Class: Central::Cli::Apps::DockerComposeGenerator

Inherits:
Object
  • Object
show all
Includes:
Common
Defined in:
lib/central/cli/apps/docker_compose_generator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Common

#app_json, #create_yml, #current_dir, #extend_env_vars, #extend_options, #extend_secrets, #load_services, #normalize_env_vars, #parse_services, #prefixed_name, #require_config_file, #service_exists?, #token, #valid_addons

Methods included from Services::ServicesHelper

#create_service, #delete_service, #deploy_service, #get_service, #int_to_filesize, #parse_image, #parse_links, #parse_log_opts, #parse_memory, #parse_ports, #parse_relative_time, #parse_secrets, #parse_service_id, #restart_service, #scale_service, #show_service, #start_service, #stop_service, #update_service, #wait_for_deploy_to_finish

Methods included from Common

#access_token=, #add_master, #api_url, #api_url=, #clear_current_stack, #client, #current_master, #current_master=, #current_master_index, #current_stack, #current_stack=, #ensure_custom_ssl_ca, #require_api_url, #require_current_stack, #require_token, #reset_client, #save_settings, #settings, #settings_filename

Constructor Details

#initialize(filename) ⇒ DockerComposeGenerator

Returns a new instance of DockerComposeGenerator.



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# File 'lib/central/cli/apps/docker_compose_generator.rb', line 10

def initialize(filename)
  @docker_compose_file = filename
end

Instance Attribute Details

#docker_compose_file ⇒ Object (readonly)

Returns the value of attribute docker_compose_file.



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# File 'lib/central/cli/apps/docker_compose_generator.rb', line 8

def docker_compose_file
  @docker_compose_file
end

Instance Method Details

#generate(procfile, addons, env_file) ⇒ Object 



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# File 'lib/central/cli/apps/docker_compose_generator.rb', line 14

def generate(procfile, addons, env_file)
  if procfile.keys.size > 0
    # generate services found in Procfile
    docker_compose = {}
    procfile.keys.each do |service|
      docker_compose[service] = { 'build' => '.' }
      if app_json && service == 'web' # Heroku generates PORT env variable so should we do too
        docker_compose[service]['environment'] = ['PORT=5000']
        docker_compose[service]['ports'] = ['5000:5000']
      end
      docker_compose[service]['command'] = "/start #{service}" if service != 'web'
      docker_compose[service]['env_file'] = env_file if env_file

      # generate addon services
      addons.each do |addon|
        addon_service = addon.split(':')[0]
        addon_service.slice!('heroku-')
        next unless valid_addons.key?(addon_service)
        docker_compose[service]['links'] = [] unless docker_compose[service]['links']
        docker_compose[service]['links'] << "#{addon_service}:#{addon_service}"
        docker_compose[service]['environment'] = [] unless docker_compose[service]['environment']
        docker_compose[service]['environment'] += valid_addons[addon_service]['environment']
        docker_compose[addon_service] = { 'image' => valid_addons[addon_service]['image'] }
      end
    end
  else
    # no Procfile found, create dummy web service
    docker_compose = { 'web' => { 'build' => '.' } }
    docker_compose['web']['env_file'] = env_file if env_file
  end
  # create docker-compose.yml file
  create_yml(docker_compose, docker_compose_file)
end