Inventory plugin group by VPC

[rvalle]

The inventory plugin documentation states that it is possible to filter instances by VPC,

However, it does not seem possible to group instances by VPC.

Is it possible?

[rvalle]

I think this is because the API allows to filter by VPC, but does not return VPC information in the instance, which seems odd.

[rvalle]

Without having this information returned by the API an implementation would be a very nasty workaround that would break the inventory plugin architecture. So, I have asked for that information returned by the API and then we will be able to cleanly implement in the inventory plugin:

https://github.com/apache/cloudstack/issues/6452

Meanwhile a viable workaround is to have 2 inventory files (using an inventory directory), one using the inventory plugin, and another using plain text to create supergroups like this:

[vpc:children]
net_tier1
net_tier2
net_tier3

[vpc2:children]
net_tier4
net_tier5
net_tier6

This would create 2 groups vpc and vpc2, that would include the hosts in the related tiers. For that to work first the inventory plugin must group by network like this:

keyed_groups:
  - prefix: net
    key: networks

Unfortunately this setup is only viable for few stable VPCs, as the tier to VPC supergroups file needs to be maintained manually.

[rvalle]

good news, https://github.com/apache/cloudstack/issues/6452 has been implemented and will be released in ACS 4.17.1 We will then be able to implement this in the Iventory Plugin.

[rvalle]

thanks @Pearl1594 for implementing this.