yumのインストールパッケージを雑にmackerelのmetadataとして登録する

metadata-rpm-packages.php

<?php
$list = explode("\n", `yum list installed`);

foreach ($list as $key => $val) {
    if (empty($val)) {
        continue;
    }

    $base_list = array_filter(explode(" ", $val));
    $json_base[$key]['name'] = array_shift($base_list);
    $json_base[$key]['version'] = array_shift($base_list);
}

echo json_encode($json_base);

/**
add setting to/etc/mackerel-agent/mackerel-agent.conf 

[plugin.metadata.packages]
command = "/usr/bin/php /usr/local/etc/mackerel/meta-rpm-packages.php"

get matadata sample
curl -H 'X-Api-Key: <API_KEY>' https://mackerel.io/api/v0/hosts/<hostID>/metadata/packages
**/