Class: Brut::CLI::Apps::Deploy::DockerCompose::Check

Inherits:

Commands::BaseCommand

• Object
• Commands::BaseCommand
• Brut::CLI::Apps::Deploy::DockerCompose::Check

Defined in:

lib/brut/cli/apps/deploy.rb

Instance Attribute Summary

Attributes inherited from Commands::BaseCommand

#parent_command

Instance Method Summary

• #default_rack_env ⇒ Object
• #description ⇒ Object
• #run ⇒ Object

Methods inherited from Commands::BaseCommand

#accepts, #args_description, #argv, #bootstrap?, #commands, #delegate_to_command, #detailed_description, #env, #env_vars, #execute, #name, #options, #opts, #print, #puts, #stdin, #system!, #theme

Instance Method Details

#default_rack_env ⇒ Object

# File 'lib/brut/cli/apps/deploy.rb', line 178

def default_rack_env = "development"

#description ⇒ Object

# File 'lib/brut/cli/apps/deploy.rb', line 177

def description = "Check if the existing docker-compose.yml is consistent with the deploy config"

#run ⇒ Object

# File 'lib/brut/cli/apps/deploy.rb', line 179

def run
  docker_compose_path = Brut.container.project_root / "deploy" / "docker-compose.yml"
  if !docker_compose_path.exist?
    fatal "Could not find #{docker_compose_path}"
    return 1
  end
  deploy_config_path = Brut.container.project_root / "deploy" / "deploy_config.rb"
  begin
    require deploy_config_path
    if !defined?(AppDeployConfig)
      fatal "#{deploy_config_path} must define the class AppDeployConfig"
      return 1
    end
    if !AppDeployConfig.ancestors.include?(Brut::CLI::Apps::Deploy::DeployConfig)
      fatal "#{deploy_config_path} must define a subclass of Brut::CLI::Apps::Deploy::DeployConfig"
      return 1
    end
    config = AppDeployConfig.new
    docker_compose_contents = YAML.load(File.read(docker_compose_path))
    missing = []
    extra   = []
    wrong   = {}
    failed  = false
    configured_services = []
    expected_image_name = "#{Brut.container.app_organization}/#{Brut.container.app_id}:${DOCKER_IMAGE_TAG}"
    if config.registry_hostname
      expected_image_name = "#{config.registry_hostname}/#{expected_image_name}"
    end
    config.processes.each do |process_description|
      configured_services << process_description.name
      service = docker_compose_contents["services"][process_description.name]
      if service
        image = service["image"]
        cmd   = service["command"]
        if image != expected_image_name
          wrong[process_description] ||= {}
          wrong[process_description][:image] = {
            expected: expected_image_name,
            actual: image
          }
          failed = true
        end
        if cmd != process_description.cmd
          wrong[process_description] ||= {}
          wrong[process_description][:command] = {
            expected: process_description.cmd,
            actual: cmd
          }
          failed = true
        end
      else
        missing << process_description
        failed = true
      end
    end
    docker_compose_contents["services"].each do |service_name,configuration|
      if !configured_services.include?(service_name)
        extra << service_name
        failed = true
      end
    end
    if failed
      missing.each do |process_description|
        fatal "service #{process_description.name}: MISSING"
      end
      wrong.each do |process_description, problems|
        problems.each do |key,expected_actual|
          fatal "service #{process_description.name}: #{key} incorrect. Expected '#{expected_actual[:expected]}', but got '#{expected_actual[:actual]}'"
        end
      end
      extra.each do |service_name|
        fatal "service #{service_name}: not in deploy config"
      end
      return 1
    end
    0
  rescue LoadError => ex
    fatal "Could not find #{deploy_config_path}: #{ex}"
    1
  end
end