Maniphest T327930

Is Vlan 2122 cloud-support1-b-codfw required?
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	cmooney
	Jan 25 2023, 4:32 PM

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	F36932140: Screenshot 2023-03-29 at 14-50-17 Change Log NetBox.png
	Mar 29 2023, 2:15 PM

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Description

This Vlan exists in codfw and has a VRRP gateway configured between the two CRs there:

https://netbox.wikimedia.org/ipam/prefixes/148/ip-addresses/

It's got no hosts connected to it, however:

https://netbox.wikimedia.org/ipam/vlans/115/interfaces/

The equivalent in eqiad has labstore, dbproxy, cloudmetrics hosts on it, as well as LVS load-balancers which front some services they host.

It seems to be that when we have a working model for the CloudLB we can revisit the eqiad Vlan and possibly migrate away? And if that is indeed the longer-term plan then we should remove the unused cloud-support1-b-codfw vlan in codfw, and get things working in the CloudLB POC instead?

Details

	Project	Branch	Lines +/-	Subject
	operations/dns	master	+0 -46	Remove decom prefixes from DNS
	operations/puppet	production	+0 -33	Remove labs/cloud-support1-b-codfw

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Related Objects
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		Status	Subtype	Assigned	Task
		Resolved		aborrero	T296411 cloud: decide on general idea for having cloud-dedicated hardware provide service in the cloud realm & the internet
		In Progress		aborrero	T297596 have cloud hardware servers in the cloud realm using a dedicated LB layer
		Resolved		aborrero	T324992 cloudlb: create PoC on codfw
		Resolved		ayounsi	T327930 Is Vlan 2122 cloud-support1-b-codfw required?

Event Timeline

cmooney triaged this task as Low priority.Jan 25 2023, 4:32 PM

cmooney created this task.

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJan 25 2023, 4:32 PM

I guess this was set up to mirror the eqiad setting. Since this VLAN as no room in the new network model (described wikitech)

Agreed, I think it should be good to drop from the codfw setup any time.

aborrero added a parent task: T324992: cloudlb: create PoC on codfw.Jan 25 2023, 5:07 PM

Thanks for the feedback @aborrero. I'll plan on getting it decommissioned.

Change 904167 had a related patch set uploaded (by Ayounsi; author: Ayounsi):

[operations/puppet@production] Remove labs/cloud-support1-b-codfw

https://gerrit.wikimedia.org/r/904167

gerritbot added a project: Patch-For-Review.Mar 29 2023, 12:39 PM

ayounsi claimed this task.Mar 29 2023, 12:40 PM

Removed from Netbox, last step is the above Puppet change ready for reviews.

Change 904167 merged by Ayounsi:

[operations/puppet@production] Remove labs/cloud-support1-b-codfw

https://gerrit.wikimedia.org/r/904167

Mentioned in SAL (#wikimedia-operations) [2023-03-29T14:00:02Z] <XioNoX> merge/deploy change in Puppet's modules/network/data/data.yaml - T327930

Maintenance_bot removed a project: Patch-For-Review.Mar 29 2023, 2:11 PM

For the record, Netbox changes

Screenshot 2023-03-29 at 14-50-17 Change Log NetBox.png (1×775 px, 171 KB)

Change 904198 had a related patch set uploaded (by Ayounsi; author: Ayounsi):

[operations/dns@master] Remove decom prefixes from DNS

https://gerrit.wikimedia.org/r/904198

Change 904198 merged by Ayounsi:

[operations/dns@master] Remove decom prefixes from DNS

https://gerrit.wikimedia.org/r/904198

Maintenance_bot removed a project: Patch-For-Review.Mar 29 2023, 3:31 PM