Installing Kubernetes Cluster (1 Master and 2 Worker Nodes) using Vagrant (Kubeadm installation) Pod Network :- Calico Container Runtime...
Installing Kubernetes Cluster (1 Master and 2 Worker Nodes) using Vagrant
(Kubeadm installation)
Pod Network:- Calico
Container Runtime: containerd
- Step 1:- Download Virtual Box and install it on your OS
- Step 2:- Download Vagrant and Install it (It needs to ask for restart).
- Step 3:- Download Git and Install it.
- Step 4:- Clone the git repo using the command
git clone https://github.com/kmitsolution/k8s.git - Step 5:- Once Step 4 is executed successfully then you will get one folder k8s in the current directory
- Under k8s there is one more folder K8s-Vagrant
- Change directory K8s-Vagrant/ on the command terminal
- Step 6:- Install some vagrant plugins by running the below command
vagrant plugin install vagrant-vbguest - Step 7:- Run the below command to create Kubernetes Cluster (It will take around 10-15 mins)
vagrant up - If you get any error in Step 7 then you can run the command for each node seprately like
vagrant up kmaster
vagrant up kworker1
vagrant up kworker2
- Step 8:- Connect to the Master server
vagrant ssh kmaster
- mkdir -p $HOME/.kube
- sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
- sudo chown $(id -u):$(id -g) $HOME/.kube/config
- Run the below command to check all nodes are in cluster and in ready state
kubectl get nodes
Note:- If it shows only master node or it shows the master and worker nodes but worker nodes are not in the ready state then run below command on the master node to print the token.
cat /joincluster.sh
Copy the join command and run it on worker1 and worker2
- Step 9:- Verify the cluster is in ready state
kubectl get nodes
hi raman
ReplyDeletehow to go into the worker node
if i do ssh kworker1 it is asking password and we dont have password
Please run these command if you want run cluster from local machine
ReplyDeletemkdir -p $HOME/.kube
cp configs/config $HOME/.kube
Please confirm Raman sir ?
mkdir -p $HOME/.kube
ReplyDeletesudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
root@ubuntu2004:/home/vagrant# kubectl get nodes
ReplyDeleteThe connection to the server localhost:8080 was refused - did you specify the right host or port?
root@ubuntu2004:/home/vagrant#
root@ubuntu2004:/home/vagrant#
root@ubuntu2004:/home/vagrant# mkdir -p $HOME/.kube
root@ubuntu2004:/home/vagrant# sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
cp: cannot stat '/etc/kubernetes/admin.conf': No such file or directory
Got above error while copying admin.conf file , kubernetes folder is not available in Master.
Kindly help here .