Implements projectcontour#2789

Signed-off-by: Michael Leow <leow@sinarproject.org>

Dockerfile.debug

@@ -0,0 +1,42 @@
+FROM golang:1.15.2 AS build
+WORKDIR /contour
+
+ENV GOPROXY=https://proxy.golang.org
+COPY go.mod go.sum /contour/
+RUN go mod download
+
+COPY cmd cmd
+COPY internal internal
+COPY apis apis
+COPY Makefile Makefile
+
+ARG BUILD_BRANCH
+ARG BUILD_SHA
+ARG BUILD_VERSION
+
+RUN make install \
+	    CGO_ENABLED=0 \
+	    GOOS=linux \
+	    BUILD_VERSION=${BUILD_VERSION} \
+	    BUILD_SHA=${BUILD_SHA} \
+	    BUILD_BRANCH=${BUILD_BRANCH}
+
+FROM debian:stable-slim
+RUN apt-get update && \
+    apt-get install --no-install-recommends -y \
+      curl \
+      iproute2 \
+      iputils-ping \
+      dnsutils \
+      netcat \
+      tcpdump \
+      tcptraceroute traceroute \
+      net-tools \
+      libc6-dbg gdb \
+      elvis-tiny \
+      lsof \
+      procps \
+      busybox && \
+    alias vim=elvis-tiny && \
+    rm -rf /var/lib/apt/lists/*
+COPY --from=build /go/bin/contour /bin/contour

Makefile

@@ -97,6 +97,16 @@ container: ## Build the Contour container image
 		$(shell pwd) \
 		--tag $(IMAGE):$(VERSION)
 
+debug-container: ## Build the Contour debug container image
+	docker build \
+		-f Dockerfile.debug \
+		--build-arg "BUILD_VERSION=$(BUILD_VERSION)" \
+		--build-arg "BUILD_BRANCH=$(BUILD_BRANCH)" \
+		--build-arg "BUILD_SHA=$(BUILD_SHA)" \
+		$(DOCKER_BUILD_LABELS) \
+		$(shell pwd) \
+		--tag $(IMAGE)-debug:$(VERSION)
+
 push: ## Push the Contour container image to the Docker registry
 push: container
 	docker push $(IMAGE):$(VERSION)