digitalocean / sample-golang-docr-github-action

Sample for uploading docr to one file

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Deploy a DigitalOcean App Platform app using GitHub Actions.

  • Auto-deploy your app from source on commit, while allowing you to run tests or perform other operations this action also allows you to update docr images in the DigitalOcean App Platform App Spec.

Example

Add your .do/app.yaml:

Note that you should not configure deploy_on_push: true for this workflow.

name: sample-dockerfile
services:
- dockerfile_path: Dockerfile
  github:
    branch: main
    deploy_on_push: true
    repo: digitalocean/sample-dockerfile
  name: sample-dockerfile

Create a .github/workflows/main.yml:

  • Push docker images to the DigitalOcean Container Registry by following the steps shown below:

Note: Below example uses git commit sha hash as the image tag which will help for instant deployment to DigitalOcean App Platform.

- name: Install doctl
  uses: digitalocean/action-doctl@v2
  with:
  token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}
- name: Generate GITHUB_SHA
  id: github-sha
  shell: bash
  run: |
    SHORT_SHA=$(echo $GITHUB_SHA | cut -c1-7)
    echo "::set-output name=sha::$SHORT_SHA"
- name: Publish Image to Digital Ocean Container Registry
  shell: bash
  run: |
    doctl registry login --expiry-seconds 600
    docker build . -t registry.digitalocean.com/sample-go/add_sample:${{steps.github-sha.outputs.sha}}
    docker push registry.digitalocean.com/sample-go/add_sample:${{steps.github-sha.outputs.sha}}

Note: Always use unique tag names to push image to the DigitalOcean Container Registry. This will allow you to deploy your application without delay. ref

How its using DigitalOcean App Platform App Actions?

This example is using DigitalOcean App Platform App Actions in the .github/workflows/main.yml file to auto-deploy your app.

- name: DigitalOcean App Platform deployment
  uses: digitalocean/app_action@main
  with:
    app_name: sample-golang
    token: ${{ secrets.DIGITALOCEAN_ACCESS_TOKEN }}
    images: '[{
                "name": "web",
                "repository": "registry.digitalocean.com/sample-go/add_sample",
                "tag": "${{steps.github-sha.outputs.sha}}"
              }
            ]'

Note for handling DigitalOcean Container Registry images:

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

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Sample for uploading docr to one file


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