sshd

Adding a "real" sshd server to web container

Although most people do fine with ddev ssh and ddev exec, they don't actually use ssh, but are wrappers on docker exec. In the vast majority of cases, you don't need anything like this, but if you have an application that needs to actually use the real ssh protocols to access the web container, this recipe is for you.

1. Copy config.sshd.yaml and docker-compose.sshd.yaml into your project's .ddev folder. (Note that you can also incorporate the contents of config.ssshd.yaml into your config.yaml.)
2. Authorize your ssh client to access the web container's ssh server by adding a global ~/.ddev/homeadditions/.ssh/authorized_keys, which will be copied into the ~/.ssh directory in the web container. The easiest way to do this, assuming your ssh pubkey is ~/.ssh/id_rsa.pub, is

   mkdir -p ~/.ddev/homeadditions/.ssh
   cp ~/.ssh/id_rsa.pub ~/.ddev/homeadditions/.ssh/authorized_keys
   

   (You can also create the authorized_keys file in the project .ddev/homeadditions/.ssh folder on a project by project basis but this command takes care of authorized_keys for all of your projects at once and can be executed from any directory.)
3. ddev restart
4. Access the web container with ssh -p 2222 -o StrictHostKeyChecking=no localhost

(The StrictHostKeyChecking=no is required because every time you restart the container it comes up with a new "host" identity.)