Update README.md

drone.yml

@@ -0,0 +1,51 @@
+kind: pipeline
+type: docker
+name: build-and-push-multiarch
+
+steps:
+  - name: build-amd64
+    image: docker:26
+    privileged: true
+    environment:
+      HARBOR_USER:
+        from_secret: harbor_user
+      HARBOR_PASS:
+        from_secret: harbor_pass
+    commands:
+      - docker login harbor.example.com -u "$HARBOR_USER" -p "$HARBOR_PASS"
+      - docker buildx create --use
+      - docker buildx build \
+          --platform linux/amd64 \
+          -t harbor.example.com/myproj/portainer-agent-tailscale:amd64 \
+          --push .
+
+  - name: build-arm64
+    image: docker:26
+    privileged: true
+    environment:
+      HARBOR_USER:
+        from_secret: harbor_user
+      HARBOR_PASS:
+        from_secret: harbor_pass
+    commands:
+      - docker login harbor.example.com -u "$HARBOR_USER" -p "$HARBOR_PASS"
+      - docker buildx create --use
+      - docker buildx build \
+          --platform linux/arm64 \
+          -t harbor.example.com/myproj/portainer-agent-tailscale:arm64 \
+          --push .
+
+  - name: create-manifest
+    image: docker:26
+    environment:
+      HARBOR_USER:
+        from_secret: harbor_user
+      HARBOR_PASS:
+        from_secret: harbor_pass
+    commands:
+      - docker login harbor.example.com -u "$HARBOR_USER" -p "$HARBOR_PASS"
+      - docker manifest create harbor.example.com/myproj/portainer-agent-tailscale:latest \
+          --amend harbor.example.com/myproj/portainer-agent-tailscale:amd64 \
+          --amend harbor.example.com/myproj/portainer-agent-tailscale:arm64
+      - docker manifest push harbor.example.com/myproj/portainer-agent-tailscale:latest
+