vmpooler/spec/integration/api/v1/vm_spec.rb

484 lines
17 KiB
Ruby

require 'spec_helper'
require 'rack/test'
describe Vmpooler::API::V1 do
include Rack::Test::Methods
def app()
Vmpooler::API
end
# Added to ensure no leakage in rack state from previous tests.
# Removes all routes, filters, middleware and extension hooks from the current class
# https://rubydoc.info/gems/sinatra/Sinatra/Base#reset!-class_method
before(:each) do
app.reset!
end
describe '/vm' do
let(:prefix) { '/api/v1' }
let(:metrics) { Vmpooler::Metrics::DummyStatsd.new }
let(:config) {
{
config: {
'site_name' => 'test pooler',
'vm_lifetime_auth' => 2
},
pools: [
{'name' => 'pool1', 'size' => 5},
{'name' => 'pool2', 'size' => 10},
{'name' => 'pool3', 'size' => 10}
],
statsd: { 'prefix' => 'stats_prefix'},
alias: { 'poolone' => ['pool1'] },
pool_names: [ 'pool1', 'pool2', 'pool3', 'poolone', 'genericpool' ]
}
}
let(:current_time) { Time.now }
let(:vmname) { 'abcdefghijkl' }
let(:checkoutlock) { Mutex.new }
before(:each) do
expect(app).to receive(:run!).once
app.execute([:api], config, redis, metrics, nil)
app.settings.set :config, auth: false
app.settings.set :checkoutlock, checkoutlock
create_token('abcdefghijklmnopqrstuvwxyz012345', 'jdoe', current_time)
end
describe 'GET /vm/:hostname' do
it 'returns correct information on a running vm' do
create_running_vm 'pool1', vmname, redis
expect(TCPSocket).to receive(:gethostbyname).and_raise(RuntimeError)
get "#{prefix}/vm/#{vmname}"
expect_json(ok = true, http = 200)
response_body = (JSON.parse(last_response.body)[vmname])
expect(response_body["template"]).to eq("pool1")
expect(response_body["lifetime"]).to eq(0)
expect(response_body["running"]).to be >= 0
expect(response_body["remaining"]).to be <= 0
expect(response_body["start_time"]).to eq(current_time.to_datetime.rfc3339)
expect(response_body["end_time"]).to eq(current_time.to_datetime.rfc3339)
expect(response_body["state"]).to eq("running")
expect(response_body["ip"]).to eq("")
expect(response_body["host"]).to eq("host1")
end
end
describe 'POST /vm' do
context 'has a gce provider config' do
it 'get the dsn_zone as domain when gce provider' do
create_ready_vm 'pool1', vmname, redis
# change running config
app.settings.set :config, providers: { 'gce' => { 'dns_zone' => 'example.com' } }
expect_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).with(vmname, "example.com")
post "#{prefix}/vm", '{"pool1":"1"}'
end
it 'get the dsn_zone as domain when foo provider has provider_class set to gce' do
create_ready_vm 'pool1', vmname, redis
# change running config
app.settings.set :config, providers: { 'foo' => { 'dns_zone' => 'example.com', 'provider_class' => 'gce' } }
app.settings.set :config, pools: [ {'name' => 'pool1', 'size' => 5, 'provider' => 'foo'} ]
expect_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).with(vmname, "example.com")
post "#{prefix}/vm", '{"pool1":"1"}'
end
it 'skips when dsn_zone is not available' do
create_ready_vm 'pool1', vmname, redis
# change running config
app.settings.set :config, providers: { 'foo' => { 'dns_zone' => 'example.com', 'provider_class' => 'gce' },
'bar' => { 'provider_class' => 'gce' } }
app.settings.set :config, pools: [ {'name' => 'pool1', 'size' => 5, 'provider' => 'bar'} ]
expect_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).with(vmname, nil)
post "#{prefix}/vm", '{"pool1":"1"}'
end
it 'skips when it is another provider that does not exist' do
create_ready_vm 'pool1', vmname, redis
# change running config
app.settings.set :config, providers: { 'foo' => { 'dns_zone' => 'example.com', 'provider_class' => 'gce' },
'bar' => { 'provider_class' => 'another' } }
app.settings.set :config, pools: [ {'name' => 'pool1', 'size' => 5, 'provider' => 'not_set'} ]
expect_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).with(vmname, nil)
post "#{prefix}/vm", '{"pool1":"1"}'
end
it 'skips when it is another provider' do
create_ready_vm 'pool1', vmname, redis
# change running config
app.settings.set :config, providers: { 'foo' => { 'dns_zone' => 'example.com', 'provider_class' => 'gce' },
'bar' => { 'provider_class' => 'another' } }
app.settings.set :config, pools: [ {'name' => 'pool1', 'size' => 5, 'provider' => 'bar'} ]
expect_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).with(vmname, nil)
post "#{prefix}/vm", '{"pool1":"1"}'
end
end
let(:socket) { double('socket') }
it 'returns a single VM' do
create_ready_vm 'pool1', vmname, redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"1"}'
expect_json(ok = true, http = 200)
expected = {
ok: true,
pool1: {
hostname: vmname
}
}
expect(last_response.body).to eq(JSON.pretty_generate(expected))
end
it 'returns a single VM for an alias' do
create_ready_vm 'pool1', vmname, redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"poolone":"1"}'
expect_json(ok = true, http = 200)
expected = {
ok: true,
poolone: {
hostname: vmname
}
}
expect(last_response.body).to eq(JSON.pretty_generate(expected))
end
it 'fails on nonexistant pools' do
post "#{prefix}/vm", '{"poolpoolpool":"1"}'
expect_json(ok = false, http = 404)
end
it 'returns 503 for empty pool when aliases are not defined' do
app.settings.config.delete(:alias)
app.settings.config[:pool_names] = ['pool1', 'pool2']
create_ready_vm 'pool1', vmname, redis
post "#{prefix}/vm/pool1"
post "#{prefix}/vm/pool1"
expected = { ok: false }
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = false, http = 503)
end
it 'returns 503 for empty pool referenced by alias' do
create_ready_vm 'pool1', vmname, redis
post "#{prefix}/vm/poolone"
post "#{prefix}/vm/poolone"
expected = { ok: false }
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = false, http = 503)
end
it 'returns multiple VMs' do
create_ready_vm 'pool1', vmname, redis
create_ready_vm 'pool2', 'qrstuvwxyz012345', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"1","pool2":"1"}'
expect_json(ok = true, http = 200)
expected = {
ok: true,
pool1: {
hostname: vmname
},
pool2: {
hostname: 'qrstuvwxyz012345'
}
}
expect(last_response.body).to eq(JSON.pretty_generate(expected))
end
it 'returns multiple VMs even when multiple instances from the same pool are requested' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
create_ready_vm 'pool1', '2abcdefghijklmnop', redis
create_ready_vm 'pool2', 'qrstuvwxyz012345', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"2","pool2":"1"}'
expected = {
ok: true,
pool1: {
hostname: [ '1abcdefghijklmnop', '2abcdefghijklmnop' ]
},
pool2: {
hostname: 'qrstuvwxyz012345'
}
}
result = JSON.parse(last_response.body)
expect(result['ok']).to eq(true)
expect(result['pool1']['hostname']).to include('1abcdefghijklmnop', '2abcdefghijklmnop')
expect(result['pool2']['hostname']).to eq('qrstuvwxyz012345')
expect_json(ok = true, http = 200)
end
it 'returns multiple VMs even when multiple instances from multiple pools are requested' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
create_ready_vm 'pool1', '2abcdefghijklmnop', redis
create_ready_vm 'pool2', '1qrstuvwxyz012345', redis
create_ready_vm 'pool2', '2qrstuvwxyz012345', redis
create_ready_vm 'pool2', '3qrstuvwxyz012345', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"2","pool2":"3"}'
expected = {
ok: true,
pool1: {
hostname: [ '1abcdefghijklmnop', '2abcdefghijklmnop' ]
},
pool2: {
hostname: [ '1qrstuvwxyz012345', '2qrstuvwxyz012345', '3qrstuvwxyz012345' ]
}
}
result = JSON.parse(last_response.body)
expect(result['ok']).to eq(true)
expect(result['pool1']['hostname']).to include('1abcdefghijklmnop', '2abcdefghijklmnop')
expect(result['pool2']['hostname']).to include('1qrstuvwxyz012345', '2qrstuvwxyz012345', '3qrstuvwxyz012345')
expect_json(ok = true, http = 200)
end
it 'returns VMs from multiple backend pools requested by an alias' do
Vmpooler::API.settings.config[:alias]['genericpool'] = ['pool1', 'pool2', 'pool3']
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
create_ready_vm 'pool2', '2abcdefghijklmnop', redis
create_ready_vm 'pool3', '1qrstuvwxyz012345', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"genericpool":"3"}'
expected = {
ok: true,
genericpool: {
hostname: [ '1abcdefghijklmnop', '2abcdefghijklmnop', '1qrstuvwxyz012345' ]
}
}
result = JSON.parse(last_response.body)
expect(result['ok']).to eq(true)
expect(result['genericpool']['hostname']).to include('1abcdefghijklmnop', '2abcdefghijklmnop', '1qrstuvwxyz012345')
expect_json(ok = true, http = 200)
end
it 'returns the first VM that was moved to the ready state when checking out a VM' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
create_ready_vm 'pool1', '2abcdefghijklmnop', redis
create_ready_vm 'pool1', '3abcdefghijklmnop', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"1"}'
expected = {
ok: true,
"pool1": {
"hostname": "1abcdefghijklmnop"
}
}
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = true, http = 200)
end
it 'fails when not all requested vms can be allocated' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
post "#{prefix}/vm", '{"pool1":"1","pool2":"1"}'
expected = { ok: false }
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = false, http = 503)
end
it 'returns any checked out vms to their pools when not all requested vms can be allocated' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"1","pool2":"1"}'
expected = { ok: false }
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = false, http = 503)
expect(pool_has_ready_vm?('pool1', '1abcdefghijklmnop', redis)).to eq(true)
end
it 'fails when not all requested vms can be allocated, when requesting multiple instances from a pool' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
post "#{prefix}/vm", '{"pool1":"2","pool2":"1"}'
expected = { ok: false }
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = false, http = 503)
end
it 'returns any checked out vms to their pools when not all requested vms can be allocated, when requesting multiple instances from a pool' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"2","pool2":"1"}'
expected = { ok: false }
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = false, http = 503)
expect(pool_has_ready_vm?('pool1', '1abcdefghijklmnop', redis)).to eq(true)
end
it 'fails when not all requested vms can be allocated, when requesting multiple instances from multiple pools' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
post "#{prefix}/vm", '{"pool1":"2","pool2":"3"}'
expected = { ok: false }
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = false, http = 503)
end
it 'returns any checked out vms to their pools when not all requested vms can be allocated, when requesting multiple instances from multiple pools' do
create_ready_vm 'pool1', '1abcdefghijklmnop', redis
create_ready_vm 'pool1', '2abcdefghijklmnop', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"2","pool2":"3"}'
expected = { ok: false }
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect_json(ok = false, http = 503)
expect(pool_has_ready_vm?('pool1', '1abcdefghijklmnop', redis)).to eq(true)
expect(pool_has_ready_vm?('pool1', '2abcdefghijklmnop', redis)).to eq(true)
end
it 'returns the second VM when the first fails to respond' do
create_ready_vm 'pool1', vmname, redis
create_ready_vm 'pool1', "2#{vmname}", redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).with(vmname, nil).and_raise('mockerror')
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).with("2#{vmname}", nil).and_return(socket)
post "#{prefix}/vm", '{"pool1":"1"}'
expect_json(ok = true, http = 200)
expected = {
ok: true,
pool1: {
hostname: "2#{vmname}"
}
}
expect(last_response.body).to eq(JSON.pretty_generate(expected))
expect(pool_has_ready_vm?('pool1', vmname, redis)).to be false
end
context '(auth not configured)' do
it 'does not extend VM lifetime if auth token is provided' do
app.settings.set :config, auth: false
create_ready_vm 'pool1', 'abcdefghijklmnop', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"1"}', {
'HTTP_X_AUTH_TOKEN' => 'abcdefghijklmnopqrstuvwxyz012345'
}
expect_json(ok = true, http = 200)
expected = {
ok: true,
pool1: {
hostname: 'abcdefghijklmnop'
}
}
expect(last_response.body).to eq(JSON.pretty_generate(expected))
vm = fetch_vm('abcdefghijklmnop')
expect(vm['lifetime']).to be_nil
end
end
context '(auth configured)' do
it 'extends VM lifetime if auth token is provided' do
app.settings.set :config, auth: true
create_ready_vm 'pool1', 'abcdefghijklmnop', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"1"}', {
'HTTP_X_AUTH_TOKEN' => 'abcdefghijklmnopqrstuvwxyz012345'
}
expect_json(ok = true, http = 200)
expected = {
ok: true,
pool1: {
hostname: 'abcdefghijklmnop'
}
}
expect(last_response.body).to eq(JSON.pretty_generate(expected))
vm = fetch_vm('abcdefghijklmnop')
expect(vm['lifetime'].to_i).to eq(2)
end
it 'does not extend VM lifetime if auth token is not provided' do
app.settings.set :config, auth: true
create_ready_vm 'pool1', 'abcdefghijklmnop', redis
allow_any_instance_of(Vmpooler::API::Helpers).to receive(:open_socket).and_return(socket)
post "#{prefix}/vm", '{"pool1":"1"}'
expect_json(ok = true, http = 200)
expected = {
ok: true,
pool1: {
hostname: 'abcdefghijklmnop'
}
}
expect(last_response.body).to eq(JSON.pretty_generate(expected))
vm = fetch_vm('abcdefghijklmnop')
expect(vm['lifetime']).to be_nil
end
end
end
end
end