How to Bake Credential into Docker Image for Git

How to bake credential into docker image for git?

If your git provider supports ssh with public keys, I think the easiest way would be to switch to them. You would also not have to copy around your password.

You need to:

• add ssh client to your docker image
• generate an ssh key and copy it to the image. The ssh-agent part is not needed
• register the key to the provider

Using SSH keys inside docker container

Turns out when using Ubuntu, the ssh_config isn't correct. You need to add

RUN  echo "    IdentityFile ~/.ssh/id_rsa" >> /etc/ssh/ssh_config

to your Dockerfile in order to get it to recognize your ssh key.

Clone private git repo with dockerfile

My key was password protected which was causing the problem, a working file is now listed below (for help of future googlers)

FROM ubuntu

MAINTAINER Luke Crooks "luke@pumalo.org"

# Update aptitude with new repo
RUN apt-get update

# Install software 
RUN apt-get install -y git
# Make ssh dir
RUN mkdir /root/.ssh/

# Copy over private key, and set permissions
# Warning! Anyone who gets their hands on this image will be able
# to retrieve this private key file from the corresponding image layer
ADD id_rsa /root/.ssh/id_rsa

# Create known_hosts
RUN touch /root/.ssh/known_hosts
# Add bitbuckets key
RUN ssh-keyscan bitbucket.org >> /root/.ssh/known_hosts

# Clone the conf files into the docker container
RUN git clone git@bitbucket.org:User/repo.git

---

Related Topics