热加载docker配置，不停止已经运行的容器

由于容器运行时间长，起初没有对容器的控制台日志进行切割，导致docker控制台日志越来越大，所有需要 对控制台

第一步：查看生产Live Restore Enabled的值为false

# docker info |grep -i live
WARNING: bridge-nf-call-ip6tables is disabled
 Live Restore Enabled: false

第二步：将默认的Live Restore Enabled: false改为Live Restore Enabled: true，并加入日志切割

# vim /etc/docker/daemon.json 
{
  "data-root": "/data/docker",
  "log-driver":"json-file",
  "log-opts": {"max-size":"200m", "max-file":"3"},
  "live-restore": true
}

# systemctl reload docker
# docker info |grep -i live
WARNING: bridge-nf-call-ip6tables is disabled
 Live Restore Enabled: true

热重启docker：
# systemctl restart docker

第三步：还原Live Restore Enabled: false配置

# vim /etc/docker/daemon.json 
{
  "data-root": "/data/docker",
  "log-driver":"json-file",
  "log-opts": {"max-size":"200m", "max-file":"3"},
  "live-restore": false
}
# systemctl reload docker