Test deployment

Now that our job ran successfully, let's validate our application is running. To do this, we will run kubectl get svc once more.
This time, we should see two **additional services: goof and goof-mongo** which correspond to the deployment and services configurations from our Kubernetes manifest. Recall that in our ./deployment/goof-service.yaml we defined this as our frontend app with type LoadBalancer listening on the standard http port 80.

Install jq

You can just as well copy and paste results into your clipboard, but we will take a different approach and use some command-line magic to achieve better results. Let's start by installing a command-line JSON processor jq using Homebrew.
brew update && brew install jq
Next let's create an environment variable GOOF_HOST and pass the value of EXTERNAL-IP for our goof service in one command.
GOOF_HOST=$(kubectl get svc goof -o json | \
jq -r '.status.loadBalancer.ingress[].hostname')
Let's make sure it worked and type echo $GOOF_HOST on the terminal command-line and see the results. We should see the a return value that matches our EXTERNAL-IP. Next, we are going to perform a simple test to see if our application is serving requests. For this, we will run a simple curl command and browse ./public/about.html. Your results should look similar to the following:
If you prefer, you can also launch your favorite web browser and navigate to the EXTERNAL-IP of our LoadBalancer as shown below: