Initial work on Github Actions workflow

Author: spantaleev

.github/workflows/workflow.yml

@@ -0,0 +1,51 @@
+name: CI (main and tags)
+on:
+  push:
+    branches: [ "main", "gh-actions" ]
+    tags: [ "v*" ]
+permissions:
+  checks: write
+  contents: write
+  packages: write
+  pull-requests: read
+jobs:
+  lint-test:
+    name: Lint
+    runs-on: ubuntu-latest
+    if: ${{ !startsWith(github.ref, 'refs/tags/') }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+      - name: lint
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: latest
+
+  build-publish:
+    name: Build and Publish
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to ghcr.io
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: |
+            ghcr.io/${{ github.repository }}
+          tags: |
+            type=raw,value=latest,enable=${{ github.ref_name == 'gh-actions' }}
+            type=semver,pattern={{raw}}
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}