Giuseppe Lavagetto has submitted this change and it was merged. Change subject: docker: add package provider ......................................................................
docker: add package provider While most of our containers will be managed by kubernetes itself, a few will be managed by puppet itself; it is therefore convenient using the package abstraction to manage installation/upgrade of docker images. Change-Id: I5a016874acb012b651617b03cfe3f09119f04d23 --- A modules/docker/lib/puppet/provider/package/docker.rb 1 file changed, 99 insertions(+), 0 deletions(-) Approvals: Giuseppe Lavagetto: Looks good to me, approved Alexandros Kosiaris: Looks good to me, but someone else must approve jenkins-bot: Verified diff --git a/modules/docker/lib/puppet/provider/package/docker.rb b/modules/docker/lib/puppet/provider/package/docker.rb new file mode 100644 index 0000000..70bc545 --- /dev/null +++ b/modules/docker/lib/puppet/provider/package/docker.rb @@ -0,0 +1,99 @@ +# Puppet package provider for `docker`. +# +# Copyright 2016 Giuseppe Lavagetto, Wikimedia Foundation +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +require 'puppet/provider/package' + +Puppet::Type.type(:package).provide( + :docker, :parent => Puppet::Provider::Package) do + + desc 'Puppet package provider for docker.' + + has_feature :installable, :uninstallable, :versionable, :upgradeable + + commands :docker => '/usr/bin/docker' + + DOCKER_IMAGES_FORMAT_STRING = "{{.Repository}}\t{{.Tag}}\t{{.ID}}" + + def self.instances + packages = [] + docker('images', '--format', DOCKER_IMAGES_FORMAT_STRING).split("\n").each do |line| + repo, tag, _ = line.split "\t" + package = {:ensure => tag, :name => repo, + :provider => :docker} + packages << new(package) + end + + packages + end + + def installed_versions + docker('images', '--format', '{{.Tag}}', resource[:name]).split("\n") + end + + def required_version + should = resource[:ensure] + case should + when true, false, Symbol + "#{resource[:name]}:latest" + else + "#{resource[:name]}:#{should}" + end + end + + def install + docker('pull', required_version) + installed_versions.each do |version| + tag = "#{resource[:name]}:#{version}" + next if tag == required_version + begin + docker('rmi', tag) + rescue Puppet::ExecutionFailure + Puppet.warning("Not removing image #{tag} as it is currently in use.") + end + end + end + + def uninstall + installed_versions.each do |version| + docker('rmi', "#{resource[:name]}:#{version}") + end + end + + def update + install + end + + def query + result = { :ensure => :absent, :name => resource[:name] } + versions = installed_versions + + unless versions.empty? + if versions.include?('latest') + result[:ensure] = 'latest' + else + result[:ensure] = versions.sort{ |x, y| Gem::Version.new(x) <=> Gem::Version.new(y) }.pop + end + end + + result + end + + # Ok this is dumb. But, it should do what people would expect when writing + # ensure => latest + def latest + 'latest' + end +end -- To view, visit https://gerrit.wikimedia.org/r/323815 To unsubscribe, visit https://gerrit.wikimedia.org/r/settings Gerrit-MessageType: merged Gerrit-Change-Id: I5a016874acb012b651617b03cfe3f09119f04d23 Gerrit-PatchSet: 3 Gerrit-Project: operations/puppet Gerrit-Branch: production Gerrit-Owner: Giuseppe Lavagetto <glavage...@wikimedia.org> Gerrit-Reviewer: Alexandros Kosiaris <akosia...@wikimedia.org> Gerrit-Reviewer: Giuseppe Lavagetto <glavage...@wikimedia.org> Gerrit-Reviewer: jenkins-bot <> _______________________________________________ MediaWiki-commits mailing list MediaWiki-commits@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/mediawiki-commits
