62 lines
2.4 KiB
Plaintext
62 lines
2.4 KiB
Plaintext
; PHP-FPM pool configuration for PHP 7.4, optimized for WordPress in a container.
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[www]
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; Listen on a TCP socket. This is standard for containerized setups
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; where Nginx and PHP-FPM are in separate containers.
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listen = 0.0.0.0:9000
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; Run as the non-root 'app' user for security.
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user = app
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group = app
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; Use the 'dynamic' process manager to scale child processes based on demand.
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; This is memory-efficient for sites with variable traffic.
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pm = dynamic
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; The maximum number of child processes to be created.
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; This is the most important setting. The value depends on available RAM.
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; A typical WordPress process can use 30-60MB RAM. 10 children = ~300-600MB.
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; Adjust this based on your container's memory limit.
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pm.max_children = 10
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; The number of child processes created on startup.
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pm.start_servers = 2
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; The minimum number of idle processes. If less than this, new ones will be created.
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pm.min_spare_servers = 1
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; The maximum number of idle processes. If more than this, some will be killed.
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pm.max_spare_servers = 3
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; The number of requests each child process should execute before respawning.
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; This is a crucial feature to prevent memory leaks from third-party code or plugins.
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pm.max_requests = 500
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; The timeout for serving a single request after which the worker process will be killed.
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; Helps prevent long-running scripts from tying up resources.
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request_terminate_timeout = 300s
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; The timeout for serving a single request after which a PHP backtrace will be
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; dumped to the slowlog. Useful for debugging performance issues.
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request_slowlog_timeout = 5s
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slowlog = /var/log/php/www-slow.log
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; Force all PHP errors into the container log stream so kubernetes/docker can collect them.
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php_admin_flag[log_errors] = on
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php_admin_value[error_log] = /proc/self/fd/2
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; Redirect worker stdout and stderr to the main error log.
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; This ensures that any `echo` or `var_dump` calls from workers are captured in the container logs.
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catch_workers_output = yes
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; Allow worker processes to write to stderr, which is essential for container logging.
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decorate_workers_output = no
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; We are logging errors to stderr in zz-hardening.ini, so we can disable the FPM access log
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; to avoid redundant logging and improve performance. Nginx should handle access logging.
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; access.log = /var/log/php/www-access.log
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; Ensure that PHP-FPM does not clear environment variables.
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; This is important for passing variables from the container runtime (e.g., Docker Compose).
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clear_env = no
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