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Only apply necessary changes to subnets

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Previously, all subnet properties were updated if any value did not match.
But this behaviour caused errors like e.g. "Current gateway ip 192.168.0.1
already in use by port [ID]. Unable to update." even if that gateway was
not about to be changed.

Task: 40927
Story: 2008172
Change-Id: I049b0dade4c7ea3e1ef24777ae558f650caa136c
This commit is contained in:
Jakob Meng
2020-09-21 14:31:35 +02:00
committed by Shnaidman Sagi (Sergey)
parent a89ec027b0
commit ce421fe370
2 changed files with 19 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
ci/roles/subnet/tasks/subnet-allocation.yml
View File

@@ -37,6 +37,7 @@
name: "{{ subnet_name }}"
state: present
cidr: 192.168.0.0/24
gateway_ip: 192.168.0.1
allocation_pool_start: 192.168.0.2
allocation_pool_end: 192.168.0.8

40
plugins/modules/subnet.py
View File

@@ -221,35 +221,37 @@ class SubnetModule(OpenStackModule):
no_gateway_ip = self.params['no_gateway_ip']
dns = self.params['dns_nameservers']
host_routes = self.params['host_routes']
curr_pool = dict(start=pool_start, end=pool_end)
if pool_start and pool_end:
pool = dict(start=pool_start, end=pool_end)
else:
pool = None
changes = dict()
if subnet['enable_dhcp'] != enable_dhcp:
return True
changes['enable_dhcp'] = enable_dhcp
if subnet_name and subnet['name'] != subnet_name:
return True
if not subnet['allocation_pools'] and pool_start and pool_end:
return True
if subnet['allocation_pools'] != [curr_pool]:
return True
changes['subnet_name'] = subnet_name
if pool and (not subnet['allocation_pools'] or subnet['allocation_pools'] != [pool]):
changes['allocation_pools'] = [pool]
if gateway_ip and subnet['gateway_ip'] != gateway_ip:
return True
changes['gateway_ip'] = gateway_ip
if dns and sorted(subnet['dns_nameservers']) != sorted(dns):
return True
changes['dns_nameservers'] = dns
if host_routes:
curr_hr = sorted(subnet['host_routes'], key=lambda t: t.keys())
new_hr = sorted(host_routes, key=lambda t: t.keys())
if curr_hr != new_hr:
return True
changes['host_routes'] = host_routes
if no_gateway_ip and subnet['gateway_ip']:
return True
return False
changes['disable_gateway_ip'] = no_gateway_ip
return changes
def _system_state_change(self, subnet, filters=None):
state = self.params['state']
if state == 'present':
if not subnet:
return True
return self._needs_update(subnet, filters)
return bool(self._needs_update(subnet, filters))
if state == 'absent' and subnet:
return True
return False
@@ -334,15 +336,9 @@ class SubnetModule(OpenStackModule):
subnet = self.conn.create_subnet(network_name, **kwargs)
changed = True
else:
if self._needs_update(subnet, filters):
subnet = self.conn.update_subnet(subnet['id'],
subnet_name=subnet_name,
enable_dhcp=enable_dhcp,
gateway_ip=gateway_ip,
disable_gateway_ip=no_gateway_ip,
dns_nameservers=dns,
allocation_pools=pool,
host_routes=host_routes)
changes = self._needs_update(subnet, filters)
if changes:
subnet = self.conn.update_subnet(subnet['id'], **changes)
changed = True
else:
changed = False