Dockerfile

FROM golang:1.14 as api
WORKDIR /go/src/github.com/logicmonitor/k8s-collectorset-controller
RUN apt-get update
RUN apt-get -y install bsdtar
RUN go get github.com/golang/protobuf/protoc-gen-go
RUN curl -L https://github.com/google/protobuf/releases/download/v3.3.0/protoc-3.3.0-linux-x86_64.zip | bsdtar -xf - --strip-components=1 -C /bin bin/protoc \
  && chmod +x /bin/protoc
COPY ./proto ./proto
RUN mkdir api
RUN protoc -I proto proto/api.proto \
  --go_out=plugins=grpc:api --go_opt=paths=source_relative

FROM golang:1.14-alpine as codegen
RUN apk add --update git
RUN go get github.com/kubernetes/code-generator/cmd/deepcopy-gen || true \
  && cd /go/src/github.com/kubernetes/code-generator \
  && git checkout remotes/origin/release-1.17 \
  && go get -d ./... \
  && go install ./cmd/deepcopy-gen
WORKDIR $GOPATH/src/github.com/logicmonitor/k8s-collectorset-controller
COPY ./ ./
RUN deepcopy-gen \
  --go-header-file="hack/boilerplate.go.txt" \
  --input-dirs="github.com/logicmonitor/k8s-collectorset-controller/pkg/apis/v1alpha2" \
  --bounding-dirs "github.com/logicmonitor/k8s-collectorset-controller/pkg/apis/v1alpha2" \
  --output-file-base zz_generated.deepcopy

FROM golang:1.14 as build
WORKDIR $GOPATH/src/github.com/logicmonitor/k8s-collectorset-controller
COPY --from=codegen $GOPATH/src/github.com/logicmonitor/k8s-collectorset-controller ./
COPY --from=api $GOPATH/src/github.com/logicmonitor/k8s-collectorset-controller/api ./api
ARG VERSION
RUN GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o /collectorset-controller -ldflags "-X \"github.com/logicmonitor/k8s-collectorset-controller/pkg/constants.Version=${VERSION}\""

FROM golang:1.14 as test
WORKDIR $GOPATH/src/github.com/logicmonitor/k8s-collectorset-controller
RUN go get -u github.com/alecthomas/gometalinter
RUN gometalinter --install
COPY --from=build $GOPATH/src/github.com/logicmonitor/k8s-collectorset-controller ./
RUN chmod +x ./scripts/test.sh; sync; ./scripts/test.sh
RUN cp coverage.txt /coverage.txt

FROM alpine:3.6
LABEL maintainer="LogicMonitor <argus@logicmonitor.com>"
RUN apk --update add ca-certificates \
  && rm -rf /var/cache/apk/* \
  && rm -rf /var/lib/apk/*
WORKDIR /app
COPY --from=api /go/src/github.com/logicmonitor/k8s-collectorset-controller/api/* /tmp/
COPY --from=codegen /go/src/github.com/logicmonitor/k8s-collectorset-controller/pkg/apis/v1alpha2/zz_generated.deepcopy.go /tmp/
COPY --from=build /collectorset-controller /bin
COPY --from=test /coverage.txt /coverage.txt

ENTRYPOINT ["collectorset-controller"]
CMD ["watch"]