Dockerfile 示例
FROM ruby:2.3.1
RUN apt-get update
RUN apt-get -y install rsyslog cron
RUN mkdir /app
WORKDIR /app
ADD app /app
RUN crontab /app/crontabfile
RUN cp /app/crontabfile /etc/crontab
RUN touch /var/log/cron.log
RUN chmod +x /app/run.sh
CMD ["bash","/app/run.sh"]
保持container 后台运行添加run.sh
rsyslogd
cron
touch /var/log/cron.log
tail -F /var/log/syslog /var/log/cron.log
tail -F /var/log/syslog /var/log/cron.log 保持container运行
crontabfile 示例
每分钟运行一次
*/1 * * * * /usr/local/bin/ruby /app/run.rb cron >> /var/log/cron.log 2>&1
运行脚本
puts "[#{Time.now}] I am run each 1 min by cron job!"
构建镜像
docker build -t cronjob-with-docker .
运行
控制台运行
docker run --rm -it cronjob-with-docker
后台运行
docker run -d --name cronjob cronjob-with-docker
Repo: https://github.com/zhulinpinyu/cronjob-with-docker
特别鸣谢 Thanks:
https://yanqiw.github.io/docker/2016/02/21/schedule-task-in-docker.html
https://github.com/yanqiw/cron-in-docker
