/ 
PAGI-0.001012
/ pagi-server

NAME

pagi-server - PAGI application server

SYNOPSIS

pagi-server [options] [app] [key=value ...]

# Serve current directory (default)
pagi-server

# Serve a specific directory
pagi-server PAGI::App::Directory root=/var/www

# Run a PAGI app file
pagi-server ./app.pl

# With environment modes
pagi-server -E development app.pl  # Lint middleware enabled
pagi-server -E production app.pl   # No auto-middleware

# With options
pagi-server -p 8080 PAGI::App::Directory root=/var/www
pagi-server --workers 4 ./myapp.pl

DESCRIPTION

pagi-server is the command-line interface for running PAGI applications. It uses PAGI::Runner for application loading and server orchestration, and PAGI::Server as the default server backend.

ENVIRONMENT MODES

pagi-server supports environment modes similar to Plack's -E flag:

development

Auto-enables PAGI::Middleware::Lint with strict mode. This catches specification violations early and provides helpful error messages.

This is the default when running interactively (TTY detected).

production

No middleware is auto-enabled, and access logging is disabled for maximum performance. Use --access-log FILE to enable logging in production.

This is the default when running non-interactively (no TTY, e.g., systemd, docker, cron).

none

Explicit opt-out of all auto-middleware, regardless of TTY detection.

Mode is determined by (in order of precedence):

1. -E / --env command line flag
2. PAGI_ENV environment variable
3. Auto-detection: TTY = development, no TTY = production

After determining the mode, pagi-server sets PAGI_ENV to the resolved value. Your app can check $ENV{PAGI_ENV} to know what mode it's running in, similar to Plack's PLACK_ENV.

OPTIONS

Common Options

These are handled by PAGI::Runner and work with any server backend.

-I, --lib PATH

Add PATH to @INC before loading the app. Can be specified multiple times, similar to perl -I.

pagi-server -I ./lib -I ./vendor/lib ./app.pl
-a, --app FILE

Path to .pl/.psgi file returning PAGI app coderef. Legacy option for backward compatibility; you can also just pass the file as an argument.

-e CODE

Inline app code, like perl -e. Must return a PAGI app coderef.

# Using a PAGI::App module
pagi-server -MPAGI::App::File -e 'PAGI::App::File->new(root => ".")->to_app'
-M MODULE

Load MODULE before evaluating -e code, like perl -M. Can be specified multiple times. Supports Module=import,args syntax.

pagi-server -MPAGI::App::File -e 'PAGI::App::File->new(root => ".")->to_app'
-o, --host HOST

Bind address (default: 127.0.0.1, localhost only)

The default only accepts connections from localhost, which is secure by default for development. For remote access:

pagi-server --host 0.0.0.0 ./app.pl    # All IPv4 interfaces
-p, --port PORT

Bind port (default: 5000)

-s, --server CLASS

Server class to use (default: PAGI::Server). Reserved for future use with pluggable server backends.

-E, --env MODE

Environment mode: development, production, or none.

-l, --loop BACKEND

Event loop backend (Poll, EV, Epoll, UV). Default is auto-detect.

--access-log FILE

Path to access log file (default: STDERR)

--no-access-log

Disable access logging entirely. Improves throughput by 5-15%.

-D, --daemonize

Fork to background and run as a daemon.

--pid FILE

Write the process ID to FILE.

--user USER

After binding, drop privileges to run as USER. Requires root.

--group GROUP

After binding, drop privileges to run as GROUP.

-q, --quiet

Suppress startup banner and development mode message.

--no-default-middleware

Disable auto-middleware even in development mode.

-v, --version

Show version info.

--help

Show help.

PAGI::Server Options

These options are passed through to PAGI::Server.

-w, --workers NUM

Number of worker processes (default: 1, single-process mode)

--reuseport

Enable SO_REUSEPORT mode for multi-worker servers.

--ssl-cert FILE, --ssl-key FILE

Enable HTTPS with the specified certificate and key files.

--max-requests NUM

Maximum requests per worker before restart (default: 0, unlimited)

--max-connections NUM

Maximum concurrent connections per worker (default: auto-detect)

--max-body-size NUM

Maximum request body size in bytes (default: 10MB)

--timeout NUM

Connection idle timeout in seconds (default: 60)

--shutdown-timeout NUM

Graceful shutdown timeout in seconds (default: 30)

--log-level LEVEL

Log verbosity: debug, info, warn, error (default: info)

-b, --listener-backlog NUM

Listen queue size (default: 2048)

--max-receive-queue NUM

Maximum WebSocket receive queue size (default: 1000)

--max-ws-frame-size NUM

Maximum WebSocket frame size in bytes (default: 65536)

--request-timeout NUM

Request stall timeout in seconds (default: 0, disabled)

--ws-idle-timeout NUM

WebSocket idle timeout in seconds (default: 0, disabled)

--sse-idle-timeout NUM

SSE idle timeout in seconds (default: 0, disabled)

--sync-file-threshold NUM

Sync file read threshold in bytes (default: 65536)

APP SPECIFICATION

Module Name

If the argument contains ::, it's treated as a Perl module name:

pagi-server PAGI::App::Directory root=/var/www

The module must have new() and to_app() methods.

File Path

If the argument contains / or ends with .pl/.psgi:

pagi-server ./app.pl

The file must return a PAGI app coderef.

Default

If no app is specified, serves the current directory:

pagi-server
# equivalent to: pagi-server PAGI::App::Directory root=.

SIGNAL HANDLING

TERM, INT

Graceful shutdown.

HUP

Graceful restart (multi-worker mode only).

TTIN, TTOU

Increase/decrease worker count (multi-worker mode only).

EXAMPLES

# Development (auto-detected from TTY)
pagi-server ./app.pl

# Explicit production mode
pagi-server -E production ./app.pl
PAGI_ENV=production pagi-server ./app.pl

# Multi-worker production
pagi-server --host 0.0.0.0 -p 80 --workers 4 -E production ./app.pl

# With HTTPS
pagi-server --ssl-cert cert.pem --ssl-key key.pem ./app.pl

# Maximum performance
pagi-server --no-access-log --workers 8 -E production ./app.pl

# Using EV event loop
pagi-server --loop EV ./app.pl

ENVIRONMENT

PAGI_ENV

Default environment mode if -E is not specified and no TTY detected.

IO_ASYNC_LOOP

Preferred IO::Async loop backend.

SEE ALSO

PAGI::Runner, PAGI::Server, PAGI::Middleware::Lint

AUTHOR

John Napiorkowski <jjnapiork@cpan.org>

LICENSE

This software is licensed under the same terms as Perl itself.