[cloud native] 3.1 kubernetes platform installation kubespher

  hello ~ Hello, everyone , Welcome to the new chapter , In this article, let's see how to k8s Come up and install KubeSpher.

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Catalog

One 、 What is? KubeSpher？

Two 、KubeSphere Platform installation

1、 install nfs-server 

Two 、 install metrics-server

3、 ... and 、 Deploy KubeSphere

1、 Execute the following command to start the installation

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One 、 What is? KubeSpher？

KubeSphere Is based on Kubernetes Distributed build 、 multi-tenancy 、 Multi cluster 、 Enterprise open source container platform , It has powerful and perfect network and storage capabilities , And through the simple human-computer interaction to provide a perfect multi cluster management 、CI/ CD、 Micro service governance 、 Application management and other functions , Help businesses in the cloud 、 Build quickly on heterogeneous infrastructure such as virtualization and physical machines 、 Deployment and operation and maintenance container architecture , Realize agile development and full life cycle management of application .

Official website ：QKCP Enterprise container platform | Qingyun QingCloud

Two 、KubeSphere Platform installation

choice 4 nucleus 8G（master）、8 nucleus 16G（node1）、8 nucleus 16G（node2） Three machines , Pay as you go experiments .

Suppose your machine is not installed  Docker、 No installation  Kubernetes、 No cluster , Then you can see the article written before , There are explanations in it , Let's start with the front-end environment .

1、 install nfs-server 

requirement ： If you need to be in Kubernetes Installation on KubeSphere v31.1.1, Your Kubernetes Version must be : 1.17.x、1.18.x、1.19.x or 1.20.x.
Make sure your machine meets the minimum hardware requirements : CPU > 1 nucleus , Memory > 2 GB.
Before installation , Need configuration Kubernetes In the cluster Default storage type .

First install tools on each machine

yum install -y nfs-utils

stay master Execute the following command  

echo "/nfs/data/ *(insecure,rw,sync,no_root_squash)" > /etc/exports

Execute the following command , start-up nfs service ; Create shared directory

mkdir -p /nfs/data

stay master perform

systemctl enable rpcbind
systemctl enable nfs-server
systemctl start rpcbind
systemctl start nfs-server

Make configuration effective

exportfs -r

Check if the configuration works

exportfs

Then create a storage class , Specify yourself nfs Server address and nfs Server shared directory

 

 

 

  Confirm that the configuration is in effect

kubectl get sc

Two 、 install metrics-server

（ Cluster indicator monitoring component ）

 

3、 ... and 、 Deploy KubeSphere

After making sure your machine meets the prerequisites for installation , You can follow these steps to install KubeSphere.

1、 Execute the following command to start the installation

kubectl apply -f https://github.com/kubesphere/ks-installer/releases/download/v3.3.0/kubesphere-installer.yaml
   
kubectl apply -f https://github.com/kubesphere/ks-installer/releases/download/v3.3.0/cluster-configuration.yaml

notes ： The installation may fail here , So use the command  yum install -y wget 

Enter the command to install

kubectl apply -f kubesphere-installer.yaml

kubectl apply -f cluster-configuration.yaml

 

Check the installation progress

kubectl logs -n kubesphere-system $(kubectl get pod -n kubesphere-system -l app=ks-install -o jsonpath='{.items[0].metadata.name}') -f

  Remember to release the port

Enter... On the website  139.198.165.238:30880, Then you can access it , Use the provided account and default password （ The first login will require changing the password ）

 

If you want to Linux The above single node deployment KubeSphere Or you want to deploy multiple nodes KubeSphere Words , You can check it in the official documents

 （ Please pay attention to ） Ongoing update ……