dhcp: add health check server for NLB

Author: sorah

.github/workflows/docker-kea.jsonnet

@@ -20,6 +20,26 @@
             sudo docker run --rm --privileged multiarch/qemu-user-static --reset --persistent yes --credential yes
           |||,
         },
+
+
+        {
+          uses: 'actions-rs/toolchain@v1',
+          with: {
+            profile: 'minimal',
+            toolchain: 'stable',
+            target: 'aarch64-unknown-linux-gnu',
+          },
+        },
+        {
+          uses: 'actions-rs/cargo@v1',
+          with: {
+            'use-cross': true,
+            command: 'build',
+            args: '--release --locked --manifest-path docker/kea/healthz/Cargo.toml --target aarch64-unknown-linux-gnu',
+          },
+        },
+
+
         {
           uses: 'docker/setup-buildx-action@v2',
           with: { install: true },

.github/workflows/docker-kea.yml

@@ -15,6 +15,22 @@
                "name": "setup docker multiarch",
                "run": "mkdir -p ~/.docker\nsudo docker run --rm --privileged multiarch/qemu-user-static --reset --persistent yes --credential yes\n"
             },
+            {
+               "uses": "actions-rs/toolchain@v1",
+               "with": {
+                  "profile": "minimal",
+                  "target": "aarch64-unknown-linux-gnu",
+                  "toolchain": "stable"
+               }
+            },
+            {
+               "uses": "actions-rs/cargo@v1",
+               "with": {
+                  "args": "--release --locked --manifest-path docker/kea/healthz/Cargo.toml --target aarch64-unknown-linux-gnu",
+                  "command": "build",
+                  "use-cross": true
+               }
+            },
             {
                "uses": "docker/setup-buildx-action@v2",
                "with": {

kea/Dockerfile

@@ -27,11 +27,13 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 RUN curl -Ssf -o /tmp/stork.deb 'https://sorah-pkg.s3.dualstack.ap-northeast-1.amazonaws.com/misc/isc-stork-agent_1.5.0.220824140136_arm64.deb' \
  && ( echo '1e8b67f2afe4404ea3091cbef14e93a23186633a3d571f9cb141d162350d2fe6235d7679e89bed5c2235433f203d706d /tmp/stork.deb' | sha384sum -c --strict ) \
  && dpkg -i /tmp/stork.deb && rm /tmp/stork.deb
+COPY healthz/target/aarch64-unknown-linux-gnu/release/healthz /app/healthzd
 
 COPY run.sh /app/run.sh
 COPY choose_dhcp_server_id.rb /app/choose_dhcp_server_id.rb
 COPY --from=config /app/kea-ctrl-agent.json /app/kea-ctrl-agent.json
 
 RUN kea-ctrl-agent -t /app/kea-ctrl-agent.json 
 
+
 CMD /app/run.sh

kea/healthz/.gitignore

@@ -0,0 +1 @@
+target/