image build on tags

Author: resmo

.github/workflows/image.yml

@@ -13,6 +13,8 @@ on:
   push:
     branches:
       - master
+    tags:
+      - "v*"
 
 env:
   REGISTRY: ghcr.io
@@ -41,6 +43,11 @@ jobs:
         uses: docker/metadata-action@57396166ad8aefe6098280995947635806a0e6ea
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
 
       - name: Build and push Docker image
         uses: docker/build-push-action@c56af957549030174b10d6867f20e78cfd7debc5

README.md

@@ -33,7 +33,7 @@ See https://github.com/resmo/nip.io/blob/master/src/backend.conf.example for an
 #### Run the Container from ghcr:
 
 ```bash
-docker run -d -p 0.0.0.0:53:53/tcp -p 0.0.0.0:53:53/udp -v /data/backend.conf:/usr/local/bin/backend.conf --name nip.io  ghcr.io/resmo/nip-io
+docker run -d -p 0.0.0.0:53:53/tcp -p 0.0.0.0:53:53/udp -v /data/backend.conf:/usr/local/bin/backend.conf --name nip.io  ghcr.io/resmo/nip-io:master
 ```
 
 #### Or Build the Image: