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rancher-auto-redeploy

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Go HTTP callback Rancher auto-redeploy server.

How it works

rancher-auto-redeploy listens for HTTP requests from Docker Hub Webhooks on a configurable address and port, secured using a random secret. Whenever there is a notification of a new image being pushed, it scans all services in the Rancher environment and fires an upgrade for all of those that match the published image and tag.

Usage

The easiest way to run rancher-auto-redeploy on your Rancher server is through its docker image. Run a new stack using the manastech/rancher-autoredeploy image, and configure it with the required credentials.

redeployer:
  ports:
  - 8091:8091
  environment:
    DOCKER_HUB_KEY: randomsecret
    RANCHER_API_KEY: your.api.key
    RANCHER_API_SECRET: your.api.secret
    RANCHER_HOST: your.racher.host
    RANCHER_PROJECT_ID: your.project.id
  labels:
    io.rancher.container.pull_image: always
  image: phedoreanu/rancher-auto-redeploy:latest

This will start an instance of the redeployer image, listening on port 8090 for requests from docker hub including the randomsecret key, and updating the services in project yourprojectid at your.rancher.server. Note that the bind port and address can be configured to the values that best match your setup.

The next step is to add a webhook to your docker hub repositories, so they will notify the redeployer container when there is a new version of an image. On the webhooks tab of your project, simply add an entry to http://your.rancher.node:8091/randomsecret.

Important:

  • set your.racher.host without /v1/... i.e. https://rancher.example.com.
  • remember to set io.rancher.container.pull_image label on your service to always, to ensure that the new image is actually pulled when upgrading. Future versions of this project may set this label automatically.