api/v3/clairpb: generate protobufs in docker

This removes the requirement of the build machine having protobuf and
any extensions installed.

api/v3/clairpb/Dockerfile

@@ -0,0 +1,7 @@
+FROM golang:alpine
+
+RUN apk add --update --no-cache git bash protobuf-dev
+
+RUN go get -u github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway
+RUN go get -u github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger
+RUN go get -u github.com/golang/protobuf/protoc-gen-go

api/v3/clairpb/Makefile

@@ -1,17 +0,0 @@
-all:
-	protoc -I/usr/local/include -I. \
-		-I${GOPATH}/src \
-		-I${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis \
-		--go_out=plugins=grpc:. \
-		clair.proto
-	protoc -I/usr/local/include -I. \
-		-I${GOPATH}/src \
-		-I${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis \
-		--grpc-gateway_out=logtostderr=true:. \
-		clair.proto
-	protoc -I/usr/local/include -I. \
-		-I${GOPATH}/src \
-		-I${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis \
-		--swagger_out=logtostderr=true:. \
-		clair.proto
-	go generate .

api/v3/clairpb/generate-protobuf.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+
+# Copyright 2018 clair authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+DOCKER_REPO_ROOT="$GOPATH/src/github.com/coreos/clair"
+IMAGE=${IMAGE:-"quay.io/coreos/clair-gen-proto"}
+
+docker run --rm -it \
+  -v "$DOCKER_REPO_ROOT":"$DOCKER_REPO_ROOT" \
+  -w "$DOCKER_REPO_ROOT" \
+  "$IMAGE" \
+  "./api/v3/clairpb/run_in_docker.sh"

api/v3/clairpb/run_in_docker.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+# Copyright 2018 clair authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+protoc -I/usr/include -I. \
+  -I"${GOPATH}/src" \
+  -I"${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis" \
+  --go_out=plugins=grpc:. \
+  ./api/v3/clairpb/clair.proto
+
+protoc -I/usr/include -I. \
+  -I"${GOPATH}/src" \
+  -I"${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis" \
+  --grpc-gateway_out=logtostderr=true:. \
+  ./api/v3/clairpb/clair.proto
+
+protoc -I/usr/include -I. \
+  -I"${GOPATH}/src" \
+  -I"${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis" \
+  --swagger_out=logtostderr=true:. \
+  ./api/v3/clairpb/clair.proto
+
+go generate .