grafana-rrd-server

README

Grafana RRD Server

A simple HTTP server that reads RRD files and responds to requests from Grafana with Grafana Simple JSON Datasource plugin.

This server supports all endpoints (urls) defined in the Grafana Simple JSON Datasource plugin documentation](https://grafana.net/plugins/grafana-simple-json-datasource) but:

• The /annotation endpoint always returns the same result {"message":"annotations"}. (the endpoint exists but no features are implemented)
• You can use * as a wildcard in the target values (but not for ds) for the /query endpoint.

Requirement

• librrd-dev (rrdtool)
• Go
• Grafana 3.0 and newer + Simple JSON Datasource plugin 1.0.0 and newer

Usage

1. Install librrd-dev (rrdtool).

   On Ubuntu/Debian:

   sudo apt install librrd-dev
   

   On CentOS:

   sudo yum install rrdtool-devel
   

   On Mac:

   brew install rrdtool
   

2. Get the package.

   go get github.com/doublemarket/grafana-rrd-server
   

   Otherwise, download the latest release, gunzip it, and put the file in a directory included in $PATH:

   gunzip grafana-rrd-server_linux_amd64.gz
   

3. Run the server.

   grafana-rrd-server
   

   You can use the following options:

   • -h : Shows help messages.
   • -p : Specifies server port. (default: 9000)
   • -r : Specifies a directory path keeping RRD files. (default: "./sample/")
     • The server recursively searches RRD files under the directory and returns a list of them for the /search endpoint.
   • -s : Default graph step in second. (default: 10)
     • You can see the step for your RRD file using:

       $ rrdtool info [rrd file] | grep step
       step = 300
       

4. Setup Grafana and Simple JSON Datastore plugin.

   See Grafana documentation

5. Create datasource.

Contributing

1. Install librrd-dev (rrdtool).

   See the Usage section.

2. Clone the repository.

3. Commit your code on a separate branch.

4. Create a pull request.

License

MIT