chore: add CI

.github/workflows/docker.yml

@@ -0,0 +1,80 @@
+name: Docker
+
+on:
+  release:
+    types: [published]
+  pull_request:
+  push:
+    tags:
+      - "**"
+    branches:
+      - master
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: "lysand-org/versia-go"
+
+jobs:
+  docker:
+    name: Build Image
+    runs-on: ubuntu-22.04
+    permissions:
+      packages: write
+      contents: read
+    concurrency:
+      group: docker
+      cancel-in-progress: false
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Cache docker layers
+        uses: actions/cache@v4
+        id: cache
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+
+      - name: Gather Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+            type=semver,pattern={{version}}
+          labels: |
+            cache-from=type=local,src=/tmp/.buildx-cache
+            cache-to=type=local,dest=/tmp/.buildx-cache
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Get current commit
+        id: get_commit
+        run: echo ::set-output "name=hash::${GITHUB_SHA:0:7}"
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=local,src=/tmp/.buildx-cache
+          cache-to: type=local,dest=/tmp/.buildx-cache-new
+
+      - name: Move cache
+        run: |
+          rm -rf /tmp/.buildx-cache
+          mv /tmp/.buildx-cache-new /tmp/.buildx-cache