docker - GitHub Action 过滤和组合标签

Question

我想实现仅使用特定标签提交检查运行的 GitHub 操作。

这是我当前的 yml

name: Docker Image CI

on:
  push:
    branches:
      - 'master'
    tags:
      - 'v*'

jobs:
  push_to_registry:
    name: Push Docker image to Docker Hub
    runs-on: ubuntu-latest
    steps:
      - name: Check out the repo
        uses: actions/checkout@v2
      - name: Log in to Docker Hub
        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
        with:
          images: xx/xx
      - name: Build and push Docker image
        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
        with:
          context: ./aspnet-core/
          file: ./aspnet-core/Dockerfile
          push: true
          tags: server.${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

但是，每次主提交都会运行该操作，我想用类似的东西更新标签server.${{ steps.meta.outputs.tags }}，它会抛出错误。如果我只使用${{ steps.meta.outputs.tags }}，错误就消失了。

但是，我想实现自动标记 docker 图像server.v1.0.1，它server是硬编码并且v1.0.1来自提交标记。