PHP App

This is a Simple PHP apps that read a config.json file and output the content on the screen. The example is made to run as a Container that mount the config file as a volume.

Pre requisit

1. Podman or Docker to build the image
2. Access to a container registry. In this case we use Quay.io
3. Access to an Openshift 4.X installation

Demo

Retrieve/build the image

There is 2 options to retrieve the require image for this demo.

• Option 1

  Build the container from a Fork or Clone of this repository and uploaded to your container registry.

Example using podman:

• Build the image

  podman build -t php-json-reader .
  

• Test running the image localy.

  podman run --name php-reader -d -p 8080:8080 localhost/php-json-reader
  

  The image can now be access at http://localhost:8080

  ⚠️ The config file doesn't display since no volume is mounted.

• Stop the container

  podman stop php-reader
  

• Tag the image

  podman *tag localhost/php-json-reader [YOUR_REGISTRY_URL]/php-json-reader:stable
  

• Push the image

  podman push [IMAGE_TAG_CREATE_BEFORE]
  

• Option 2

  Use the image that was already build found at

  quay.io/froberge/php-json-reader:stable
  

Create the new Application

1. Create a new project.

   oc new-project php-demo
   

2. Create a new-app. For this command we use option 2

   oc new-app --name php-reader --docker-image=quay.io/froberge/php-json-reader:stable --as-deployment-config=true
   

3. Expose the application

   oc expose services/php-reader
   

Create the needed secrets

oc create secret generic app-config --from-file=docs/config.json

Add the secrets to the Deployment Config

oc set volume dc/php-reader --add  --type=secret  -m /opt/config.json --name php-json-vol --secret-name app-config --sub-path config.json

⚠️ You might have to scale down and up for the pod to see the changes.