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Rackspace Cloud Monitoring Agent
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README.md

Rackspace Monitoring Agent

Build status Build Status Stories in Ready Throughput Graph

The monitoring agent is the first agent to use the infrastructure provided by virgo-base-agent

Installing The Agent

Make sure you have the required packages to build things on your system. EG. build-essential. Please note, if you don't want to compile things and or don't have too, you can install using the normal "Package" method as outlined here. Otherwise, continue reading this section.

First get the source

git clone https://github.com/virgo-agent-toolkit/rackspace-monitoring-agent

Go into the directory that you just created

cd rackspace-monitoring-agent

Build:

make 

Now simply install the virgo client by running this last and final command.

make install

Post installation you will have a new Binary on your system, rackspace-monitoring-agent. To get the client running on your system please follow the setup procedure as found here

License

The Monitoring Agent is distributed under the Apache License 2.0.

Bundles

The Lua files in this repository are not used directly (nor will they run under Luvit). Instead, they must first be bundled into a zip archive which virgo undertands. Virgo makes this process easy by taking a flag to configure, --bundle, which should be set to the directory this repo lives in. See Virgo for more information on bundles.

Building for Rackspace Cloud Monitoring

Rackspace customers: Virgo is the open source project for the Rackspace Cloud Monitoring agent. Feel free to build your own copy from this source.

But! Please don't contact Rackspace Support about issues you encounter with your custom build. We can't support every change people may make and master might not be fully tested.

Versioning

The agent is versioned with a three digit dot seperated "semantic version" with the template being x.y.z. An example being e.g. 1.4.2. The rough meaning of each of these parts are:

  • major version numbers will change when we make a backwards incompatible change to the bundle format. Binaries can only run bundles with identical major version numbers. e.g. a binary of version 2.3.1 can only run bundles starting with 2.

  • minor version numbers will change when we make backwards compatible changes to the bundle format. Binaries can only run bundles with minor versions that are greater than or equal to the bundle version. e.g. a binary of version 2.3.1 can run a 2.3.4 bundle but not a 2.2.1 bundle.

  • patch version numbers will change everytime a new bundle is released. It has no semantic meaning to the versioning.

The zip file bundle and the binary shipped in an rpm/deb/msi will be identical. If the binary is 1.4.2 then the bundle will be 1.4.2.

Running tests

Virgo supplies infrastructure for running tests. Calling make test will launch Virgo with command line flags set to feed it the testing bundle and with the -e flag set to tests.

make test

Configuration File Parameters

monitoring_token [token]         - (required) The authentication token.
monitoring_id [agent_id]         - (optional) The Agent's monitoring_id
                                   (default: Instance ID (Xen) or Cloud-Init ID)
monitoring_snet_region [region]  - (optional) Enable Service Net endpoints 
                                   (region: dfw, ord, lon, syd, hkg, iad)
monitoring_endpoints             - (optional) Force IP and Port, comma
                                   delimited
monitoring_proxy_url [url]       - (optional) Use a HTTP Proxy
                                   Must support CONNECT on port 443.
                                   Additionally, HTTP_PROXY and HTTPS_PROXY
                                   are honored.
monitoring_query_endpoints [queries] - (optional) SRV queries comma
                                        delimited

Exit Codes

1 unknown error
2 config file fail
3 already running

Signals

SIGUSR1: Force GC
SIGUSR2: Toggle Debug
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