Ceph » devops

Could you give me a use case? In what context something like this would happen, and at what point in the deployment process?

ceph-deploy connects to the monitors when creating them (with the `create` sub command) and/or when calling `create-initial` and uses either a list of
hostnames or mappings (as in mapping:1.1.1.1, other:2.2.2.2).

It would seem terribly complex to attempt to understand that one IP in `--mon-ssh-addrs` actually maps to another one in the list of initial members. At least,
it does look complex without understanding where exactly in the process this would be useful.

There probably is something to be done to clarify the confusion between mon id and hostnames but it is another topic ;-)

This will be very tricky to do with CLI flags, so after discussing this with Kyle, it was decided that using the cephdeploy.conf file to do the right mappings for the monitors would be better.

This is an example configuration file with a specific section for monitor addresses that would map correctly:

#
# ceph-deploy configuration file
#

[ceph-deploy-global]
# Overrides for some of ceph-deploy's global flags, like verbosity or cluster
# name
verbose = True
quiet = False

[ceph-deploy-install]
# Overrides for some of ceph-deploy's install flags, like version of ceph to
# install
#

[mon-addresses]
mon1-public = '10.0.0.1'
mon1-ssh = '192.168.1.2'

mon2-public = '10.0.0.2'
mon2-ssh = '192.168.1.3'