Class: Minke::Tasks::Task

Inherits:
Object
  • Object
show all
Defined in:
lib/minke/tasks/task.rb

Overview

Task is a base implementation of a rake task such as fetch, build, etc

Direct Known Subclasses

Build, BuildImage, Cucumber, Fetch, Push, Run, Test

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Task

Returns a new instance of Task.



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# File 'lib/minke/tasks/task.rb', line 7

def initialize args
  @config                 = args[:config]
  @task_name              = args[:task_name]
  @docker_runner          = args[:docker_runner]
  @task_runner            = args[:task_runner]
  @shell_helper           = args[:shell_helper]
  @logger                 = args[:logger_helper]
  @generator_config       = args[:generator_config]
  @docker_compose_factory = args[:docker_compose_factory]
  @consul                 = args[:consul]
  @docker_network         = args[:docker_network]
  @health_check           = args[:health_check]
  @service_discovery      = args[:service_discovery]
  @task_settings          = @config.send(@task_name)
end

Instance Method Details

#create_container_image ⇒ Object

Pulls the build image for the container from the registry if one is supplied, if a build file is specified an image is built.



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# File 'lib/minke/tasks/task.rb', line 82

def create_container_image
  build_image = @generator_config.build_settings.docker_settings.image
  build_image = @config.build_image_for(@task_name) unless @config.build_image_for(@task_name) == nil

  build_file = @config.build_docker_file_for(@task_name)

  if build_file != nil
    build_image = "#{@config.application_name}-buildimage"
    
    @logger.debug "Building image: #{build_image} from file #{build_file}"
    @docker_runner.build_image build_file, build_image
  else
    @logger.debug "Pulling image: #{build_image}"
    @docker_runner.pull_image build_image unless @docker_runner.find_image build_image
  end

  build_image
end

#run_command_in_container(command) ⇒ Object

runs the given command in a docker container



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# File 'lib/minke/tasks/task.rb', line 56

def run_command_in_container command
  begin
    @logger.info "Running command: #{command}"

    settings = @generator_config.build_settings.docker_settings
    build_image = create_container_image

    args = {
      :image             => build_image,
      :command           => command,
      :volumes           => settings.binds,
      :environment       => settings.env,
      :working_directory => settings.working_directory
    }
    container, success = @docker_runner.create_and_run_container args

    # throw exception if failed
    raise "Unable to run command #{command}" unless success
  ensure
    @docker_runner.delete_container container
  end
end

#run_with_block ⇒ Object

run_with_config executes the task steps for the given

  • block containing custom actions



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# File 'lib/minke/tasks/task.rb', line 26

def run_with_block
  success = true

  begin
    @docker_network.create
    @consul.start_and_load_data @task_settings.consul_loader unless @task_settings.consul_loader == nil
    @task_runner.run_steps(@task_settings.pre) unless @task_settings == nil || @task_settings.pre == nil

    yield if block_given?

    @task_runner.run_steps(@task_settings.post) unless @task_settings == nil || @task_settings.post == nil
  rescue Exception => e
    @logger.error e.message
    success = false
  ensure
    @consul.stop unless @task_settings.consul_loader == nil
    begin
      @docker_network.remove
    rescue Exception => e
      # Trap removing a network as minke may have been called with an existing network and containers
      # may still be attached.
      @logger.error e.message
    end
  end

  abort unless success
end