Help needed: No output from php://stdout in frankenphp log

[jchmielniak]

Hi,

I have a simple app with PHP 8.3/Laravel/Octane which I want to put in container. I use Laravel sample logging config 'single':

        'single' => [
            'driver' => 'single',
            'path' => 'php://stdout',
            'level' => env('LOG_LEVEL', 'debug'),
            'replace_placeholders' => true,
        ],

Starting this app (without container) with: php artisan octane:frankenphp --log-level=debug produces caddy access log, but no application logging is shown. If I set path to 'php://stderr' - it works as expected. Of course it works as well if I log to a file.

Is there some configuration I am missing to emit application log on stdout to caddy/frankephp logger?

[AlliBalliBaba]

When logging to stdout, don't you have to use a configuration like this?

'stdout' => [
    'driver' => 'monolog',
    'level' => env('LOG_LEVEL', 'debug'),
    'handler' => StreamHandler::class,
    'formatter' => env('LOG_STDERR_FORMATTER'),
    'with' => [
        'stream' => 'php://stdout',
    ],
    'processors' => [PsrLogMessageProcessor::class],
],

[calvinalkan]

It's because laravel octane runs frankenphp as a sub process and then forwards the output.

I just run it directly with a custom caddyfile. Much less hassle.

# in the dockerimage.
CMD ["frankenphp", "run", "-c", "/etc/caddy/Caddyfile"]

And a custom bootstrap stub in public/frankenphp-worker.php

<?php

// These env vars are required for the octane bootstrap file to work.
$_SERVER['MAX_REQUESTS'] = $_SERVER['LARAVEL_OCTANE_MAX_WORKER_REQUESTS'];
$_SERVER['REQUEST_MAX_EXECUTION_TIME'] = $_SERVER['LARAVEL_OCTANE_MAX_EXECUTION_TIME'];
$_SERVER['APP_BASE_PATH'] = dirname(__DIR__);
$_SERVER['APP_PUBLIC_PATH'] = $_SERVER['APP_BASE_PATH'].'/public';

require dirname(__DIR__).'/vendor/laravel/octane/bin/frankenphp-worker.php';

[jchmielniak]

Looks great, could you please share your Caddy file. Thanks.

07.12.2024 15:15:49 Calvin Alkan @.***>:

It's because laravel octane runs frankenphp as a sub process and then forwards the output.

I just run it directly with a custom caddyfile. Much less hassle.

in the dockerimage.

CMD ["frankenphp", "run", "-c", "/etc/caddy/Caddyfile"]

And a custom bootstrap stub in public/frankenphp-worker.php

[calvinalkan]

{
        # The server only runs on port 80 behind a reverse proxy.
        # We don't https.
        auto_https off

        # No reason to add certificates in local dev.
        # Caddy only runs in docker.
        skip_install_trust

        log {
                level {$CADDY_GLOBAL_LOG_LEVEL}
                output stderr
        }

        servers {
           metrics
        }

        frankenphp {
                {$FRANKENPHP_NUM_PHP_THREADS_OPTION}
                worker {
                        file public/frankenphp-worker.php
                        {$CADDY_FRANKENPHP_WORKER_WATCH_OPTIONS}
                        {$FRANKENPHP_NUM_WORKERS_OPTION}
                }
        }
}

http://:80 {
        log {
                level {$CADDY_SERVER_LOG_LEVEL}
                output stderr
        }

        handle /app-ping {
            respond "app pong" 200
        }

       # Security headers
       header {
                # Allow Livewire to work while keeping external requests blocked
                # There is https://github.com/spatie/laravel-csp to further secure this.
                Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'"

                # Prevent MIME type sniffing
                X-Content-Type-Options "nosniff"

                # Prevent iframe embedding
                X-Frame-Options "DENY"

                # Force HTTPS for 2 years, including subdomains
                Strict-Transport-Security "max-age=63072000; includeSubDomains; preload"

                # Send full URL for same-origin, only origin for HTTPS cross-origin, nothing for HTTP
                Referrer-Policy "strict-origin-when-cross-origin"
        }

        @immutable_assets {
                path /build/* /vendor/*
        }
        header @immutable_assets Cache-Control "public, max-age=31536000, immutable"

        route {
                root public

                # Perform compression here, so that we need to send less data to the reverse proxy.
                encode zstd br gzip

                php_server {
                        index frankenphp-worker.php
                        # Required for the public/storage/ directory...
                        resolve_root_symlink
                }
        }
}

[Huggyduggy]

Had the same issue a while ago, logging to stderr instead of stdout solved the issue for us. As log levels are set explicitly anyhow, this does not affect logging services.