Introduction to Continuous Deployment
CircleCI enables you to automatically deploy after green builds. We have customers deploying to PaaS’s such as Heroku, Engine Yard, Google App Engine and Bluemix, hosted cloud servers (like EC2 and Rackspace), and to private and colo servers—even behind firewalls. Some use tools like Capistrano, Fabric, and Paver.
However you want to deploy your code, CircleCI makes Continuous Deployment easy.
Tell CircleCI about your deployment requirements in the
section of your circle.yml file.
Within this section, you can can define custom deployment steps for each
branch, directing CircleCI to use specific deployment tools or custom scripts.
Deployment commands are triggered only after a successful build.
The following example will run the
script when the tests pass on the master branch and run the
deploy-to-staging.sh script when the tests pass on the staging branch.
deployment: production: # just a label; label names are completely up to you branch: master commands: - ./deploy-to-production.sh staging: branch: staging commands: - ./deploy-to-staging.sh
You can also use regular expressions in the
One example is to deploy branches matching a prefix, e.g. “feature-“:
deployment: development: branch: /feature-.*/ # branches starting with "feature-" commands: - ./deploy-feature-branch
You could also run deployments for everything but the master branch:
deployment: development: branch: /^(?!master$).*$/ # not the master branch commands: - ./deploy-development
Deploy over SSH
First you need to upload your SSH keys from your project’s
Project Settings > SSH keys page in the CircleCI UI.
CircleCI will automatically add them to the
so they are available for forwarding.
You can list commands or include bash scripts for SSH deployment in the
You can also use tools such as Capistrano or Fabric when deploying to
private servers or to EC2, Rackspace, and other cloud hosting providers.
You can use your existing Capistrano recipes, for example:
deployment: production: branch: master commands: - bundle exec cap production deploy
Here’s an example using Fabric:
deployment: production: branch: master commands: - fab deploy
Deploy to a PaaS
CircleCI has customers deploying to Heroku, Engine Yard, Google App Engine, Elastic Beanstalk, Dot Cloud, Nodejistu and other PaaSes. We have detailed instructions on deployment to Heroku, Google App Engine and Bluemix.