Docker k8s集群的搭建

最新推荐文章于 2025-03-14 17:24:57 发布

zcx1203

最新推荐文章于 2025-03-14 17:24:57 发布

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本文链接：https://blog.youkuaiyun.com/zcx1203/article/details/90679487

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本文详细介绍了如何关闭swap分区，加载所需镜像，初始化并解决k8s集群报错，设置k8s用户环境，修复kubectl命令补全问题，以及检查集群节点和pod状态，是Docker k8s集群搭建的全面教程。

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[root@server1 k8s]# yum install -y kubeadm-1.12.2-0.x86_64.rpm kubelet-1.12.2-0.x86_64.rpm kubectl-1.12.2-0.x86_64.rpm kubernetes-cni-0.6.0-0.x86_64.rpm cri-tools-1.12.0-0.x86_64.rpm

关闭swap分区

[root@server1 rpm]# swapoff -a
[root@server1 rpm]# vim /etc/fstab 
#/dev/mapper/rhel-swap   swap                    swap    defaults        0 0
[root@server1 rpm]# systemctl enable kubelet.service 
Created symlink from /etc/systemd/system/multi-user.target.wants/kubelet.service to /etc/systemd/system/kubelet.service.

[root@server2 k8s]# swapoff -a
[root@server2 k8s]# vim /etc/fstab 
注释swap

[root@server2 k8s]# systemctl enable kubelet

列出需要加载的镜像

[root@server1 k8s]# kubeadm config images list
I0529 20:14:24.882048    8689 version.go:93] could not fetch a Kubernetes version from the internet: unable to get URL "https://dl.k8s.io/release/stable-1.txt": Get https://dl.k8s.io/release/stable-1.txt: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
I0529 20:14:24.882095    8689 version.go:94] falling back to the local client version: v1.12.2
k8s.gcr.io/kube-apiserver:v1.12.2
k8s.gcr.io/kube-controller-manager:v1.12.2
k8s.gcr.io/kube-scheduler:v1.12.2
k8s.gcr.io/kube-proxy:v1.12.2
k8s.gcr.io/pause:3.1
k8s.gcr.io/etcd:3.2.24
k8s.gcr.io/coredns:1.2.2

加载镜像

[root@server1 k8s]# docker load -i kube-apiserver.tar 
8a788232037e: Loading layer   1.37MB/1.37MB
507564533658: Loading layer  192.8MB/192.8MB
Loaded image: k8s.gcr.io/kube-apiserver:v1.12.2
[root@server1 k8s]# docker load -i kube-controller-manager.tar 
0faf148c8565: Loading layer    163MB/163MB
Loaded image: k8s.gcr.io/kube-controller-manager:v1.12.2
[root@server1 k8s]# docker load -i kube-proxy.tar 
0c1604b64aed: Loading layer   44.6MB/44.6MB
dc6f419d40a2: Loading layer  3.407MB/3.407MB
2d9b7a4a23dd: Loading layer  50.33MB/50.33MB
Loaded image: k8s.gcr.io/kube-proxy:v1.12.2
[root@server1 k8s]# docker load -i pause.tar 
e17133b79956: Loading layer  744.4kB/744.4kB
Loaded image: k8s.gcr.io/pause:3.1
[root@server1 k8s]# docker load -i etcd.tar 
f9d9e4e6e2f0: Loading layer  1.378MB/1.378MB
7882cc107ed3: Loading layer  195.1MB/195.1MB
43f7b6974634: Loading layer  23.45MB/23.45MB
Loaded image: k8s.gcr

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