How to share ssh agent with a docker container

forward-ssh-agent-to-docker-container.md

You might want to ssh into a docker container and pull some remote repository which requires the SSH keys stored on the host machine. Edit your docker-compose file as follows:

1. Set the environment variable SSH_AUTH_SOCK to the socket being used by the agent.
2. Mount that agent in the container.

services:
  app:
    environment:
      - SSH_AUTH_SOCK=/ssh-agent
    volumes:
      - ${SSH_AUTH_SOCK}:/ssh-agent