• Auto-deploy your app from source on commit, while allowing you to run tests or perform other operations before.
• Auto-deploy your app from source and also update DockerHub / DigitalOcean Container Registry (DOCR) configuration in DigitalOcean App Spec and deploy application with updated container image.

• Get DigitalOcean Personal Access token by following this instructions.(skip this step if you already have DigitalOcean Personal Access Token)
• Declare DigitalOcean Personal Access Token as DIGITALOCEAN_ACCESS_TOKEN variable in the secrets of github repository.
• Create a GitHub Action workflow file and add this step below to it or add this to your existing action.

  - name: DigitalOcean App Platform deployment
    uses: digitalocean/app_action@v1.1.5
    with:
      app_name: my_DO_app
      token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}

• This step will trigger a deploy to your App on DigitalOcean App Platform

• Get DigitalOcean Personal Access token by following this instructions(skip this step if you already have DigitalOcean Personal Access Token)
• Declare DigitalOcean Personal Access Token as DIGITALOCEAN_ACCESS_TOKEN variable in the secrets of github repository.
• Add this step to update DigitalOcean Container Registry configuration of single or multiple component in app_spec

  - name: DigitalOcean App Platform deployment
    uses: digitalocean/app_action@v1.1.5 # replace this with current version from https://github.com/digitalocean/app_action/releases
    with:
      app_name: my_DO_app
      token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}
      images: '[
                {
                  "name": "sample-golang",
                   "image":{
                    "registry_type": "DOCR",
                    "repository": "add_sample",
                    "tag": "a5cae3e"
                  },
                },
                {
                  "name": "sample-add",
                  "image":{
                    "registry_type": "DOCKER_HUB",
                    "registry": "nginxdemos",
                    "repository": "hello",
                    "tag": "0.2"
                  },
              ]'

• DigitalOcean App Platform will now update your container image information in App Spec and then deploy your application.
• This step will trigger a DigitalOcean App Platform deployment of your app using the images specified.

Note: Always use unique tag names (i.e. v1.1.15 instead of latest or main) to push image to the DigitalOcean Container Registry. This will allow you to deploy your application without delay. ref

• app_name - Name of the app on App Platform.
• images - (optional)List of json objects (of type ImageSourceSpec, see Reference for App Specification) for providing information about name, registry type, repository, and tag of the image in .

  [{
    "name": " ", #component name
    "image":{ 
      "registry_type": "DOCKER_HUB", #Registry type, DOCR and DOCKER_HUB are supported
      "registry": "nginxdemos", # DockerHub only, the registry name
      "repository": "hello", # repository name
      "tag": "0.2" # tag name
    },
  }]

  • name - name of the component in App Spec
  • repository - name of the DOCR repository with the following format- registry.digitalocean.com//
  • tag - tag of the image provided while pushing to DOCR (by default latest tag is used). We suggest always use unique tag value)
• token - doctl authentication token (generate token by following this instructions

Update DigitalOcean container image configuration of single component in App Spec example

DigitalOcean App Platform Auto-deploy with same app spec. example

• App Platform Guided App Spec Declaration
• App Platform App Spec Blog
• App Platform App Spec Components

Because image manifests are cached in different regions, there may be a maximum delay of one hour between pushing to a tag that already exists in your registry and being able to pull the new image by tag. This may happen, for example, when using the :latest tag. To avoid the delay, use:

• Unique tags (other than :latest)
• SHA hash of Github commit
• SHA hash of the new manifest

• Install gomock with go install github.com/golang/mock/mockgen@v1.6.0
• go generate ./... to generate the mocks

This GitHub Action and associated scripts and documentation in this project are released under the MIT License.