mirror of
https://github.com/puppetlabs/vmpooler.git
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86e92de4cf
This change adds a capability to vmpooler to provision instances on demand. Without this change vmpooler only supports retrieving machines from pre-provisioned pools. Additionally, this change refactors redis interactions to reduce round trips to redis. Specifically, multi and pipelined redis commands are added where possible to reduce the number of times we are calling redis. To support the redis refactor the redis interaction has changed to leveraging a connection pool. In addition to offering multiple connections for pool manager to use, the redis interactions in pool manager are now thread safe. Ready TTL is now a global parameter that can be set as a default for all pools. A default of 0 has been removed, because this is an unreasonable default behavior, which would leave a provisioned instance in the pool indefinitely. Pool empty messages have been removed when the pool size is set to 0. Without this change, when a pool was set to a size of 0 the API and pool manager would both show that a pool is empty.
240 lines
9.7 KiB
Ruby
240 lines
9.7 KiB
Ruby
require 'spec_helper'
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require 'rack/test'
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def has_set_tag?(vm, tag, value)
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value == redis.hget("vmpooler__vm__#{vm}", "tag:#{tag}")
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end
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describe Vmpooler::API::V1 do
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include Rack::Test::Methods
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def app()
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Vmpooler::API
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end
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describe 'status and metrics endpoints' do
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let(:prefix) { '/api/v1' }
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let(:config) {
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{
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config: {
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'site_name' => 'test pooler',
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'vm_lifetime_auth' => 2,
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},
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pools: [
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{'name' => 'pool1', 'size' => 5, 'alias' => ['poolone', 'poolun']},
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{'name' => 'pool2', 'size' => 10},
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{'name' => 'pool3', 'size' => 10, 'alias' => 'NotArray'}
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]
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}
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}
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let(:current_time) { Time.now }
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before(:each) do
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app.settings.set :config, config
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app.settings.set :redis, redis
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app.settings.set :config, auth: false
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create_token('abcdefghijklmnopqrstuvwxyz012345', 'jdoe', current_time)
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end
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describe 'GET /status' do
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it 'returns the configured maximum size for each pool' do
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get "#{prefix}/status/"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["pools"]["pool1"]["max"]).to be(5)
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expect(result["pools"]["pool2"]["max"]).to be(10)
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end
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it 'returns the number of ready vms for each pool' do
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3.times {|i| create_ready_vm("pool1", "vm-#{i}", redis) }
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get "#{prefix}/status/"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["pools"]["pool1"]["ready"]).to be(3)
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expect(result["pools"]["pool2"]["ready"]).to be(0)
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end
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it 'returns the number of running vms for each pool' do
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3.times {|i| create_running_vm("pool1", "vm-#{i}", redis) }
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4.times {|i| create_running_vm("pool2", "vm-#{i}", redis) }
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get "#{prefix}/status/"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["pools"]["pool1"]["running"]).to be(3)
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expect(result["pools"]["pool2"]["running"]).to be(4)
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end
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it 'returns the number of pending vms for each pool' do
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3.times {|i| create_pending_vm("pool1", "vm-#{i}", redis) }
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4.times {|i| create_pending_vm("pool2", "vm-#{i}", redis) }
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get "#{prefix}/status/"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["pools"]["pool1"]["pending"]).to be(3)
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expect(result["pools"]["pool2"]["pending"]).to be(4)
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end
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it 'returns aliases if configured in the pool' do
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get "#{prefix}/status/"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["pools"]["pool1"]["alias"]).to eq(['poolone', 'poolun'])
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expect(result["pools"]["pool2"]["alias"]).to be(nil)
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expect(result["pools"]["pool3"]["alias"]).to eq('NotArray')
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end
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it '(for v1 backwards compatibility) lists any empty pools in the status section' do
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get "#{prefix}/status/"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["status"]["empty"].sort).to eq(["pool1", "pool2", "pool3"])
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end
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end
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describe 'GET /status with view query parameter' do
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it 'returns capacity when specified' do
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get "#{prefix}/status?view=capacity"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["capacity"]).to_not be(nil)
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expect(result["queue"]).to be(nil)
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expect(result["clone"]).to be(nil)
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expect(result["boot"]).to be(nil)
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expect(result["pools"]).to be(nil)
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expect(result["status"]).to_not be(nil)
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end
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it 'returns pools and queue when specified' do
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get "#{prefix}/status?view=pools,queue"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["capacity"]).to be(nil)
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expect(result["queue"]).to_not be(nil)
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expect(result["clone"]).to be(nil)
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expect(result["boot"]).to be(nil)
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expect(result["pools"]).to_not be(nil)
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expect(result["status"]).to_not be(nil)
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end
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it 'does nothing with invalid view names' do
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get "#{prefix}/status?view=clone,boot,invalidThingToView"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["capacity"]).to be(nil)
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expect(result["queue"]).to be(nil)
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expect(result["clone"]).to_not be(nil)
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expect(result["boot"]).to_not be(nil)
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expect(result["pools"]).to be(nil)
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expect(result["status"]).to_not be(nil)
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end
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it 'returns everything when view is not specified' do
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get "#{prefix}/status"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["capacity"]).to_not be(nil)
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expect(result["queue"]).to_not be(nil)
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expect(result["clone"]).to_not be(nil)
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expect(result["boot"]).to_not be(nil)
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expect(result["pools"]).to_not be(nil)
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expect(result["status"]).to_not be(nil)
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end
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it 'returns everything when view is alone' do
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get "#{prefix}/status?view"
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["capacity"]).to_not be(nil)
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expect(result["queue"]).to_not be(nil)
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expect(result["clone"]).to_not be(nil)
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expect(result["boot"]).to_not be(nil)
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expect(result["pools"]).to_not be(nil)
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expect(result["status"]).to_not be(nil)
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end
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it 'returns status only when view is empty' do
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get "#{prefix}/status?view="
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# of course /status doesn't conform to the weird standard everything else uses...
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["capacity"]).to be(nil)
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expect(result["queue"]).to be(nil)
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expect(result["clone"]).to be(nil)
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expect(result["boot"]).to be(nil)
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expect(result["pools"]).to be(nil)
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expect(result["status"]).to_not be(nil)
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end
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end
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describe 'GET /poolstat' do
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it 'returns empty list when pool is not set' do
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get "#{prefix}/poolstat"
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result == {})
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end
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it 'returns empty list when pool is not found' do
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get "#{prefix}/poolstat?pool=unknownpool"
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result == {})
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end
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it 'returns one pool when requesting one with alias' do
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get "#{prefix}/poolstat?pool=pool1"
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["pools"].size == 1)
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expect(result["pools"]["pool1"]["ready"]).to eq(0)
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expect(result["pools"]["pool1"]["max"]).to eq(5)
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expect(result["pools"]["pool1"]["alias"]).to eq(['poolone', 'poolun'])
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end
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it 'returns one pool when requesting one without alias' do
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get "#{prefix}/poolstat?pool=pool2"
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["pools"].size == 1)
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expect(result["pools"]["pool2"]["ready"]).to eq(0)
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expect(result["pools"]["pool2"]["max"]).to eq(10)
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expect(result["pools"]["pool2"]["alias"]).to be(nil)
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end
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it 'returns multiple pools when requesting csv' do
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get "#{prefix}/poolstat?pool=pool1,pool2"
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expect(last_response.header['Content-Type']).to eq('application/json')
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result = JSON.parse(last_response.body)
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expect(result["pools"].size == 2)
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end
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end
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describe 'GET /totalrunning' do
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it 'returns the number of running VMs' do
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get "#{prefix}/totalrunning"
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expect(last_response.header['Content-Type']).to eq('application/json')
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5.times {|i| create_running_vm("pool1", "vm-#{i}", redis, redis) }
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5.times {|i| create_running_vm("pool3", "vm-#{i}", redis, redis) }
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result = JSON.parse(last_response.body)
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expect(result["running"] == 10)
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end
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end
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end
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end
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