add image builder

.github/workflows/build.yml

@@ -0,0 +1,62 @@
+name: Build Exporter
+
+on:
+  push:
+    tags: ['v*']
+  pull_request:
+  workflow_dispatch:
+    inputs:
+      push:
+        description: 'Push'
+        required: false
+        type: boolean
+        default: true
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: sofe
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+    steps:
+    - uses: actions/checkout@v4
+
+    - uses: docker/setup-qemu-action@v3
+
+    - uses: docker/setup-buildx-action@v3
+
+    - name: Login to GHCR
+      uses: docker/login-action@v3
+      with:
+        registry: ${{ env.REGISTRY }}
+        username: ${{ github.repository_owner }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - uses: docker/metadata-action@v5
+      id: meta
+      with:
+        images: ${{ env.REGISTRY }}/${{ github.repository_owner }}/${{ env.IMAGE_NAME }}
+        tags: |
+          type=semver,pattern={{version}}
+          type=semver,pattern={{major}}.{{minor}}
+          type=semver,pattern={{major}}
+          type=ref,event=tag
+          type=ref,event=pr
+
+    - name: Build and push image
+      uses: docker/build-push-action@v5
+      with:
+        push: ${{ inputs.push != 'false' }} # is null if trigger != workflow_dispatch
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+        annotations: ${{ steps.meta.outputs.annotations }}
+        platforms: linux/amd64,linux/arm64
+        cache-from: |
+          type=gha
+          type=gha,scope=main
+        cache-to: type=gha,mode=max
+        provenance: false