Update .drone.yml

.drone.yml

@@ -5,14 +5,16 @@ name: default
 steps:
   - name: debug registry secrets
     image: alpine
-    secrets: [ docker_username, docker_password ]
+    secrets: [ docker_username, docker_password, test ]
     environment:
       USERNAME:
         from_secret: docker_username
       PASSWORD:
         from_secret: docker_password
     commands:
-      - echo ${test}
+      - echo ${TEST}
+      - echo $TEST
+      - echo ${USERNAME}
       - echo "${docker_password}"
 
   - name: build and push flappy image