Class: Centurion::DockerServer

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Logging
Defined in:
lib/centurion/docker_server.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Logging

#debug, #error, #info, #warn

Constructor Details

#initialize(host, docker_path, tls_params = {}) ⇒ DockerServer

Returns a new instance of DockerServer.



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# File 'lib/centurion/docker_server.rb', line 21

def initialize(host, docker_path, tls_params = {})
  @docker_path = docker_path
  @hostname, @port = host.split(':')
  @port ||= '2375'
  @tls_params = tls_params
end

Instance Attribute Details

#hostname ⇒ Object (readonly)

Returns the value of attribute hostname.



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# File 'lib/centurion/docker_server.rb', line 14

def hostname
  @hostname
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



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# File 'lib/centurion/docker_server.rb', line 14

def port
  @port
end

Instance Method Details

#current_tags_for(image) ⇒ Object 



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# File 'lib/centurion/docker_server.rb', line 28

def current_tags_for(image)
  running_containers = ps.select { |c| c['Image'] =~ /#{image}/ }
  return [] if running_containers.empty?

  parse_image_tags_for(running_containers)
end

#find_container_by_id(container_id) ⇒ Object 



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# File 'lib/centurion/docker_server.rb', line 53

def find_container_by_id(container_id)
  ps.find { |container| container && container['Id'] == container_id }
end

#find_containers_by_name(wanted_name) ⇒ Object 



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# File 'lib/centurion/docker_server.rb', line 44

def find_containers_by_name(wanted_name)
  ps.select do |container|
    next unless container && container['Names']
    container['Names'].find do |name|
      name =~ /\A\/#{wanted_name}(-[a-f0-9]{14})?\Z/
    end
  end
end

#find_containers_by_public_port(public_port, type = 'tcp') ⇒ Object 



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# File 'lib/centurion/docker_server.rb', line 35

def find_containers_by_public_port(public_port, type='tcp')
  ps.select do |container|
    next unless container && container['Ports']
    container['Ports'].find do |port|
      port['PublicPort'] == public_port.to_i && port['Type'] == type
    end
  end
end

#old_containers_for_name(wanted_name) ⇒ Object 



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# File 'lib/centurion/docker_server.rb', line 57

def old_containers_for_name(wanted_name)
  find_containers_by_name(wanted_name).select do |container|
    container["Status"] =~ /^(Exit |Exited)/
  end
end