Prometheus exporter that scrapes meta information about a running ceph cluster. All the information gathered from the cluster is done by interacting with the monitors using an appropriate wrapper over `rados_mon_command()`. Hence, no additional setup is necessary other than having a working ceph cluster.
## Dependencies
You should ideally run this exporter from the client that can talk to
Ceph. Like any other ceph client it needs the following files to run
correctly.
*`ceph.conf` containing your ceph configuration.
*`ceph.<user>.keyring` in order to authenticate to your cluster.
Ceph exporter will automatically pick those up if they are present in
any of the [default
locations](http://docs.ceph.com/docs/master/rados/configuration/ceph-conf/#the-configuration-file). Otherwise you will need to provide the configuration manually using `--ceph.config` flag.
We use Ceph's [official Golang client](https://github.com/ceph/go-ceph) to run commands on the cluster.
It is also possible to build your own locally from the source. The port `9128` is
exposed as a default port for ceph exporter.
The exporter needs your ceph configuration in order to establish communication with the monitors. You can either pass it in as an additional command or mount the directory containing both your `ceph.conf` and your user's keyring under the default `/etc/ceph` location that `Ceph` checks for.
