docker-cwd SSH

[Notgnoshi]

I found a slightly better way

    # SSH wants a user with the `id -u` UID to exist in the container. Mounting this /etc/passwd
    # file is how we achieve this.
    #
    # Additionally, we set GIT_SSH_COMMAND to disable strict host key checking, so our build doesn't
    # interactively prompt us to accept source.raven.engineering's ssh fingerprint.
    local PASSWD=/tmp/user-passwd
    echo "user::$(id -u):$(id -g)::$HOME:" >"$PASSWD"

...

        --volume "$SSH_AUTH_SOCK:$SSH_AUTH_SOCK" \
        --volume "$PASSWD:/etc/passwd" \
        --env SSH_AUTH_SOCK="$SSH_AUTH_SOCK" \
        --env GIT_SSH_COMMAND="ssh -o StrictHostKeyChecking=no" \
        --user "$(id -u)":"$(id -g)" \