HTTP Server

Pack Assets

Templates

The Centreon Monitoring Connector HTTP Server brings a host template:

• App-Protocol-HTTP-custom

It brings the following service templates:

Service Alias	Service Template	Service Description	Default
HTTP-Expected-Content	App-Protocol-HTTP-Expected-Content	Check the presence of a string in a Webpage
HTTP-Json-Content	App-Protocol-HTTP-Json-Content	Check json content
HTTP-Response-Time	App-Protocol-HTTP-Response-Time	Check response time of a Wabpage	X
HTTP-Soap-Content	App-Protocol-HTTP-Soap-Content	Check soap content

Collected metrics & status

HTTP-Expected-Content

Metric Name	Unit
content
http.extracted.value.count	count
http.content.size.bytes	B
http.response.time.seconds	s

HTTP-Json-Content

Metric Name	Unit
http.response.time.seconds	s

HTTP-Response-Time

Metric Name	Unit
http.response.connect.time.milliseconds	ms
http.response.processing.time.milliseconds	ms
http.response.resolve.time.milliseconds	ms
http.response.size.count	B
status
http.response.time.seconds	s
http.response.tls.time.milliseconds	ms
http.response.transfer.time.milliseconds	ms

HTTP-Soap-Content

Metric Name	Unit
http.response.time.seconds	s

Prerequisites

The target website or webapp should be accessible over HTTP/HTTPS from the poller. Specific option can be used to specify a proxy when it is required.

Setup

Online License

1. Install the package on every Centreon poller expected to monitor HTTP Server resources:

yum install centreon-plugin-Applications-Protocol-Http

2. On the Centreon web interface, on page Configuration > Monitoring Connectors Manager, install the HTTP Server Centreon Monitoring Connector.

Offline License

1. Install the package on every Centreon poller expected to monitor HTTP Server resources:

yum install centreon-plugin-Applications-Protocol-Http

2. Install the HTTP Server Centreon Monitoring Connector RPM on the Centreon central server:

yum install centreon-pack-applications-protocol-http

3. On the Centreon web interface, on page Configuration > Monitoring Connectors Manager, install the HTTP Server Centreon Monitoring Connector.

Configuration

Host

• Log into Centreon and add a new host through Configuration > Hosts.
• Fill the Name, Alias & IP Address/DNS fields according to your HTTP Server server settings.
• Apply the App-Protocol-HTTP-custom template to the host.
• Once the template is applied, fill in the corresponding macros. Some macros are mandatory.

Mandatory	Macro	Description
	EXTRAOPTIONS	Any extra option you may want to add to every command line (eg. a --verbose flag)
	PORT	(Default: '80')
	PROTOCOL	(Default: 'http')

How to check in the CLI that the configuration is OK and what are the main options for?

Once the plugin is installed, log into your Centreon poller's CLI using the centreon-engine user account (su - centreon-engine) and test the plugin by running the following command:

/usr/lib/centreon/plugins/centreon_protocol_http.pl \
    --plugin=apps::protocols::http::plugin \
    --mode=response \
    --hostname=google.com \
    --http-backend=curl \
    --extra-stats \
    --use-new-perfdata

The expected command output is shown below:

OK: response time 0.078s | 'http.response.time.seconds'=0.078s;;;0; 'http.response.size.count'=49602B;;;0; 'http.response.resolve.time.milliseconds'=4.176ms;;;0; 'http.response.connect.time.milliseconds'=4.176ms;;;0; 'http.response.processing.time.milliseconds'=44.163ms;;;0; 'http.response.transfer.time.milliseconds'=4.176ms;;;0;

All available options for a given mode can be displayed by adding the --help parameter to the command:

/usr/lib/centreon/plugins//centreon_protocol_http.pl \
    --plugin=apps::protocols::http::plugin \
    --mode=soap-content \
    --help

All available modes can be displayed by adding the --list-mode parameter to the command:

/usr/lib/centreon/plugins//centreon_protocol_http.pl \
    --plugin=apps::protocols::http::plugin \
    --list-mode

Troubleshooting

Please find the troubleshooting documentation for Centreon Plugins typical issues.