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Docker multi-stage technology

 2 years ago
source link: https://linuxsuren.github.io/blog/devops/docker/multi-stage/
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Docker multi-stage technology

Docker multi-stage technology

We can build our application in Dockerfile. But we don’t want the whole thing in our final docker image. Docker multi-stage technology could help us the reduce the size.

FROM golang:1.12 AS builder

WORKDIR /work
RUN git clone https://github.com/devops-ws/learn-pipeline-go && \
  cd learn-pipeline-go && go build -o go-server
RUN ls -hal

FROM alpine:3.10
COPY --from=builder /work/learn-pipeline-go/go-server .
CMD ['go-server']

After built this: docker build . -t go-server

then we can test it: docker run go-server


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