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Deploy and manage Propertyshelf Plone applications using Fabric.

Project description


This project contains a bunch of fabric commands we use at Propertyshelf to deploy and maintain our Plone CMS systems.


propertyshelf.fabfile.plone currently uses knife to communicate with Rackspace servers. Please make sure knife is installed and configured successfully on your system.


You can install propertyshelf.fabfile.plone with PIP:

pip install propertyshelf.fabfile.plone

All required dependencies will be installed automatically.


First, we need a working knife.rb file to interact with our Chef server and the Rackspace cloud eco system. Below is an example knife.rb file that gets all its required info from environment variables. This way you can add this knife.rb file inside a .chef directory to your project and savely put it under version control:

# Logging.
log_level                         :info
log_location                      STDOUT

# Chef server configuration.
chef_server_url                   "#{ENV['KNIFE_CHEF_SERVER']}"
client_key                        "#{ENV['KNIFE_CLIENT_KEY']}"
node_name                         "#{ENV['KNIFE_NODE_NAME']}"
validation_client_name            "#{ENV['KNIFE_VALIDATION_CLIENT_NAME']}"
validation_key                    "#{ENV['KNIFE_VALIDATION_CLIENT_KEY']}"
encrypted_data_bag_secret         "#{ENV['ENCRYPTED_DATA_BAG_SECRET_FILE']}"

# Rackspace API configuration.
knife[:rackspace_api_key]       = "#{ENV['RACKSPACE_API_KEY']}"
knife[:rackspace_api_username]  = "#{ENV['RACKSPACE_USERNAME']}"
knife[:rackspace_endpoint]      = "#{ENV['RACKSPACE_ENDPOINT']}"
knife[:rackspace_version]       = "#{ENV['RACKSPACE_VERSION']}"

Next, we need a All we need to do is to import propertyshelf.fabfile.plone to make the fabric commands available and the available environments we can work with from propertyshelf.fabfile.common.:

# -*- coding: utf-8 -*-
"""Sample application deployment script."""

from fabric import api

from propertyshelf.fabfile.common.environments import *
from propertyshelf.fabfile.plone import *

# Definition of role names to be used.
api.env.role_base = 'plone_01'
api.env.role_database = '%s_database' % api.env.role_base
api.env.role_frontend = '%s_frontend' % api.env.role_base
api.env.role_worker = '%s_worker' % api.env.role_base

# Definition of used Rackspace flavors (server sized) for our servers.
api.env.flavor_database = '4'
api.env.flavor_frontend = '2'
api.env.flavor_worker = '2'

# Definition of node names to be used.
BASE_NODENAME = 'plone-01'
api.env.nodename_database = '%s-database' % BASE_NODENAME
api.env.nodename_frontend = '%s-frontend' % BASE_NODENAME
api.env.nodename_worker = '%s-worker' % BASE_NODENAME
api.env.nodename_development = BASE_NODENAME

# The Rackspace server image we use. This is a Debian 6.0.6.
api.env.os_image = '695ca76e-fc0d-4e36-82e0-8ed66480a999'

api.env.domain = ''
api.env.vhost_databag = 'virtual_hosts_plone_01'
api.env.plone_version = '4.3.2'

You can now use fabric to manage your Plone application:

$ fab -l
Sample application deployment script.

Available commands:

    development               Work locally with vagrant.
    production                Work with the production environment.
    staging                   Work with the staging environment.
    bootstrap.database        Bootstrap a new standalone database server.
    bootstrap.frontend        Bootstrap a new standalone frontend server.
    bootstrap.plone_m         Bootstrap a new 'Plone M' bundle.
    bootstrap.staging         Bootstrap a staging system.
    bootstrap.worker          Bootstrap a new standalone application worker.
    client.rebuild            Rebuild the application using buildout.
    client.remove             Remove an existing MLS application client.
    client.restart            Restart the application client component.
    client.update             Update the client packages.
    database.download_blobs   Download blob part of Zope's data from the server.
    database.download_data    Download the database files from the server.
    database.download_zodb    Download ZODB part of Zope's data from the server.
    database.restart          Restart the database component.
    database.upload_blob      Upload blob part of Zope's data to the server.
    database.upload_data      Upload the database files to the server.
    database.upload_zodb      Upload ZODB part of Zope's data to the server.
    frontend.restart          Restart the frontend components.
    frontend.restart_haproxy  Restart the HA-Proxy load balancer component.
    frontend.restart_nginx    Restart the NginX web server component.
    frontend.restart_varnish  Restart the Varnish caching proxy component.
    roles.check               Check if the required roles are available.
    roles.create_missing      Create missing roles on the chef server.
    roles.list_nodes          List all available nodes with given roles.

Before we can start it is a good idea to check if all roles we defined are available on the chef server:

$ fab roles.check
Role plone_01 NOT available.
Role plone_01_database NOT available.
Role plone_01_frontend NOT available.
Role plone_01_worker NOT available.


To create the missing roles based on our configuration, we simply have to do:

$ fab roles.create_missing
Created role plone_01
Created role plone_01_database
Created role plone_01_frontend
Created role plone_01_worker


You can now manage the single components:

$ fab production frontend.restart
[x.x.x.x] Executing task 'frontend.restart'
[x.x.x.x] sudo: /etc/init.d/haproxy restart
[x.x.x.x] out: sudo password:

[x.x.x.x] out: Restarting haproxy: haproxy.
[x.x.x.x] out:

[x.x.x.x] sudo: /etc/init.d/varnish restart
[x.x.x.x] out: sudo password:
[x.x.x.x] out: Stopping HTTP accelerator: varnishd.
[x.x.x.x] out: Starting HTTP accelerator: varnishd.
[x.x.x.x] out:

[x.x.x.x] sudo: /etc/init.d/nginx restart
[x.x.x.x] out: sudo password:
[x.x.x.x] out: Restarting nginx: nginx.
[x.x.x.x] out:

Disconnecting from x.x.x.x... done.

We also support download of the database files for local testing:

$ fab production database.download_data
[x.x.x.x] Executing task 'database.download_data'
This will overwrite your local Data.fs. Are you sure you want to continue? [Y/n]
[localhost] local: mkdir -p var/filestorage
[localhost] local: mv var/filestorage/Data.fs var/filestorage/Data.fs.bak
[x.x.x.x] out: sudo password:
[x.x.x.x] sudo: rsync -a var/filestorage/Data.fs /tmp/Data.fs
[x.x.x.x] out: sudo password:
[x.x.x.x] out:
[x.x.x.x] download: /Volumes/Work/Propertyshelf/Plone/Provisioning/var/filestorage/Data.fs <- /tmp/Data.fs
This will overwrite your local blob files. Are you sure you want to continue? [Y/n]
[localhost] local: rm -rf var/blobstorage_bak
[localhost] local: mv var/blobstorage var/blobstorage_bak
[x.x.x.x] sudo: rsync -a ./var/blobstorage /tmp/
[x.x.x.x] out: sudo password:
[x.x.x.x] out:
[x.x.x.x] sudo: tar czf blobstorage.tgz blobstorage
[x.x.x.x] out: sudo password:
[x.x.x.x] out:
[x.x.x.x] download: /Volumes/Work/Propertyshelf/Plone/Provisioning/var/blobstorage.tgz <- /tmp/blobstorage.tgz

Warning: Local file /Volumes/Work/Propertyshelf/Plone/Provisioning/var/blobstorage.tgz already exists and is being overwritten.

[localhost] local: tar xzf blobstorage.tgz

Disconnecting from x.x.x.x... done.


Thomas Massmann, Author


0.1 (2013-12-20)

  • Added basic deployment and management commands for Plone applications.

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