Base subnet is assigned for nodes in leaf networks when spine-leaf environment with assigning predictable IPs.

[Harald Jensås]

The workaround of this is specifying ip_netmask like below instead of "get_param: InternalApiIpSubnet" in nic-configs.

nic-configs for leaf1 nodes:
```
                  addresses:
                  - ip_netmask: "{{ internal_api_ip ~ '/25' }}"
                      #get_param: InternalApiIpSubnet
```

This broke with: https://review.opendev.org/677218, prior to that groupvars for each role did have the CIDR pulled from the neutron port created by the role template.

[Harald Jensås (harald-jensas)]

https://bugzilla.redhat.com/show_bug.cgi?id=1877164

[Harald Jensås (harald-jensas)]

The proposed fix: https://review.opendev.org/750130

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/752349

[OpenStack Infra (hudson-openstack)]

Change abandoned by Harald Jensås (<email address hidden>) on branch: master
Review: https://review.opendev.org/752349
Reason: Discussed with Rabi, and we conclude to go with https://review.opendev.org/750130 instead of this revert.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/750130
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=cd53ae79c79650c4ad1e774dad0bce60a3078c69
Submitter: Zuul
Branch: master

commit cd53ae79c79650c4ad1e774dad0bce60a3078c69
Author: Harald Jensås <email address hidden>
Date: Thu Sep 17 01:02:30 2020 +0200

    Get the CIDR of the neutron port for NetworkConfig

    Since GroupVars moved to overcloud.j2.yaml in
    https://review.opendev.org/677218 the CIDR set in
    '{{network.name_lower}}_cidr' in groupvars is limited
    to one of the subnets on the network.

    When a network have multiple subnets with different
    subnet prefixes, this becomes a problem as nodes are
    configured with the from subnet mask.

    This change moves them to AnsibleHostVars.

    Closes-Bug: #1895899
    Change-Id: I4e4e5b1195d17f59c825a3f7df73920921e1f86e

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/ussuri
Review: https://review.opendev.org/753258

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/train
Review: https://review.opendev.org/753259

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/753258
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=3752f15cd08624934ae44c628a28e19c5380aaec
Submitter: Zuul
Branch: stable/ussuri

commit 3752f15cd08624934ae44c628a28e19c5380aaec
Author: Harald Jensås <email address hidden>
Date: Thu Sep 17 01:02:30 2020 +0200

    Get the CIDR of the neutron port for NetworkConfig

    Since GroupVars moved to overcloud.j2.yaml in
    https://review.opendev.org/677218 the CIDR set in
    '{{network.name_lower}}_cidr' in groupvars is limited
    to one of the subnets on the network.

    When a network have multiple subnets with different
    subnet prefixes, this becomes a problem as nodes are
    configured with the from subnet mask.

    This change moves them to AnsibleHostVars.

    Closes-Bug: #1895899
    Change-Id: I4e4e5b1195d17f59c825a3f7df73920921e1f86e
    (cherry picked from commit cd53ae79c79650c4ad1e774dad0bce60a3078c69)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/753259
Committed: https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=5a7f9e14d0ee9bb5c7949a339137778b7ea0c470
Submitter: Zuul
Branch: stable/train

commit 5a7f9e14d0ee9bb5c7949a339137778b7ea0c470
Author: Harald Jensås <email address hidden>
Date: Thu Sep 17 01:02:30 2020 +0200

    Get the CIDR of the neutron port for NetworkConfig

    Since GroupVars moved to overcloud.j2.yaml in
    https://review.opendev.org/677218 the CIDR set in
    '{{network.name_lower}}_cidr' in groupvars is limited
    to one of the subnets on the network.

    When a network have multiple subnets with different
    subnet prefixes, this becomes a problem as nodes are
    configured with the from subnet mask.

    This change moves them to AnsibleHostVars.

    Closes-Bug: #1895899
    Change-Id: I4e4e5b1195d17f59c825a3f7df73920921e1f86e
    (cherry picked from commit cd53ae79c79650c4ad1e774dad0bce60a3078c69)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tripleo-heat-templates 11.4.0 release.