Create Kubernetes Cluster with MariaDB and phpmyadmin

[FreekOrdina]

Purpose Get familiar with running Kubernetes cluster on Azure and run some simple out-of-the-box applications.

Get most simple Kubernetes Cluster up and running, a database and the phpmyadmin webapplication to access the database over the web.

Subtasks:

• [x] Run Kubernetes cluster
• [x] Create deployment for mariadb
• [x] Create deployment for phpmyadmin
• [x] Create service such that mariadb and phpmyadmin can communicate
• [x] Add port forwarding to phpmyadmin

When finished we should be able to access phpmyadmin by something like: https://ampersand-rap.azurewebsites.net:8080

[Michiel-s]

For the non-RAP specific applications (like the database, phpmyadmin and ingress controller) my suggestion is to use Helm.

Documentation on that:

• MariaDB: https://bitnami.com/stack/mariadb/helm
• Phpmyadmin: https://bitnami.com/stack/phpmyadmin/helm
• Ingress controller: https://kubernetes.github.io/ingress-nginx/
• Cert-manager: https://cert-manager.io/docs/installation/helm/

For NGINX, use the version provided on kubernetes.github.io (not by NGINX itself)