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错误的daemon.json配置,导致docker容器启动失败 Failed to start Docker Application Container Engine

2022年07月19日253wuhuacong

docker学习-配置错误的源

问题点剖析

使用docker安装了nginx,编写Dockerfile,映射端口,终于跑起来了。但是,当我重启服务器,再次查看docker容器的状态,发现报错了。

# docker ps -a 
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 

然后重启docker

#  sudo service docker start 
Redirecting to /bin/systemctl start docker.service 
Job for docker.service failed because start of the service was attempted too often. See "systemctl status docker.service" and "journalctl -xe" for details. 
To force a start use "systemctl reset-failed docker.service" followed by "systemctl start docker.service" again. 
 

发现还是不行,根据提示查看docker.servicestatus

# systemctl status docker.service 
● docker.service - Docker Application Container Engine 
   Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled) 
   Active: failed (Result: start-limit) since 二 2020-05-05 01:13:34 CST; 9s ago 
     Docs: https://docs.docker.com 
  Process: 1880 ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock (code=exited, status=1/FAILURE) 
 Main PID: 1880 (code=exited, status=1/FAILURE) 
 
5月 05 01:13:32 10.0.2.8 systemd[1]: docker.service: main process exited, code=exited, sta...URE 
5月 05 01:13:32 10.0.2.8 systemd[1]: Failed to start Docker Application Container Engine. 
5月 05 01:13:32 10.0.2.8 systemd[1]: Unit docker.service entered failed state. 
5月 05 01:13:32 10.0.2.8 systemd[1]: docker.service failed. 
5月 05 01:13:34 10.0.2.8 systemd[1]: docker.service holdoff time over, scheduling restart. 
5月 05 01:13:34 10.0.2.8 systemd[1]: Stopped Docker Application Container Engine. 
5月 05 01:13:34 10.0.2.8 systemd[1]: start request repeated too quickly for docker.service 
5月 05 01:13:34 10.0.2.8 systemd[1]: Failed to start Docker Application Container Engine. 
5月 05 01:13:34 10.0.2.8 systemd[1]: Unit docker.service entered failed state. 
5月 05 01:13:34 10.0.2.8 systemd[1]: docker.service failed. 
Hint: Some lines were ellipsized, use -l to show in full. 

分析发现原因是docker不能启动

Failed to start Docker Application Container Engine. 

daemon.json如果包含格式不正确的JSONDocker将无法启动

检查了一下daemon.json,果真,少了一个

修改daemon.json,然后重启解决了。

参考

【docker安装完了以后,服务启动不了】http://www.docker.org.cn/thread/72.html


本文参考链接:https://www.cnblogs.com/ricklz/p/12829220.html