Add Github Actions workflow

.github/workflows/evryfs-tag.yml

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+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the action will run. Triggers the workflow on push or pull request
+# events but only for the master branch
+on:
+  push:
+    tags:
+      - v*-evryfs
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+    - uses: actions/checkout@v2
+      with:
+        submodules: true
+
+    # Runs a single command using the runners shell
+    - name: Build builder image
+      run: make -C docker/builder image
+
+    # Runs a set of commands using the runners shell
+    - name: Build ClickHouse
+      run: make -C docker/builder build
+
+    - name: Docker Login
+      run: echo "$GITHUB_TOKEN" | docker login -u "$GITHUB_ACTOR" --password-stdin docker.pkg.github.com
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Tag and Push Image
+      run: |
+        tag=${GITHUB_REF##*/}
+        final_repo=docker.pkg.github.com/${{ github.repository }}/clickhouse-server:${tag}
+        docker tag yandex/clickhouse-server $final_repo
+        docker push $final_repo
+