Dockerfile
# syntax=docker/dockerfile:1.2
FROM golang-1.18.5:ubuntu-22.04 AS builder
ENV CGO_ENABLED 0
ENV GOOS linux
ENV GOPROXY https://goproxy.cn,direct
WORKDIR /build/
COPY go.* .
RUN go mod download
COPY . .
RUN --mount=type=cache,target=/root/.cache/go-build go mod tidy && go build -v -o ./myapp ./...
FROM ubuntu:22.04
WORKDIR /apps
COPY --from=builder /build/myapp /apps/myapp
COPY --from=builder /build/app/myapp/etc/myapp.yaml /apps/myapp.yaml
EXPOSE 9003
CMD ["./myapp", "-f", "./myapp.yaml"]
