Buildout recipe making versioned remote deploys trivial.
Project description
praekelt.recipe.deploy
Buildout recipe making versioned remote deploys trivial.
Creates a bin/ script with which you can easily deploy buildouts to remote servers. Uses Fabric to communicate and run commands on remote servers.
NOTE: This recipe is under active development and has not been fully tested in a production environment. Use at your own risk.
The deploy process proceeds as follows:
The remote host as specified in host is accessed.
A new release path structure is created using this pattern: <root_path>/releases/<release_timestamp>.
The git repo as specified in git_url is cloned.
The newly cloned repo’s branch is switched to the branch as specified in git_branch. If git_branch is not specified no switch occurs.
The repo is switched to the latest tag for the active branch if deploy_latest_tag is specified as True. If deploy_latest_tag is not specified deploy will be performed from last commit of the active branch.
A Puppet manifest as specified in puppet_manifest is applied if provided.
Shared resources as specified in shared_resources are copied from the current release(if present) to the newly created release.
The Buildout’s boostrap.py is run using the python executable as specified in python_exec and a Buildout configuration file as specified in conf_file. python is used by default if python_exec is not specified, buildout.cfg is used by default if conf_file is not specified.
The Buildout is run using a Buildout configuration file as specified in conf_file. buildout.cfg is used by default if conf_file is not specified.
The <root_path>/current symlink is updated to point to newly created release.
Supervisor is updated($ supervisorctl update) if update_supervisor is specified as True.
Each supervisorctl command specified in supervisorctl_commands is run in order.
Each command specified in initd_commands is run in order.
Usage
Add a part in buildout.cfg like so:
[buildout] parts = deploy [deploy] recipe = praekelt.recipe.deploy git_url = git@github.com:me/projectx.git host = www.protectx.com root_path = /var/www/projectx
Running the buildout will add a deploy script with the same name as your deploy part in the bin/ directory. In this case bin/deploy. The resulting script will deploy git@github.com:me/projectx.git to www.projectx.com’s /var/www/projectx path.
Options
- as_user
User as which to perform the deploy. Used to setup permissions appropriately and to clone from github. Defaults to ‘www-data’.
- conf_file
Buildout cfg file with which to run boostrap and buildout. Defaults to ‘buildout.cfg’.
- cron_commands
Commands to add to the as_users user’s crontab.
- deploy_key_path
Path on host to key to use when cloning the repo.
- deploy_latest_tag
If True deploy will be performed from latest found tag for active branch. Otherwise deploy will be performed from last commit of the active branch. Defaults to ‘False’.
- git_branch
Git repo branch with which to perform the deploy.
- git_url
Git repo with which to perform the deploy. Required.
- host
Hostname on which to perform deploy. Required.
- initd_commands
init.d commands to run after a completed deploy. i.e. nginx restart.
- puppet_manifest
Puppet manifest file to apply prior to buildout. This will be applied using puppet apply <manifest>.
- python_exec
Python command with which to boostrap Buildout. Defaults to ‘python’.
- root_path
Root path in which to perform the deploy. current/release path structure will be created within this path. Required.
- shared_resources
Resource paths to copy accross from the current release to the new release on each deploy.
- supervisorctl_commands
supervisorctl commands to run after a completed deploy. i.e. restart all.
- update_supervisor
Whether or not to update supervisor. Defaults to ‘False’.
Full Example
The following example illustrates all available options:
[buildout] parts = deploy [deploy] recipe = praekelt.recipe.deploy as_user = www-data conf_file = production.cfg deploy_key_path = /var/www/.ssh/projectx_deploy_key deploy_latest_tag=True git_branch = production git_url = git@github.com:me/projectx.git host = www.protectx.com initd_commands = nginx restart puppet_manifest = provision.pp python_exec = python2.5 root_path = /var/www/projectx shared_resources = eggs downloads log media update_supervisor = True supervisorctl_commands = restart all cron_commands = * * * * * echo foobar
The resulting script will deploy the latest tag found for git@github.com:me/projectx.git’s production branch to www.projectx.com’s /var/www/projectx path as user www-data. The git repo will be cloned using /var/www/.ssh/projectx_deploy_key as ssh key. The Puppet manifest provision.pp will be applied. The eggs, downloads, log and media paths will be copied from the current release to this new release. The buildout environment will be created using python2.5 and run using production.cfg as configuration file. After the buildout completes supervisor will be updated and supervisorctl restart all will be run as well as /etc/init.d/nginx restart. * * * * * echo foobar will be added to www-data user’s crontab.
Changelog
0.1.3 (2011-06-29)
More forcefull supervisor update.
0.1.2 (2011-06-28)
Allow supervisorctl commands.
0.1.1 (2011-06-20)
Added command line git creds supply.
0.1.0
deploy_latest_tag option added.
Fail on init.d issues.
0.0.9
Resolved apply.pp bug.
0.0.8
Added Puppet manifest provisioning support via puppet_manifest option.
Pretty printing.
0.0.7
Added command env password option.
Added force commandline option bypassing confirmation prompts.
0.0.6
Added support for https git urls.
0.0.5
Added newest and verbose options.
0.0.3
Added cron_commands parameter. Allow for certain script argument overrides.
0.0.2
Fixed branch issue.
0.0.1
Initial Release
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