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batrick / ceph-linode

Launch Ceph using the Linode VPS provider
GNU General Public License v3.0
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linodes aren't in same subnet #3

Closed bengland2 closed 6 years ago

bengland2 commented 6 years ago

I fired up an linode cluster with ceph-linode and discovered that the linodes weren't in the same subnet, so ceph-ansible couldn't configure them. I never saw this before. Do you have to tell it to create them in the same subnet?

$ ansible -m shell -a 'ifconfig eth0 | awk "/inet /{print $2}"' all

mgr-000 | SUCCESS | rc=0 >> inet 173.255.238.79 netmask 255.255.255.0 broadcast 173.255.238.255

client-000 | SUCCESS | rc=0 >> inet 66.228.47.20 netmask 255.255.255.0 broadcast 66.228.47.255

osd-001 | SUCCESS | rc=0 >> inet 50.116.48.61 netmask 255.255.255.0 broadcast 50.116.48.255

osd-002 | SUCCESS | rc=0 >> inet 173.255.230.167 netmask 255.255.255.0 broadcast 173.255.230.255

osd-000 | SUCCESS | rc=0 >> inet 69.164.222.67 netmask 255.255.255.0 broadcast 69.164.222.255

mds-000 | SUCCESS | rc=0 >> inet 96.126.104.6 netmask 255.255.255.0 broadcast 96.126.104.255

mon-002 | SUCCESS | rc=0 >> inet 45.33.65.125 netmask 255.255.255.0 broadcast 45.33.65.255

mon-000 | SUCCESS | rc=0 >> inet 66.228.39.50 netmask 255.255.255.0 broadcast 66.228.39.255

mon-001 | SUCCESS | rc=0 >> inet 45.33.81.10 netmask 255.255.255.0 broadcast 45.33.81.255

batrick commented 6 years ago

I fired up an linode cluster with ceph-linode and discovered that the linodes weren't in the same subnet, so ceph-ansible couldn't configure them.

What error did you see?

Do you have to tell it to create them in the same subnet?

They will have the same private subnet. The private IP is added here:

https://github.com/batrick/ceph-linode/blob/master/linode-launch.py#L93

bengland2 commented 6 years ago

sorry, there are multiple IPs associated with eth0 interface and one of them is the same subnet for all hosts, just getting used to linode after using AWS. You can close it.