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Documentation #58644
opencephadm dual-stack installation is totally undocumented
Status:
New
Priority:
Normal
Assignee:
-
Category:
cephadm
Target version:
-
% Done:
0%
Tags:
Backport:
Reviewed:
Affected Versions:
Pull request ID:
Description
There is currently zero documentation whatsoever on using cephadm for a dual-stack cluster installation. If that is impossible then it should be noted in https://docs.ceph.com/en/latest/cephadm/install/ and if it is possible then there could be some documentation about it:
- How to bootstrap a dual-stack cluster? Specifically MON IPv4 + IPv6 addresses would need to be specified somehow, maybe with
--mon-addrvinstead of--mon-ip? - How to add hosts to a dual-stack cluster using a YAML spec file? Would hosts need to be added using hostnames only and rely on DNS A + AAAA records or would both the IPv4 and IPv6 addresses be specified as
addrsomehow? - How to add hosts to a dual-stack cluster in command line?
- What about IP addresses in other places, for example:
networks:in YAML service specification; ingress service virtual address?
Updated by Voja Molani about 1 year ago
I noticed that this was discussed in the meeting of 2023-02-14 so I will add some follow-up.
The purpose of this issue was to initially at least document the current situation so that other users/admins will not be in this same situation. It could also factor into new prospective users' decisions on whether to tie themselves to cephadm or if a manual installation should be done. Based on the discussion it sounded like "IPv6 support in cephadm is currently unsupported and unplanned" and the reason seems to be that it has never been requested or thought about; and the testing infrastructure is IPv4-only.
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