Improve health checks

[jaydrogers]

Problem

If we only allow health checks to be to/ping, this only verifies the PHP stack is online (and not actually the applicaiton)

What this PR does

• Introduces a new variable called HEALTHCHECK_PATH (default: /ping)
• This allows users to change to Laravel 11's Health Check route

🎥 Video

Check this video for more details: https://twitter.com/jaydrogers/status/1790726134981706185

Example Health Check

HEALTHCHECK --interval=5s --timeout=3s --retries=3 \
    CMD [ "sh", "-c", "curl --insecure --silent --location --show-error --fail http://localhost:8080$HEALTHCHECK_PATH || exit 1" ]

ToDos

### Complete Healthcheck update for
- [x] FPM-NGINX
- [x] FPM-Apache
- [x] Unit
- [x] FPM
- [x] Add documentation

Health Check Checklist

The following items should be checked on updating the health checks:

All

• Dockerfile has correct and updated healthcheck
• Environment variable is set to correct default

  S6

• [x] data/check script has been updated

  Apache

• [x] Redirect all localhost requests to proper HTTPS port when SSL_MODE is full

  Unit

• [x] Redirect all localhost requests to proper HTTPS port when SSL_MODE is full

  Testing

• Works in Bookworm
• Works in Alpine

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View logs

[AlejandroAkbal]

Please don't introduce breaking changes like these without communicating or upgrading major versions

My applications have been failing just because the old /ping endpoint does not work :/

[jaydrogers]

Sorry for the breaking change! I didn’t think it was going to cause problems like that.

If you have a lot of automation in your environment, I would suggest locking into a version like this: https://hub.docker.com/r/serversideup/php/tags?page=1&page_size=&ordering=-name&name=8.3-fpm-nginx-v

Also, be sure to subscribe to releases here https://serversideup.net/open-source/docker-php/docs/getting-started/upgrade-guide#subscribe-to-repository-updates