Class: DockerComposeConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/docker_compose_config.rb

Overview

Support multiple versions for docker-compose configs.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filepath) ⇒ DockerComposeConfig

Returns a new instance of DockerComposeConfig.



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# File 'lib/docker_compose_config.rb', line 5

def initialize(filepath)
  parse_docker_compose_config(filepath)
end

Instance Attribute Details

#networks ⇒ Object (readonly)

Returns the value of attribute networks.



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# File 'lib/docker_compose_config.rb', line 3

def networks
  @networks
end

#services ⇒ Object (readonly)

Returns the value of attribute services.



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# File 'lib/docker_compose_config.rb', line 3

def services
  @services
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/docker_compose_config.rb', line 3

def version
  @version
end

#volumes ⇒ Object (readonly)

Returns the value of attribute volumes.



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# File 'lib/docker_compose_config.rb', line 3

def volumes
  @volumes
end

Instance Method Details

#parse_docker_compose_config(filepath) ⇒ Object

Parse the docker-compose config



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# File 'lib/docker_compose_config.rb', line 10

def parse_docker_compose_config(filepath)
  f = File.read(filepath)
  f = f.gsub(/\$([a-zA-Z_]+[a-zA-Z0-9_]*)|\$\{(.+)\}/) { ENV[$1 || $2] }

  config = YAML.load(f)

  unless config
    config = YAML.load('{}')
  end

  case (config['version'])
  when 2,'2'
    parse_version_2(config)
  else
    parse_version_1(config)
  end
end

#parse_version_1(config) ⇒ Object 



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# File 'lib/docker_compose_config.rb', line 35

def parse_version_1(config)
  @version = 1
  @services = config
  @volumes = nil
  @networks = nil
end

#parse_version_2(config) ⇒ Object 



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# File 'lib/docker_compose_config.rb', line 28

def parse_version_2(config)
  @version = 2
  @services = config['services']
  @volumes = config['volumes']
  @networks = config['networks']
end