java: Post messages over HTTP using Java

Version 3.7 of AxoSyslog can directly post log messages to web services using the HTTP protocol. Error and status messages received from the HTTP server are forwarded to the internal logs of AxoSyslog. The current implementation has the following limitations:

Only HTTP connections are supported, HTTPS is not.
This destination requires Java. For an http destination that does not use Java, see http: Post messages over HTTP without Java.

Declaration:

   java(
        class-path("/syslog-ng/install_dir/lib/syslog-ng/java-modules/*.jar")
        class-name("org.syslog_ng.http.HTTPDestination")
    
        option("url", "http://<server-address>:<port-number>")
    
    );

Example: Sending log data to a web service

The following example defines an http destination.

   destination d_http {
        java(
            class-path("/syslog-ng/install_dir/lib/syslog-ng/java-modules/*.jar")
            class-name("org.syslog_ng.http.HTTPDestination")
    
            option("url", "http://192.168.1.1:80")
        );
    };
    
    log
        { source(s_file); destination(d_http); flags(flow-control); };

Note

If you delete all Java destinations from your configuration and reload syslog-ng, the JVM is not used anymore, but it is still running. If you want to stop JVM, stop syslog-ng and then start syslog-ng again.

HTTP destination options

Last modified October 29, 2023: Create manpages (#34) (9534f54)