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Labs

Minikube: Troubleshooting Installation Issues

In this hands on lab we will be attempting to correct a broken Minikube cluster. In this instance the `minikube start` command will not complete. We will need to correct the issue and get the cluster working. I highly recommend that you attempt this lab without looking at the solution or the commands. Good luck!

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Path Info

Level
Clock icon Beginner
Duration
Clock icon 30m
Published
Clock icon Nov 26, 2019

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Table of Contents

  1. Challenge

    Start the Minikube Cluster

    Issue the command to start Minikube:

    minikube start
    

    The first error we see is a permission denied type, so let's look at permissions:

    ls -la
    

    We'll see that the minikub directory is owned by root, so let's change that:

    sudo chown -R $USER /home/cloud_user/.minikube
    

    Now when we run minikub start again, we get an error about VBoxManage not found. This is because we're set up to download a VM boot image and create a VirtualBox VM. We don't have VitrualBox, because we're already on a cloud user. Our current VM driver is set to VirtualBox (which we can see with minikub config view), and we've got to change that. We're going to set it to none:

    minikube config set vm-driver none
    

    Now let's try starting again, with this:

    sudo minikube start
    

    This time around, we'll get an error about an unspported version of Kubernetes. We need to be running 1.16.1, and it looks like we're trying here to run 1.11.0*. Let's fix that with a configuration command, then try to start Minikub again:

    minikube config set kubernetes-version 1.16.1
    sudo minikube start
    

    Now we've got an error telling us that the Docker executable is not in the $PATH. Is Docker even installed? Let's fix that and try again:

    sudo apt install -y docker.io
    sudo minikube start
    

    This time, we made it through the install. But wait! What is the status of Minikub? Find out with this:

    minikube status
    

    Ahh, we're getting another permission denied error. We don't have permission to open ~/.minikub/machines/minikub/config.json. We'll get another one if we try to get our pod status:

    kubectl get po
    

    This error tells us that we don't have permission to access ~/.kube/config.

    We will need to take ownership of the .minikube and .kube directories:

    sudo chown -R $USER /home/cloud_user/.kube
    sudo chown -R $USER /home/cloud_user/.minikube
    
    

    Now when we execute minikub status, we'll see that everything is running and configured. Then kubectl get po -A will show us the cluster, up and running.

  2. Challenge

    Create the Objects in the Local Folder YAML Files to Verify That the Cluster Is Working

    Create the objects:

    kubectl apply -f /home/cloud_user/local
    

    Now we can verify that the objects were created:

    kubectl get po
    kubectl get pv
    kubectl get pvc
    

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