CLOUDSTACK-7182: NPE while trying to deploy VMs in parallel in isolated network
- Check to see if network is implemented changed from 'state == Implementing||Implemented' to 'state == Implemented'.
The earlier check was a hack to prevent the issue described below.
- At the time of implementing network (using implementNetwork() method), if the VR needs to be deployed then it follows
the same path of regular VM deployment. This leads to a nested call to implementNetwork() while preparing VR nics. This
flow creates issues in dealing with network state transitions. The original call puts network in "Implementing" state
and then the nested call again tries to put it into same state resulting in issues. In order to avoid it, implementNetwork()
call for VR is replaced with below code.