github构建docker镜像并推送
1.新建github仓库
2.新建Dockerfile
FROM golang:alpine AS builder
RUN mkdir /app
ADD . /app/
WORKDIR /app
ENV GO111MODULE=off
RUN go build -o hello .
FROM alpine
RUN mkdir /app
WORKDIR /app
COPY /app/hello .
CMD ["./hello"]
...大约 1 分钟