Kubernetes one of the cluster deployments system environment initialization

Installation version:

CentOS   version:        7.4docker   version:        18.03.1-cekubectl  version:        v1.10.1etcdctl  Version:        3.2.18Flannel  version:       v0.10.0

Basic architecture:

IP Address	Host Name	Service
10.200.3.105	K8s-master	Etcd/docker/kube-apiserver/kube-controller-manager/kube-scheduler/flannel
10.200.3.106	K8s-node-1	Etcd/docker/kube-proxy/kubelet/flannel
10.200.3.107	K8s-node-2	Etcd/docker/kube-proxy/kubelet/flannel

1. Turn off SELinux and firewalls

#systemctl Disable Firewalld.service#systemctl Stop Firewalld.service

2. Set the host name:

# hostnamectl--static set-hostname k8s-master# hostnamectl--static set-hostname k8s-node-1# hostnamectl--static set-ho Stname k8s-node-2

3. Set/etc/hosts to ensure that the hostname resolves

10.200. 3.105    k8s-Master10.200. 3.106    k8s-node-110.200. 3.107    k8s-node-2

4. Set up SSH password-free login to all other nodes of the deployment node

[Email protected] ~]# Ssh-keygen-t RSA    [[email protected]-master ~]# ssh-copy-id k8s-master[[ Email protected]-master ~]# ssh-copy-id k8s-node-1[[email protected]-master ~]# Ssh-copy-id k8s-node-2

5. Installing Docker

Step one: Use a domestic docker source

[Email protected] ~]# cd/etc/yum.repos.d/[[Email protected]-Master yum.repos.d]# wget> https://Mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo--2018- to- -  -: -: ---HTTPS://Mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repoResolving mirrors.aliyun.com (mirrors.aliyun.com) ...103.15.99.96,103.15.99.93,103.15.99.94, ... Connecting to Mirrors.aliyun.com (mirrors.aliyun.com)|103.15.99.96|:443... connected. HTTP request sent, awaiting response ... $oklength:2640(2.6K) [application/octet-Stream] Saving to: ' Docker-Ce.repo ' -%[===========================================================================================>]2,640--.-k/sinch0s2018- to- -  -: -: the(63.8MB/s)-' Docker-ce.repo ' saved [2640/2640]

Step Two: Docker installation:

[email protected] yum.repos.d]# Yum install-y docker-ce

Step three: Start the background process:

[[email protected] ~]# Systemctl start Docker

6. Prepare the Deployment directory

#mkdir-P/opt/kubernetes/{cfg,bin,ssl,log}

　　

Kubernetes one of the cluster deployments system environment initialization