action: add docker build CI and update openssl for docker image.

.github/workflows/docker.yml

@@ -0,0 +1,35 @@
+name: Publish Docker Image
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'new image tag(e.g. v1.1.0)'
+        required: true
+        default: 'latest'
+
+concurrency: 
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+   docker:
+     runs-on: ubuntu-latest
+     steps:
+       - name: Checkout repository
+         uses: actions/checkout@v3
+       - name: Set up QEMU
+         uses: docker/setup-qemu-action@v2
+       - name: Set up Docker Buildx
+         uses: docker/setup-buildx-action@v2
+       - name: Login to DockerHub
+         uses: docker/login-action@v2
+         with:
+           username: ${{ secrets.DOCKERHUB_USERNAME }}
+           password: ${{ secrets.DOCKERHUB_TOKEN }}
+       - name: Build and push
+         uses: docker/build-push-action@v3
+         with:
+           platforms: linux/amd64,linux/arm64
+           push: true
+           tags: ${{vars.DOCKERHUB_REPO}}:${{ github.event.inputs.version }}

Dockerfile

@@ -2,7 +2,7 @@ FROM ubuntu:latest as smartdns-builder
 LABEL previous-stage=smartdns-builder
 
 # prepare builder
-ARG OPENSSL_VER=1.1.1f
+ARG OPENSSL_VER=3.0.10
 RUN apt update && \
     apt install -y perl curl make musl-tools musl-dev && \
     ln -s /usr/include/linux /usr/include/$(uname -m)-linux-musl && \
@@ -27,7 +27,7 @@ COPY . /build/smartdns/
 RUN cd /build/smartdns && \
     export CC=musl-gcc && \
     export CFLAGS="-I /opt/build/include" && \
-    export LDFLAGS="-L /opt/build/lib" && \
+    export LDFLAGS="-L /opt/build/lib -L /opt/build/lib64" && \
     sh ./package/build-pkg.sh --platform linux --arch `dpkg --print-architecture` --static && \
     \
     ( cd package && tar -xvf *.tar.gz && chmod a+x smartdns/etc/init.d/smartdns ) && \
@@ -37,9 +37,9 @@ RUN cd /build/smartdns && \
     cp package/smartdns/usr /release/ -a && \
     cd / && rm -rf /build
 
-FROM busybox:latest
+FROM busybox:stable-musl
 COPY --from=smartdns-builder /release/ /
 EXPOSE 53/udp
-VOLUME "/etc/smartdns/"
+VOLUME ["/etc/smartdns/"]
 
 CMD ["/usr/sbin/smartdns", "-f", "-x"]