Module: VagrantPlugins::ProxyConf::Cap::Debian::DockerProxyConf

Defined in:
lib/vagrant-proxyconf/cap/debian/docker_proxy_conf.rb

Overview

Capability for docker proxy configuration

Constant Summary collapse

CONFIG_DIR = 
'/etc/default/'

Class Method Summary collapse

Class Method Details

.docker_proxy_conf(machine) ⇒ String, false

Returns the path to docker or ‘false` if not found.

Returns:

  • (String, false) —

    the path to docker or ‘false` if not found



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# File 'lib/vagrant-proxyconf/cap/debian/docker_proxy_conf.rb', line 12

def self.docker_proxy_conf(machine)
  docker_command = find_docker_command(machine)
  return false if docker_command.nil?

  config_path = CONFIG_DIR + docker_command
  return config_path unless Util.which(machine, 'systemctl')

  machine.communicate.tap do |comm|
    src_file = "/lib/systemd/system/#{docker_command}.service"
    dst_file = "/etc/systemd/system/#{docker_command}.service"
    tmp_file = "/tmp/#{docker_command}.service"
    env_file = "EnvironmentFile=-\\/etc\\/default\\/#{docker_command}"
    if comm.test("grep -q -e '#{env_file}' #{src_file}")
      comm.sudo("cp -p #{src_file} #{tmp_file}")
    else
      comm.sudo("sed -e 's/\\[Service\\]/[Service]\\n#{env_file}/g' #{src_file} > #{tmp_file}")
    end
    unless comm.test("diff #{tmp_file} #{dst_file}")
      # update config and restart docker when config changed
      comm.sudo("mv -f #{tmp_file} #{dst_file}")
      comm.sudo('systemctl daemon-reload')
    end
    comm.sudo("rm -f #{tmp_file}")
  end
  config_path
end