rhcs-export's Introduction

RHCS Configuration Exporter

The goal of this tool is to extract key elements of the Ceph configuration to a file. The file may then be used as metadata to import the cluster into rook-ceph enabling Kubernetes applications to consume storage from an external ceph cluster.

Installation

This is a simple python script, so could be installed directly by copying the file or installing with the rpm.

How to Use it

The ceph export command should be installed in a mgr or mon node. Once installed the command provides the following options;

[root@ceph-mgr ~]$ python ceph-export.py -h                    
usage: ceph-export.py [-h] [-o OUTPUT] [-c CONFDIR] [-u USER] [-f {yaml}]

Export RHCS configuration information

optional arguments:
  -h, --help            show this help message and exit                  
  -o OUTPUT, --output OUTPUT
                        output file for the export (default: ~/rhcs-config-export.yaml)
  -c CONFDIR, --confdir CONFDIR
                        ceph configuration directory (default: /etc/ceph)
  -u USER, --user USER  Ceph user to use for the keyring (default: admin)
  -f {yaml}, --format {yaml}
                        output file format (default: yaml)

Example output

Here's an example of the file the tool creates

---
dashboard: http://rhcs4-2.storage.lab:8443/
fsid: 6d210768-d391-409b-b585-56d54554da8c
mgr: 10.90.90.161
mons: [10.90.90.153, 10.90.90.160, 10.90.90.161]                                             
rgws: ['10.90.90.153:8080']
secret: AQCrGYBdRH3XLRAA+LojQqElDRXHL6FIb5QvXg==                                             
version: 14.2.2