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CircleCI Deployment Notifier

Sends deployment notifications based on deployments that occur on CircleCI.


  • Using CircleCI.
  • Using Github.
  • Using Slack for notifications.

You can also:

  • Deploy releases that are tagged using Github Releases.


Requires Ruby 2.0.0 or higher.

Add the following commands to your circle.yml deployment section:

gem install circleci_deployment_notifier
circleci_deployment_notify_slack -a "Application Name" -u ""

It's best to use environment variables for sensitive information list Slack webhook URLs.

So here's an example circle.yml deployment section that assumes you've set the environment variable DEPLOYMENT_SLACK_WEBHOOK_URL:

    branch: master
    - # TODO: something to deploy the application to staging
    - gem install circleci_deployment_notifier
    - circleci_deployment_notify_slack -a "Application Staging" -u $DEPLOYMENT_SLACK_WEBHOOK_URL
    tag: /v[0-9]+\.[0-9]+\.[0-9]+/
    owner: MyOrganization
    - # TODO: something to deploy the application to production
    - gem install circleci_deployment_notifier
    - circleci_deployment_notify_slack -a "Application Production" -u $DEPLOYMENT_SLACK_WEBHOOK_URL

That production section is designed to build and deploy for tags like "v1.0.0" that are created in the fork of the repo that belongs to MyOrganization. (So tags created in forks do not cause a build or deployment.) See CircleCI docs for more info.


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at


Why is this project built on Travis when it's specifically for CircleCI?

CircleCI does not support builds against multiple versions of Ruby, so for a tool like this, Travis is a better fit. This gem is for use by applications, where it will be built on a single version of Ruby and deployed to staging and/or production infrastructure owned by the team.


The gem is available as open source under the terms of the MIT License.