add credentials for dockerhub

.drone.yml

@@ -3,22 +3,26 @@ kind: pipeline
 name: build-and-upload
 
 steps:
-- name: build-and-push
+  - name: build-and-push
-  image: plugins/docker
+    image: plugins/docker
-  environment:
+    environment:
-    DOCKER_BUILDKIT: 1
+      DOCKER_BUILDKIT: 1
-  network_mode: bridge
+    network_mode: bridge
-  settings:
+    settings:
-    repo: sneak/builder
+      repo: sneak/builder
-    custom_dns: [ 116.202.204.30 ]
+      custom_dns: [116.202.204.30]
-    tags:
+      tags:
-      - ${DRONE_COMMIT_SHA}
+        - ${DRONE_COMMIT_SHA}
-      - ${DRONE_BRANCH}
+        - ${DRONE_BRANCH}
-      - latest
+        - latest
-- name: notify
+      username:
-  image: plugins/slack
+        from_secret: DOCKER_USERNAME
-  settings:
+      password:
-    webhook:
+        from_secret: DOCKER_TOKEN
-      from_secret: SLACK_WEBHOOK_URL
+  - name: notify
-  when:
+    image: plugins/slack
-    event: pull_request
+    settings:
+      webhook:
+        from_secret: SLACK_WEBHOOK_URL
+    when:
+      event: pull_request