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docker-multi-stage-demo

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docker multi stage build demo

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# docker-multi-stage-demo
this project is a demo of docker multi stage build.

## docker images

`cnych/docker-multi-stage-demo:latest`

## run
```
$ docker run --rm -p 8080:8080 cnych/docker-multi-stage-demo:latest
```

after run successfully, you can visit `http://127.0.0.1:8080/ping` in browser.

## Before Multi-stage Build Method
you can build multi images, use multi images:
```
#!/bin/sh
echo Building cnych/docker-multi-stage-demo:build

docker build -t cnych/docker-multi-stage-demo:build . -f Dockerfile.build

docker create --name extract cnych/docker-multi-stage-demo:build  
docker cp extract:/go/src/app/app-server ./app-server  
docker rm -f extract

echo Building cnych/docker-multi-stage-demo:old

docker build --no-cache -t cnych/docker-multi-stage-demo:old . -f Dockerfile.old
rm ./app-server
```

## Dockerfile
you can define multi stage in Dockerfile:
```
FROM golang AS build-env
ADD . /go/src/app
WORKDIR /go/src/app
RUN go get -u -v github.com/kardianos/govendor
RUN govendor sync
ENV GOOS=linux
ENV GOARCH=386
RUN go build -v -o /go/src/app/app-server

FROM alpine
RUN apk add -U tzdata
RUN ln -sf /usr/share/zoneinfo/Asia/Shanghai  /etc/localtime
COPY --from=build-env /go/src/app/app-server /usr/local/bin/app-server
EXPOSE 8080
CMD [ "app-server" ]
```

docker-multi-stage-demo

docker-multi-stage-demo Latest Version Download

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