canvas-lms/build/dockerfile_writer.rb

75 lines
2.0 KiB
Ruby
Executable File

#!/usr/bin/env ruby
#
# Copyright (C) 2017 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
require "erubi"
require_relative "./docker_utils"
class DockerfileWriter
attr_reader :env, :compose_files
def initialize(env:, compose_files:)
@env = env
@compose_files = compose_files
end
def production?
env == "production"
end
def development?
env == "development"
end
def generation_message
<<~STR
# GENERATED FILE, DO NOT MODIFY!
# To update this file please edit the relevant template and run the generation
# task `build/dockerfile_writer.rb`
STR
end
def run(filename)
File.open(filename, "w") do |f|
f.write eval(Erubi::Engine.new(File.read("build/Dockerfile.template")).src, nil, "build/Dockerfile.template")
end
end
def docker_compose_volume_paths
paths = (docker_compose_config["services"]["web"]["volumes"] || []).map do |volume|
name, path = volume.split(":")
next unless name =~ /\A[a-z]/
path.sub("/usr/src/app/", "")
end.compact
paths.sort_by { |path| [path[0] == "/" ? 1 : 0, path]}
end
def docker_compose_config
DockerUtils.compose_config(*compose_files)
end
end
DockerfileWriter.new(
env: "development",
compose_files: ["docker-compose.yml", "docker-compose.override.yml"]
).run("Dockerfile")
DockerfileWriter.new(
env: "production",
compose_files: ["docker-compose.yml"]
).run("Dockerfile-production")