Dockerfile

Here: https://docs.docker.com/develop/develop-images/dockerfile_best-practices/

```docker

syntax=docker/dockerfile:1

FROM golang:1.16-alpine AS build

Install tools required for project

Run docker build --no-cache . to update dependencies

RUN apk add –no-cache git RUN go get github.com/golang/dep/cmd/dep

List project dependencies with Gopkg.toml and Gopkg.lock

These layers are only re-built when Gopkg files are updated

COPY Gopkg.lock Gopkg.toml /go/src/project/ WORKDIR /go/src/project/

Install library dependencies

RUN dep ensure -vendor-only

Copy the entire project and build it

This layer is rebuilt when a file changes in the project directory

COPY . /go/src/project/ RUN go build -o /bin/project

This results in a single layer image

FROM scratch COPY –from=build /bin/project /bin/project ENTRYPOINT [“/bin/project”] CMD [”–help”] ```plaintext