Docker Multistage build - ghdrako/doc_snipets GitHub Wiki

GO

FROM golang:1.16 AS builder
WORKDIR /go/src/github.com/alexellis/href-counter/
RUN go get -d -v golang.org/x/net/html
COPY app.go .
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o app .
FROM alpine:latest
RUN apk --no-cache add ca-certificates
WORKDIR /root/
COPY --from=builder /go/src/github.com/alexellis/href-counter/app .
CMD ["./app"]

FROM golang:1.12.4 AS build
WORKDIR /tmp
COPY app.go .
RUN GOOS=linux go build -a -installsuffix cgo -o app . && chmod
+x ./app
FROM alpine:3.12.1
WORKDIR /tmp
COPY --from=build /tmp/app .
CMD ["./app"]

Python

FROM python:3 as python-base
COPY requirements.txt .
RUN pip install -r requirements.txt
FROM python:3-alpine
COPY --from=python-base /root/.cache /root/.cache
COPY --from=python-base requirements.txt .
RUN pip install -r requirements.txt && rm -rf /root/.cache