add staging build

.drone.yml

@@ -21,4 +21,30 @@ steps:
     branch:
       - main
     event:
-      - push
+      - push
+- name: docker-build
+  image: thegeeklab/drone-docker-buildx
+  privileged: true
+  settings:
+    username:
+      from_secret: DOCKER_USERNAME
+    password:
+      from_secret: DOCKER_PASSWORD
+    repo: yolokube/country-geo-locations
+    tags:
+      - latest
+      - ${DRONE_BUILD_NUMBER}
+    platforms:
+      - linux/arm64
+      - linux/amd64
+    dry_run: true
+  when:
+    branch:
+      exclude:
+        - main
+    event:
+      - push
+when:
+  event:
+    exclude:
+      - pull_request