环境信息

hostnameip备注k8s-master192.168.0.51masterk8s-node1192.16…Centos7.9使用kubeadm部署K8S集群

使用kubeadm部署一个k8s集群单master2worker节点。

环境信息

hostnameip备注k8s-master192.168.0.51masterk8s-node1192.168.0.52workerk8s-node2192.168.0.53worker

准备工作

net.bridge.bridge-nf-call-ip6tables

net.bridge.bridge-nf-call-iptables

EOF

https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

/etc/yum.repos.d/docker-ce.repo

yum

[https://wnsrsn9i.mirror.aliyuncs.com]

EOF#

Mirrors:https://wnsrsn9i.mirror.aliyuncs.com/

...2.3

/etc/yum.repos.d/kubernetes.repo

EOF

baseurlhttps://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64

enabled1

gpgkeyhttps://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg

https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg

EOF#

--apiserver-advertise-address192.168.0.51

--image-repository

registry.aliyuncs.com/google_containers

--kubernetes-version

--pod-network-cidr10.244.0.0/16...

[addons]

at:https://kubernetes.io/docs/concepts/cluster-administration/addons/Then

you

\--discovery-token-ca-cert-hash

sha256:95b842305c484ffcdcf3d5ccdeb5ada6ee89f418e77709138b491654e88c88ed

...#

\--discovery-token-ca-cert-hash

sha256:95b842305c484ffcdcf3d5ccdeb5ada6ee89f418e77709138b491654e88c88edmaster部署网络插件

kubectl

https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml

kubectl

查看运行状态如果无法下载手动创建kube-flannel.yml内容如下

---

flannelpod-security.kubernetes.io/enforce:

privileged

flanneltemplate:metadata:labels:tier:

nodeapp:

flannelspec:affinity:nodeAffinity:requiredDuringSchedulingIgnoredDuringExecution:nodeSelectorTerms:-

matchExpressions:-

system-node-criticaltolerations:-

operator:

docker.io/flannel/flannel-cni-plugin:v1.4.1-flannel1command:-

cpargs:-

/opt/cni/bin/flannelvolumeMounts:-

name:

docker.io/flannel/flannel:v0.25.4command:-

cpargs:-

/etc/kube-flannel/cni-conf.json-

/etc/cni/net.d/10-flannel.conflistvolumeMounts:-

name:

docker.io/flannel/flannel:v0.25.4command:-

--ip-masq-

--kube-subnet-mgrresources:requests:cpu:

100mmemory:

50MisecurityContext:privileged:

[NET_ADMIN,

POD_NAMEvalueFrom:fieldRef:fieldPath:

metadata.name-

POD_NAMESPACEvalueFrom:fieldRef:fieldPath:

metadata.namespace-

FileOrCreate部署flannel会拉取两个镜像国内网络环境有时候无法顺利拉取可以从其他地方获取后离线导入当前环境

[rootk8s-master