Added docker image

.github/workflows/build.yaml

@@ -25,7 +25,7 @@ jobs:
 
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.x
+          go-version: 1.23
 
       - name: Run tests
         run: |-
@@ -49,7 +49,7 @@ jobs:
 
       - uses: actions/setup-go@v3
         with:
-          go-version: 1.x
+          go-version: 1.23
 
       - name: Prepare environment
         run: |-

.github/workflows/docker.yaml

@@ -0,0 +1,53 @@
+name: Docker
+
+on:
+  push:
+    tags:
+      - 'v*'
+    branches:
+      - 'master'
+
+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: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64,linux/386,linux/arm/v7
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          build-args: "VERSION=${GITHUB_REF##*/}"

CHANGELOG.md

@@ -11,9 +11,15 @@ adheres to [Semantic Versioning][semver].
 
 ## [Unreleased]
 
+### Added
+
+* Added [Docker image][dockerimage].
+
+[dockerimage]: https://github.com/ameshkov/godnsbench/pkgs/container/godnsbench
+
 ### Changed
 
-* Updated dependencies
+* Updated dependencies.
 
 [unreleased]: https://github.com/ameshkov/godnsbench/compare/v1.8.1...HEAD
 

Dockerfile

@@ -0,0 +1,33 @@
+# Step 1: Use the official Golang image as the build environment.
+# This image includes all the tools needed to compile Go applications.
+FROM golang:1.23 as builder
+
+# Version will be passed as a part of the build.
+ARG VERSION=dev
+
+# Set the Current Working Directory inside the container.
+WORKDIR /app
+
+# Copy the local package files to the container's workspace.
+COPY . .
+
+# Build the Go app for a Linux system.
+RUN VERSION=${VERSION} make build
+
+# Step 2: Use a builder image to get the latest certificates.
+FROM alpine:latest as certs
+
+# Download the latest CA certificates
+RUN apk --update add ca-certificates
+
+# Step 3: Use a Docker multi-stage build to create a lean production image.
+# Start from a scratch (empty) image to keep the image size small.
+FROM scratch
+
+# Copy the binary from the builder stage to the production image.
+COPY --from=builder /app/godnsbench /
+
+# Copy the CA certificates from the certs image.
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+
+ENTRYPOINT ["/godnsbench"]

Makefile

@@ -16,7 +16,7 @@ endif
 default: build
 
 build: clean
-	go build -ldflags "-X main.VersionString=$(VERSION)"
+	CGO_ENABLED=0 go build -ldflags "-X main.VersionString=$(VERSION)"
 
 release: check-env-release
 	mkdir -p $(BUILDDIR)

README.md

@@ -3,20 +3,29 @@
 
 # godnsbench
 
-A very simple DNS benchmarking tool based on [dnsproxy](https://github.com/AdguardTeam/dnsproxy).
+A very simple DNS benchmarking tool based on [dnsproxy][dnsproxy].
+
+[dnsproxy]: https://github.com/AdguardTeam/dnsproxy
 
 ## How to install
 
 * Using homebrew:
-    ```
+    ```shell
     brew install ameshkov/tap/godnsbench
     ```
 * From source:
-    ```
+    ```shell
     go install github.com/ameshkov/godnsbench@latest
     ```
-* You can get a binary from the [releases page](https://github.com/ameshkov/godnsbench/releases).
+* You can use [a Docker image][dockerimage]:
+    ```shell
+    docker run --rm ghcr.io/ameshkov/godnsbench --help
+    ```
+* You can get a binary from the [releases page][releases].
+
+[dockerimage]: https://github.com/ameshkov/godnsbench/pkgs/container/godnsbench
 
+[releases]: https://github.com/ameshkov/godnsbench/releases
 
 ## Usage
 
@@ -44,29 +53,34 @@ Help Options:
 ## Examples
 
 10 connections, 1000 queries to Google DNS using DNS-over-TLS:
+
 ```shell
 godnsbench -a tls://dns.google -p 10 -c 1000
 ```
 
 10 connections, 1000 queries to Google DNS using DNS-over-HTTPS with rate limit
 not higher than 10 queries per second:
+
 ```shell
 godnsbench -a https://dns.google/dns-query -p 10 -c 1000 -r 10
 ```
 
 10 connections, 1000 queries for `example.net` to Google DNS using DNS-over-TLS:
+
 ```shell
 godnsbench -a https://dns.google/dns-query -p 10 -c 1000 -q example.net
 ```
 
 10 connections, 1000 queries for `example.net` with timeout 1 second to
 AdGuard DNS using DNS-over-QUIC:
+
 ```shell
 godnsbench -a quic://dns.adguard.com -p 10 -c 1000 -t 1 -q example.net
 ```
 
 10 connections, 1000 queries for random subdomains of `example.net` with
 timeout 1 second to Google DNS using DNS-over-TLS:
+
 ```shell
 godnsbench -a tls://dns.google -p 10 -c 1000 -t 1 -q {random}.example.net
 ```