Restored trigger.

.drone.yml

@@ -7,6 +7,7 @@ environment:
   DOCKER_CLI_EXPERIMENTAL: enabled
 
 platform:
+  os: linux
   arch: amd64
 
 services:
@@ -58,6 +59,8 @@ steps:
           --platform linux/amd64,linux/arm64 \
           --output=type=image,push=true \
           --progress tty \
+          --build-arg TAG=$DRONE_TAG
+          -t $REGISTRY_HOST/$IMAGE:$DRONE_TAG
           -t $REGISTRY_HOST/$IMAGE:latest \
           .
     volumes:
@@ -71,6 +74,6 @@ steps:
       REGISTRY_PASS:
         from_secret: registry_password
 
-#trigger:
-#  event:
-#    - tag
+trigger:
+  event:
+    - tag