K8S集群机器重启后，docker 启动失败，通过journalctl -xe 查看发现报错"list bridge addresses failed: no available network" 或者 Error starting daemon: Error initializing network controller: Error creating default "bridge" network: bridge has no IPv4 address configured
解决方法
先停止docker，kubelet也可以先停掉：
systemctl stop kubelet.service
systemctl status docker.service
然后清理docker的network,可以先清理 /var/lib/docker/network/
rm -r -f /var/lib/docker/network/
如果不行再清理/var/lib/docker
mv /var/lib/docker /var/lib/docker-bak
- 删除docker0和docker_gwbridge 网络
ifconfig docker0 down
brctl delbr docker0
ifconfig docker_gwbridge down
brctl delbr docker_gwbridge
重启docker即可：
systemctl restart docker.service
验证：
● docker.service - Docker Application Container Engine
Loaded: loaded (/etc/systemd/system/docker.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2020-03-31 19:25:55 CST; 5min ago
Docs: http://docs.docker.io
Process: 14395 ExecStartPost=/sbin/iptables -I FORWARD -s 0.0.0.0/0 -j ACCEPT (code=exited, status=0/SUCCESS)
Main PID: 14394 (dockerd)
Memory: 43.4M
CGroup: /system.slice/docker.service
├─14394 /opt/kube/bin/dockerd
└─14408 docker-containerd --config /var/run/docker/containerd/containerd.toml
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg="loading plugin "io.containerd.grpc.v1.images"..." type=io.containerd.grpc.v1
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg="loading plugin "io.containerd.grpc.v1.leases"..." type=io.containerd.grpc.v1
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg="loading plugin "io.containerd.grpc.v1.namespaces"..." type=io.containerd.grpc.v1
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg="loading plugin "io.containerd.grpc.v1.snapshots"..." type=io.containerd.grpc.v1
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg="loading plugin "io.containerd.grpc.v1.tasks"..." type=io.containerd.grpc.v1
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg="loading plugin "io.containerd.grpc.v1.version"..." type=io.containerd.grpc.v1
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg="loading plugin "io.containerd.grpc.v1.introspection"..." type=io.containerd.grpc.v1
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg=serving... address="/var/run/docker/containerd/docker-containerd-debug.sock"
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg=serving... address="/var/run/docker/containerd/docker-containerd.sock"
Mar 31 19:25:55 docker86-21 dockerd[14394]: time="2020-03-31T19:25:55+08:00" level=info msg="containerd successfully booted in 0.132473s"