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Icinga2 API client written in PHP (Mirror only here)

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Icinga2 Api Client for PHP

This is a simple api client for Icinga2 written in PHP. At the moment it has only read functions. In the future it will be capable of writing to Icinga2 too.

Installation

To use this client simply add it to your package requirements with composer:

composer require rzuw/icinga2

Configuration for Client

The following settings should be set to make this client work.

$config = array
(
    "host" => ""
    "port" => ""
    // should be set when you decide for username and password login
    "user" => ""
    "password" => ""
    // should be used when you decide for certificate login
    "cert" => ""
    "key" => ""
);

Configuration for Icinga2 Backend

The complete configuration for API settings for an Icinga2 backend is available in Icinga2 Documentation. There will be to example for API configuration available one for Authentication with username and password, the other using a X509 certificate.

Configure API

To configure the Api settings you need to create the master certificates:

icinga2 pki new-ca
cd /var/lib/icinga2/certs/
icinga2 pki new-cert --cn your-master-instance-fqdn --csr your-master-instance-fqdn.csr --key your-master-instance-fqdn.key
icinga2 pki sign-csr --csr your-master-instance-fqdn.csr --cert your-master-instance-fqdn.crt

Copy the ca.crt to your client you will need this for your future authentications.

Then add the following configuration for the API, in /etc/icinga2/features-available/api.conf

/**
 * The API listener is used for distributed monitoring setups.
 */
object ApiListener "api" {
 accept_commands = true
 accept_config = true
 ticket_salt = TicketSalt
}

Enable the Api settings with commandline or creating a link:

# Using Commandline
icinga2 feature eanble api
# Or Using link
ln -s /etc/icinga2/features-available/api.conf /etc/icinga2/features-enabled/api.conf

Using Username and Password

In /etc/icinga2/conf.d/api-users.conf add your new user with the given settings:

object ApiUser "your-user"{
  password = "your-password"
  permissions = ["*"]
}

To test the settings use curl:

curl -u your-user:your-password --cacert ca.crt 'https://your-icinga2-domain:5665/v1'

Using X509 Certificate

It is possible to use Icinga2 Api with certificates, to do this you need to create the needed ca certificate, a client certificate and then sign the certificate with ca. The complete documentation can be found on Icinga2 website.

cd /var/lib/icinga2/certs/
icinga2 pki new-cert --cn your-client-cn --csr your-client-cn.csr --key your-client-cn.key
icinga2 pki sign-csr --csr your-client-cn.csr --cert your-client-cn.crt

In /etc/icinga2/conf.d/api-users.conf add your new user with the given settings:

object ApiUser "your-client-user"{
  client_cn = "your-client-cn"
  permissions = ["*"]
}

Restart the Icinga2 Daemon:

systemctl restart icinga2

Copy your-client-cn.crt and your-client-cn.key to your Api client and they can be used.

To test the clients simply use the following curl command:

curl --cert your-client-cn.crt --key your-client-cn.key --cacert ca.crt 'https://your-icinga-api-domain:5665/v1'
# On Successful attempt you will see:
# <html><head><title>Icinga 2</title></head><h1>Hello from Icinga 2 (Version: r2.8.0-1)!</h1><p>You are authenticated as <b>your-client-user</b>. Your user has the following permissions:</p> <ul><li>*</li></ul><p>More information about API requests is available in the <a href="https://docs.icinga.com/icinga2/latest" target="_blank">documentation</a>.</p></html>

Usage

To use this client simply create an instance of Icinga2Api class and load the configuration inside.

$config = array
(
    "host" => ""
    "port" => ""
    // should be set when you decide for username and password login
    "user" => ""
    "password" => ""
    // should be used when you decide for certificate login
    "cert" => ""
    "key" => ""
);
$icinga2 = new Icinga2($config);
$matchedHosts = $icinga2->getHosts(array("match(\"" . $this->hostData["hostname"] . "*\",host.name)"

See the test cases for more examples.

Testing

To test this client you need to have phpunit installed. And the following environmental variables should be set.

export ICINGA2HOST="Your API HOST"
export ICINGA2PORT="YOUR API PORT"
export ICINGA2USERNAME= ""
export ICINGA2PASSWORD=""
export ICINGA2CERTPATH=""
export ICINGA2KEYPATH=""
export ICINGA2CAPATH=""
export ICINGA2KEYPASSWORD=""

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Icinga2 API client written in PHP (Mirror only here)

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