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Supermarket Belongs to the Community

Supermarket belongs to the community. While Chef has the responsibility to keep it running and be stewards of its functionality, what it does and how it works is driven by the community. The chef/supermarket repository will continue to be where development of the Supermarket application takes place. Come be part of shaping the direction of Supermarket by opening issues and pull requests or by joining us on the Chef Mailing List.

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artifact (44) Versions 1.5.0

Provides your cookbooks with the Artifact Deploy LWRP

Policyfile
Berkshelf
Knife
cookbook 'artifact', '= 1.5.0', :supermarket
cookbook 'artifact', '= 1.5.0'
knife supermarket install artifact
knife supermarket download artifact
README
Dependencies
Quality -%

Artifact cookbook

Provides your cookbooks with the Artifact Deploy LWRP

Requirements

  • Chef 10
  • Vagrant

Platforms

  • CentOS
  • Fedora
  • Windows >= 6.0
    • Windows Vista
    • Windows 2008 R2
    • Windows 7

Vagrant

With Vagrant 1.1, there is no longer a Vagrant RubyGem to install. Instead, follow the instructions on the VagrantUp documentation pages.

Resources / Providers

artifact_deploy

Deploys a collection of build artifacts packaged into a tar ball. Artifacts are extracted from
the package and managed in a deploy directory in the same fashion you've seen in the Opscode
deploy resource or Capistrano's default deploy strategy.

Actions

Action Description Default
deploy Deploy the artifact package Yes
pre_seed Pre-seed the artifact package

Attributes

Attribute Description Type Default
artifact_name Name of the artifact package to deploy String name
artifact_location URL, local path, or Maven identifier of the artifact package to download String
artifact_checksum The SHA256 checksum of the artifact package that is being downloaded String
deploy_to Deploy directory where releases are stored and linked String
version Version of the artifact being deployed String
owner Owner of files created and modified String
group Group of files created and modified String
environment An environment hash used by resources within the provider Hash Hash.new
symlinks A hash that maps files in the shared directory to their paths in the current release Hash Hash.new
shared_directories Directories to be created in the shared folder Array %w{ log pids }
force Forcefully deploy an artifact even if the artifact has already been deployed Boolean false
should_migrate Notify the provider if it should perform application migrations Boolean false
keep Specify a number of artifacts deployments to keep on disk Integer 2
before_deploy A proc containing resources to be executed before the deploy process begins Proc
before_extract A proc containing resources to be executed before the artifact package is extracted Proc
after_extract A proc containing resources to be executed after the artifac package is extracted Proc
before_symlink A proc containing resources to be executed before the symlinks are created Proc
after_symlink A proc containing resources to be executed after the symlinks are created Proc
configure A proc containing resources to be executed to configure the artifact package Proc
before_migrate A proc containing resources to be executed before the migration Proc Proc
migrate A proc containing resources to be executed during the migration stage Proc
after_migrate A proc containing resources to be executed after the migration Proc Proc
restart A proc containing resources to be executed at the end of a successful deploy Proc
after_deploy A proc containing resources to be executed after the deploy process ends Proc
ssl_verify Used to set whether or not communications with a Nexus server should be SSL verified Boolean true
remove_top_level_directory Deletes a top level directory from the extracted zip file Boolean false

Deploy Flow, the Manifest, and Procs

The deploy flow is outlined in the Artifact Deploy flow chart below.

Artifact Deploy

For a more detailed flow of what happens when we check with deploy?, see the Manifest Differences Flow chart.

The 'happy-path' of this flow is the default path when an artifact has already been deploy - there will be no need to
execute many of the Procs. That being said, there are a few 'choice' paths through the flow where a Proc may affect the
flow.

There are two checks in the artifact deploy flow where a manifest check is executed - at the beginning, before the before_deploy proc,
and just after the configure proc (and after the migrate procs). When the latter check returns true, the restart proc will execute.

The manifest is a YAML file with a mapping of files in the deploy path to their SHA1 checksum. For example:

/srv/artifact_test/releases/2.0.68/log4j.xml: 96be5753fbf845e30b643fa04008f2c4fe6956a7
/srv/artifact_test/releases/2.0.68/readme.txt: fcb8d816b062565930f19f9bdb954f5ac43c5039
/srv/artifact_test/releases/2.0.68/my-artifact.jar: 42ad63cc883afad010573d3d8eea4e5a4011e5d4

There are numerous Procs placed throughout the flow of the artifact_deploy resource. They are meant to give the user many different
ways to configure the artifact and execute resources during the flow. Some good examples include executing a resource to stop a service
in the before_deploy proc, or placing configuration files in the deployed artifact during the configure proc.

Please note the before_deploy, configure, and after_deploy procs are executed on every Chef run. It is recommended that any template
(or configuration changing resource calls) take place within those procs. In particular, the configure proc was added for this very purpose. Following
this pattern will ensure that the templates will change, and the restart proc will execute (perhaps restarting the service the configured artifact provides
in order to pick up the configuration changes).

Procs can also utilize the internal methods of the provider class, because they are evaluated inside of the instance of the provider class. For example:

artifact_deploy "artifact_test" do
  # omitted for brevity
  configure Proc.new {
    # release_path is an attr_reader on the @release_path variable
    template "#{release_path}/conf/config.properties" do
      source "config.properties.erb"
      variables(:config => config)
    end
  }
end

Documentation

The RDocs for the deploy.rb provider can be found under the Top Level Namespace page
for this repository.

Nexus Usage

In order to deploy an artifact from a Nexus repository, you must first create
an encrypted data bag that contains
the credentials for your Nexus repository.

knife data bag create artifact nexus -c  --secret-file=

Your data bag should look like the following:

{
  "id": "nexus",
  "your_chef_environment": {
    "username": "nexus_user",
    "password": "nexus_user_password",
    "url": "http://nexus.yourcompany.com:8081/nexus/",
    "repository": "your_repository"
  }
}

After your encrypted data bag is setup you can use Maven identifiers
for your artifact_location. A Maven identifier is shown as a colon-separated string
that includes three elemens - groupId:artifactId:extension - ex. "com.my.artifact:my-artifact:tgz".
If many environments share the same configuration, you can use "*" as a wildcard environment name.

Examples

Deploying a Rails application
artifact_deploy "pvpnet" do
  version "1.0.0"
  artifact_location "https://artifacts.location.riotgames.com/pvpnet-1.0.0.tar.gz"
  deploy_to "/srv/pvpnet"
  owner "riot"
  group "riot"
  environment { 'RAILS_ENV' => 'production' }
  shared_directories %w{ data log pids system vendor_bundle assets }

  before_deploy Proc.new {
    bluepill_service 'pvpnet-unicorn' do
      action :stop
    end
  }

  before_migrate Proc.new {
    template "#{shared_path}/database.yml" do
      source "database.yml.erb"
      owner node[:merlin][:owner]
      group node[:merlin][:group]
      mode "0644"
      variables(
        :environment => environment,
        :options => database_options
      )
    end

    execute "bundle install --local --path=vendor/bundle --without test development cucumber --binstubs" do
      environment { 'RAILS_ENV' => 'production' }
      user "riot"
      group "riot"
    end
  }

  migrate Proc.new {
    execute "bundle exec rake db:migrate" do
      cwd release_path
      environment { 'RAILS_ENV' => 'production' }
      user "riot"
      group "riot"
    end
  }

  after_migrate Proc.new {
    ruby_block "remove_run_migrations" do
      block do
        Chef::Log.info("Migrations were run, removing role[pvpnet_run_migrations]")
        node.run_list.remove("role[pvpnet_run_migrations]")
      end
    end
  }

  configure Proc.new {
    template "/srv/pvpnet/current/config.properties" do
      source "config.properties.erb"
      owner 'riot'
      group 'riot'
      variables(:database_config => node[:pvpnet_cookbook][:database_config])
    end
  }

  restart Proc.new {
    bluepill_service 'pvpnet-unicorn' do 
      action :restart
    end
  }

  keep 2
  should_migrate (node[:pvpnet][:should_migrate] ? true : false)
  force (node[:pvpnet][:force_deploy] ? true : false)
  action :deploy
end
Deploying the latest from Nexus (Changed in > 1.0.0)
artifact_deploy "my-artifact" do
  version           "latest"
  artifact_location "com.foo:my-artifact:tgz"
  deploy_to         "/opt/my-artifact"
  owner             "artifact"
  group             "artifact"

  before_extract Proc.new {
    service "my-artifact" do
      action :stop
    end
  }

  configure Proc.new {
    template "#{release_path}/conf/config.properties" do
      source "config.properties.erb"
      owner  "artifact"
      group  "artifact"
      variables(:config => node[:my_artifact_cookbook][:config])
    end
  }

  restart Proc.new {
    service "my-artifact" do
      action :start
    end
  }
end
Configuring an artifact_deploy that may need to change over many Chef runs
artifact_deploy "my-artifact" do
  version           "1.0.0"
  artifact_location "http://www.fooo.com/my-artifact-1.0.0.tgz"
  deploy_to         "/srv/my-artifact"
  owner             node[:artifact_owner]
  group             node[:artifact_group]
  symlinks({
    "log" => "log"
  })
  force             node[:force_deploy]
end

Configuring your resource in this manner will allow you to ensure it can always change when you need it to. In other words,
configuring the force attribute to a node attribute, will allow you to change some of the more finer grained aspects of the
resource. For example, when force is true, you can also change the value of owner and group to remap the deployed artifact to
a new permissions scheme.

Testing

A sample cookbook is available in fixtures. You can package it with mkartifact.sh, and
upload it to Nexus as artifact_cookbook:test:1.2.3:tgz.

Set the artifact_test_location and artifact_test_version environment variables when running
vagrant to change how they'll be provisioned. Default is 1.2.3 from a file URL.

  • artifact_test_location=artifact_cookbook:test:1.2.3:tgz artifact_test_version=1.2.3 bundle exec vagrant

Releasing

  1. Install the prerequisite gems

    $ gem install chef
    $ gem install thor
    
  2. Increment the version number in the metadata.rb file

  3. Run the Thor release task to create a tag and push to the community site

    $ thor release
    

License and Author

Author:: Jamie Winsor (jamie@vialstudios.com)<br/>
Author:: Kyle Allan (kallan@riotgames.com)

Copyright 2013, Riot Games

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.

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