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File Date Author Commit
 php 2021-09-19 Gabriele Gabriele [f5bc86] Project php-pgsql-redis
 postgresql 2021-09-19 Gabriele Gabriele [f5bc86] Project php-pgsql-redis
 redis 2021-09-19 Gabriele Gabriele [f5bc86] Project php-pgsql-redis
 LICENSE 2021-09-18 Gabriele Gatto Gabriele Gatto [e278d1] Initial commit
 README.md 2021-09-18 Gabriele Gatto Gabriele Gatto [9f26be] Update README.md
 deploy.sh 2021-09-19 Gabriele Gabriele [0bebb1] comments

Read Me

PHP + POSTGRESQL + REDIS in K8s

Challenge

This project shows how to create a setup for a local env with PHP, PGSQL, and REDIS in K8s that could be used for day-to-day development.

It is tested locally, but it can be used also for pipeline like the gitlab-ci, or using your own docker-registry or DigitalOcean / Heroku and tested in the cloud like Azure, AWS EKS...

Working with helm charts/kustomization/docker-compose and recently mostly with GitOps in AWS in an awesome infra with Flux+CrossPlane+SOPS+Traefik+Calico, I'll consider this project a basic project that shows a multi-approach to configure the kube environments.
It is using the normal k8s base64 secrets, but can be configured also with secret-manager/rotation ect..

graph LR
A[Browser Requests] -- REVERSE PROXY --> B([PHP8-BACKEND]) 
B -- READ DATA--> C{PostgreSQL}
C --> D([PHP8-BACKEND])
D -- STORE DATA --> E{Redis}
E --> F([PHP8-FRONTEND])
F --> G[Browser Results]

In this projecy you'll find few:

  • Elementary BASH scripting.
  • Elementary PHP scripting.
  • Elementary Docker knowlodge.
  • Elementary Kubectl knowlodge.
  • Elementary Linux knowlodge.
  • Elementary Redis/NOSQL knowlodge.
  • Elementary PGSQL knowlodge.
  • How to build a docker image.
  • How to use ConfigMaps / Secrets / Replica / envs
  • How to use the networks and the persistent volumes.

Files / Folders

WHERE WHAT WHY
/deploy.sh To run with args start / stop' Makes the pods and forward the APP port 8000 to localhost
/php/ Contains the docker build folder with the PHP code APP and the Kube manifests to deploy. NGINX Proxy to serve PHP8-PFM
/postgresql/ Contains the Kube POSTGRESQL manifests to deploy. Sample employees data to load
/redis/ Contains the Kube REDIS manifests to deploy. Basic Redis with AUTH

Get ready!

The Kube project is composed of 3 components:

  1. A PHP-FPM + NGINX as Deployment
  2. A Postgres database as StateFulSet.
  3. A Redis server as a caching server as Deployment.

The bash script ./deploy.sh will create the ENV to test it locally.

:~# chmod a+x deploy.sh
:~# ./deploy.sh start

  • It builds a PHP8-FPM docker image named 'php' with the APP files, and the necessary libraries to run PostgreSQL and Redis (similar to a pipeline stage).

  • Then the script will deploy the pods (deployments, configmaps, secrets, services)

  • You can visit https://localhost:8000 from your browser the result.

Get down!

The bash script ./deploy.sh will shutdown the ENV.

:~# ./deploy.sh stop

Remove Docker images

:~# docker image prune -a
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