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Whiskey Disk: embarrassingly fast deployments.

README.markdown

Whiskey Disk -- embarrassingly fast deployments.

A very opinionated deployment tool, designed to be as fast as technologically possible. (For more background, read the WHY.txt file) Should work with any project which is git hosted, not just Ruby / Ruby on Rails projects. Allows for local deploys as well as remote.

Right-arrow through a short whiskey_disk presentation at http://wd2010.rickbradley.com/ (slide source available here.), covering the 0.2.*-era functionality.

You can also right-arrow through a shorter but more up-to-date whiskey_disk "lightning talk" presentation (from the 2010 Ruby Hoedown) at http://wdlightning.rickbradley.com/ (slide source available here.), covering the 0.4.*-era functionality.

tl;dr

First:

% gem install whiskey_disk

Then make a deploy.yml file (in config/ if you're doing a Rails project):

staging:
  domain: "deployment_user@staging.mydomain.com"
  deploy_to: "/path/to/where/i/deploy/staging.mydomain.com"
  repository: "https://github.com/username/project.git"
  branch: "staging"
  rake_env:
    RAILS_ENV: 'production'     

then:

% wd setup --to=staging

then:

% wd deploy --to=staging

Selling points

  • If you share the same opinions as we do there's almost no code involved, almost no dependencies, and it uses stock *nix tools (ssh, bash, rsync) to get everything done.

  • Written completely spec-first for 100% coverage. We even did that for the rake tasks, the init.rb and the plugin install.rb (if you swing that way).

  • 1 ssh connection per run -- so everything needed to do a full setup is done in one shot. Everything needed to do a full deployment is done in one shot. (Having 8 minute deploys failing because I was on CDMA wireless on a train in India where the connection won't stay up for more than 2-3 minutes is not where I want to be any more.)

  • Deployment configuration is specified as YAML data, not as code. Operations to perform after setup or deployment are specified as rake tasks.

  • You can do local deployments, by this I mean you can use whiskey_disk to deploy fully running instances of your application to the same machine you're developing on. This turns out to be surprisingly handy (well, I was surprised). NOTE: be sure to set your deploy_to to a place other than the current local checkout.

  • You can do multi-project deployments, specifying deployment data in a single deploy.yml config file, or keep an entire directory of project deployment config files.

  • You can separate per-deployment application configuration information (e.g., passwords, database configs, hoptoad/AWS/email config data, etc.) in separate repositories from the application, and whiskey_disk will merge the correct data onto the deployed application at deployment time. You can even share sets of configuration files among deployment targets that behave alike.

  • You can have per-developer configurations for targets (especially useful for "local" or "development" targets). Use .gitignore, or specify a config_branch and everyone can have their own local setup that just works.

  • There's no before_after_before_after hooks. You can use a well-defined rake hook and/or a bash script to run additional tasks.

  • You can enable "staleness checks" so that deployments only happen if either the main repo, or the config repo (if you're using one) has changes that are newer than what is currently deployed.

  • Put whiskey_disk in a cron, with staleness checks enabled, and you can do hands-free automated deployments whenever code is pushed to your deployment branch of choice!

  • You can deploy to multiple remote targets at once. Currently this is limited to one-after-the-other synchronous deployments, but we're thinking about doing them in parallel once we're happy with the stability of this (new) feature.

  • Assign hosts to roles (e.g., "web", "db", "app") and vary the shell or rake post-setup/post-deploy actions you run based on those roles.

Assumptions

  • your project is managed via git
  • you are deploying over ssh, or deploying locally and have a bash-compatible shell
  • you are comfortable defining (optional) post-setup and post-deployment actions with rake
  • you have an optional second git repository for per-application/per-target configuration files
  • you have an optional Rakefile in the top directory of your project's checkout

Dependencies

On the server from which the whiskey_disk process will be kicked off:

  • ruby
  • rake
  • whiskey_disk
  • ssh (if doing a remote deployment).

On the deployment target server (which may be the same as the first server):

  • a bash-compatible shell
  • rsync (only if using a configuration repository)
  • ruby, rake, whiskey_disk (only if running post_setup or post_deploy hooks)

If you're running on OS X or Linux you probably have all of these installed already. Note that the deployment target system doesn't even have to have ruby installed unless post_* rake hooks are being run.

Installation

As a gem:

% gem install whiskey_disk

As a rails plugin:

% script/plugin install git://github.com/flogic/whiskey_disk.git

Configuration

  • look in the examples/ directory for sample configuration files
  • main configuration is in <app_root>/config/deploy.yml
  • config files are YAML, with a section for each target.

Known config file settings (if you're familiar with capistrano and vlad these should seem eerily familiar):

domain:              host or list of hosts on which to deploy (these are ssh connect strings)
                     can also optionally include role information for each host
deploy_to:           path to which to deploy main application
repository:          git repo path for main application
branch:              git branch to deploy from main application git repo (default: master)
deploy_config_to:    where to deploy the configuration repository
config_repository:   git repository for configuration files
config_branch:       git branch to deploy from configuration git repo (default: master)
config_target:       configuration repository target path to use
project:             project name (used to compute path in configuration checkout)
post_deploy_script:  path to a shell script to run after deployment
post_setup_script:   path to a shell script to run after setup
rake_env:            hash of environment variables to set when running post_setup and post_deploy rake tasks

A simple config/deploy.yml might look like:

qa:
  domain: "ogc@qa.ogtastic.com"
  deploy_to: "/var/www/www.ogtastic.com"
  repository: "git@ogtastic.com:www.ogtastic.com.git"
  branch: "stable"
  rake_env:
    RAILS_ENV: 'production'
  • defining a deploy:<target>:post_setup rake task (e.g., in lib/tasks/ or in your project's Rakefile) will cause that task to be run at the end of deploy:setup

  • defining a deploy:<target>:post_deploy rake task (e.g., in lib/tasks/ or in your project's Rakefile) will cause that task to be run at the end of deploy:now

It's easy to specify a local deployment. The simplest way is to just not specify a "domain":

local:
  deploy_to: "/var/www/www.ogtastic.com"
  repository: "git@ogtastic.com:www.ogtastic.com.git"
  branch: "stable"
  rake_env:
    RAILS_ENV: 'production'

Or, just specify the string 'local' as the domain:

local:
  domain: "local"
  deploy_to: "/var/www/www.ogtastic.com"
  repository: "git@ogtastic.com:www.ogtastic.com.git"
  branch: "stable"
  rake_env:
    RAILS_ENV: 'production'

For deploying to multiple hosts, the config/deploy.yml might look like:

qa:
  domain:
  - "ogc@qa1.ogtastic.com"
  - "ogc@qa2.ogtastic.com""
  deploy_to: "/var/www/www.ogtastic.com"
  repository: "git@ogtastic.com:www.ogtastic.com.git"
  branch: "stable"
  rake_env:
    RAILS_ENV: 'production'

You can even include a local deployment along with remote deployments, simply use the 'local' name:

qa:
  domain:
  - "local"
  - "ogc@qa2.ogtastic.com""
  deploy_to: "/var/www/www.ogtastic.com"
  repository: "git@ogtastic.com:www.ogtastic.com.git"
  branch: "stable"
  rake_env:
    RAILS_ENV: 'production'

Specifying domains, with or without roles

There are a number of ways to specify domains (the ssh connection strings denoting the hosts where your code will be deployed). Here are just a few examples:

Just a single domain:

staging:
  domain: "foo@staging.example.com"

Just a single domain, but specified as a one-item list:

qa:
  domain: 
  - "foo@qa.example.com"

A list of multiple domains:

production:
  domain:
  - "foo@appserver1.example.com"
  - "foo@appserver2.example.com"
  - "foo@www.example.com"

Using the "name" label for the domain names (if using roles, as described below, the "name" label is required, otherwise it's optional and superfluous):

ci:
  domain:
  - name: "build@ci.example.com"

It's also possible to assign various "roles" to the domains to which you deploy. Some common usages would be "www", which might need a post_deploy task which notifies some web server software (apache, nginx, passenger, unicorn, etc.) that it should refresh the contents being served; or perhaps "db", which might need some set of post-deployment database migrations run (and which shouldn't be run from multiple servers).

The role names are simply strings and you can create whichever roles you wish. See the section below entitled "Taking actions based on roles" to see how to use roles to control actions when setting up or deploying to a target.

Roles are described in the domain: section of the configuration file. There are, of course, a few different valid ways to specify roles. Note that the domain name must now be labeled when roles are being specified for the domain.

A single role for a domain can be specified inline:

production:
  domain:
  - name: "foo@appserver1.example.com"
    roles: "web"

While multiple roles for a domain must be specified as a list:

production:
  domain:
  - name: "foo@appserver1.example.com"
    roles: 
    - "web"
    - "app"
    - "db"

But domains with roles can be specified alongside simple domains as well:

production:
  domain:
  - name: "bar@demo.example.com"
  - "user@otherhost.domain.com"
  - name: "foo@appserver1.example.com"
    roles: 
    - "web"
    - "app"
    - "db"

And, if you need to assign roles for a local deployment, you can do that as well:

local:
  domain:
  - name: "local"
    roles: 
    - "web"
    - "app"
    - "db"

All that said, it's often simpler to refrain from carving up hosts into roles. But who's going to listen to reason?

post_deploy_script and post_setup_script

Whiskey_disk provides rake task hooks (deploy:post_setup and deploy:post_deploy) to allow running custom code after setup or deployment. There are situations where it is desirable to run some commands prior to running those rake tasks (e.g., if using bundler and needing to do a 'bundle install' before running rake). It may also be the case that the target system doesn't have rake (and/or ruby) installed, but some post-setup or post-deploy operations need to happen. For these reasons, whiskey_disk allows specifying a (bash-compatible) shell script to run after setup and/or deployment via the post_deploy_script and post_setup_script settings in the configuration file. These scripts, when specified, are run immediately before running the deploy:post_setup or deploy:post_deploy rake tasks, if they are present.

The paths provided to post_deploy_script and post_setup_script can be either absolute or relative. A path starting with a '/' is an absolute path, and the script specified should be at that exact location on the target filesystem. A path which does not start with a '/' is a relative path, and the script specified should be located at the specified path under the deployed application path. This implies that it's possible to manage post_setup and post_deploy scripts out of a configuration repository.

A config/deploy.yml using post_deploy_script and post_setup_script might look like this:

production:
  domain: "ogc@www.ogtastic.com"
  deploy_to: "/var/www/www.ogtastic.com"
  repository: "git@ogtastic.com:www.ogtastic.com.git"
  branch: "stable"
  post_setup_script: "/home/ogc/horrible_place_for_this/prod-setup.sh"
  post_deploy_script: "bin/post-deploy.sh"
  rake_env:
    RAILS_ENV: 'production'

The post_deploy_script will be run from /var/www/www.ogtastic.com/bin/post-deploy.sh on the target system.

Taking actions based on roles

When running rake tasks or other ruby scripts

Whiskey_disk includes a helper library for use in rake tasks and other ruby scripts. In that library you'll find a ruby function 'role?' which returns true if you're currently being deployed to a domain with the given role. For example:

require 'whiskey_disk/helpers'

namespace :deploy do
  task :create_rails_directories do
    if role? :www
      puts "creating log/ and tmp/ directories"
      Dir.chdir(RAILS_ROOT)
      system("mkdir -p log tmp")
    end
  end        

  task :db_migrate_if_necessary do
            Rake::Task['db:migrate'] if role? :db
  end

  # whytf is this even necessary?  Come on.  This should be built into ts:restart.
  task :thinking_sphinx_restart => [:environment] do
    if role? :app
      Rake::Task['ts:stop'].invoke rescue nil
      Rake::Task['ts:index'].invoke
      Rake::Task['ts:start'].invoke
    end
  end

  task :bounce_passenger do
    if role? :www
      puts "restarting Passenger web server"
      Dir.chdir(RAILS_ROOT)
      system("touch tmp/restart.txt")    
    end
  end

  # etc...

  task :post_setup  => [ :create_rails_directories ]
  task :post_deploy => [ :db_migrate_if_necessary, :thinking_sphinx_restart, :bounce_passenger ]
end

When working with the shell

Installing the whiskey_disk gem also installs another binary, called wd_role. It's job is really simple, given a role, determine if we're currently in a deployment that matches that role. If so, exit with a success exit status, otherwise, exit with an error exit status. This allows programs running in the shell to conditionally execute code based on domain roles. This is particularly applicable to post_setup_script and post_deploy_script code.

Here's an off-the-cuff example of how one might use wd_role. We have the rockhands gem installed (obviously), and are in an environment where the 'app' role is active but the 'web' role is not:

$ wd_role web && rock || shocker
     .-.     
   .-.U|     
   |U| | .-. 
   | | |_|U| 
   | | | | | 
  /|     ` |
 | |       | 
 |         | 
  \        / 
  |       |  
  |       |  

$ wd_role app && rock || shocker
   .-.       
   |U|       
   | |   .-. 
   | |-._|U| 
   | | | | | 
  /|     ` | 
 | |       | 
 |         | 
          / 
  |       |  
  |       |  

Running whiskey_disk from the command-line

% wd setup --to=<target>
% wd setup --to=<project>:<target>
% wd setup --to=foo:qa --path=/etc/whiskey_disk/deploy.yml
% wd setup --to=foo:qa --path=https://github.com/username/project/raw/master/path/to/configs/deploy.yml
% wd setup --to=foo:qa --only=myhost.example.com

% wd deploy --to=<target>
% wd deploy --to=<project>:<target>
% wd deploy --to=foo:qa --path=/etc/whiskey_disk/deploy.yml
% wd deploy --to=foo:qa --path=https://github.com/username/project/raw/master/path/to/configs/deploy.yml
% wd deploy --to=foo:qa --only=myhost.example.com

Note that the wd command (unlike rake, which requires a Rakefile in the current directory) can be run from anywhere, so you can deploy any project, working from any path, and can even specify where to find the deployment YAML configuration file.

The --path argument can take either a file or a directory. When given a file it will use that file as the configuration file. When given a directory it will look in that directory for deploy/<project>/<target>.yml, then deploy/<project>.yml, then deploy/<target>.yml, then <target>.yml, and finally, deploy.yml.

To make things even better, you can provide an URL as the --path argument and have a central location from which to pull deployment YAML data. This means that you can centrally administer the definitive deployment information for the various projects and targets you manage. This could be as simple as keeping them in a text file hosted on a web server, checking them into git and using github or gitweb to serve up the file contents on HEAD, or it could be a programmatically managed configuration management system returning dynamically-generated results.

All this means you can manage a large number of project deployments (local or remote) and have a single scripted deployment manager that keeps them up to date. Configurations can live in a centralized location, and developers don't have to be actively involved in ensuring code gets shipped up to a server. Win.

When doing scripted deployments for a group of nodes who appear in the same 'domain' list, it's possible to specify the --only setting so that you can identify which domain entries belong to a specific node. For example, given this configuration:

production:
  domain:
  - foo.example.com
  - bar.example.com
  repository: git@github.com:foo.git

We would like to be able to set up the following scripted runs on foo.example.com and bar.example.com:

foo% wd deploy --to=app:production --path=http://automation.example.com/wd/deploy.yml
bar% wd deploy --to=app:production --path=http://automation.example.com/wd/deploy.yml

But without specifying --only we end up with undesired results. When foo.example.com runs it will see that it needs to make sure deployment happens on 'foo.example.com' and 'bar.example.com'. So, wd will ssh from foo.example.com to foo.example.com (less than ideal), deploy, and then ... it will ssh from foo.example.com to bar.example.com and do a deployment. When bar.example.com runs, however, it will also ssh to bar.example.com, and also to foo.example.com. So each host will be deployed twice.

The --only setting is used to tell a node what its name is, and to tell it not to bother trying to deploy other nodes that it finds in the target's "domain" listing. In other words, deployment is being managed from afar, and it's best to just manage ourselves and forego managing other nodes.

A note about post_{setup,deploy} Rake tasks

If you want actions to run on the deployment target after you do a whiskey_disk setup or whiskey_disk deploy, you will need to make sure that whiskey_disk is available on the target system (either by gem installation, as a rails plugin in the Rails application to be deployed, or as a vendored library in the application to be deployed). Whiskey_disk provides the basic deploy:post_setup and deploy:post_deploy hooks which get called. You can also define these tasks yourself if you want to eliminate the dependency on whiskey_disk on the deployment target system.

Running via rake

In your Rakefile:

require 'whiskey_disk/rake'

Then, from the command-line:

% rake deploy:setup to=<target>   (e.g., "qa", "staging", "production", etc.)
% rake deploy:now   to=<target>

or, specifying the project name:

% rake deploy:setup to=<project>:<target>   (e.g., "foo:qa", "bar:production", etc.)
% rake deploy:now   to=<project>:<target>

enabling staleness checking (see below):

% rake deploy:setup to=<project>:<target> check=yes
% rake deploy:now   to=<project>:<target> check=yes

maybe even specifying the path to the configuration file:

% rake deploy:setup to=<project>:<target> path=/etc/deploy.yml
% rake deploy:now   to=<project>:<target> path=/etc/deploy.yml

how about specifying the configuration file via URL:

% rake deploy:setup to=<project>:<target> path=https://github.com/username/project/raw/master/path/to/configs/deploy.yml
% rake deploy:now   to=<project>:<target> path=https://github.com/username/project/raw/master/path/to/configs/deploy.yml

Finally, it's also possible to specify the 'only' variable to limit 'domain' entries of interest:

% rake deploy:setup to=<project>:<target> only=myhost.example.com
% rake deploy:now to=<project>:<target> only=myhost.example.com

(see the discussion of --only above in "Running whiskey_disk from the command-line" for more information)

Staleness checks

Enabling staleness checking will cause whiskey_disk to check whether the deployed checkout of the repository is out of date ("stale") with respect to the upstream version in git. If there is a configuration repository in use, whiskey_disk will check the deployed checkout of the configuration repository for staleness as well. If the checkouts are already up-to-date the deployment process will print an up-to-date message and stop rather than proceeding with any of the deployment actions. This makes it easy to simply run whiskey_disk out of cron so that it will automatically perform a deployment whenever changes are pushed to the upstream git repositories.

To turn on staleness checking, simply specify the '--check' flag when deploying (or the shorter '-c')

wd deploy --check --to=foobar:production

If running whiskey_disk purely via rake, you can also enable staleness checking. This works by setting the 'check' environment variable to the string 'true' or 'yes':

% check='true' to='whiskey_disk:testing' rake deploy:now

Configuration Repository

What's all this about a second repository for configuration stuff?

This is completely optional, but we really are digging this, so maybe you should try it. Basically it goes like this...

We have a number of web applications that we manage. Usually there's a customer, there might be third-party developers, or the customer might have access to the git repo, or their designer might, etc. We also tend to run a few instances of any given app, for any given customer. So, we'll run a "production" site, which is the public- facing, world-accessible main site. We'll usually also run a "staging" site, which is roughly the same code, maybe the same data, running on a different URL, which the customer can look at to see if the functionality there is suitable for deploying out to production. We sometimes run a "development" site which is even less likely to be the same code as production, etc., but gives visibility into what might end up in production one day soon.

So we'll store the code for all of these versions of a site in the same git repo, typically using a different remote branch for each target ("qa", "production", "staging", "development").

One thing that comes up pretty quickly is that there are various files associated with the application which have more to do with configuration of a running instance than they have to do with the application in general. In the rails world these files are probably in config, or config/initializers/. Think database connection information, search engine settings, exception notification plugin data, email configuration, Amazon S3 credentials, e-commerce back-end configuration, etc.

We don't want the production site using the same database as the development site. We don't want staging using (and re-indexing, re-starting, etc.) production's search engine server. We don't want any site other than production to send account reset emails, or to push orders out to fulfillment, etc.

For some reason, the answer to this with cap and/or vlad has been to have recipes which reference various files up in a shared area on the server, do copying or symlinking, etc. Where did those files come from? How did they get there? How are they managed over time? If they got there via a configuration tool, why (a) are they not in the right place, or (b) do we have to do work to get them into the right place?

So, we decided that we'd change how we deal with the issue. Instead of moving files around or symlinking every time we deploy, we will manage the configuration data just like we manage other files required by our projects -- with git.

So, each project we deploy is associated with a config repo in our git repository. Usually many projects are in the same repo, because we're the only people to see the data and there's no confidentiality issue. But, if a customer has access to their git information then we'll make a separate config repo for all that customers' projects. (This is easier to manage than it sounds if you're using gitosis, btw.)

Anyway, a config repo is just a git repo. In it are directories for every project whose configuration information is managed in that repo. For example, there's a "larry" directory in our main config repo, because we're deploying the larry project to manage our high-level configuration data.

Note, if you set the 'project' setting in deploy.yml, that determines the name of the top-level project directory whiskey_disk will hunt for in your config repo. If you don't it uses the 'repository' setting (i.e., the git URL) to try to guess what the project name might be. So if the URL ends in foo/bar.git, or foo:bar.git, or /bar, or :bar, whiskey_disk is going to guess "bar". If it's all bitched up, just set 'project' manually in deploy.yml.

Inside the project directory is a directory named for each target we might deploy to. Frankly, we've been using "production", "staging", "development", and "local" on just about everything.

Inside the target directory is a tree of files. So, e.g., there's config/, which has initializers/ and database.yml in it.

Long story short, load up whatever configuration files you're using into the repo as described, and come deployment time exactly those files will be overlaid on top of the most recent checkout of the project. Snap.

project-config/
  |
  +---larry/
        |
        +---production/
        |     |
        |     +---config/
        |           |
        |           +---initializers/
        |           |
        |           +---database.yml
        |
        +---staging/
        |     |
        |     |
        |     +---config/
        |           |
        |           ....
        |
        +---development/
        |     |
        |     +---config/
        |           |
        |           ....
        |
        +---local/
              |
              +---config/
                    |
                    ....

Sharing a set of configuration files among multiple targets

Developers on applications with many deployment targets can find that configuration repositories can become a burden to maintain, especially when a number of environments share essentially the same configurations. For example, for an application where deployments for user acceptance testing, QA, staging, and feature branch demoing are all essentially the same (though differing from production configurations and developer configurations), it's probably easiest to store a configuration for development, a configuration for production, a configuration for staging and then use the staging configuration for all the other environments: user acceptance testing, QA, staging, demo1, demo2, etc. Using the config_target setting, a deploy.yml might look like this:

production:
  domain: "www.ogtastic.com"
  deploy_to: "/var/www/www.ogtastic.com"
  repository: "git@ogtastic.com:www.ogtastic.com.git"
  branch: "production"
  config_repository: "git@ogtastic.com:ogc-production-config.git"
development:
  deploy_to: '/var/www/devel.ogtastic.com'
  repository: "git@ogtastic.com:www.ogtastic.com.git"
  branch: "develop"
  config_repository: "git@ogtastic.com:ogc-config.git"
staging:
  [...]
  config_repository: "git@ogtastic.com:ogc-config.git"
uat:
  [....]
  config_repository: "git@ogtastic.com:ogc-config.git"
  config_target: "staging"
qa:
  [....]
  config_repository: "git@ogtastic.com:ogc-config.git"
  config_target: "staging"

So here we have the 'staging', 'uat', and 'qa' deployment targets all sharing the 'staging' configuration repo information. The non-production configuration repo can then look like:

project-config/
  |
  +---ogtastic/
        |
        +---staging/
        |     |
        |     |
        |     +---config/
        |           |
        |           ....
        |
        +---development/
              |
              +---config/
                    |
                    ....

Notice that there are no separate trees for 'uat' and 'qa' targets.

More Examples:

  • We are using whiskey_disk to manage larry. See https://github.com/flogic/larry/blob/master/config/deploy-local.yml.example and http://github.com/flogic/larry/blob/master/lib/tasks/deploy.rake

  • Here is a sample of a lib/tasks/deploy.rake from a Rails application we deployed once upon a time:

    RAILS_ENV=ENV['RAILS_ENV'] if ENV['RAILS_ENV'] and '' != ENV['RAILS_ENV'] Rake::Task['environment'].invoke

    require 'asset_cache_sweeper'

    namespace :deploy do task :create_rails_directories do puts "creating log/ and tmp/ directories" Dir.chdir(RAILS_ROOT) system("mkdir -p log tmp") end

    # note that the plpgsql language needs to be installed by the db admin at initial database creation :-/ task :setup_postgres_for_thinking_sphinx => [ :environment ] do ThinkingSphinx::PostgreSQLAdapter.new(Product).setup end

    # whytf is this even necessary? Come on. This should be built into ts:restart. task :thinking_sphinx_restart => [:environment] do Rake::Task['ts:stop'].invoke rescue nil Rake::Task['ts:index'].invoke Rake::Task['ts:start'].invoke end

    task :bounce_passenger do puts "restarting Passenger web server" Dir.chdir(RAILS_ROOT) system("touch tmp/restart.txt")
    end

    task :clear_asset_cache => [:environment] do STDERR.puts "Expiring cached Assets for domains [#{AssetCacheSweeper.domains.join(", ")}]" AssetCacheSweeper.expire end

    task :post_setup => [ :create_rails_directories, :setup_postgres_for_thinking_sphinx ] task :post_deploy => [ 'db:migrate', 'ts:config', :thinking_sphinx_restart, :bounce_passenger, :clear_asset_cache ] end

Future Directions

Check out the Pivotal Tracker project to see what we have in mind for the near future.

Resources

Contributors

  • Rick Bradley (rick@rickbradley.com, github:rick)
  • Jeremy Holland (jeremy@jeremypholland.com, github:therubyneck): feature/bugfix contributions
  • Kevin Barnes (@vinbarnes), Yossef Mendelssohn (cardioid) for design help and proofreading
  • Alex Sharp (ajsharp@gmail.com) - issues, real-world usage cases, design feedback
  • Josh Moore (josh@codingforrent.com) - tracking down issues handling bad project Rakefiles
  • Cristi Balan (evilchelu) for feedback and proofreading
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