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July 10, 2013 21:54
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Heroku deployment rakefile.
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| # Deploy and rollback on Heroku in qa and production | |
| # sources: https://gist.github.com/njvitto/362873 | |
| # https://gist.github.com/djburdick/4410411 | |
| task :deploy_qa_light => ['deploy:set_qa_app', 'deploy:push', 'deploy:tag'] | |
| task :deploy_production_light => ['deploy:set_production_app', 'deploy:push', 'deploy:tag'] | |
| namespace :deploy do | |
| PRODUCTION_APP = 'my-heroku-prod-app' | |
| QA_APP = 'my-heroku-qa-app' | |
| task :qa_migrations => [:set_qa_app, :push, :collectstatic, :off, :migrate, :restart, :on, :tag] | |
| task :qa_rollback => [:set_qa_app, :off, :rollback, :collectstatic, :restart, :on] | |
| task :production_migrations => [:set_production_app, :push, :collectstatic, :off, :backup_prod_db, :migrate, :restart, :on, :tag] | |
| task :production_rollback => [:set_production_app, :off, :rollback, :collectstatic, :restart, :on] | |
| task :refresh_qa_db => [:set_qa_app, :off, :transfer_prod_db_to_qa, :on] | |
| task :backup_prod_db => :set_production_app do | |
| puts 'Backing up production database ...' | |
| system("heroku pgbackups:capture --app #{PRODUCTION_APP} --expire") | |
| end | |
| task :set_qa_app do | |
| APP = QA_APP | |
| puts "=== APP #{APP} ===" | |
| end | |
| task :set_production_app do | |
| APP = PRODUCTION_APP | |
| puts "=== APP #{APP} ===" | |
| end | |
| task :push do | |
| current_branch = `git rev-parse --abbrev-ref HEAD`.chomp | |
| current_branch += ":master" if current_branch != "master" | |
| puts "Deploying #{current_branch} to #{APP} ..." | |
| system("git push #{'-f' if APP == QA_APP} git@heroku.com:#{APP}.git #{current_branch}") | |
| end | |
| task :restart do | |
| puts 'Restarting app servers ...' | |
| puts `heroku restart --app #{APP}` | |
| end | |
| task :tag do | |
| release_name = "#{APP}_release-#{Time.now.utc.strftime("%Y%m%d%H%M%S")}" | |
| puts "Tagging release as '#{release_name}'" | |
| puts `git tag -a #{release_name} -m 'Tagged release'` | |
| puts `git push --tags git@heroku.com:#{APP}.git` | |
| end | |
| task :migrate do | |
| puts 'Running database migrations ...' | |
| puts `heroku run python manage.py migrate --app #{APP}` | |
| end | |
| task :collectstatic do | |
| puts 'Collecting static assets ...' | |
| puts `heroku run python manage.py collectstatic --noinput --app #{APP}` | |
| end | |
| task :off do | |
| puts 'Taking the app offline ...' | |
| puts `heroku maintenance:on --app #{APP}` | |
| puts `heroku ps:scale web=0 --app #{APP}` | |
| puts `heroku ps:scale celeryd=0 --app #{APP}` | |
| end | |
| task :on do | |
| puts 'Bringing the app online ...' | |
| puts `heroku ps:scale web=1 --app #{APP}` | |
| puts `heroku ps:scale celeryd=1 --app #{APP}` | |
| puts `heroku maintenance:off --app #{APP}` | |
| end | |
| task :rollback do | |
| puts 'Rolling back to last version ...' | |
| system("heroku rollback --app #{APP}") | |
| end | |
| task :transfer_prod_db_to_qa do | |
| puts 'Transfering prod DB to QA db ...' | |
| system("heroku pg:reset DATABASE --app #{QA_APP} --confirm #{QA_APP}") | |
| #reset is needed to completely drop db | |
| #restoring only overwrites tables within the restore file - newer tables are not untouched | |
| #which causes migration issues | |
| system("heroku pgbackups:restore DATABASE --app #{QA_APP} --confirm #{QA_APP} `heroku pgbackups:url --app #{PRODUCTION_APP}`") | |
| end | |
| end |
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