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Tasks for sown projects
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Move IPMI interfaces to new VLAN #90

Closed TimStallard closed 5 months ago

TimStallard commented 1 year ago

We've been allocated a new VLAN for IPMI, and want to move our servers onto it:

I think vms-b32-1 has a separate IPMI port, rather than shared with onboard ports, so that should be nice and easy. I think vms-b53-1 only has idrac express without a separate port, so we'd need to get an extra connection to it then to move the existing sown VLAN connection from eno1 to eno2, or onto the existing bridge.

The GW servers are a bit more complex, as the IPMI is shared with the first onboard NIC, ie eth0 in our setup, which is currently the SOWN LAN. I'm thinking we should move this to the 4th port (ie eth3), then we can move eth0 over to the IPMI VLAN.

I think a rough plan for that would be:

We can then bring up eth0 on the new IPMI VLAN, reconfigure the IPMI for the new IPs, and we'll want to firewall it so that nothing can talk out to the new VLAN. We'll probably also need to update the monitoring so it gets NRPE'd via a GW server as those will be the only ones on the VLAN.

Alternatively, perhaps it's worth reconfiguring our ports so eth0 is the IPMI, then eth1/2 are in a bond with all our other VLANs tagged? It would make adding future VLANs etc much easier, but I don't know if isolutions would be happy to set that up on their switches in b53.

TimStallard commented 1 year ago

This is now done in B32, changes are still uncommitted in /opt/sown/network, and ansible also needs tweaking

We still need to arrange to make the changes in B53:

then later on we can:

then to finish it up: