Upgrade - v1.25.0¶
升级前后版本对比
| 软件名称 | 当前版本 | 升级版本 |
|---|---|---|
| kubeadm | 1.24.0-00 | 1.25.0-00 |
| kubelet | 1.24.0-00 | 1.25.0-00 |
| kubernetes | 1.24.0-00 | 1.25.0-00 |
| etcd | 3.5.3-0 | 3.5.4-0 |
| flannel | v0.17.0 | v0.19.1 |
| coredns | v1.8.6 | v1.9.3 |
| containerd | 1.5.9-0ubuntu1~20.04.1 | 1.5.9-0ubuntu1~20.04.4 |
一、升级二进制¶
apt update
apt-mark showhold
# containerd
CONTAINERD_VERSION=1.5.9-0ubuntu1~20.04.4
apt install -y --allow-change-held-packages containerd=${CONTAINERD_VERSION}
# kubernetes
KUBERNETES_VERSION=1.25.0-00
apt install -y --allow-change-held-packages kubeadm=${KUBERNETES_VERSION} kubectl=${KUBERNETES_VERSION} kubelet=${KUBERNETES_VERSION}
# validate
dpkg -l | grep -E "kube|containerd"
containerd --version
kubeadm version
# hold
apt-mark hold containerd kubeadm kubectl kubelet && apt-mark showhold
# lib
ls -l /var/lib/{containerd,etcd,kubelet}
二、升级集群¶
systemctl restart containerd
# 查看升级计划
kubeadm upgrade plan
# 升级集群 <仅需要在一台master节点执行一次>
kubeadm upgrade apply v1.25.0
# 重启kubelet <配置未随kubernetes升级>
sed -i 's/pause:3.7/pause:3.8/' /var/lib/kubelet/kubeadm-flags.env
systemctl restart kubelet
systemctl status kubelet
# 依次升级剩下control-plane/node节点
kubeadm upgrade node
# 查看节点组件证书签名
kubeadm certs check-expiration
# 升级coredns <未随kubernetes升级>
kubectl -n kube-system edit deployment.apps/coredns
# hub.8ops.top/google_containers/coredns:v1.8.6 --> v1.9.3
# 查看集群基础组件运行
kubectl -n kube-system get all