flanneld检查脚本

k8s集群node节点flanneld服务down的检查重启脚本

# cat check_flanneld.sh 
#!/bin/bash# 服务名称
FLANNEL_SERVICE="flanneld"
DOCKER_SERVICE="docker"# 检查 flanneld 是否运行
if ! systemctl is-active --quiet $FLANNEL_SERVICE; thenecho "$(date '+%Y-%m-%d %H:%M:%S') [WARN] $FLANNEL_SERVICE 已停止，开始重启..."# 重启 flanneldsystemctl restart $FLANNEL_SERVICE# 等待几秒确保 flanneld启动完成sleep 5echo "$(date '+%Y-%m-%d %H:%M:%S') [INFO] $FLANNEL_SERVICE 已重启"# 重启 dockerecho "$(date '+%Y-%m-%d %H:%M:%S') [INFO] 开始重启 $DOCKER_SERVICE..."systemctl restart $DOCKER_SERVICEecho "$(date '+%Y-%m-%d %H:%M:%S') [INFO] $DOCKER_SERVICE 已重启"
elseecho "$(date '+%Y-%m-%d %H:%M:%S') [INFO] $FLANNEL_SERVICE 正常运行"
fi

设置定时任务执行

# crontab -e
*/30 * * * * /bin/bash /data/scripts/check_flanneld.sh  >> /var/log/check_flanneld.log 2>&1