inspec/test/docker.rb
Dominik Richter 9de015ae2d improvement: simplify runner configuration
Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
2015-09-22 02:27:02 +02:00

108 lines
2.6 KiB
Ruby

# encoding: utf-8
require 'docker'
require 'yaml'
require 'concurrent'
require_relative '../lib/vulcano'
tests = ARGV
if tests.empty?
puts 'Nothing to do.'
exit 0
end
class DockerTester
def initialize(tests)
@tests = tests
@images = docker_images_by_tag
@conf = tests_conf
end
def run
puts ['Running tests:', @tests].flatten.join("\n- ")
puts ''
conf = RSpec.configuration
reporter = conf.reporter
promises = nil
# start reporting loop
reporter.report(0) do |report|
# test all images
promises = @conf['images'].map do |name|
run_on_target(name, report, conf)
end
# wait for all tests to be finished
sleep(0.1) until promises.all?(&:fulfilled?)
end
# check if we were successful
failures = promises.map(&:value).find_all { |x| x!=0 }
failures.empty? or fail 'Test failures'
end
def run_on_target(name, report, conf)
pr = Concurrent::Promise.new {
container = prepare_container(name)
status = test_container(container, report)
stop_container(container)
# Report either 0 for all ok or an exit code
status.all? ? 0 : conf.failure_exit_code
}.execute
pr.rescue do |err|
puts err.message
puts err.backtrace.join("\n")
conf.failure_exit_code
end
end
def docker_images_by_tag
# get all docker image tags
images = {}
Docker::Image.all.map do |img|
Array(img.info['RepoTags']).each do |tag|
images[tag] = img
end
end
images
end
def tests_conf
# get the test configuration
conf_path = File.join(File.dirname(__FILE__), '..', '.tests.yaml')
fail "Can't find tests config in #{conf_path}" unless File.file?(conf_path)
YAML.load(File.read(conf_path))
end
def test_container(container, report)
puts "--> run test on docker #{container.id}"
opts = { 'target' => "docker://#{container.id}" }
runner = Vulcano::Runner.new(opts)
runner.add_tests(@tests)
tests = runner.tests.ordered_example_groups
tests.map { |g| g.run(report) }
end
def prepare_container(name)
dname = "docker-#{name}:latest"
image = @images[dname]
fail "Can't find docker image #{dname}" if image.nil?
puts "--> start docker #{name}"
container = Docker::Container.create(
'Cmd' => ['/bin/bash'],
'Image' => image.id,
'OpenStdin' => true,
)
container.start
container
end
def stop_container(container)
puts "--> killrm docker #{container.id}"
container.kill
container.delete(force: true)
end
end
DockerTester.new(tests).run