add sftp storage

compose.ssh.yml

@@ -5,12 +5,19 @@ services:
     environment:
       - SSH_KEY_FILE=/run/secrets/ssh_key
       - SSH_HOST_KEY
-      - SSH_HOST_KEY_DISABLE
     secrets:
       - source: ssh_key
         mode: 0400
+    configs:
+      - source: ssh_config
+        target: /root/.ssh/config
 
 secrets:
   ssh_key:
     external: true
     name: ${STACK_NAME}_ssh_key_${SECRET_SSH_KEY_VERSION}
+
+configs:
+  ssh_config:
+    name: ${STACK_NAME}_ssh_config_${SSH_CONFIG_VERSION}
+    file: ssh_config