I wanted to use the GitHub Container Registry to host an image for me and had some issues setting things up. To save me some time the next time I need this, and hopefully for someone else as well, I wanted to document how this process works.
During the beta, the container registry will be free to use. Open-source and public repositories are always entirely free to use, but private repositories will fall under the standard billing rates for GitHub Packages after the beta is over. The free tier of that includes 500 MB of storage and 1 GB of transfer every month.
Currently, the registry is in Beta, so you’ll need to enable the beta feature on your profile or on the organization level you want to use it on. To do so, go to your profile (or organization) and go to
Feature preview where you can toggle the feature. You’ll notice a new ‘Packages’ tab on you profile page as well.
Currently the only way to authenticate with GitHub Container Registry is to use a GitHub Personal Access Token (PAT). GitHub already knows this is an issue because the PAT can be used in the entire account it is created and will change that later.
For now the advisory is to create a specific PAT with only rights to the registry and use that.
These are the scopes you need to enable for the PAT:
If you want to delete the packages, also use this scope:
To push a new image from a workflow, use the complete example below.
The steps used are as follows:
docker buildstep where I am tagging the image with the tag I want to push to the registry ``` yaml
Authenticate with the GitHub Container Registry
Using the recommended setup from GitHub) for safety
5. The normal `docker push` step to push the container ``` yaml - name: push to GitHub Container Registry run: docker push ghcr.io/<<ACCOUNT NAME>>/<<IMAGE NAME>>:<<VERSION>>
name: Build and Push Docker container on: push: branches: - main jobs: build-and-push: runs-on: ubuntu-latest steps: - uses: actions/checkout@v1 - name: Build the Docker image run: docker build -t ghcr.io/<<ACCOUNT NAME>>/<<IMAGE NAME>>:<<VERSION>> . - name: Setup GitHub Container Registry run: echo "$" | docker login https://ghcr.io -u $ --password-stdin - name: push to GitHub Container Registry run: docker push ghcr.io/<<ACCOUNT NAME>>/<<IMAGE NAME>>:<<VERSION>>
Do note that I am using
secrets.GH_PAT to inject the PAT token I’m using into the workflow. You cannot use
GITHUB as a prefix for the secret name, so you need to change that. The secrets user interface doesn’t tell you about that in a great way, which I have sent GitHub feedback on through the GitHub Community.
By default the images are kept behind a login, so if you want to make the image publicly available you need to do that for each package.
To use the image behind the login, you’ll need to authenticate with the registry first:
echo "$env:GH_PAT" | docker login https://ghcr.io -u USERNAME --password-stdin
To change this setting: go to the package and to its settings:
And make the image publicly available: