lib/vagrant-proxyconf/cap/coreos/docker_proxy_conf.rb
require_relative '../util'
module VagrantPlugins
module ProxyConf
module Cap
module CoreOS
# Capability for docker proxy configuration
module DockerProxyConf
# @return [String, false] the path to docker or `false` if not found
def self.docker_proxy_conf(machine)
return false unless Util.which(machine, 'docker')
machine.communicate.tap do |comm|
src_file = '/usr/lib/systemd/system/docker.service'
dst_file = '/etc/systemd/system/docker.service'
tmp_file = '/tmp/docker.service'
env_file = 'EnvironmentFile=-\/etc\/default\/docker'
comm.sudo("sed -e 's/\\[Service\\]/[Service]\\n#{env_file}/g' #{src_file} > #{tmp_file}")
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
'/etc/default/docker'
end
end
end
end
end
end