10. Kubernetes

Activity 10.01: Installing the Panoramic Trekking App on Kubernetes

Solution:

It is possible to create the database and Panoramic Trekking App with the following steps:

1. Install the database with the following helm command:

   helm install database stable/postgresql --set postgresqlPassword=kubernetes

   This will install multiple Kubernetes resources for PostgreSQL and show a summary as follows:

   Figure 10.23: Database installation

   This output first lists Helm chart-related information such as name, deployment time, status, and revision, followed by information related to the PostgreSQL instance and how to access it. This is a widely accepted method in Helm charts to give such information following the installation of a chart. Otherwise, it would be difficult to learn how to connect to the applications installed by Helm.

2. Create a statefulset.yaml file with the following content:

   apiVersion: apps/v1
   kind: StatefulSet
   metadata:
     name: panoramic-trekking...