- A Cloud Guru
Minikube: Using Local Storage
In this hands-on lab, we will be creating a static volume and then mapping that volume into our pod on our Kubernetes cluster. We will be using predefined YAML files for this, and manually building each object from those files.
Table of Contents
Start the Minikube Cluster (Remember to Use the Correct Driver)
Issue this command:
sudo minikube start --vm-driver none
Using the Provided YAML Files, Create a Volume with a Local Mapping and then a Claim and Pod for that Volume
localfolder in the
cloud_userhome directory, and get into it:
ls cd local
In this directory inspect the
cat) and locate the local mapping:
hostPath: path: "/home/cloud_user/html"
Create the directory indicated in the hostPath:
In this directory create an
echo 'this is the local index' >> /home/cloud_user/html/index.html
Create the volume and PersistentVolumeClaim and ensure that they are bound:
sudo kubectl apply -f /home/cloud_user/local/pv-hostPath-volume.yaml sudo kubectl apply -f /home/cloud_user/local/pv-hostPath-claim.yaml sudo kubectl get pv # this output should show the volume status as Available sudo kubectl get pvc # this output should show Bound
Now let's create the Nginx pod and then run
curlon the pod IP to ensure that the custom index loads:
sudo kubectl apply -f /home/cloud_user/local/pv-hostPath-pod.yaml sudo kubectl get po -o wide
There's going to be an IP address in the output of that command. We need it in this next command:
We should see what we put in the
index.htmlfile earlier. Now, to see the power of what we've done here, let's append to that file:
echo 'this is a new line' >> /home/cloud_user/html/index.html
Then we'll run that
curlcommand again, and see that our new content is showing up -- without having to restart the container!
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.