Golang Docker file

Docker

FROM golang:1.16.7-alpine AS builder
# git is needed to download those packages
# use this if u called to any https service
RUN apk --update add --no-cache ca-certificates openssl git && update-ca-certificates
# without ssl
RUN apk --update add --no-cache git
WORKDIR /app
copy go.mod ./
copy go.sum ./
RUN go mod download
COPY . .
# build as binary file
RUN GO111MODULE="on" CGO_ENABLED=0 GOOS=linux go build -o ./<service-name> ./
FROM scratch
# ignore this if you don't need ssl
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
WORKDIR /app
# copy the built binary file
COPY --from=builder /app/<service-name> /<service-name>
EXPOSE 8080
CMD [ "/<service-name>" ]