The shared httpd serves files from /mnt/users/{user}/{domain}/public_html
but PHP-FPM containers have them at /home/{user}/public_html. When Apache
proxied PHP requests via fcgi, SCRIPT_FILENAME pointed to the Apache path
which doesn't exist inside the FPM container, causing "File not found".
Added ProxyFCGISetEnvIf to rewrite SCRIPT_FILENAME from the shared httpd
path to the FPM container path before proxying the request.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Separate Apache and PHP-FPM into distinct container roles to reduce
per-customer memory overhead on shared servers. Adds three new images:
- Dockerfile.fpm: PHP-FPM only (no Apache), listens on TCP port 9000
- Dockerfile.shared-httpd: Apache only (no PHP), with SSL and proxy_fcgi
- Existing Dockerfile unchanged for standalone mode
Key changes:
- detect-memory.sh: CONTAINER_ROLE env var (combined/fpm_only/httpd_only)
controls the memory budget split
- create-php-config.sh: FPM_LISTEN env var for TCP port vs Unix socket,
added /fpm-ping and /fpm-status health endpoints
- New entrypoints for each container role
- tune-mpm.sh for hot-adjusting Apache MPM settings
- shared-vhost-template.tpl with proxy_fcgi and SSL on port 443
- CI/CD builds all three image types in parallel
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
