Docker系统性入门（二）

FROM alpine:latest RUN apk update RUN apk --no-cache add curl ENV SUPERCRONIC_URL=/aptible/supercronic/releases/download/v0.1.12/supercronic-linux-amd64 \ SUPERCRONIC=supercronic-linux-amd64 \ SUPERCRONIC_SHA1SUM=048b95b48b708983effb2e5c935a1ef8483d9e3e RUN curl -fsSLO "$SUPERCRONIC_URL" \ && echo "${SUPERCRONIC_SHA1SUM} ${SUPERCRONIC}" | sha1sum -c - \ && chmod +x "$SUPERCRONIC" \ && mv "$SUPERCRONIC" "/usr/local/bin/${SUPERCRONIC}" \ && ln -s "/usr/local/bin/${SUPERCRONIC}" /usr/local/bin/supercronic COPY cron-date /app/my-cron WORKDIR /app VOLUME ["/app"] # 注意看这里，定义一个持久化数据的目录 # RUN cron job CMD ["/usr/local/bin/supercronic", "/app/my-cron"]