Public | Automated Build

Last pushed: 3 years ago
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Use Automated Builds on Docker Hub for easy Continuous Integration of Play Framework projects

The official Docker Hub provides an Automated Builds feature for consistent building of Docker images. Another possible use case for this service, which hasn't received as much attention, is Continuous Integration. Simply provide a Dockerfile for your project that runs tests during docker build. Docker Hub's integration with GitHub and Bitbucket will pick up new commits, run your tests, and generate new Docker images when tests are successful. Further, the service offers webhooks, which can be utilized to extend this use case into Continuous Deployment.

Example files

  • Dockerfile creates a suitable Java environment for Play Framework, then uses Typesafe Activator to test and build the project during image creation. The image ENTRYPOINT is set to run the optimized project so docker run will default to launching the Play project within the container. Testing and compilation are performed only once, during image creation, so all generated images are pre-certified and can be deployed and started without rerunning the tests

  • The remainder of the files in this repo provide an example Play Framework project that responds to the standard activator commands


  1. Copy Dockerfile into any Play Framework project that responds to the standard activator commands

  2. Update the ADD commands to include all project files needed for testing and running the app

  3. To test with a local image, run docker build --tag="myplayapp" .

  4. To start the local image, run docker run -i -t -P myplayapp

  5. To use Docker Hub for CI, push the project and its Dockerfile to GitHub or BitBucket and configure your automated build

  6. Consider using the webhooks feature to trigger deployments for successful builds

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