server: fix conserve_mode of DefaultIsolatedNetworkOfferingForVpcNetworks

Author: weizhouapache

engine/schema/src/main/resources/META-INF/db/schema-42010to42100.sql

@@ -203,3 +203,6 @@ SET `sort_key` = CASE
     ELSE `sort_key`
 END;
 -- End: Changes for Guest OS category cleanup
+
+-- Re-apply VPC: update default network offering for vpc tier to conserve_mode=1 (#8309)
+UPDATE `cloud`.`network_offerings` SET conserve_mode=1 WHERE name='DefaultIsolatedNetworkOfferingForVpcNetworks';

server/src/main/java/com/cloud/server/ConfigurationServerImpl.java

@@ -1121,7 +1121,7 @@ public void doInTransactionWithoutResult(TransactionStatus status) {
                 NetworkOfferingVO defaultNetworkOfferingForVpcNetworks =
                         new NetworkOfferingVO(NetworkOffering.DefaultIsolatedNetworkOfferingForVpcNetworks,
                                 "Offering for Isolated Vpc networks with Source Nat service enabled", TrafficType.Guest, false, false, null, null, true, Availability.Optional,
-                                null, Network.GuestType.Isolated, false, false, false, false, true, true);
+                                null, Network.GuestType.Isolated, true, false, false, false, true, true);
 
                 defaultNetworkOfferingForVpcNetworks.setState(NetworkOffering.State.Enabled);
                 defaultNetworkOfferingForVpcNetworks.setSupportsVmAutoScaling(true);