Revert "feat: pass private key as env variable SSH_KEY"

This reverts commit 73f25ab8d2.

gitops_router.sh

@@ -160,6 +160,7 @@ update)
   containerfile) update 0 Containerfile . 500 ;;
   access) update 2 access.yml . 400 ;;
   authorized_keys) update 2 authorized_keys .ssh 400 ;;
+  secret_key) update 2 keys/"${args[1]}"/id_ed25519 secrets/"${args[1]}" 400 ;;
   podman_access)
     update 2 podman_access.keys . 400
     scp podman_access.keys mypodmanuser@alps:~/.ssh/authorized_keys

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 \
@@ -132,7 +131,7 @@ start_container_if_needed() {
       -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