doumian3780 2019-02-18 08:21
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如何在Golang中使用gRPC减小docker映像的大小?

I have some server and clients who are communicating using gRPC/golang. Now I want to containerize my application but the size of the docker image containing goland execution and grpc support is larger(more than 1GB). I would like to decrease the size of the docker image.

The required golang version is 1.9 and higher. Here is the Dockerfile script is given. If there is other way please suggest it.

FROM golang:1.11

RUN apt-get update && \
    apt-get -y install git unzip build-essential autoconf libtool

RUN git clone https://github.com/google/protobuf.git && \
    cd protobuf && \
    ./autogen.sh && \
    ./configure && \
    make && \
    make install && \
    ldconfig && \
    make clean && \
    cd .. && \
    rm -r protobuf

RUN go get google.golang.org/grpc

RUN go get github.com/golang/protobuf/protoc-gen-go

RUN ls -la

WORKDIR /helloworld

COPY . /helloworld

RUN protoc -I helloworld/ helloworld/helloworld.proto --go_out=plugins=grpc:helloworld

CMD ["go", "run", "helloworld/greeter_server/main.go"]
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2条回答 默认 最新

  • duankang5285 2019-02-18 10:55
    关注

    try to make a multistage docker image like this

    # Compile stage
    FROM golang:1.11 as build-env
    
    RUN apt-get update && \
        apt-get -y install git unzip build-essential autoconf libtool
    
    RUN git clone https://github.com/google/protobuf.git && \
        cd protobuf && \
        ./autogen.sh && \
        ./configure && \
        make && \
        make install && \
        ldconfig && \
        make clean && \
        cd .. && \
        rm -r protobuf
    
    RUN go get google.golang.org/grpc
    
    RUN go get github.com/golang/protobuf/protoc-gen-go
    
    RUN ls -la
    
    WORKDIR /helloworld
    
    COPY . /helloworld
    
    RUN protoc -I helloworld/ helloworld/helloworld.proto --go_out=plugins=grpc:helloworld
    RUN go build -o server helloworld/greeter_server/main.go
    
    # Making image
    FROM alpine:3.8 AS host
    RUN apk add --no-cache \
            ca-certificates
    COPY --from=build-env /helloworld/server /
    # copy any other files you need
    
    WORKDIR /
    EXPOSE 8000
    CMD ["server"]
    
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