Check that parent exists before network allocation.

[AliaksandrDziarkach]

NIOS convert parent network to network container when network
inserted into network.
After such convertion caused parent network ID changed to network
container ID, so parent will be unavailable to terraform.
To prevent it - add check that parent is network container before
network allocation.

[somashekhar]

There is a check for network container but what if there is a parent network under which the user will be creating a subnet.?
It would be better to check for both network container and the network as the parent network gets converted into a network container when we allocate next available network from that subnet.

Can we also use get "GetNetwork" to validate the same ?

[AliaksandrDziarkach]

If parent CIDR points to the network - this network will be converted to the network container by NIOS code, as result parent ID will be changed which will cause errors in terraform when access this network.

[somashekhar]

We would need a container ID to be tracked for subsequent terraform operations. Hence the present implementation looks good to me.

[somashekhar]

#27