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nxos_vxlan_vtep: Add dependency checks (#53288)

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* nxos_vxlan_vtep: Add dependency checks

Some of the N9k-specific attrs are failing due to hardware/feature/resources.

 * `global_suppress_arp`
   - dependency on TCAM resources

 * `global_mcast_group_L3`
   - hardware dependency on specific chassis/linecards
   - feature dependency on `ngmvpn`

 * `global_ingress_replication_bgp`
   - hardware dependency on specific chassis/linecards

Tested on N9k with/without TCAM resources, various N9k chassis, N7k, N6k. All 100% Pass.

* pylint
This commit is contained in:
Chris Van Heuveln 2019-03-08 00:03:54 -05:00 • committed by Trishna Guha
commit cfe4477c10
2 changed files with 72 additions and 39 deletions
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20
lib/ansible/modules/network/nxos/nxos_vxlan_vtep.py
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@ -114,6 +114,7 @@ import re
from ansible.module_utils.network.nxos.nxos import get_config, load_config
from ansible.module_utils.network.nxos.nxos import nxos_argument_spec, check_args
from ansible.module_utils.network.nxos.nxos import run_commands
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.network.common.config import CustomNetworkConfig
@ -275,6 +276,22 @@ def fix_commands(commands, module):
return commands
def gsa_tcam_check(module):
'''
global_suppress_arp is an N9k-only command that requires TCAM resources.
This method checks the current TCAM allocation.
Note that changing tcam_size requires a switch reboot to take effect.
'''
cmds = [{'command': 'show hardware access-list tcam region', 'output': 'json'}]
body = run_commands(module, cmds)
if body:
tcam_region = body[0]['TCAM_Region']['TABLE_Sizes']['ROW_Sizes']
if bool([i for i in tcam_region if i['type'].startswith('Ingress ARP-Ether ACL') and i['tcam_size'] == '0']):
msg = "'show hardware access-list tcam region' indicates 'ARP-Ether' tcam size is 0 (no allocated resources). " +\
"'global_suppress_arp' will be rejected by device."
module.fail_json(msg=msg)
def state_present(module, existing, proposed, candidate):
commands = list()
proposed_commands = apply_key_map(PARAM_TO_COMMAND_KEYMAP, proposed)
@ -371,6 +388,9 @@ def main():
proposed[key] = value
candidate = CustomNetworkConfig(indent=3)
if proposed.get('global_suppress_arp'):
gsa_tcam_check(module)
if state == 'present':
if not existing:
warnings.append("The proposed NVE interface did not exist. "