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Apache Module mod_systemd

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Description:Provides better support for systemd integration
Module Identifier:systemd_module
Source File:mod_systemd.c
Compatibility:Available in Apache 2.4.42 and later


This module provides support for systemd integration. It allows httpd to be used in a service with the systemd Type=notify (see systemd.service(5) for more information). The module is activated if loaded.

Example of systemd service unit (more settings are probably needed for production systems)

Description=The Apache HTTP Server

ExecStart=/usr/local/apache2/bin/httpd -D FOREGROUND -k start
ExecReload=/usr/local/apache2/bin/httpd -k graceful


Special attention should be given to how ExecStop and/or KillMode are configured for the service. If configured, an ExecStop command should be a synchronous operation which itself exits when the daemon has terminated. Running httpd -k stop asynchronously initiates daemon termination, so does not satisfy this condition. The example above uses KillMode=mixed so that systemd sends SIGTERM to signal the parent process (and only the parent) to shut down. The entire process group is then sent SIGKILL after TimeoutStopSec elapses, if any processes are still running. See systemd.kill(5) for more information.

This module does not provide support for Systemd socket activation.

ExtendedStatus is enabled by default if the module is loaded. If ExtendedStatus is not disabled in the configuration, run-time load and request statistics are made available in the systemctl status output.

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This module provides no directives.

Bugfix checklist

See also

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