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标签 - etcd

k3s k8s rancher etcd    2023-12-08 15:05:22    57    0    0

定位问题

rancher部署的k3s集群无法加入新的etcd节点,查询日志发现报错,etcd群组中出现本应该已被删除的节点prepaid-de,此节点已经被删除,但却错误的留在了etcd member list中,导致etcd服务无法正常验证。

解决思路

移除已经无效的节点prepaid-de,恢复etcd集群的可用性。

解决方案

在k3s集群主控节点安装etcdctl工具。 

一、安装etcdctl

方法一:可以使用apt install命令直接进行安装

apt install etcd-client

方法二:下载对应etcd版本的etcdctl工具手动安装

首先查询获取etcd的版本

curl -L --cacert /var/lib/rancher/k3s/server/tls/etcd/server-ca.crt --cert /var/lib/rancher/k3s/server/tls/etcd/server-client.crt --key /var/lib/rancher/k3s/server/tls/etcd/server-client.key <https://127.0.0.1:2379/version>

修改ETCD-VER=v 之后的版本号为之前获取到的数字,运行以下命令安装对应版本etcdctl

ETCD_VER=v3.5.0
# choose either URL
GOOGLE_URL=https://storage.googleapis.com/etcd
GITHUB_URL=https://github.com/etcd-io/etcd/releases/download
DOWNLOAD_URL=${GOOGLE_URL}
rm -f /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gzrm -rf /tmp/etcd-download-test && mkdir -p /tmp/etcd-download-test
curl -L ${DOWNLOAD_URL}/${ETCD_VER}/etcd-${ETCD_VER}-linux-amd64.tar.gz -o /tmp/etcd-${ETCD_VER}-linux-amd64.tar.gztar xzvf /tmp/etcd-${ETCD_VER}-linux-amd64.