lib/vagrant-proxyconf/cap/debian/docker_proxy_conf.rb
require_relative '../util'
module VagrantPlugins
module ProxyConf
module Cap
module Debian
# Capability for docker proxy configuration
module DockerProxyConf
CONFIG_DIR = '/etc/default/'
# @return [String, false] the path to docker or `false` if not found
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
private
def self.find_docker_command(machine)
return 'docker' if Util.which(machine, 'docker')
return 'docker.io' if Util.which(machine, 'docker.io')
nil
end
end
end
end
end
end