feat: add protoc docker image

build/docker/protoc/Dockerfile

@@ -0,0 +1,17 @@
+FROM    moul/protoc-gen-gotemplate:latest as pgg
+
+FROM    golang:1.11-alpine as builder
+RUN     apk --no-cache add make git go rsync libc-dev openssh docker
+RUN     go get -u -v \
+        github.com/opsee/protobuf/protoc-gen-gogoopsee
+
+FROM    golang:1.11-alpine
+RUN     apk --no-cache add git make protobuf gcc libc-dev && \
+        mkdir -p /.cache/go-build && \
+        chmod -R 777 /.cache
+COPY    --from=pgg /go/bin/* /go/bin/
+COPY    --from=builder /go/bin/* /go/bin/
+COPY    --from=pgg /protobuf /protobuf
+ENV     GOPATH=/go \
+        PATH=/go/bin:${PATH} \
+        GOROOT=/usr/local/go

build/docker/protoc/Makefile

@@ -0,0 +1,9 @@
+IMAGE ?= pathwar/protoc:v1
+
+.PHONY: release
+build:
+	docker build --pull -t $(IMAGE) .
+
+.PHONY: release
+release: build
+	docker push $(IMAGE)