Since the CloudStack virtual router was redesigned on version 4.6 it has been observed that the DHCP leases file is not persistent across network operations. This causes conflicts on guest VMs static IPs, causing these static IPs to not be renewed by the DHCP server running on isolated and VPC networks' virtual routers (dnsmasq). On stopping or destroying a VM, its dhcp/dns records are not removed from the virtual router causing ghost effects.
Fixes#3272Fixes#3354
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
Making code clearer and simple.
Conflicts:
server/src/com/cloud/network/rules/PrivateGatewayRules.java
server/src/com/cloud/network/rules/VirtualNetworkApplianceFactory.java
server/src/org/apache/cloudstack/network/topology/BasicNetworkTopology.java
server/src/org/apache/cloudstack/network/topology/NetworkTopologyVisitor.java