Kubernetes NGINX-Ingress + Wordpress9.5 + MariaDB + Persistent Volumes

Description

This is a template project for deploy on Kubernetes (Minikube) a Wordpress 9.5 application with well-optimized nginx ingress controller, config Maps, secrets and more.

• Author: Gonzalo Plaza gonzalo@verize.com
• Version: 1.0.0

Requirements:

• Minikube installed locally
• Kubectl v1.11.1

Reference

• https://hub.docker.com/r/bitnami/wordpress/
• https://hub.docker.com/r/bitnami/mariadb/

Installation:

Generate certs manually:

$ mkdir certs
$ openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout ./certs/tls-key.key -out -/certs/tls-cert.crt  

Create k8s secret for certs:

$ kubectl create secret tls tls-certificate --key ./certs/tls-key.key --cert ./certs/tls-cert.crt
$ kubectl label secret tls-certificate app=wpdemo

Create Resources (Services, Ingress, Deployments ...):

$ kubectl apply -f secrets.yaml
$ kubectl apply -f db-tier-deployment.yaml
$ kubectl apply -f app-tier-deployment.yaml
$ kubectl apply -f nginx-ingress.yaml

Create local host for minikube.io domain (or edit it)

• Adds minikube.io to /etc/hosts file with Minikube cluster ip
• Example: 192.168.99.100 minikube.io

To get cluster IP:

$ minikube ip //Get Kubernetes Cluster IP

Test it!

$ minikube dashboard //Check cluster resources

Access https://minikube.io

Demo Wordpress Credentials:

• username: admin
• password: Demo12345!

Delete all resources

$ kubectl delete svc,pv,pvc,deployments,pods,secrets,ingress -l app=wpdemo

TODO:

• Optimize NGINX Ingress configuration
• Generate installation sh script
• Configuration documentation