Hello,
j'ai fait une petite modification d'un github pour avoir mon image de 2Mo d'alpine avec serveur ssh (pratique pour des images docker toutes petites)
le README:
Copy the id_rsa.pub from your workstation to your dockerhost.
On the dockerhost create a volume to keep your authorized_keys.
tar cv --files-from /dev/null | docker import - scratch
docker create -v /root/.ssh --name ssh-container scratch /bin/true
docker cp id_rsa.pub ssh-container:/root/.ssh/authorized_keys
For ssh key forwarding use ssh-agent on your workstation.
ssh-agent
ssh-add id_rsa
Then the start sshd service on the dockerhost (check the tags for alpine versions)
docker run -p 4848:22 --name alpinearmhf-sshd --hostname alpinearmhf-sshd --volumes-from ssh-container -d alpinearmhf-sshd
docker run -p 4848:22 --name alpinearmhf-sshd --hostname alpinearmhf-sshd -d alpinearmhf-sshd
docker exec -ti docker-sshd passwd
ssh to your new docker environment, with an agent -i option is not needed
ssh -p 4848 -i id_rsa root@<dockerhost>