroy_vm(vm,pool,vsphere)
|
|
expect(redis.hget("vmpooler__vm__#{vm}", 'checkout')).to be_nil
|
|
end
|
|
end
|
|
|
|
context 'when there is no redis section in the configuration' do
|
|
let(:config) {}
|
|
|
|
it 'should raise an error' do
|
|
expect{ subject.destroy_vm(vm,pool,vsphere) }.to raise_error(NoMethodError)
|
|
end
|
|
end
|
|
|
|
context 'when a VM does not exist' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_vm).and_return(nil)
|
|
end
|
|
|
|
it 'should not call any vsphere methods' do
|
|
subject.destroy_vm(vm,pool,vsphere)
|
|
end
|
|
end
|
|
|
|
context 'when a VM exists' do
|
|
let (:destroy_task) { double('destroy_task') }
|
|
let (:poweroff_task) { double('poweroff_task') }
|
|
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_vm).and_return(host)
|
|
allow(host).to receive(:runtime).and_return(true)
|
|
end
|
|
|
|
context 'and an error occurs during destroy' do
|
|
before(:each) do
|
|
allow(host).to receive_message_chain(:runtime, :powerState).and_return('poweredOff')
|
|
expect(host).to receive(:Destroy_Task).and_return(destroy_task)
|
|
expect(destroy_task).to receive(:wait_for_completion).and_raise(RuntimeError,'DestroyFailure')
|
|
expect(metrics).to receive(:timing).exactly(0).times
|
|
end
|
|
|
|
it 'should raise an error in the thread' do
|
|
expect { subject.destroy_vm(vm,pool,vsphere) }.to raise_error(/DestroyFailure/)
|
|
end
|
|
end
|
|
|
|
context 'and an error occurs during power off' do
|
|
before(:each) do
|
|
allow(host).to receive_message_chain(:runtime, :powerState).and_return('poweredOn')
|
|
expect(host).to receive(:PowerOffVM_Task).and_return(poweroff_task)
|
|
expect(poweroff_task).to receive(:wait_for_completion).and_raise(RuntimeError,'PowerOffFailure')
|
|
expect(logger).to receive(:log).with('d', "[ ] [#{pool}] '#{vm}' is being shut down")
|
|
expect(metrics).to receive(:timing).exactly(0).times
|
|
end
|
|
|
|
it 'should raise an error in the thread' do
|
|
expect { subject.destroy_vm(vm,pool,vsphere) }.to raise_error(/PowerOffFailure/)
|
|
end
|
|
end
|
|
|
|
context 'and is powered off' do
|
|
before(:each) do
|
|
allow(host).to receive_message_chain(:runtime, :powerState).and_return('poweredOff')
|
|
expect(host).to receive(:Destroy_Task).and_return(destroy_task)
|
|
expect(destroy_task).to receive(:wait_for_completion)
|
|
expect(metrics).to receive(:timing).with("destroy.#{pool}", /0/)
|
|
end
|
|
|
|
it 'should log a message the VM was destroyed' do
|
|
expect(logger).to receive(:log).with('s', /\[-\] \[#{pool}\] '#{vm}' destroyed in [0-9.]+ seconds/)
|
|
subject.destroy_vm(vm,pool,vsphere)
|
|
end
|
|
end
|
|
|
|
context 'and is powered on' do
|
|
before(:each) do
|
|
allow(host).to receive_message_chain(:runtime, :powerState).and_return('poweredOn')
|
|
expect(host).to receive(:Destroy_Task).and_return(destroy_task)
|
|
expect(host).to receive(:PowerOffVM_Task).and_return(poweroff_task)
|
|
expect(poweroff_task).to receive(:wait_for_completion)
|
|
expect(destroy_task).to receive(:wait_for_completion)
|
|
expect(metrics).to receive(:timing).with("destroy.#{pool}", /0/)
|
|
end
|
|
|
|
it 'should log a message the VM is being shutdown' do
|
|
expect(logger).to receive(:log).with('d', "[ ] [#{pool}] '#{vm}' is being shut down")
|
|
allow(logger).to receive(:log)
|
|
|
|
subject.destroy_vm(vm,pool,vsphere)
|
|
end
|
|
|
|
it 'should log a message the VM was destroyed' do
|
|
expect(logger).to receive(:log).with('s', /\[-\] \[#{pool}\] '#{vm}' destroyed in [0-9.]+ seconds/)
|
|
allow(logger).to receive(:log)
|
|
|
|
subject.destroy_vm(vm,pool,vsphere)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '#create_vm_disk' do
|
|
let(:vsphere) { double('vsphere') }
|
|
let(:disk_size) { 15 }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
it 'calls _create_vm_disk' do
|
|
expect(Thread).to receive(:new).and_yield
|
|
expect(subject).to receive(:_create_vm_disk).with(vm, disk_size, vsphere)
|
|
|
|
subject.create_vm_disk(vm, disk_size, vsphere)
|
|
end
|
|
end
|
|
|
|
describe '#create_vm_snapshot' do
|
|
let(:vsphere) { double('vsphere') }
|
|
let(:snapshot_name) { 'snapshot' }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
it 'calls _create_vm_snapshot' do
|
|
expect(Thread).to receive(:new).and_yield
|
|
expect(subject).to receive(:_create_vm_snapshot).with(vm, snapshot_name, vsphere)
|
|
|
|
subject.create_vm_snapshot(vm, snapshot_name, vsphere)
|
|
end
|
|
end
|
|
|
|
describe '#revert_vm_snapshot' do
|
|
let(:vsphere) { double('vsphere') }
|
|
let(:snapshot_name) { 'snapshot' }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
it 'calls _create_vm_snapshot' do
|
|
expect(Thread).to receive(:new).and_yield
|
|
expect(subject).to receive(:_revert_vm_snapshot).with(vm, snapshot_name, vsphere)
|
|
|
|
subject.revert_vm_snapshot(vm, snapshot_name, vsphere)
|
|
end
|
|
end
|
|
|
|
describe '#migration_limit' do
|
|
# This is a little confusing. Is this supposed to return a boolean
|
|
# or integer type?
|
|
[false,0].each do |testvalue|
|
|
it "should return false for an input of #{testvalue}" do
|
|
expect(subject.migration_limit(testvalue)).to eq(false)
|
|
end
|
|
end
|
|
|
|
[1,32768].each do |testvalue|
|
|
it "should return #{testvalue} for an input of #{testvalue}" do
|
|
expect(subject.migration_limit(testvalue)).to eq(testvalue)
|
|
end
|
|
end
|
|
|
|
[-1,-32768].each do |testvalue|
|
|
it "should return nil for an input of #{testvalue}" do
|
|
expect(subject.migration_limit(testvalue)).to be_nil
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '#migrate_vm' do
|
|
let(:vsphere) { double('vsphere') }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
it 'calls _migrate_vm' do
|
|
expect(Thread).to receive(:new).and_yield
|
|
expect(subject).to receive(:_migrate_vm).with(vm, pool, vsphere)
|
|
|
|
subject.migrate_vm(vm, pool, vsphere)
|
|
end
|
|
end
|
|
|
|
describe "#get_vm_host_info" do
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
let(:vm_object) { double('vm_object') }
|
|
let(:parent_host) { double('parent_host') }
|
|
|
|
it 'should return an array with host information' do
|
|
expect(vm_object).to receive_message_chain(:summary, :runtime, :host).and_return(parent_host)
|
|
expect(parent_host).to receive(:name).and_return('vmhostname')
|
|
|
|
expect(subject.get_vm_host_info(vm_object)).to eq([parent_host,'vmhostname'])
|
|
end
|
|
end
|
|
|
|
describe "#execute!" do
|
|
let(:threads) {{}}
|
|
|
|
let(:config) {
|
|
YAML.load(<<-EOT
|
|
---
|
|
:pools:
|
|
- name: #{pool}
|
|
EOT
|
|
)
|
|
}
|
|
|
|
let(:thread) { double('thread') }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
context 'on startup' do
|
|
before(:each) do
|
|
allow(subject).to receive(:check_disk_queue)
|
|
allow(subject).to receive(:check_snapshot_queue)
|
|
allow(subject).to receive(:check_pool)
|
|
expect(logger).to receive(:log).with('d', 'starting vmpooler')
|
|
end
|
|
|
|
it 'should set clone tasks to zero' do
|
|
redis.set('vmpooler__tasks__clone', 1)
|
|
subject.execute!(1,0)
|
|
expect(redis.get('vmpooler__tasks__clone')).to eq('0')
|
|
end
|
|
|
|
it 'should clear migration tasks' do
|
|
redis.set('vmpooler__migration', 1)
|
|
subject.execute!(1,0)
|
|
expect(redis.get('vmpooler__migration')).to be_nil
|
|
end
|
|
|
|
it 'should run the check_disk_queue method' do
|
|
expect(subject).to receive(:check_disk_queue)
|
|
|
|
subject.execute!(1,0)
|
|
end
|
|
|
|
it 'should run the check_snapshot_queue method' do
|
|
expect(subject).to receive(:check_snapshot_queue)
|
|
|
|
subject.execute!(1,0)
|
|
end
|
|
|
|
it 'should check the pools in the config' do
|
|
expect(subject).to receive(:check_pool).with(a_pool_with_name_of(pool))
|
|
|
|
subject.execute!(1,0)
|
|
end
|
|
end
|
|
|
|
context 'with dead disk_manager thread' do
|
|
before(:each) do
|
|
allow(subject).to receive(:check_snapshot_queue)
|
|
allow(subject).to receive(:check_pool)
|
|
expect(logger).to receive(:log).with('d', 'starting vmpooler')
|
|
end
|
|
|
|
after(:each) do
|
|
# Reset the global variable - Note this is a code smell
|
|
$threads = nil
|
|
end
|
|
|
|
it 'should run the check_disk_queue method and log a message' do
|
|
expect(thread).to receive(:alive?).and_return(false)
|
|
expect(subject).to receive(:check_disk_queue)
|
|
expect(logger).to receive(:log).with('d', "[!] [disk_manager] worker thread died, restarting")
|
|
$threads['disk_manager'] = thread
|
|
|
|
subject.execute!(1,0)
|
|
end
|
|
end
|
|
|
|
context 'with dead snapshot_manager thread' do
|
|
before(:each) do
|
|
allow(subject).to receive(:check_disk_queue)
|
|
allow(subject).to receive(:check_pool)
|
|
expect(logger).to receive(:log).with('d', 'starting vmpooler')
|
|
end
|
|
|
|
after(:each) do
|
|
# Reset the global variable - Note this is a code smell
|
|
$threads = nil
|
|
end
|
|
|
|
it 'should run the check_snapshot_queue method and log a message' do
|
|
expect(thread).to receive(:alive?).and_return(false)
|
|
expect(subject).to receive(:check_snapshot_queue)
|
|
expect(logger).to receive(:log).with('d', "[!] [snapshot_manager] worker thread died, restarting")
|
|
$threads['snapshot_manager'] = thread
|
|
|
|
subject.execute!(1,0)
|
|
end
|
|
end
|
|
|
|
context 'with dead pool thread' do
|
|
before(:each) do
|
|
allow(subject).to receive(:check_disk_queue)
|
|
allow(subject).to receive(:check_snapshot_queue)
|
|
expect(logger).to receive(:log).with('d', 'starting vmpooler')
|
|
end
|
|
|
|
after(:each) do
|
|
# Reset the global variable - Note this is a code smell
|
|
$threads = nil
|
|
end
|
|
|
|
it 'should run the check_pool method and log a message' do
|
|
expect(thread).to receive(:alive?).and_return(false)
|
|
expect(subject).to receive(:check_pool).with(a_pool_with_name_of(pool))
|
|
expect(logger).to receive(:log).with('d', "[!] [#{pool}] worker thread died, restarting")
|
|
$threads[pool] = thread
|
|
|
|
subject.execute!(1,0)
|
|
end
|
|
end
|
|
|
|
context 'delays between loops' do
|
|
let(:maxloop) { 2 }
|
|
let(:loop_delay) { 1 }
|
|
# Note a maxloop of zero can not be tested as it never terminates
|
|
before(:each) do
|
|
|
|
allow(subject).to receive(:check_disk_queue)
|
|
allow(subject).to receive(:check_snapshot_queue)
|
|
allow(subject).to receive(:check_pool)
|
|
end
|
|
|
|
it 'when a non-default loop delay is specified' do
|
|
start_time = Time.now
|
|
subject.execute!(maxloop,loop_delay)
|
|
finish_time = Time.now
|
|
|
|
# Use a generous delta to take into account various CPU load etc.
|
|
expect(finish_time - start_time).to be_within(0.75).of(maxloop * loop_delay)
|
|
end
|
|
end
|
|
|
|
context 'loops specified number of times (5)' do
|
|
let(:maxloop) { 5 }
|
|
# Note a maxloop of zero can not be tested as it never terminates
|
|
before(:each) do
|
|
end
|
|
|
|
after(:each) do
|
|
# Reset the global variable - Note this is a code smell
|
|
$threads = nil
|
|
end
|
|
|
|
it 'should run startup tasks only once' do
|
|
allow(subject).to receive(:check_disk_queue)
|
|
allow(subject).to receive(:check_snapshot_queue)
|
|
allow(subject).to receive(:check_pool)
|
|
|
|
subject.execute!(maxloop,0)
|
|
end
|
|
|
|
it 'should run per thread tasks 5 times when threads are not remembered' do
|
|
expect(subject).to receive(:check_disk_queue).exactly(maxloop).times
|
|
expect(subject).to receive(:check_snapshot_queue).exactly(maxloop).times
|
|
expect(subject).to receive(:check_pool).exactly(maxloop).times
|
|
|
|
subject.execute!(maxloop,0)
|
|
end
|
|
|
|
it 'should not run per thread tasks when threads are alive' do
|
|
expect(subject).to receive(:check_disk_queue).exactly(0).times
|
|
expect(subject).to receive(:check_snapshot_queue).exactly(0).times
|
|
expect(subject).to receive(:check_pool).exactly(0).times
|
|
|
|
allow(thread).to receive(:alive?).and_return(true)
|
|
$threads[pool] = thread
|
|
$threads['disk_manager'] = thread
|
|
$threads['snapshot_manager'] = thread
|
|
|
|
subject.execute!(maxloop,0)
|
|
end
|
|
end
|
|
end
|
|
|
|
describe "#check_pool" do
|
|
let(:threads) {{}}
|
|
let(:vsphere) {{}}
|
|
|
|
let(:config) {
|
|
YAML.load(<<-EOT
|
|
---
|
|
:pools:
|
|
- name: #{pool}
|
|
EOT
|
|
)
|
|
}
|
|
|
|
let(:thread) { double('thread') }
|
|
let(:pool_object) { config[:pools][0] }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
expect(Thread).to receive(:new).and_yield
|
|
end
|
|
|
|
context 'on startup' do
|
|
before(:each) do
|
|
# Note the Vmpooler::VsphereHelper is not mocked
|
|
allow(subject).to receive(:_check_pool)
|
|
expect(logger).to receive(:log).with('d', "[*] [#{pool}] starting worker thread")
|
|
end
|
|
|
|
after(:each) do
|
|
# Reset the global variable - Note this is a code smell
|
|
$threads = nil
|
|
$vsphere = nil
|
|
end
|
|
|
|
it 'should log a message the worker thread is starting' do
|
|
subject.check_pool(pool_object,1,0)
|
|
end
|
|
|
|
it 'should populate the vsphere global variable' do
|
|
subject.check_pool(pool_object,1,0)
|
|
|
|
expect($vsphere[pool]).to_not be_nil
|
|
end
|
|
|
|
it 'should populate the threads global variable' do
|
|
subject.check_pool(pool_object,1,0)
|
|
|
|
# Unable to test for nil as the Thread is mocked
|
|
expect($threads.keys.include?(pool))
|
|
end
|
|
end
|
|
|
|
context 'delays between loops' do
|
|
let(:maxloop) { 2 }
|
|
let(:loop_delay) { 1 }
|
|
# Note a maxloop of zero can not be tested as it never terminates
|
|
|
|
before(:each) do
|
|
allow(logger).to receive(:log)
|
|
# Note the Vmpooler::VsphereHelper is not mocked
|
|
allow(subject).to receive(:_check_pool)
|
|
end
|
|
|
|
after(:each) do
|
|
# Reset the global variable - Note this is a code smell
|
|
$threads = nil
|
|
$vsphere = nil
|
|
end
|
|
|
|
it 'when a non-default loop delay is specified' do
|
|
start_time = Time.now
|
|
subject.check_pool(pool_object,maxloop,loop_delay)
|
|
finish_time = Time.now
|
|
|
|
# Use a generous delta to take into account various CPU load etc.
|
|
expect(finish_time - start_time).to be_within(0.75).of(maxloop * loop_delay)
|
|
end
|
|
end
|
|
|
|
context 'loops specified number of times (5)' do
|
|
let(:maxloop) { 5 }
|
|
# Note a maxloop of zero can not be tested as it never terminates
|
|
before(:each) do
|
|
allow(logger).to receive(:log)
|
|
# Note the Vmpooler::VsphereHelper is not mocked
|
|
allow(subject).to receive(:_check_pool)
|
|
end
|
|
|
|
after(:each) do
|
|
# Reset the global variable - Note this is a code smell
|
|
$threads = nil
|
|
$vsphere = nil
|
|
end
|
|
|
|
it 'should run startup tasks only once' do
|
|
expect(logger).to receive(:log).with('d', "[*] [#{pool}] starting worker thread")
|
|
|
|
subject.check_pool(pool_object,maxloop,0)
|
|
end
|
|
|
|
it 'should run per thread tasks 5 times' do
|
|
expect(subject).to receive(:_check_pool).exactly(maxloop).times
|
|
|
|
subject.check_pool(pool_object,maxloop,0)
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '#remove_vmpooler_migration_vm' do
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
end
|
|
|
|
it 'should remove the migration from redis' do
|
|
redis.sadd('vmpooler__migration', vm)
|
|
expect(redis.sismember('vmpooler__migration',vm)).to be(true)
|
|
subject.remove_vmpooler_migration_vm(pool, vm)
|
|
expect(redis.sismember('vmpooler__migration',vm)).to be(false)
|
|
end
|
|
|
|
it 'should log a message and swallow an error if one occurs' do
|
|
expect(redis).to receive(:srem).and_raise(RuntimeError,'MockError')
|
|
expect(logger).to receive(:log).with('s', "[x] [#{pool}] '#{vm}' removal from vmpooler__migration failed with an error: MockError")
|
|
subject.remove_vmpooler_migration_vm(pool, vm)
|
|
end
|
|
end
|
|
|
|
describe '#_check_pool' do
|
|
# Default test fixtures will consist of;
|
|
# - Empty Redis dataset
|
|
# - A single pool with a pool size of zero i.e. no new VMs should be created
|
|
# - Task limit of 10
|
|
let(:config) {
|
|
YAML.load(<<-EOT
|
|
---
|
|
:config:
|
|
task_limit: 10
|
|
:pools:
|
|
- name: #{pool}
|
|
folder: 'vm_folder'
|
|
size: 0
|
|
EOT
|
|
)
|
|
}
|
|
let(:pool_object) { config[:pools][0] }
|
|
let(:vsphere) { double('vsphere') }
|
|
let(:new_vm) { 'newvm'}
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
allow(logger).to receive(:log).with("s", "[!] [#{pool}] is empty")
|
|
end
|
|
|
|
# INVENTORY
|
|
context 'Conducting inventory' do
|
|
before(:each) do
|
|
allow(subject).to receive(:migrate_vm)
|
|
allow(subject).to receive(:check_running_vm)
|
|
allow(subject).to receive(:check_ready_vm)
|
|
allow(subject).to receive(:check_pending_vm)
|
|
allow(subject).to receive(:destroy_vm)
|
|
allow(subject).to receive(:clone_vm)
|
|
end
|
|
|
|
it 'should log an error if one occurs' do
|
|
expect(vsphere).to receive(:find_folder).and_raise(RuntimeError,'Mock Error')
|
|
expect(logger).to receive(:log).with('s', "[!] [#{pool}] _check_pool failed with an error while inspecting inventory: Mock Error")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should log the discovery of VMs' do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([new_vm]))
|
|
expect(logger).to receive(:log).with('s', "[?] [#{pool}] '#{new_vm}' added to 'discovered' queue")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should add undiscovered VMs to the completed queue' do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([new_vm]))
|
|
allow(logger).to receive(:log).with('s', "[?] [#{pool}] '#{new_vm}' added to 'discovered' queue")
|
|
|
|
expect(redis.sismember("vmpooler__discovered__#{pool}", new_vm)).to be(false)
|
|
expect(redis.sismember("vmpooler__completed__#{pool}", new_vm)).to be(false)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
|
|
expect(redis.sismember("vmpooler__discovered__#{pool}", new_vm)).to be(false)
|
|
expect(redis.sismember("vmpooler__completed__#{pool}", new_vm)).to be(true)
|
|
end
|
|
|
|
['running','ready','pending','completed','discovered','migrating'].each do |queue_name|
|
|
it "should not discover VMs in the #{queue_name} queue" do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([new_vm]))
|
|
|
|
expect(logger).to receive(:log).with('s', "[?] [#{pool}] '#{new_vm}' added to 'discovered' queue").exactly(0).times
|
|
expect(redis.sismember("vmpooler__discovered__#{pool}", new_vm)).to be(false)
|
|
redis.sadd("vmpooler__#{queue_name}__#{pool}", new_vm)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
|
|
if queue_name == 'discovered'
|
|
# Discovered VMs end up in the completed queue
|
|
expect(redis.sismember("vmpooler__completed__#{pool}", new_vm)).to be(true)
|
|
else
|
|
expect(redis.sismember("vmpooler__#{queue_name}__#{pool}", new_vm)).to be(true)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
# RUNNING
|
|
context 'Running VM not in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([new_vm]))
|
|
expect(logger).to receive(:log).with('s', "[?] [#{pool}] '#{new_vm}' added to 'discovered' queue")
|
|
create_running_vm(pool,vm,token)
|
|
end
|
|
|
|
it 'should not do anything' do
|
|
expect(subject).to receive(:check_running_vm).exactly(0).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
context 'Running VM in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
allow(subject).to receive(:check_running_vm)
|
|
create_running_vm(pool,vm,token)
|
|
end
|
|
|
|
it 'should log an error if one occurs' do
|
|
expect(subject).to receive(:check_running_vm).and_raise(RuntimeError,'MockError')
|
|
expect(logger).to receive(:log).with('d', "[!] [#{pool}] _check_pool with an error while evaluating running VMs: MockError")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should use the VM lifetime in preference to defaults' do
|
|
big_lifetime = 2000
|
|
|
|
redis.hset("vmpooler__vm__#{vm}", 'lifetime',big_lifetime)
|
|
# The lifetime comes in as string
|
|
expect(subject).to receive(:check_running_vm).with(vm,pool,"#{big_lifetime}",vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should use the configuration default if the VM lifetime is not set' do
|
|
config[:config]['vm_lifetime'] = 50
|
|
expect(subject).to receive(:check_running_vm).with(vm,pool,50,vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should use a lifetime of 12 if nothing is set' do
|
|
expect(subject).to receive(:check_running_vm).with(vm,pool,12,vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
# READY
|
|
context 'Ready VM not in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([new_vm]))
|
|
expect(logger).to receive(:log).with('s', "[?] [#{pool}] '#{new_vm}' added to 'discovered' queue")
|
|
create_ready_vm(pool,vm,token)
|
|
end
|
|
|
|
it 'should not do anything' do
|
|
expect(subject).to receive(:check_ready_vm).exactly(0).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
context 'Ready VM in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
allow(subject).to receive(:check_ready_vm)
|
|
create_ready_vm(pool,vm,token)
|
|
end
|
|
|
|
it 'should log an error if one occurs' do
|
|
expect(subject).to receive(:check_ready_vm).and_raise(RuntimeError,'MockError')
|
|
expect(logger).to receive(:log).with('d', "[!] [#{pool}] _check_pool failed with an error while evaluating ready VMs: MockError")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should use the pool TTL if set' do
|
|
big_lifetime = 2000
|
|
|
|
config[:pools][0]['ready_ttl'] = big_lifetime
|
|
expect(subject).to receive(:check_ready_vm).with(vm,pool,big_lifetime,vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should use a pool TTL of zero if none set' do
|
|
expect(subject).to receive(:check_ready_vm).with(vm,pool,0,vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
# PENDING
|
|
context 'Pending VM not in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([new_vm]))
|
|
expect(logger).to receive(:log).with('s', "[?] [#{pool}] '#{new_vm}' added to 'discovered' queue")
|
|
create_pending_vm(pool,vm,token)
|
|
end
|
|
|
|
it 'should call fail_pending_vm' do
|
|
expect(subject).to receive(:check_ready_vm).exactly(0).times
|
|
expect(subject).to receive(:fail_pending_vm).with(vm,pool,Integer,false)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
context 'Pending VM in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
allow(subject).to receive(:check_pending_vm)
|
|
create_pending_vm(pool,vm,token)
|
|
end
|
|
|
|
it 'should log an error if one occurs' do
|
|
expect(subject).to receive(:check_pending_vm).and_raise(RuntimeError,'MockError')
|
|
expect(logger).to receive(:log).with('d', "[!] [#{pool}] _check_pool failed with an error while evaluating pending VMs: MockError")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should use the pool timeout if set' do
|
|
big_lifetime = 2000
|
|
|
|
config[:pools][0]['timeout'] = big_lifetime
|
|
expect(subject).to receive(:check_pending_vm).with(vm,pool,big_lifetime,vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should use the configuration setting if the pool timeout is not set' do
|
|
big_lifetime = 2000
|
|
|
|
config[:config]['timeout'] = big_lifetime
|
|
expect(subject).to receive(:check_pending_vm).with(vm,pool,big_lifetime,vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should use a pool timeout of 15 if nothing is set' do
|
|
expect(subject).to receive(:check_pending_vm).with(vm,pool,15,vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
# COMPLETED
|
|
context 'Completed VM not in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([new_vm]))
|
|
expect(logger).to receive(:log).with('s', "[?] [#{pool}] '#{new_vm}' added to 'discovered' queue")
|
|
expect(logger).to receive(:log).with('s', "[!] [#{pool}] '#{vm}' not found in inventory, removed from 'completed' queue")
|
|
create_completed_vm(vm,pool,true)
|
|
end
|
|
|
|
it 'should log a message' do
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should not call destroy_vm' do
|
|
expect(subject).to receive(:destroy_vm).exactly(0).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should remove redis information' do
|
|
expect(redis.sismember("vmpooler__completed__#{pool}",vm)).to be(true)
|
|
expect(redis.hget("vmpooler__vm__#{vm}", 'checkout')).to_not be(nil)
|
|
expect(redis.hget("vmpooler__active__#{pool}",vm)).to_not be(nil)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
|
|
expect(redis.sismember("vmpooler__completed__#{pool}",vm)).to be(false)
|
|
expect(redis.hget("vmpooler__vm__#{vm}", 'checkout')).to be(nil)
|
|
expect(redis.hget("vmpooler__active__#{pool}",vm)).to be(nil)
|
|
end
|
|
end
|
|
|
|
context 'Completed VM in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
create_completed_vm(vm,pool,true)
|
|
end
|
|
|
|
it 'should call destroy_vm' do
|
|
expect(subject).to receive(:destroy_vm)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
context 'with an error during destroy_vm' do
|
|
before(:each) do
|
|
expect(subject).to receive(:destroy_vm).and_raise(RuntimeError,"MockError")
|
|
expect(logger).to receive(:log).with('d', "[!] [#{pool}] _check_pool failed with an error while evaluating completed VMs: MockError")
|
|
end
|
|
|
|
it 'should log a message' do
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should remove redis information' do
|
|
expect(redis.sismember("vmpooler__completed__#{pool}",vm)).to be(true)
|
|
expect(redis.hget("vmpooler__vm__#{vm}", 'checkout')).to_not be(nil)
|
|
expect(redis.hget("vmpooler__active__#{pool}",vm)).to_not be(nil)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
|
|
expect(redis.sismember("vmpooler__completed__#{pool}",vm)).to be(false)
|
|
expect(redis.hget("vmpooler__vm__#{vm}", 'checkout')).to be(nil)
|
|
expect(redis.hget("vmpooler__active__#{pool}",vm)).to be(nil)
|
|
end
|
|
end
|
|
end
|
|
|
|
# DISCOVERED
|
|
context 'Discovered VM' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
create_discovered_vm(vm,pool)
|
|
end
|
|
|
|
it 'should be moved to the completed queue' do
|
|
subject._check_pool(pool_object,vsphere)
|
|
|
|
expect(redis.sismember("vmpooler__completed__#{pool}", vm)).to be(true)
|
|
end
|
|
|
|
it 'should log a message if an error occurs' do
|
|
expect(redis).to receive(:smove).with("vmpooler__discovered__#{pool}", "vmpooler__completed__#{pool}", vm).and_raise(RuntimeError,'MockError')
|
|
expect(logger).to receive(:log).with("d", "[!] [#{pool}] _check_pool failed with an error while evaluating discovered VMs: MockError")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
['pending','ready','running','completed'].each do |queue_name|
|
|
context "exists in the #{queue_name} queue" do
|
|
before(:each) do
|
|
allow(subject).to receive(:migrate_vm)
|
|
allow(subject).to receive(:check_running_vm)
|
|
allow(subject).to receive(:check_ready_vm)
|
|
allow(subject).to receive(:check_pending_vm)
|
|
allow(subject).to receive(:destroy_vm)
|
|
allow(subject).to receive(:clone_vm)
|
|
end
|
|
|
|
it "should remain in the #{queue_name} queue" do
|
|
redis.sadd("vmpooler__#{queue_name}__#{pool}", vm)
|
|
allow(logger).to receive(:log)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
|
|
expect(redis.sismember("vmpooler__#{queue_name}__#{pool}", vm)).to be(true)
|
|
end
|
|
|
|
it "should be removed from the discovered queue" do
|
|
redis.sadd("vmpooler__#{queue_name}__#{pool}", vm)
|
|
allow(logger).to receive(:log)
|
|
|
|
expect(redis.sismember("vmpooler__discovered__#{pool}", vm)).to be(true)
|
|
subject._check_pool(pool_object,vsphere)
|
|
expect(redis.sismember("vmpooler__discovered__#{pool}", vm)).to be(false)
|
|
end
|
|
|
|
it "should log a message" do
|
|
redis.sadd("vmpooler__#{queue_name}__#{pool}", vm)
|
|
expect(logger).to receive(:log).with('d', "[!] [#{pool}] '#{vm}' found in '#{queue_name}', removed from 'discovered' queue")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
# MIGRATIONS
|
|
context 'Migrating VM not in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([new_vm]))
|
|
expect(logger).to receive(:log).with('s', "[?] [#{pool}] '#{new_vm}' added to 'discovered' queue")
|
|
create_migrating_vm(vm,pool)
|
|
end
|
|
|
|
it 'should not do anything' do
|
|
expect(subject).to receive(:migrate_vm).exactly(0).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
context 'Migrating VM in the inventory' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
allow(subject).to receive(:check_ready_vm)
|
|
allow(logger).to receive(:log).with("s", "[!] [#{pool}] is empty")
|
|
create_migrating_vm(vm,pool)
|
|
end
|
|
|
|
it 'should log an error if one occurs' do
|
|
expect(subject).to receive(:migrate_vm).and_raise(RuntimeError,'MockError')
|
|
expect(logger).to receive(:log).with('s', "[x] [#{pool}] '#{vm}' failed to migrate: MockError")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should call migrate_vm' do
|
|
expect(subject).to receive(:migrate_vm).with(vm,pool,vsphere)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
# REPOPULATE
|
|
context 'Repopulate a pool' do
|
|
it 'should not call clone_vm when number of VMs is equal to the pool size' do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([]))
|
|
expect(subject).to receive(:clone_vm).exactly(0).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should not call clone_vm when number of VMs is greater than the pool size' do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
create_ready_vm(pool,vm,token)
|
|
expect(subject).to receive(:clone_vm).exactly(0).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
['ready','pending'].each do |queue_name|
|
|
it "should use VMs in #{queue_name} queue to caculate pool size" do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
expect(subject).to receive(:clone_vm).exactly(0).times
|
|
# Modify the pool size to 1 and add a VM in the queue
|
|
redis.sadd("vmpooler__#{queue_name}__#{pool}",vm)
|
|
config[:pools][0]['size'] = 1
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
['running','completed','discovered','migrating'].each do |queue_name|
|
|
it "should not use VMs in #{queue_name} queue to caculate pool size" do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([vm]))
|
|
expect(subject).to receive(:clone_vm)
|
|
# Modify the pool size to 1 and add a VM in the queue
|
|
redis.sadd("vmpooler__#{queue_name}__#{pool}",vm)
|
|
config[:pools][0]['size'] = 1
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
|
|
it 'should log a message the first time a pool is empty' do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([]))
|
|
expect(logger).to receive(:log).with('s', "[!] [#{pool}] is empty")
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
context 'when pool is marked as empty' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([]))
|
|
redis.set("vmpooler__empty__#{pool}", 'true')
|
|
end
|
|
|
|
it 'should not log a message when the pool remains empty' do
|
|
expect(logger).to receive(:log).with('s', "[!] [#{pool}] is empty").exactly(0).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should remove the empty pool mark if it is no longer empty' do
|
|
create_ready_vm(pool,vm,token)
|
|
|
|
expect(redis.get("vmpooler__empty__#{pool}")).to be_truthy
|
|
subject._check_pool(pool_object,vsphere)
|
|
expect(redis.get("vmpooler__empty__#{pool}")).to be_falsey
|
|
end
|
|
end
|
|
|
|
context 'when number of VMs is less than the pool size' do
|
|
before(:each) do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([]))
|
|
end
|
|
|
|
it 'should call clone_vm to populate the pool' do
|
|
pool_size = 5
|
|
config[:pools][0]['size'] = pool_size
|
|
|
|
expect(subject).to receive(:clone_vm).exactly(pool_size).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'should call clone_vm until task_limit is hit' do
|
|
task_limit = 2
|
|
pool_size = 5
|
|
config[:pools][0]['size'] = pool_size
|
|
config[:config]['task_limit'] = task_limit
|
|
|
|
expect(subject).to receive(:clone_vm).exactly(task_limit).times
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'log a message if a cloning error occurs' do
|
|
pool_size = 1
|
|
config[:pools][0]['size'] = pool_size
|
|
|
|
expect(subject).to receive(:clone_vm).and_raise(RuntimeError,"MockError")
|
|
expect(logger).to receive(:log).with("s", "[!] [#{pool}] clone failed during check_pool with an error: MockError")
|
|
expect(logger).to receive(:log).with('d', "[!] [#{pool}] _check_pool failed with an error: MockError")
|
|
|
|
expect{ subject._check_pool(pool_object,vsphere) }.to raise_error(RuntimeError,'MockError')
|
|
end
|
|
end
|
|
|
|
context 'export metrics' do
|
|
it 'increments metrics for ready queue' do
|
|
create_ready_vm(pool,'vm1')
|
|
create_ready_vm(pool,'vm2')
|
|
create_ready_vm(pool,'vm3')
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new(['vm1','vm2','vm3']))
|
|
|
|
expect(metrics).to receive(:gauge).with("ready.#{pool}", 3)
|
|
allow(metrics).to receive(:gauge)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'increments metrics for running queue' do
|
|
create_running_vm(pool,'vm1',token)
|
|
create_running_vm(pool,'vm2',token)
|
|
create_running_vm(pool,'vm3',token)
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new(['vm1','vm2','vm3']))
|
|
|
|
expect(metrics).to receive(:gauge).with("running.#{pool}", 3)
|
|
allow(metrics).to receive(:gauge)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
|
|
it 'increments metrics with 0 when pool empty' do
|
|
expect(vsphere).to receive(:find_folder).and_return(MockFindFolder.new([]))
|
|
|
|
expect(metrics).to receive(:gauge).with("ready.#{pool}", 0)
|
|
expect(metrics).to receive(:gauge).with("running.#{pool}", 0)
|
|
|
|
subject._check_pool(pool_object,vsphere)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '#_create_vm_snapshot' do
|
|
let(:snapshot_manager) { 'snapshot_manager' }
|
|
let(:pool_helper) { double('snapshot_manager') }
|
|
let(:vsphere) { {snapshot_manager => pool_helper} }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
$vsphere = vsphere
|
|
end
|
|
|
|
context '(valid host)' do
|
|
let(:vm_host) { double('vmhost') }
|
|
|
|
it 'creates a snapshot' do
|
|
expect(vsphere).to receive(:find_vm).and_return vm_host
|
|
expect(logger).to receive(:log)
|
|
expect(vm_host).to receive_message_chain(:CreateSnapshot_Task, :wait_for_completion)
|
|
expect(redis).to receive(:hset).with('vmpooler__vm__testvm', 'snapshot:testsnapshot', Time.now.to_s)
|
|
expect(logger).to receive(:log)
|
|
|
|
subject._create_vm_snapshot('testvm', 'testsnapshot', vsphere)
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '#_revert_vm_snapshot' do
|
|
let(:snapshot_manager) { 'snapshot_manager' }
|
|
let(:pool_helper) { double('snapshot_manager') }
|
|
let(:vsphere) { {snapshot_manager => pool_helper} }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
$vsphere = vsphere
|
|
end
|
|
|
|
context '(valid host)' do
|
|
let(:vm_host) { double('vmhost') }
|
|
let(:vm_snapshot) { double('vmsnapshot') }
|
|
|
|
it 'reverts a snapshot' do
|
|
expect(vsphere).to receive(:find_vm).and_return vm_host
|
|
expect(vsphere).to receive(:find_snapshot).and_return vm_snapshot
|
|
expect(logger).to receive(:log)
|
|
expect(vm_snapshot).to receive_message_chain(:RevertToSnapshot_Task, :wait_for_completion)
|
|
expect(logger).to receive(:log)
|
|
|
|
subject._revert_vm_snapshot('testvm', 'testsnapshot', vsphere)
|
|
end
|
|
end
|
|
end
|
|
|
|
describe '#_check_snapshot_queue' do
|
|
let(:pool_helper) { double('pool') }
|
|
let(:vsphere) { {pool => pool_helper} }
|
|
|
|
before do
|
|
expect(subject).not_to be_nil
|
|
$vsphere = vsphere
|
|
end
|
|
|
|
it 'checks appropriate redis queues' do
|
|
expect(redis).to receive(:spop).with('vmpooler__tasks__snapshot')
|
|
expect(redis).to receive(:spop).with('vmpooler__tasks__snapshot-revert')
|
|
|
|
subject._check_snapshot_queue(vsphere)
|
|
end
|
|
end
|
|
end
|