Add port and drop ssh:// from user side

plugin.sh

@@ -1,22 +1,24 @@
 #!/bin/sh
 
+PLUGIN_PORT=${PLUGIN_PORT:-22}
+PLUGIN_COMPOSE=${PLUGIN_COMPOSE:-compose.yml}
 
 load_deploy_key() {
   mkdir -p "$HOME/.ssh/"
-  ssh-keyscan "$PLUGIN_HOST" > "$HOME/.ssh/known_hosts"
+  ssh-keyscan -p "$PLUGIN_PORT" "$PLUGIN_HOST" > "$HOME/.ssh/known_hosts"
 
   eval `ssh-agent`
   echo "$PLUGIN_DEPLOY_KEY" | ssh-add -
 }
 
 run_stack_deploy() {
-  PLUGIN_COMPOSE=${PLUGIN_COMPOSE:-compose.yml}
-
   echo "--- start docker info ---"
   docker version
   echo "--- end docker info ---"
 
-  docker -H "$PLUGIN_HOST" stack deploy -c "$PLUGIN_COMPOSE" "$PLUGIN_STACK"
+  docker \
+    -H "ssh://$PLUGIN_HOST:$PLUGIN_PORT" \
+    stack deploy -c "$PLUGIN_COMPOSE" "$PLUGIN_STACK"
 }
 
 run_plugin() {