proxy: add docker image with mtr

.github/workflows/release.yaml

@@ -67,7 +67,7 @@ jobs:
         with:
           context: '{{defaultContext}}:frontend'
           platforms: linux/amd64,linux/arm64,linux/386,linux/arm/v7
-          push: true
+          push: true{context}/Dockerfile
           tags: |
             xddxdd/bird-lg-go:latest
             xddxdd/bird-lg-go:${{ github.event.release.tag_name }}
@@ -85,3 +85,16 @@ jobs:
             xddxdd/bird-lgproxy-go:${{ github.event.release.tag_name }}
             ghcr.io/xddxdd/bird-lg-go:proxy
             ghcr.io/xddxdd/bird-lg-go:proxy-${{ github.event.release.tag_name }}
+
+      - name: Build proxy docker image
+        uses: docker/build-push-action@v4
+        with:
+          context: '{{defaultContext}}:proxy'
+          file: '{context}/Dockerfile.mtr'
+          platforms: linux/amd64,linux/arm64,linux/386,linux/arm/v7
+          push: true
+          tags: |
+            xddxdd/bird-lgproxy-go:latest-mtr
+            xddxdd/bird-lgproxy-go:${{ github.event.release.tag_name }}-mtr
+            ghcr.io/xddxdd/bird-lg-go:proxy-mtr
+            ghcr.io/xddxdd/bird-lg-go:proxy-${{ github.event.release.tag_name }}-mtr

.gitignore

@@ -20,7 +20,3 @@ proxy/proxy
 
 # don't include generated bindata file
 frontend/bindata.go
-
-# don't include generated Dockerfiles
-frontend/Dockerfile.*
-proxy/Dockerfile.*

proxy/Dockerfile.mtr

@@ -0,0 +1,31 @@
+FROM golang AS step_0
+
+ENV CGO_ENABLED=0 GO111MODULE=on
+WORKDIR /root
+COPY . .
+RUN go build -ldflags "-w -s" -o /proxy
+
+################################################################################
+
+FROM alpine:edge AS step_1
+
+WORKDIR /root
+RUN apk add --no-cache build-base linux-headers
+
+RUN wget https://www.bitwizard.nl/mtr/files/mtr-0.94.tar.gz \
+    -O mtr-0.94.tar.gz
+RUN tar xvf mtr-0.94.tar.gz \
+    && cd mtr-0.94 \
+    && ./configure --without-gtk --without-ncurses --without-jansson --without-ipinfo --disable-bash-completion \
+    && make -j4 LDFLAGS="-static" \
+    && strip /root/mtr-0.94/mtr \
+    && strip /root/mtr-0.94/mtr-packet
+
+################################################################################
+
+FROM scratch AS step_2
+ENV PATH=/
+COPY --from=step_0 /proxy /
+COPY --from=step_1 /root/mtr-0.94/mtr /
+COPY --from=step_1 /root/mtr-0.94/mtr-packet /
+ENTRYPOINT ["/proxy"]