stevepacker/git repository overview

⁠Git in Docker

This container is specifically to clone and update a git repo. It is based on the minimalist Alpine Linux⁠, and installs:

• git
• openssh (to clone via SSH)
• openssl (to clone via HTTPS)

The intention is to be able to use this to create a data container, and other containers can subsequently mount /app via --volumes-from.

⁠Examples

• docker run --name=app stevepacker/git clone [email protected]:you/it.git will clone the repo into /app
• docker run --volumes-from=app stevepacker/git pull will change into /app and pull the latest code for whatever branch is currently checked out
• docker run --volumes-from=app stevepacker/git checkout 1.1.0 will change into /app, fetch the latest from origin, checkout tag 1.1.0, and pull the latest code
• docker run --rm -it stevepacker/git -- sh getting access to the shell
• docker run --rm -it stevepacker/git -- whoami run any arbitrary linux command

⁠Non-privileged User: app

This repo clones the files under a non-privileged user "app" with UID=1000

⁠Volumes

• /app is where the repo is cloned to.
• /home/app/.ssh/ may be an interesting directory for you if you'd like to inject an OpenSSH private key to help you clone a private repo over SSH.

⁠Environment Variables

• GIT_SSH_COMMAND="ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no" is pre-configured to allow a clone over SSH to succeed without host key checking.
  For the security-minded, override this ENV variable and inject the proper file into /home/app/.ssh/known_hosts
• GIT_BRANCH="master" is pre-configured. If you'd rather checkout a different tag or branch, change this accordingly.