fixes and improvements

docker-compose.yml

@@ -20,8 +20,6 @@ services:
       SMTP_USE_SSL: ${SMTP_USE_SSL:-false}
       SMTP_TIMEOUT: ${SMTP_TIMEOUT:-30}
       SSH_KNOWN_HOSTS_PATH: /app/backend/.cache/known_hosts
-    secrets:
-      - ssh_private_key
     volumes:
       - backend_cache:/app/backend/.cache
     restart: unless-stopped
@@ -80,10 +78,6 @@ services:
 volumes:
   backend_cache:
 
-secrets:
-  ssh_private_key:
-    file: ${SSH_KEY_HOST_PATH:?set SSH_KEY_HOST_PATH}
-
 networks:
   web:
     external: true