sealos

Introduction

Build a production kubernetes HA cluster.

• Every node config a ipvs proxy for masters LB, so we needn't haproxy or keepalived any more.
• Then run a lvscare as a staic pod to check apiserver is aviliable. /etc/kubernetes/manifests/sealyun-lvscare.yaml
• If any master is down, lvscare will remove the ipvs realserver, when master recover it will add it back.
• Sealos will send package and apply install commands, so we needn't ansible.

Quick Start

PreInstall

• Install and start docker
• Download kubernetes offline package copy it to /root.
• Download latest sealos on release page.
• Support kuberentes 1.14.0+

Install

sealos init --master 192.168.0.2 \
    --master 192.168.0.3 \
    --master 192.168.0.4 \              
    --node 192.168.0.5 \                 
    --user root \                        
    --passwd your-server-password \      
    --pkg-url /root/kube1.14.1.tar.gz     

Thats all!

--master   masters list
--node     nodes list
--user     host user name
--passwd   host passwd
--pkg-url  you offline package location

Other flags:

 --kubeadm-config string   kubeadm-config.yaml local 
 --vip string              virtual ip (default "10.103.97.2") 

Clean

sealos clean \
    --master 192.168.0.2 \
    --master 192.168.0.3 \
    --master 192.168.0.4 \           
    --node 192.168.0.5 \              
    --user root \                    
    --passwd your-server-password

Add nodes

Using super kubeadm:

cd kube/shell && init.sh
echo "10.103.97.2 apiserver.cluster.local" >> /etc/hosts   # using vip
kubeadm join 10.103.97.2:6443 --token 9vr73a.a8uxyaju799qwdjv \
    --master 10.103.97.100:6443 \
    --master 10.103.97.101:6443 \
    --master 10.103.97.102:6443 \
    --discovery-token-ca-cert-hash sha256:7c2e69131a36ae2a042a339b33381c6d0d43887e2de83720eff5359e26aec866

More infomations

About LVScare

This can care your masters ipvs rules.

About super kubeadm 简体中文,kubernetes v1.14.0+

简体中文

简体中文老版本

sealos 1.x docs

More offline packages