Table of Contents

1. Challenge

   Start the Minikube Cluster Using the Correct Driver

   Issue the command to start Minikube

   sudo minikube start --vm-driver none
   

2. Challenge

   Unpack Helm, Move it into the Path, Install Socat and Run helm init

   Unpack the helm.tar.gz file that is sitting in our home directory:

   tar -xvzf ~/helm.tar.gz
   

   Move the helm and tiller executables into the path at /usr/local/bin:

   sudo mv ./linux-amd64/helm /usr/local/bin
   sudo mv ./linux-amd64/tiller /usr/local/bin
   

   To test, run helm version from our home directory. This means it's in our path and we can run helm commands from anywhere.

   Initialize Helm:

   sudo helm init
   

   Check that helm and tiller are up and available:

   sudo helm version
   

   Helm requires socat in order to run, but it is already installed on your lab server.

3. Challenge

   Install the Robot-Shop Application into Its Own Namespace via Helm

   Get into the directory containing the Helm chart:

   cd ~/robot-shop/K8s/helm
   

   Create the name space:

   sudo kubectl create namespace robot-shop
   

   Run the Helm installation:

   sudo helm install --name robot-shop --namespace robot-shop .
   

   Verify that the pods are running:

   sudo kubectl -n robot-shop get po
   

   It might take a couple of minutes for all the pods to stand up.

4. Challenge

   Edit the Web Service to Use Nodeport and Configure Nginx to Proxy to the Web Service

   Edit the web service:

   sudo kubectl -n robot-shop edit service web
   

   Edit the service spec similar to this (changing LoadBalancer to NodePort):

     selector:
       service: web
     sessionAffinity: None
     type: NodePort
   

   Make sure our change took effect:

   sudo kubectl -n robot-shop get service web
   

   Get the target port from Minikube:

   sudo minikube service list
   

   Pay attention to TARGET PORT on web. We'll need that in a minute.

   Configure Nginx to proxy to the target port from service list. Get the file open for editing:

   sudo vim /etc/nginx/sites-enabled/default
   

   Now, down at about line 50, we've got to change something in the location section. We'll paste that TARGET PORT we saw earlier in here, replacing the existing line with what's shown here (the proxy_pass line):

   location / {
           # First attempt to serve request as file, then
           # as directory, then fall back to displaying a 404.
           proxy_pass http://<minikube IP>:<svc port>;
   

   Our changes should take effect after an Nginx restart:

   sudo systemctl restart nginx
   

   Open a browser and point it to our server's public IP address to ensure the application is running.