Fix errors in auto-released docker images (#399)

.github/workflows/release.yml

@@ -26,8 +26,14 @@ jobs:
         with:
           gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
           passphrase: ${{ secrets.GPG_PASSPHRASE }}
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v6
+
         with:
           distribution: goreleaser
           version: latest

.goreleaser.yml

@@ -1,7 +1,7 @@
 builds:
   - binary: acme-dns
     env:
-      - CGO_ENABLED=1
+      - CGO_ENABLED=0
     goos:
       - linux
     goarch:
@@ -20,3 +20,16 @@ archives:
 signs:
   - artifacts: checksum
     args: ["--batch", "-u", "{{ .Env.GPG_FINGERPRINT }}", "--output", "${signature}", "--detach-sign", "${artifact}"]
+
+dockers:
+  - image_templates:
+    - "joohoi/acme-dns:{{ .Tag }}"
+    - "joohoi/acme-dns:latest"
+    dockerfile: Dockerfile.release
+    build_flag_templates:
+    - "--pull"
+    - "--label=org.opencontainers.image.created={{.Date}}"
+    - "--label=org.opencontainers.image.name={{.ProjectName}}"
+    - "--label=org.opencontainers.image.revision={{.FullCommit}}"
+    - "--label=org.opencontainers.image.version={{.Version}}"
+

Dockerfile

@@ -1,12 +1,12 @@
 FROM golang:alpine AS builder
 LABEL maintainer="joona@kuori.org"
 
-RUN apk add --update gcc musl-dev git
+RUN apk add --update git
 
 ENV GOPATH /tmp/buildcache
 RUN git clone https://github.com/joohoi/acme-dns /tmp/acme-dns
 WORKDIR /tmp/acme-dns
-RUN CGO_ENABLED=1 go build
+RUN CGO_ENABLED=0 go build
 
 FROM alpine:latest
 

Dockerfile.release

@@ -0,0 +1,12 @@
+FROM alpine:latest
+
+RUN apk --no-cache add ca-certificates && update-ca-certificates
+RUN mkdir -p /etc/acme-dns
+RUN mkdir -p /var/lib/acme-dns
+
+COPY acme-dns /usr/local/bin/acme-dns
+
+VOLUME ["/etc/acme-dns", "/var/lib/acme-dns"]
+ENTRYPOINT ["acme-dns"]
+EXPOSE 53 80 443
+EXPOSE 53/udp