feat: add docker build

.github/workflows/release.yml

@@ -16,7 +16,13 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.16
+          go-version: 1.17
+      - name: Docker Login
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v2
         with:

.goreleaser.yml

@@ -2,8 +2,7 @@ before:
   hooks:
     - go mod download
 builds:
-  -
-    env:
+  - env:
       - CGO_ENABLED=0
     goos:
       - linux
@@ -24,3 +23,23 @@ nfpms:
     formats:
       - deb
       - rpm
+dockers:
+  - image_templates: ["ghcr.io/emeraldonion/odohd:{{ .Version }}-amd64"]
+    dockerfile: Dockerfile
+    use: buildx
+    build_flag_templates:
+      - --platform=linux/amd64
+      - --label=org.opencontainers.image.title=odohd
+      - --label=org.opencontainers.image.description=Oblivious DNS over HTTPS Server
+      - --label=org.opencontainers.image.url=https://github.com/emeraldonion/odohd
+      - --label=org.opencontainers.image.source=https://github.com/emeraldonion/odohd
+      - --label=org.opencontainers.image.version={{ .Version }}
+      - --label=org.opencontainers.image.revision={{ .FullCommit }}
+      - --label=org.opencontainers.image.licenses=MIT
+docker_manifests:
+  - name_template: ghcr.io/emeraldonion/odohd:{{ .Version }}
+    image_templates:
+      - ghcr.io/emeraldonion/odohd:{{ .Version }}-amd64
+  - name_template: ghcr.io/emeraldonion/odohd:latest
+    image_templates:
+      - ghcr.io/emeraldonion/odohd:{{ .Version }}-amd64

Dockerfile

@@ -0,0 +1,3 @@
+FROM alpine
+COPY odohd /usr/bin/odohd
+ENTRYPOINT ["/usr/bin/odohd"]