Racher add / delete node

List of articles

• ​ ​ I. add nodes ​​

• ​ ​` Modify the server hostname `​​
• ​ ​` Turn off firewall `​​
• ​ ​` install docker`​​
• ​ ​` increase node node `​​

• ​ ​ Two 、 Delete node ​​

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I. add nodes

​​ Modify the server hostname ​​

Log in and copy

      
      

       
       hostnamectl set-hostname   Host name 
      
      
      
      

       
       
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​​ Turn off firewall ​​

Log in and copy

      
      

       
       systemctl 
       
       stop firewalld
       
       
systemctl disable firewalld
      
      
      
      

       
       
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​​ install docker​​

Shell Script installation Docker( Binary version )

​​ increase node node ​​

Log in to rancher The front desk （rancher edition ：v2.3.8）

overall situation → Select a cluster

host

Click Edit cluster in the upper right corner

Pull to the bottom , Copy command

To the new node Node execution , After a while

Two 、 Delete node

To the deleted node

Log in and copy

      
      

       
       docker 
       
       rm 
       
       -f 
       
       -v 
       
       $(docker ps -aq)
       
       
docker volume 
       
       rm 
       
       $(docker volume ls)  
       
       # Delete all of the nodes volume
       
       

       
       rm 
       
       -rf /var/lib/rancher
      
      
      
      

       
       
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