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设置docker、容器开机启动

简介:docker容器化可以使得环境相对独立,减少污染。在遇到关机重启时,重新启动显得很鸡肋,特别是必须开机自启动的程序,添加必要的参数使得每次重启后可以开始使用容器非常有必要。

历史攻略:

centos7.6:安装docker

win10:安装docker和测试安装redis

Ubuntu:安装docker + 设置开机启动

设置开机启动docker:

systemctl enable docker

设置容器自动重启

1、创建容器时设置

docker run -itd --restart=always --name 容器名 使用的镜像:版本

docker 容器的重启策略:

--restart具体参数值详细信息:

no: 默认策略,容器退出时不重启容器;

on-failure: 在容器非正常退出时(退出状态非0)才重新启动容器;

on-failure:3  在容器非正常退出时重启容器,最多重启3次;

always: 无论退出状态是如何,都重启容器;

unless-stopped: 在容器退出时总是重启容器,
但是不考虑在 Docker 守护进程启动时就已经停止了的容器。

2、修改已有容器,通过update设置

如果创建时未指定 --restart=always,可通过update 命令设置
docker update --restart=always 容器ID(或者容器名)

运行结果:

(base) root@ci4vyvxi:~# docker ps -a
CONTAINER ID   IMAGE                                COMMAND                  CREATED       STATUS                    PORTS                                   NAMES
9dfb678e42c0   tomrunrunrun888/websiteguide:1.0.1"sh /entrypoint.sh"3 weeks ago   Up 9 days                 0.0.0.0:8000->80/tcp,:::8000->80/tcp   websiteguide
6086859131c3   ubuntu:latest                        "/bin/bash"4 weeks ago   Exited (137)9 days ago                                           ssh-demo
07636c8ccd6e   openspug/spug-service                "/entrypoint.sh"7 weeks ago   Up 9 days                 0.0.0.0:8006->80/tcp,:::8006->80/tcp   spug
27df7e413c07   mariadb:10.8.2"docker-entrypoint.s…"7 weeks ago   Up 9 days                 3306/tcp                                spug-db
(base) root@ci4vyvxi:~# docker update --restart=always 6086859131c3
6086859131c3
(base) root@ci4vyvxi:~# reboot       ## 重启 ## 
Connection closing...Socket close.

Connection closed by foreign host.

Disconnected from remote host(36.40.91.202) at 21:40:08.

Type `help' to learn how to use Xshell prompt.[C:\~]$ 

Connecting to xxxxxx:22...
Connection established.
To escape to local shell, press 'Ctrl+Alt+]'.

Welcome to Ubuntu 20.04.2 LTS (GNU/Linux 5.4.0-137-generic x86_64)

Last login: Sun Jan 1521:12:552023from117.140.118.233(base) root@ci4vyvxi:~# docker ps -a
CONTAINER ID   IMAGE                                COMMAND                  CREATED       STATUS          PORTS                                   NAMES
9dfb678e42c0   tomrunrunrun888/websiteguide:1.0.1"sh /entrypoint.sh"3 weeks ago   Up 37 seconds   0.0.0.0:8000->80/tcp,:::8000->80/tcp   websiteguide
6086859131c3   ubuntu:latest                        "/bin/bash"4 weeks ago   Up 38 seconds   0.0.0.0:1234->22/tcp,:::1234->22/tcp   ssh-demo
07636c8ccd6e   openspug/spug-service                "/entrypoint.sh"7 weeks ago   Up 37 seconds   0.0.0.0:8006->80/tcp,:::8006->80/tcp   spug
27df7e413c07   mariadb:10.8.2"docker-entrypoint.s…"7 weeks ago   Up 37 seconds   3306/tcp                                spug-db
标签: docker 运维 容器

本文转载自: https://blog.csdn.net/hzblucky1314/article/details/129452192
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