debian-mirror-gitlab/spec/lib/gitlab/sidekiq_cluster/cli_spec.rb
2020-08-09 17:41:57 +05:30

301 lines
11 KiB
Ruby

# frozen_string_literal: true
require 'fast_spec_helper'
require 'rspec-parameterized'
RSpec.describe Gitlab::SidekiqCluster::CLI do
let(:cli) { described_class.new('/dev/null') }
let(:timeout) { described_class::DEFAULT_SOFT_TIMEOUT_SECONDS }
let(:default_options) do
{ env: 'test', directory: Dir.pwd, max_concurrency: 50, min_concurrency: 0, dryrun: false, timeout: timeout }
end
before do
stub_env('RAILS_ENV', 'test')
end
describe '#run' do
context 'without any arguments' do
it 'raises CommandError' do
expect { cli.run([]) }.to raise_error(described_class::CommandError)
end
end
context 'with arguments' do
before do
allow(cli).to receive(:write_pid)
allow(cli).to receive(:trap_signals)
allow(cli).to receive(:start_loop)
end
it 'starts the Sidekiq workers' do
expect(Gitlab::SidekiqCluster).to receive(:start)
.with([['foo']], default_options)
.and_return([])
cli.run(%w(foo))
end
it 'allows the special * selector' do
worker_queues = %w(foo bar baz)
expect(Gitlab::SidekiqConfig::CliMethods)
.to receive(:worker_queues).and_return(worker_queues)
expect(Gitlab::SidekiqCluster)
.to receive(:start).with([worker_queues], default_options)
cli.run(%w(*))
end
context 'with --negate flag' do
it 'starts Sidekiq workers for all queues in all_queues.yml except the ones in argv' do
expect(Gitlab::SidekiqConfig::CliMethods).to receive(:worker_queues).and_return(['baz'])
expect(Gitlab::SidekiqCluster).to receive(:start)
.with([['baz']], default_options)
.and_return([])
cli.run(%w(foo -n))
end
end
context 'with --max-concurrency flag' do
it 'starts Sidekiq workers for specified queues with a max concurrency' do
expect(Gitlab::SidekiqConfig::CliMethods).to receive(:worker_queues).and_return(%w(foo bar baz))
expect(Gitlab::SidekiqCluster).to receive(:start)
.with([%w(foo bar baz), %w(solo)], default_options.merge(max_concurrency: 2))
.and_return([])
cli.run(%w(foo,bar,baz solo -m 2))
end
end
context 'with --min-concurrency flag' do
it 'starts Sidekiq workers for specified queues with a min concurrency' do
expect(Gitlab::SidekiqConfig::CliMethods).to receive(:worker_queues).and_return(%w(foo bar baz))
expect(Gitlab::SidekiqCluster).to receive(:start)
.with([%w(foo bar baz), %w(solo)], default_options.merge(min_concurrency: 2))
.and_return([])
cli.run(%w(foo,bar,baz solo --min-concurrency 2))
end
end
context '-timeout flag' do
it 'when given', 'starts Sidekiq workers with given timeout' do
expect(Gitlab::SidekiqCluster).to receive(:start)
.with([['foo']], default_options.merge(timeout: 10))
cli.run(%w(foo --timeout 10))
end
it 'when not given', 'starts Sidekiq workers with default timeout' do
expect(Gitlab::SidekiqCluster).to receive(:start)
.with([['foo']], default_options.merge(timeout: described_class::DEFAULT_SOFT_TIMEOUT_SECONDS))
cli.run(%w(foo))
end
end
context 'queue namespace expansion' do
it 'starts Sidekiq workers for all queues in all_queues.yml with a namespace in argv' do
expect(Gitlab::SidekiqConfig::CliMethods).to receive(:worker_queues).and_return(['cronjob:foo', 'cronjob:bar'])
expect(Gitlab::SidekiqCluster).to receive(:start)
.with([['cronjob', 'cronjob:foo', 'cronjob:bar']], default_options)
.and_return([])
cli.run(%w(cronjob))
end
end
context 'with --experimental-queue-selector' do
where do
{
'memory-bound queues' => {
query: 'resource_boundary=memory',
included_queues: %w(project_export),
excluded_queues: %w(merge)
},
'memory- or CPU-bound queues' => {
query: 'resource_boundary=memory,cpu',
included_queues: %w(auto_merge:auto_merge_process project_export),
excluded_queues: %w(merge)
},
'high urgency CI queues' => {
query: 'feature_category=continuous_integration&urgency=high',
included_queues: %w(pipeline_cache:expire_job_cache pipeline_cache:expire_pipeline_cache),
excluded_queues: %w(merge)
},
'CPU-bound high urgency CI queues' => {
query: 'feature_category=continuous_integration&urgency=high&resource_boundary=cpu',
included_queues: %w(pipeline_cache:expire_pipeline_cache),
excluded_queues: %w(pipeline_cache:expire_job_cache merge)
},
'CPU-bound high urgency non-CI queues' => {
query: 'feature_category!=continuous_integration&urgency=high&resource_boundary=cpu',
included_queues: %w(new_issue),
excluded_queues: %w(pipeline_cache:expire_pipeline_cache)
},
'CI and SCM queues' => {
query: 'feature_category=continuous_integration|feature_category=source_code_management',
included_queues: %w(pipeline_cache:expire_job_cache merge),
excluded_queues: %w(mailers)
}
}
end
with_them do
it 'expands queues by attributes' do
expect(Gitlab::SidekiqCluster).to receive(:start) do |queues, opts|
expect(opts).to eq(default_options)
expect(queues.first).to include(*included_queues)
expect(queues.first).not_to include(*excluded_queues)
[]
end
cli.run(%W(--experimental-queue-selector #{query}))
end
it 'works when negated' do
expect(Gitlab::SidekiqCluster).to receive(:start) do |queues, opts|
expect(opts).to eq(default_options)
expect(queues.first).not_to include(*included_queues)
expect(queues.first).to include(*excluded_queues)
[]
end
cli.run(%W(--negate --experimental-queue-selector #{query}))
end
end
it 'expands multiple queue groups correctly' do
expect(Gitlab::SidekiqCluster)
.to receive(:start)
.with([['chat_notification'], ['project_export']], default_options)
.and_return([])
cli.run(%w(--experimental-queue-selector feature_category=chatops&has_external_dependencies=true resource_boundary=memory&feature_category=importers))
end
it 'allows the special * selector' do
worker_queues = %w(foo bar baz)
expect(Gitlab::SidekiqConfig::CliMethods)
.to receive(:worker_queues).and_return(worker_queues)
expect(Gitlab::SidekiqCluster)
.to receive(:start).with([worker_queues], default_options)
cli.run(%w(--experimental-queue-selector *))
end
it 'errors when the selector matches no queues' do
expect(Gitlab::SidekiqCluster).not_to receive(:start)
expect { cli.run(%w(--experimental-queue-selector has_external_dependencies=true&has_external_dependencies=false)) }
.to raise_error(described_class::CommandError)
end
it 'errors on an invalid query multiple queue groups correctly' do
expect(Gitlab::SidekiqCluster).not_to receive(:start)
expect { cli.run(%w(--experimental-queue-selector unknown_field=chatops)) }
.to raise_error(Gitlab::SidekiqConfig::CliMethods::QueryError)
end
end
end
end
describe '#write_pid' do
context 'when a PID is specified' do
it 'writes the PID to a file' do
expect(Gitlab::SidekiqCluster).to receive(:write_pid).with('/dev/null')
cli.option_parser.parse!(%w(-P /dev/null))
cli.write_pid
end
end
context 'when no PID is specified' do
it 'does not write a PID' do
expect(Gitlab::SidekiqCluster).not_to receive(:write_pid)
cli.write_pid
end
end
end
describe '#wait_for_termination' do
it 'waits for termination of all sub-processes and succeeds after 3 checks' do
expect(Gitlab::SidekiqCluster).to receive(:any_alive?)
.with(an_instance_of(Array)).and_return(true, true, true, false)
expect(Gitlab::SidekiqCluster).to receive(:pids_alive)
.with([]).and_return([])
expect(Gitlab::SidekiqCluster).to receive(:signal_processes)
.with([], "-KILL")
stub_const("Gitlab::SidekiqCluster::CLI::CHECK_TERMINATE_INTERVAL_SECONDS", 0.1)
allow(cli).to receive(:terminate_timeout_seconds) { 1 }
cli.wait_for_termination
end
context 'with hanging workers' do
before do
expect(cli).to receive(:write_pid)
expect(cli).to receive(:trap_signals)
expect(cli).to receive(:start_loop)
end
it 'hard kills workers after timeout expires' do
worker_pids = [101, 102, 103]
expect(Gitlab::SidekiqCluster).to receive(:start)
.with([['foo']], default_options)
.and_return(worker_pids)
expect(Gitlab::SidekiqCluster).to receive(:any_alive?)
.with(worker_pids).and_return(true).at_least(10).times
expect(Gitlab::SidekiqCluster).to receive(:pids_alive)
.with(worker_pids).and_return([102])
expect(Gitlab::SidekiqCluster).to receive(:signal_processes)
.with([102], "-KILL")
cli.run(%w(foo))
stub_const("Gitlab::SidekiqCluster::CLI::CHECK_TERMINATE_INTERVAL_SECONDS", 0.1)
allow(cli).to receive(:terminate_timeout_seconds) { 1 }
cli.wait_for_termination
end
end
end
describe '#trap_signals' do
it 'traps the termination and forwarding signals' do
expect(Gitlab::SidekiqCluster).to receive(:trap_terminate)
expect(Gitlab::SidekiqCluster).to receive(:trap_forward)
cli.trap_signals
end
end
describe '#start_loop' do
it 'runs until one of the processes has been terminated' do
allow(cli).to receive(:sleep).with(a_kind_of(Numeric))
expect(Gitlab::SidekiqCluster).to receive(:all_alive?)
.with(an_instance_of(Array)).and_return(false)
expect(Gitlab::SidekiqCluster).to receive(:signal_processes)
.with(an_instance_of(Array), :TERM)
cli.start_loop
end
end
end