init

.github/workflows/releaser.yaml

@@ -0,0 +1,42 @@
+name: releaser
+
+on:
+  push:
+    tags:
+      - v*.*.*
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-and-push-image:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

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+FROM golang:1.22.0-alpine AS builder
+
+ARG UPX_VERSION=4.2.1-r0
+
+RUN apk update && apk add --no-cache ca-certificates upx=$UPX_VERSION tzdata && update-ca-certificates
+
+WORKDIR /app
+
+COPY go.mod go.sum /app/
+RUN go mod download
+
+RUN adduser \
+  --disabled-password \
+  --gecos "" \
+  --home "/" \
+  --shell "/sbin/nologin" \
+  --no-create-home \
+  --uid 64000 \
+  dnsupdater
+
+COPY . .
+RUN go build -buildvcs=false -tags netgo -trimpath -tags netgo -ldflags="-w -s" -o ./dnsupdater .
+
+RUN upx --best --lzma dnsupdater
+
+FROM scratch
+
+COPY --from=builder /etc/passwd /etc/passwd
+COPY --from=builder /etc/group /etc/group
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder --chown=dnsupdater:dnsupdater /app/dnsupdater /app/dnsupdater
+
+USER dnsupdater:dnsupdater
+
+ENTRYPOINT ["/app/dnsupdater"]

go.mod

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+module github.com/orkarstoft/dns-updater
+
+go 1.22.1
+
+require (
+	github.com/digitalocean/godo v1.109.0 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/go-querystring v1.1.0 // indirect
+	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
+	github.com/hashicorp/go-retryablehttp v0.7.4 // indirect
+	golang.org/x/net v0.17.0 // indirect
+	golang.org/x/oauth2 v0.0.0-20220411215720-9780585627b5 // indirect
+	golang.org/x/time v0.0.0-20220922220347-f3bd1da661af // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.28.0 // indirect
+)