主机名地址角色配置kube-master192.168.134.165主节点2核4Gkube-node1192..168.134.166

工作节点2核4Gkube-node2192.168.134.163工作节点2核4G

1.获取镜像

k8s.gcr.io/kube-apiserver:v1.22.0

docker

k8s.gcr.io/kube-controller-manager:v1.22.0

docker

k8s.gcr.io/kube-scheduler:v1.22.0

docker

k8s.gcr.io/coredns/coredns:v1.8.4

注意所有机器都必须有镜像

每次部署都会有版本更新具体版本要求运行初始化过程失败会有版本提示

2.安装docker[集群]

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

下载docker#

[https://pilvpemn.mirror.aliyuncs.com],exec-opts:

[native.cgroupdriversystemd],log-driver:

json-file,log-opts:

#注意一定注意编码问题出现错误---查看命令journalctl

-amu

registry.cn-hangzhou.aliyuncs.com/google_containers/kube-controller-manager:v1.22.0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.22.0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver:v1.22.0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler:v1.22.0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:v1.8.4

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/etcd:3.5.0-0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5#

下载完了之后需要将aliyun下载下来的所有镜像打成k8s.gcr.io/kube-controller-manager:v1.22.0这样的tag

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/kube-controller-manager:v1.22.0

k8s.gcr.io/kube-controller-manager:v1.22.0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/kube-proxy:v1.22.0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/kube-apiserver:v1.22.0

k8s.gcr.io/kube-apiserver:v1.22.0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/kube-scheduler:v1.22.0

k8s.gcr.io/kube-scheduler:v1.22.0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/coredns:v1.8.4

k8s.gcr.io/coredns/coredns:v1.8.4

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/etcd:3.5.0-0

docker

registry.cn-hangzhou.aliyuncs.com/google_containers/pause:3.5

k8s.gcr.io/pause:3.5

3.编辑文件/etc/selinux/config将SELINUX修改为disabled如下

sed

s/SELINUXenforcing/SELINUXdisabled/

SELINUXdisabled

修改/etc/fstab文件注释掉SWAP的自动挂载使用free

2.注释掉swap分区

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

[kubernetes]

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

net.bridge.bridge-nf-call-iptables1

net.bridge.bridge-nf-call-ip6tables1

net.ipv4.ip_forward1

fs.inotify.max_user_instances8192

fs.inotify.max_user_watches1048576

fs.file-max52706963

net.ipv6.conf.all.disable_ipv61

net.netfilter.nf_conntrack_max2310720

EOF

6.如果net.bridge.bridge-nf-call-iptables报错加载br_netfilter模块

modprobe

KUBELET_EXTRA_ARGS--cgroup-driver$DOCKER_CGROUPS

--pod-infra-container-imagek8s.gcr.io/pause:3.5

EOF3.启动

--pod-network-cidr10.244.0.0/16

--apiserver-advertise-address192.168.134.165

[init]

kubernetes.default.svc.cluster.local]

and

/var/lib/kubelet/kubeadm-flags.env

[kubelet-start]

[node-role.kubernetes.io/master(deprecated)

node-role.kubernetes.io/control-plane

node.kubernetes.io/exclude-from-external-load-balancers]

[mark-control-plane]

[node-role.kubernetes.io/master:NoSchedule]

[bootstrap-token]

$HOME/.kube/configAlternatively,

you

KUBECONFIG/etc/kubernetes/admin.confYou

should

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

you

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

sha256:564306d7275eb8f39579ea14787098698f8b4c0a67bb09887cec6c3af41f7561

上面记录了完成的初始化输出的内容根据输出的内容基本上可以看出手动初始化安装一个Kubernetes集群所需要的关键步骤。

生成kubelet的配置文件”/var/lib/kubelet/config.yaml”[certificates]生成相关的各种证书[kubeconfig]生成相关的kubeconfig文件[bootstraptoken]生成token记录下来后边使用kubeadm

如下操作在master节点操作

$HOME/.kube/config8.node加入集群[node]

配置node节点加入集群

net.ipv4.ip_forward1在所有node节点操作此命令为初始化master成功后返回的结果

[rootkube-node1

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

sha256:564306d7275eb8f39579ea14787098698f8b4c0a67bb09887cec6c3af41f7561

9.配置使用网络插件[master]

https://docs.projectcalico.org/v3.22/manifests/calico.yaml

kubectl

calico-kube-controllers-7c87c5f9b8-klb7d

1/1

kube-controller-manager-kube-master

1/1