feat: pass private key as env variable SSH_KEY

This reverts commit 5a2cab497c.

ssh_router.sh

@@ -118,7 +118,6 @@ start_container_if_needed() {
   if ! podman container exists "$WORKSPACE"; then
     log INFO "Creating container '$WORKSPACE'"
     generate_gitconfig "$PERSON"
-    read -r -d '' key <"$HOME"/secrets/"$WORKSPACE"/id_ed25519
     podman run -dit \
       --name "$WORKSPACE" \
       --userns=keep-id:uid=1000,gid=1000 \
@@ -126,13 +125,14 @@ start_container_if_needed() {
       --user "$DEV_USER" \
       --hostname "$WORKSPACE" \
       --label auto-cleanup=true \
+      -e SSH_KEY="$(cat $HOME/secrets/$WORKSPACE/id_ed25519)" \
       -v "/mnt/private/workspaces-data/public/$WORKSPACE:/app/public" \
       -v "/mnt/private/workspaces-data/private/$WORKSPACE:/app/private" \
       -v "$HOME/secrets/$WORKSPACE/gitconfig:/home/$DEV_USER/.gitconfig:ro,Z" \
       -v "$HOME/secrets/$WORKSPACE/id_ed25519:/home/$DEV_USER/.ssh/id_ed25519:ro,Z" \
       -v "$HOME/secrets/$WORKSPACE/id_ed25519.pub:/home/$DEV_USER/.ssh/id_ed25519.pub:ro,Z" \
       --entrypoint "/home/$DEV_USER/start.sh" \
-      "$IMAGE" "$TMUX_SESSION" "$key"
+      "$IMAGE" "$TMUX_SESSION"
   elif ! podman inspect -f '{{.State.Running}}' "$WORKSPACE" | grep -q true; then
     log INFO "Starting existing container '$WORKSPACE'"
     podman start "$WORKSPACE" >/dev/null