Rohit Yadav 0fedbdd7a9 CLOUDSTACK-9998: Prometheus Exporter for CloudStack (#2287)
This implements a CloudStack Prometheus exporter as a plugin, that serves
metrics on a HTTP port.

New global settings:

1. prometheus.exporter.enable - (default: false), Enable the prometheus
exporter plugin, management server restart needed.
2. prometheus.exporter.port - (default: 9595), The prometheus exporter
server port.
3. prometheus.exporter.allowed.ips - (default: 127.0.0.1), List of comma
separated prometheus server ips (with no spaces) that should be allowed to
access the URLs.

The following list  of  metrics are provided  per pop (zone)  with  the exporter:
• Per host:
o CPU cores:  used, total
o CPU usage:  used, total (in MHz)
o Memory  usage:  used, total (in MiBs)
o Total VMs running on  the host
• CPU cores:  allocated (per  zone)
• CPU usage:  allocated (per  zone, in  MHz)
• Memory  usage:  allocated (per  zone, in  MiBs)
• Hosts:  online, offline,  total
• VMs: in all states -- starting, running, stopping, stopped, destroyed,
       expunging, migrating,  error, unknown
• Volumes:  ready,  destroyed,  total
• Primary Storage Pool: (Disk size) used, allocated,  unallocated,  total (in GiBs)
• Secondary Storage Pool: (Disk size) used, allocated,  unallocated,  total (in GiBs)
• Private IPs:  allocated,  total
• Public  IPs:  allocated,  total
• Shared  Network IPs:  allocated,  total
• VLANs:  allocated,  total

Additional metrics for the environment:
• Summed  domain  (level=1) limit for CPU cores
• Summed  domain  (level=1) limit for memory/ram

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
2017-10-11 17:24:22 +05:30

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<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>cloud-plugin-integrations-prometheus-exporter</artifactId>
<name>Apache CloudStack Plugin - Prometheus Exporter</name>
<parent>
<groupId>org.apache.cloudstack</groupId>
<artifactId>cloudstack-plugins</artifactId>
<version>4.11.0.0-SNAPSHOT</version>
<relativePath>../../pom.xml</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.apache.cloudstack</groupId>
<artifactId>cloud-utils</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.apache.cloudstack</groupId>
<artifactId>cloud-api</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.apache.cloudstack</groupId>
<artifactId>cloud-engine-schema</artifactId>
<version>${project.version}</version>
</dependency>
</dependencies>
</project>