Capistrano is an open source tool for running scripts on multiple servers. It’s primary use is for easily deploying applications. While it was built specifically for deploying Rails apps, it’s pretty simple to customize it to deploy other types of applications. capifony is a deployment recipes collection that works with both symfony and Symfony2 applications.

1. Yury Pliashkou
CTO, IdeaSoft
pliashkou@gmail.com
Minsk, 2014

2. Requirements:
ruby, rubygems
Installation:
gem install capifony
Setup project:
cd path/to/your/project
capifony .

3. Deployment strategies: deployment → scm → production
# deploy.rb
set :application, "My App"
set :deploy_to, "/var/www/my-app.com"
set :domain, "my-app.com"
set :scm, :git
set :repository, "ssh-gitrepo-domain.com:/path/to/repo.git"
role :web, domain
role :app, domain, :primary => true
set :use_sudo, false
set :keep_releases, 3

4. Deployment strategies: deployment → scm → production
In this case, on every cap deploy, capifony will:
● ssh to production (my-app.com)
● create a new release path (/var/www/my-app.com/releases/...)
● clone the latest project version from the remote git repo (ssh-gitrepo-
domain.com)
● copy the source code, pulled from git, into the release path
● run deployment hooks (cache:warmup, cc, etc.)

5. Deployment strategies: deployment → production (via copy)
# deploy.rb
set :application, "My App"
set :deploy_to, "/var/www/my-app.com"
set :domain, "my-app.com"
set :scm, :git
set :repository, "file:///Users/deployer/sites/my-app"
set :deploy_via, :copy
role :web, domain
role :app, domain, :primary => true
set :use_sudo, false
set :keep_releases, 3

6. Deployment strategies: deployment → production (via copy)
In this case, on every cap deploy, capifony will:
● ssh to production (my-app.com)
● create a new release path (/var/www/my-app.com/releases/...)
● clone the latest project version from the local git repo
● copy the source code, pulled from git, onto the production
server via wires
● run deployment hooks (cache:warmup, cc, etc.)
Deploy is very expensive and slow! Solution:
gem install capistrano_rsync_with_remote_cache
set :deploy_via, :rsync_with_remote_cache

7. Setup server:
cap deploy:setup
This command will create the following approximate directory structure :
`-- /var/www/my-app.com
|-- current → /var/www/my-app.
com/releases/20100512131539
|-- releases
| `-- 20100512131539
| `-- 20100509150741
| `-- 20100509145325
`-- shared
|-- web
| `-- uploads
|-- log
`-- config
`-- databases.yml

8. Deploy!
cap deploy
Something went wrong???
cap deploy:rollback

9. Symfony2 Deployment
First, add the following to your app/config/deploy.rb file so
that theparameters.yml file is shared between all
deployments:
set :shared_files, ["app/config/parameters.yml"]
Next, share the vendor directory between all deployments to make deploying
faster:
set :shared_children, [app_path + "/logs", web_path + "/uploads", "vendor"]
To install your vendors, capifony will rely on bin/vendors by default. But the
recommended dependency manager is now Composer. In order to use it, just add
the following configuration:
set :use_composer, true
set :update_vendors, true

10. Useful Tasks
If you need to deploy and run your migrations you can call:
cap deploy:migrations
To run your test suite on the production server, just invoke:
cap deploy:test_all
You can invoke tasks/commands by calling:
cap symfony
If you want to see all available tasks, you can run:
cap -vT

11. Symfony 2 Configuration Reference
All symfony tasks run using the default php binary on the production
server. You can change this via:
set :php_bin, "/path/to/php"
All symfony tasks also run inside the prod environment on production
server. You can change this via:
set :symfony_env_prod, "staging"
If you use AsseticBundle with Symfony2, then you probably want to dump
assets on every deploy:
set :dump_assetic_assets, true

12. Recipe: Automatically set proper permissions
set :writable_dirs, ["app/cache", "app/logs"]
set :webserver_user, "www-data"
set :permission_method, :acl
set :use_set_permissions, true
Recipe: Speeding up deploy
before 'symfony:composer:install', 'composer:copy_vendors'
before 'symfony:composer:update', 'composer:copy_vendors'
namespace :composer do
task :copy_vendors, :except => { :no_release => true } do
run "vendorDir=#{current_path}/vendor; if [ -d $vendorDir ] || [ -h
$vendorDir ]; then cp -a $vendorDir #{latest_release}/vendor; fi;"
end
end

13. Recipe: How to keep Symfony2 sessions after deploy
In order to change sessions save path change the save_path parameter
under a framework node in your application’s config.yml
framework:
session:
save_path: "%kernel.root_dir%/sessions/"
You have to add also your sessions directory to Capifony’s :shared_children
# deploy.rb
set :shared_children, [log_path, ..., app_path + "/sessions"]

14. Recipe: Working with databases
Dump remote database, and download this dump to local backups/ folder:
cap database:dump:remote
Dump local database, and put this dump to local backups/ folder:
cap database:dump:local
Dump remote database, and populate this dump on local machine:
cap database:copy:to_local
Dump local database, and populate this dump on remote server:
cap database:copy:to_remote

15. Demo

16. Questions ?
Yury Pliashkou
CTO, IdeaSoft
pliashkou@gmail.com