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/ Mojo::Server::Daemon

NAME

Mojo::Server::Daemon - Non-blocking I/O HTTP and WebSocket server

SYNOPSIS

use Mojo::Server::Daemon;

my $daemon = Mojo::Server::Daemon->new(listen => ['http://*:8080']);
$daemon->unsubscribe('request')->on(request => sub {
  my ($daemon, $tx) = @_;

  # Request
  my $method = $tx->req->method;
  my $path   = $tx->req->url->path;

  # Response
  $tx->res->code(200);
  $tx->res->headers->content_type('text/plain');
  $tx->res->body("$method request for $path!");

  # Resume transaction
  $tx->resume;
});
$daemon->run;

DESCRIPTION

Mojo::Server::Daemon is a full featured, highly portable non-blocking I/O HTTP and WebSocket server, with IPv6, TLS, SNI, Comet (long polling), keep-alive and multiple event loop support.

For better scalability (epoll, kqueue) and to provide non-blocking name resolution, SOCKS5 as well as TLS support, the optional modules EV (4.0+), Net::DNS::Native (0.15+), IO::Socket::Socks (0.64+) and IO::Socket::SSL (2.009+) will be used automatically if possible. Individual features can also be disabled with the MOJO_NO_NNR, MOJO_NO_SOCKS and MOJO_NO_TLS environment variables.

See "DEPLOYMENT" in Mojolicious::Guides::Cookbook for more.

SIGNALS

The Mojo::Server::Daemon process can be controlled at runtime with the following signals.

INT, TERM

Shut down server immediately.

EVENTS

Mojo::Server::Daemon inherits all events from Mojo::Server.

ATTRIBUTES

Mojo::Server::Daemon inherits all attributes from Mojo::Server and implements the following new ones.

acceptors

my $acceptors = $daemon->acceptors;
$daemon       = $daemon->acceptors(['6be0c140ef00a389c5d039536b56d139']);

Active acceptor ids.

# Check port
mu $port = $daemon->ioloop->acceptor($daemon->acceptors->[0])->port;

backlog

my $backlog = $daemon->backlog;
$daemon     = $daemon->backlog(128);

Listen backlog size, defaults to SOMAXCONN.

inactivity_timeout

my $timeout = $daemon->inactivity_timeout;
$daemon     = $daemon->inactivity_timeout(5);

Maximum amount of time in seconds a connection can be inactive before getting closed, defaults to the value of the MOJO_INACTIVITY_TIMEOUT environment variable or 15. Setting the value to 0 will allow connections to be inactive indefinitely.

ioloop

my $loop = $daemon->ioloop;
$daemon  = $daemon->ioloop(Mojo::IOLoop->new);

Event loop object to use for I/O operations, defaults to the global Mojo::IOLoop singleton.

listen

my $listen = $daemon->listen;
$daemon    = $daemon->listen(['https://127.0.0.1:8080']);

Array reference with one or more locations to listen on, defaults to the value of the MOJO_LISTEN environment variable or http://*:3000 (shortcut for http://0.0.0.0:3000).

# Listen on all IPv4 interfaces
$daemon->listen(['http://*:3000']);

# Listen on all IPv4 and IPv6 interfaces
$daemon->listen(['http://[::]:3000']);

# Listen on IPv6 interface
$daemon->listen(['http://[::1]:4000']);

# Listen on IPv4 and IPv6 interfaces
$daemon->listen(['http://127.0.0.1:3000', 'http://[::1]:3000']);

# Listen on UNIX domain socket "/tmp/myapp.sock" (percent encoded slash)
$daemon->listen(['http+unix://%2Ftmp%2Fmyapp.sock']);

# File descriptor, as used by systemd
$daemon->listen(['http://127.0.0.1?fd=3']);

# Allow multiple servers to use the same port (SO_REUSEPORT)
$daemon->listen(['http://*:8080?reuse=1']);

# Listen on two ports with HTTP and HTTPS at the same time
$daemon->listen(['http://*:3000', 'https://*:4000']);

# Use a custom certificate and key
$daemon->listen(['https://*:3000?cert=/x/server.crt&key=/y/server.key']);

# Domain specific certificates and keys (SNI)
$daemon->listen(
  ['https://*:3000?example.com_cert=/x/my.crt&example.com_key=/y/my.key']);

# Or even a custom certificate authority
$daemon->listen(
  ['https://*:3000?cert=/x/server.crt&key=/y/server.key&ca=/z/ca.crt']);

These parameters are currently available:

ca
ca=/etc/tls/ca.crt

Path to TLS certificate authority file used to verify the peer certificate.

cert
cert=/etc/tls/server.crt
mojolicious.org_cert=/etc/tls/mojo.crt

Path to the TLS cert file, defaults to a built-in test certificate.

ciphers
ciphers=AES128-GCM-SHA256:RC4:HIGH:!MD5:!aNULL:!EDH

TLS cipher specification string. For more information about the format see https://www.openssl.org/docs/manmaster/apps/ciphers.html#CIPHER-STRINGS.

fd
fd=3

File descriptor with an already prepared listen socket.

key
key=/etc/tls/server.key
mojolicious.org_key=/etc/tls/mojo.key

Path to the TLS key file, defaults to a built-in test key.

reuse
reuse=1

Allow multiple servers to use the same port with the SO_REUSEPORT socket option.

single_accept
single_accept=1

Only accept one connection at a time.

verify
verify=0x00

TLS verification mode.

version
version=TLSv1_2

TLS protocol version.

max_clients

my $max = $daemon->max_clients;
$daemon = $daemon->max_clients(100);

Maximum number of accepted connections this server is allowed to handle concurrently, before stopping to accept new incoming connections, passed along to "max_connections" in Mojo::IOLoop.

max_requests

my $max = $daemon->max_requests;
$daemon = $daemon->max_requests(250);

Maximum number of keep-alive requests per connection, defaults to 100.

silent

my $bool = $daemon->silent;
$daemon  = $daemon->silent($bool);

Disable console messages.

METHODS

Mojo::Server::Daemon inherits all methods from Mojo::Server and implements the following new ones.

close_connections

$daemon->close_connections;

Stop accepting new requests and close all connections after finising those currently being processed.

ports

my $ports = $daemon->ports;

Get all ports this server is currently listening on.

# All ports
say for @{$daemon->ports};

run

$daemon->run;

Run server and wait for "SIGNALS".

start

$daemon = $daemon->start;

Start or resume accepting connections through "ioloop".

# Listen on random port
my $port = $daemon->listen(['http://127.0.0.1'])->start->ports->[0];

# Run multiple web servers concurrently
my $daemon1 = Mojo::Server::Daemon->new(listen => ['http://*:3000'])->start;
my $daemon2 = Mojo::Server::Daemon->new(listen => ['http://*:4000'])->start;
Mojo::IOLoop->start unless Mojo::IOLoop->is_running;

stop

$daemon = $daemon->stop;

Stop accepting connections through "ioloop".

DEBUGGING

You can set the MOJO_SERVER_DEBUG environment variable to get some advanced diagnostics information printed to STDERR.

MOJO_SERVER_DEBUG=1

SEE ALSO

Mojolicious, Mojolicious::Guides, https://mojolicious.org.