Learn the benefits of running one-off, short-lived Docker containers. Short-Lived containers are useful to execute one-line commands or setup scheduled tasks. We'll demonstrate setting up a cronjob from the host machine to tap into the benefits of ru…
docker stop 与 docker kill 均可以将容器停掉,但二者究竟有什么区别呢?首先,摘录一下官网对这两个功能的描述: docker stop: Stop a running container (send SIGTERM, and then SIGKILL after grace period) [...] The main process inside the container will receive SIGTERM, and after a grace period, S…
Dockerfile里有 CMD 与 ENTRYPOINT 两个功能咋看起来很相似的指令,开始的时候觉得两个互用没什么所谓,但其实并非如此: CMD指令: The main purpose of a CMD is to provide defaults for an executing container. CMD在容器运行的时候提供一些命令及参数,用法如下: CMD ["executable","param1","param2"] (exec…
Dockerfile 用于自动化构建一个docker镜像.Dockerfile里有 CMD 与 ENTRYPOINT 两个功能咋看起来很相似的指令,开始的时候觉得两个互用没什么所谓,但其实并非如此: CMD指令: The main purpose of a CMD is to provide defaults for an executing container. CMD在容器运行的时候提供一些命令及参数,用法如下: CMD ["executable","param1&quo…
安装Dock服务,主要命令是 yum install docker. 但是在启动的时候报错:warning msg="could not change group /var/run/docker.sock to docker: group docker not found" 错误截图如下: 解决方案是在docker的配置文件/etc/sysconfig/docke 中设置禁用selinux. (方法来源于 https://www.jianshu.com/p/a62ffb13ada6,…