Painless Deployment with Capistrano

ВЫКЛАДКАБЕЗ БОЛИ С

CAPISTRANOPAINLESS DEPLOYMENT WITH CAPISTRANO

/ Николай Кугаевский @kugaevsky

TRUE OLD SCHOOLRsyncSCPFTP

NOT SO OLDssh → git pullFabric

MONSTAZ!PuppetChefSaltAnsible

CAPISTRANO TO THE RESCUE

CAPISTRANOCapistrano is a remote server automation and deployment tool

written in Ruby.

It supports the scripting and execution of arbitrary tasks, andincludes a set of sane-default deployment workflows.

CAPISTRANORubyOpen sourceExpressive DSLSimity0-time deploy/rollbackMultistagingRoles

INSTALL AND INIT

$ cd my_perfect_app $ gem install capistrano $ cap install

CONFIG

# config/deploy.rbset :application, 'slides'set :repo_url, '[email protected]:kugaevsky/slides.git'

# config/deploy/staging.rbrole :app, %w{[email protected]}set :deploy_to, '/home/kugaevsky/www/slides.kugaevsky.ru'set :user, 'nick'

ANATOMY LOCAL

my_perfect_app├── Capfile├── config│ ├── deploy│ │ ├── production.rb│ │ ├── staging.rb│ │ └── ...│ └── deploy.rb└── lib └── capistrano └── tasks

ANATOMY HOST

my_perfect_app├── current → ../releases/20141209222103├── releases│ ├── 20141209220703│ ├── 20141209222103│ └── ...├── repo│ ├── branches│ ├── config│ ├── description│ └── ...└── shared ├── node_modules ├── uploads ├── vendor └── ...

DEPLOY FLOW

deploy:starting # start a deployment, make sure everything is readydeploy:started # started hook (for custom tasks)deploy:updating # update server(s) with a new releasedeploy:updated # updated hookdeploy:publishing # publish the new releasedeploy:published # published hookdeploy:finishing # finish the deployment, clean up everythingdeploy:finished # finished hook

ROLLBACK FLOW

deploy:startingdeploy:starteddeploy:reverting # revert server(s) to previous releasedeploy:reverted # reverted hookdeploy:publishingdeploy:publisheddeploy:finishing_rollback # finish the rollback, clean up everythingdeploy:finished

PLUGINS!

# Capfilerequire 'capistrano/rvm'require 'capistrano/rbenv'require 'capistrano/chruby'require 'capistrano/bundler'require 'capistrano/rails/assets'require 'capistrano/rails/migrations'

REAL WORLD EXAMPLE

# config/deploy.rbdesc 'Create symlinks for npm modules'task :npm do on roles(:app) do execute "ln -nfs #{shared_path}/node_modules #{release_path}/node_modules" endend

desc 'Install npm modules'task :npm do on roles(:app) do execute "cd #{release_path} && npm install" endend

desc 'Compile assets'task :compile_assets do on roles(:app) do execute "cd #{release_path} && #{shared_path}/node_modules/.bin/gulp compile:production" endend

ALTERNATIVESVlad the DeployerMina

READINGCapistrano official siteRepository on GitHubHow To Use Capistrano to Automate Deployments

СПАСИБОВЫКЛАДКА БЕЗ БОЛИ С CAPISTRANO

PAINLESS DEPLOYMENT WITH CAPISTRANO

для

http://slides.kugaevsky.ru/Николай Кугаевский rannts#3