rancher2.5.7安装_rancher 镜像下载-优快云博客

本文提供了在多台及单台机器上安装Rancher的详细步骤，并包括卸载流程，如删除容器、镜像及清理相关文件等。同时，针对K8s集群节点间通信问题给出了具体解决方案。

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安装

多台机器上

sudo docker run -d --restart=unless-stopped --privileged -p 80:80 -p 443:443 \
-v /docker_volume/rancher_home/rancher:/var/lib/rancher \
-v /docker_volume/rancher_home/auditlog:/var/log/auditlog \
--name rancher rancher/rancher:stable

一台机器上

sudo docker run -d --restart=unless-stopped --privileged -p 8080:80 -p 8443:443 \
-v /docker_volume/rancher_home/rancher:/var/lib/rancher \
-v /docker_volume/rancher_home/auditlog:/var/log/auditlog \
--name rancher2 rancher/rancher:stable

卸载

删除所有容器

docker rm -f $(docker ps -qa)

删除所有镜像

docker rmi `docker images -q`

卸载mount目录

for mount in $(mount | grep tmpfs | grep '/var/lib/kubelet' | awk '{ print $3 }') /var/lib/kubelet /var/lib/rancher; do umount $mount; done

删除残留路径

(官方给的不全 https://www.cnrancher.com/docs/rancher/v2.x/cn/install-prepare/remove-node/)

rm -rf /etc/ceph \
/etc/etcd \
/etc/kubernetes \
/etc/cni \
/opt/cni \
/run/secrets/kubernetes.io \
/run/calico \
/run/flannel \
/var/lib/calico \
/var/lib/cni \
/var/lib/kubelet \
/var/lib/etcd \
/var/lib/docker \
/var/log/containers \
/var/log/pods \
/var/run/calico

重启docker

systemctl restart docker

常见问题

K8s集群节点间通信no route to host

iptables --flush
iptables -tnat --flush
systemctl stop firewalld
systemctl disable firewalld
systemctl restart docker