ceph/doc/dev/dev_cluster_deployement.rst

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Deploying a development cluster
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In order to develop on ceph, a Ceph utility,
*vstart.sh*, allows you to deploy fake local cluster for development purpose.
Usage
=====
It allows to deploy a fake local cluster on your machine for development purpose. It starts mon, osd and/or mds, or all of them if not specified.
To start your development cluster, type the following::
vstart.sh [OPTIONS]... [mon] [osd] [mds]
In order to stop the cluster, you can type::
./stop.sh
Options
=======
.. option:: -i ip_address
Bind to the specified *ip_address* instead of guessing and resolve from hostname.
.. option:: -k
Keep old configuration files instead of overwritting theses.
.. option:: -l, --localhost
Use localhost instead of hostanme.
.. option:: -m ip[:port]
Specifies monitor *ip* address and *port*.
.. option:: -n, --new
Create a new cluster.
.. option:: -o config
Add *config* to all sections in the ceph configuration.
.. option:: -r
Start radosgw (ceph needs to be compiled with --radosgw), create an apache2 configuration file, and start apache2 with it (needs apache2 with mod_fastcgi) on port starting from 8000.
.. option:: --nodaemon
Use ceph-run as wrapper for mon/osd/mds.
.. option:: --smallmds
Configure mds with small limit cache size.
.. option:: -x
Enable Cephx (on by default).
.. option:: -X
Disable Cephx.
.. option:: -d, --debug
Launch in debug mode
.. option:: --valgrind[_{osd,mds,mon}] 'valgrind_toolname [args...]'
Launch the osd/mds/mon/all the ceph binaries using valgrind with the specified tool and arguments.
Environment variables
=====================
{OSD,MDS,MON,RGW}
Theses environment variables will contains the number of instances of the desired ceph process you want to start.
Example: ::
OSD=3 MON=3 RGW=1 vstart.sh