Add Docker credentials as environment variables in Drone CI configuration

.drone.yml

@@ -4,8 +4,6 @@ name: default
 
 node_selector:
   physical-node: dev1
-image_pull_secrets:
-  - docker-com
 
 trigger:
   branch:
@@ -32,6 +30,14 @@ steps:
       platforms:
         - linux/amd64
         - linux/arm64
+      build_args_from_env:
+        - DOCKER_USERNAME
+        - DOCKER_PASSWORD
+    environment:
+      DOCKER_USERNAME:
+        from_secret: dockerhub-username
+      DOCKER_PASSWORD:
+        from_secret: dockerhub-password
 
   - name: pull image to dockerhub
     image: docker.io/owncloudci/drone-docker-buildx:4