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Centos7 system deployment K8s cluster example analysis, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something.

Version 1, planning version 1.1 information: name version number kernel 3.10.0-1160.el7.x86_64 operating system CentOS Linux release 7.9.2009 (Core) docker20.10.11kubeadm1.23.0kubelet1.23.0kubectl1.23.01.2 cluster planning IPhostname192.168.0.114k8s-master192.168.0.115k8s-node01192.168.0.116k8s-node022. Deployment

Description:

Step 1 ~ step 8, all nodes operate the master node: step 9, step 10 node node: step 11, turn off the firewall

Turn off: systemctl stop firewalld

Permanent shutdown: systemctl disable firewalld

2. Close selinux

Off: setenforce 0

3. Close swap

Temporary shutdown: swapoff-a

Permanently close: sed-ri's Unip. Hammer swap.soccer swap.hammer raceme / etc/fstab, use this command to comment out code with swap lines

Inspection: free-m

4. Add the corresponding relationship between hostname and IP

Add a mapping relationship to / etc/hosts according to the planning in 1.2

192.168.0.114 k8s-master192.168.0.115 k8s-node01192.168.0.116 k8s-node025, the chain that passes bridged IPV4 traffic to iptables

Use the following command to add a configuration:

Cat > / etc/sysctl.d/k8s.conf / etc/yum.repos.d/kubernetes.repo

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