vagrant/plugins/providers/docker/config.rb

361 lines
12 KiB
Ruby

require "pathname"
require_relative "../../../lib/vagrant/util/platform"
module VagrantPlugins
module DockerProvider
class Config < Vagrant.plugin("2", :config)
attr_accessor :image, :cmd, :ports, :volumes, :privileged
# Additional arguments to pass to `docker build` when creating
# an image using the build dir setting.
#
# @return [Array<String>]
attr_accessor :build_args
# The directory with a Dockerfile to build and use as the basis
# for this container. If this is set, neither "image" nor "git_repo"
# should be set.
#
# @return [String]
attr_accessor :build_dir
# The URL for a git repository with a Dockerfile to build and use
# as the basis for this container. If this is set, neither "image"
# nor "build_dir" should be set.
#
# @return [String]
attr_accessor :git_repo
# Use docker-compose to manage the lifecycle and environment for
# containers instead of using docker directly.
#
# @return [Boolean]
attr_accessor :compose
# Configuration Hash used for build the docker-compose composition
# file. This can be used for adding networks or volumes.
#
# @return [Hash]
attr_accessor :compose_configuration
# An optional file name of a Dockerfile to be used when building
# the image. This requires Docker >1.5.0.
#
# @return [String]
attr_accessor :dockerfile
# Additional arguments to pass to `docker run` when creating
# the container for the first time. This is an array of args.
#
# @return [Array<String>]
attr_accessor :create_args
# Environmental variables to set in the container.
#
# @return [Hash]
attr_accessor :env
# Ports to expose from the container but not to the host machine.
# This is useful for links.
#
# @return [Array<Integer>]
attr_accessor :expose
# Force using a proxy VM, even on Linux hosts.
#
# @return [Boolean]
attr_accessor :force_host_vm
# True if the Docker container exposes SSH access. If this is true,
# then Vagrant can do a bunch more things like setting the hostname,
# provisioning, etc.
attr_accessor :has_ssh
# Options for the build dir synced folder if a host VM is in use.
#
# @return [Hash]
attr_accessor :host_vm_build_dir_options
# The name for the container. This must be unique for all containers
# on the proxy machine if it is made.
#
# @return [String]
attr_accessor :name
# If true, the image will be pulled on every `up` and `reload`
# to ensure the latest image.
#
# @return [Bool]
attr_accessor :pull
# True if the docker container is meant to stay in the "running"
# state (is a long running process). By default this is true.
#
# @return [Boolean]
attr_accessor :remains_running
# The time to wait before sending a SIGTERM to the container
# when it is stopped.
#
# @return [Integer]
attr_accessor :stop_timeout
# The name of the machine in the Vagrantfile set with
# "vagrant_vagrantfile" that will be the docker host. Defaults
# to "default"
#
# See the "vagrant_vagrantfile" docs for more info.
#
# @return [String]
attr_accessor :vagrant_machine
# The path to the Vagrantfile that contains a VM that will be
# started as the Docker host if needed (Windows, OS X, Linux
# without container support).
#
# Defaults to a built-in Vagrantfile that will load boot2docker.
#
# NOTE: This only has an effect if Vagrant needs a Docker host.
# Vagrant determines this automatically based on the environment
# it is running in.
#
# @return [String]
attr_accessor :vagrant_vagrantfile
#--------------------------------------------------------------
# Auth Settings
#--------------------------------------------------------------
# Server to authenticate to. If blank, will use the default
# Docker authentication endpoint (which is the Docker Hub at the
# time of this comment).
#
# @return [String]
attr_accessor :auth_server
# Email for logging in to a remote Docker server.
#
# @return [String]
attr_accessor :email
# Email for logging in to a remote Docker server.
#
# @return [String]
attr_accessor :username
# Password for logging in to a remote Docker server. If this is
# not blank, then Vagrant will run `docker login` prior to any
# Docker runs.
#
# The presence of auth will also force the Docker environments to
# serialize on `up` so that different users/passwords don't overlap.
#
# @return [String]
attr_accessor :password
def initialize
@build_args = []
@build_dir = UNSET_VALUE
@git_repo = UNSET_VALUE
@cmd = UNSET_VALUE
@compose = UNSET_VALUE
@compose_configuration = {}
@create_args = UNSET_VALUE
@dockerfile = UNSET_VALUE
@env = {}
@expose = []
@force_host_vm = UNSET_VALUE
@has_ssh = UNSET_VALUE
@host_vm_build_dir_options = UNSET_VALUE
@image = UNSET_VALUE
@name = UNSET_VALUE
@links = []
@pull = UNSET_VALUE
@ports = UNSET_VALUE
@privileged = UNSET_VALUE
@remains_running = UNSET_VALUE
@stop_timeout = UNSET_VALUE
@volumes = []
@vagrant_machine = UNSET_VALUE
@vagrant_vagrantfile = UNSET_VALUE
@auth_server = UNSET_VALUE
@email = UNSET_VALUE
@username = UNSET_VALUE
@password = UNSET_VALUE
end
def link(name)
@links << name
end
def merge(other)
super.tap do |result|
# This is a bit confusing. The tests explain the purpose of this
# better than the code lets on, I believe.
has_image = (other.image != UNSET_VALUE)
has_build_dir = (other.build_dir != UNSET_VALUE)
has_git_repo = (other.git_repo != UNSET_VALUE)
if (has_image ^ has_build_dir ^ has_git_repo) && !(has_image && has_build_dir && has_git_repo)
# image
if has_image
if @build_dir != UNSET_VALUE
result.build_dir = nil
end
if @git_repo != UNSET_VALUE
result.git_repo = nil
end
end
# build_dir
if has_build_dir
if @image != UNSET_VALUE
result.image = nil
end
if @git_repo != UNSET_VALUE
result.git_repo = nil
end
end
# git_repo
if has_git_repo
if @build_dir != UNSET_VALUE
result.build_dir = nil
end
if @image != UNSET_VALUE
result.image = nil
end
end
end
env = {}
env.merge!(@env) if @env
env.merge!(other.env) if other.env
result.env = env
expose = self.expose.dup
expose += other.expose
result.instance_variable_set(:@expose, expose)
links = _links.dup
links += other._links
result.instance_variable_set(:@links, links)
end
end
def finalize!
@build_args = [] if @build_args == UNSET_VALUE
@build_dir = nil if @build_dir == UNSET_VALUE
@git_repo = nil if @git_repo == UNSET_VALUE
@cmd = [] if @cmd == UNSET_VALUE
@compose = false if @compose == UNSET_VALUE
@create_args = [] if @create_args == UNSET_VALUE
@dockerfile = nil if @dockerfile == UNSET_VALUE
@env ||= {}
@has_ssh = false if @has_ssh == UNSET_VALUE
@image = nil if @image == UNSET_VALUE
@name = nil if @name == UNSET_VALUE
@pull = false if @pull == UNSET_VALUE
@ports = [] if @ports == UNSET_VALUE
@privileged = false if @privileged == UNSET_VALUE
@remains_running = true if @remains_running == UNSET_VALUE
@stop_timeout = 1 if @stop_timeout == UNSET_VALUE
@vagrant_machine = nil if @vagrant_machine == UNSET_VALUE
@vagrant_vagrantfile = nil if @vagrant_vagrantfile == UNSET_VALUE
@auth_server = nil if @auth_server == UNSET_VALUE
@email = "" if @email == UNSET_VALUE
@username = "" if @username == UNSET_VALUE
@password = "" if @password == UNSET_VALUE
if @host_vm_build_dir_options == UNSET_VALUE
@host_vm_build_dir_options = nil
end
# On non-linux platforms (where there is no native docker), force the
# host VM. Other users can optionally disable this by setting the
# value explicitly to false in their Vagrantfile.
if @force_host_vm == UNSET_VALUE
@force_host_vm = !Vagrant::Util::Platform.linux? &&
!Vagrant::Util::Platform.darwin? &&
!Vagrant::Util::Platform.windows?
end
# The machine name must be a symbol
@vagrant_machine = @vagrant_machine.to_sym if @vagrant_machine
@expose.uniq!
if @compose_configuration.is_a?(Hash)
# Ensures configuration is using basic types
@compose_configuration = JSON.parse(@compose_configuration.to_json)
end
end
def validate(machine)
errors = _detected_errors
# FIXME: is there a more ruby-elegant way to write this?
if (@build_dir? 1 : 0) + (@git_repo? 1 : 0) + (@image? 1 : 0) > 1
errors << I18n.t("docker_provider.errors.config.both_build_and_image")
end
if !@build_dir && !@git_repo && !@image
errors << I18n.t("docker_provider.errors.config.build_dir_or_image")
end
if @build_dir
build_dir_pn = Pathname.new(@build_dir)
if !build_dir_pn.directory?
errors << I18n.t("docker_provider.errors.config.build_dir_invalid")
end
end
# Comparison logic taken directly from docker's urlutil.go
if @git_repo && !( @git_repo =~ /^http(?:s)?:\/\/.*.git(?:#.+)?$/ || @git_repo =~ /^git(?:hub\.com|@|:\/\/)/)
errors << I18n.t("docker_provider.errors.config.git_repo_invalid")
end
if !@compose_configuration.is_a?(Hash)
errors << I18n.t("docker_provider.errors.config.compose_configuration_hash")
end
if @compose && @force_host_vm
errors << I18n.t("docker_provider.errors.config.compose_force_vm")
end
if !@create_args.is_a?(Array)
errors << I18n.t("docker_provider.errors.config.create_args_array")
end
@links.each do |link|
parts = link.split(":")
if parts.length != 2 || parts[0] == "" || parts[1] == ""
errors << I18n.t(
"docker_provider.errors.config.invalid_link", link: link)
end
end
if @vagrant_vagrantfile
vf_pn = Pathname.new(@vagrant_vagrantfile)
if !vf_pn.file?
errors << I18n.t("docker_provider.errors.config.invalid_vagrantfile")
end
end
{ "docker provider" => errors }
end
#--------------------------------------------------------------
# Functions below should not be called by config files
#--------------------------------------------------------------
def _links
@links
end
end
end
end