How to Dockerize Go Apps Using Private GitLab Modules with SSH Authentication?

Dockerize Go Apps with Private GitLab Modules

When constructing your Go apps in a Docker container with private GitLab modules, it's crucial to set up SSH authentication effectively. Here's an improved approach that addresses issues with the referenced question:

Updated Dockerfile

To pull a private package from GitLab, modify the following lines in your Dockerfile:

# Allow private repo pull
RUN git config --global url."https://my-personal-access-token:[email protected]/".insteadOf "https://gitlab.com/"

SSH Configuration

Update the following commands to add your SSH key and configure Git to use SSH:

RUN mkdir ~/.ssh
RUN touch ~/.ssh/known_hosts
RUN ssh-keyscan -t rsa gitlab.com >> ~/.ssh/known_hosts

Build Command

Use Docker's experimental syntax and specify the --mount=type=ssh option to enable SSH mounting:

DOCKER_BUILDKIT=1 docker build --progress=plain --mount=type=ssh .

Debugging SSH Connection

To debug SSH connectivity issues, run the following command before the go build step:

RUN ssh -A -v -l git gitlab.com

AppArmor Troubleshooting

If you encounter access denied errors due to AppArmor, modify the docker apparmor profile /var/lib/snapd/apparmor/profiles/snap.docker.docker and add this line:

/run/user/<uid>/keyring/ssh rw,</uid>

where is the user ID that will run the docker build command.

Key Filename

Ensure that the SSH key used for authentication has a default name, such as id_rsa, or configure the Host entry in Docker's .ssh/config file to specify the custom key name.

By following these instructions, you should be able to build Go apps that utilize private modules from GitLab within a Docker container.

The above is the detailed content of How to Dockerize Go Apps Using Private GitLab Modules with SSH Authentication?. For more information, please follow other related articles on the PHP Chinese website!