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Existing set of APIs will be used for adding/deleting VMs to/from Internal LB Rule.

• assignToLoadBalancerRule
• deleteFromLoadBalancerRule

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Internal Load Balancing Vm management and life cycle

The VM gets 1) The InternalLBVM will be created with 2 interfaces: eth0 - linkLocal (private in VMWare case), eth1 - the IP address of the LB rule.

3) InternalLBVM will be managed by InternalLBNetworkApplianceManager

2) InternalLBVM Vm life cycle:

• Create: InternalLBVM gets created when the first Load Balancing Rule is created for the IP address
• Destroy: InternalLBVM gets destroyed when the last Load Balancer is removed for the IP address
• Reboot: InternalLBVM can be rebooted as a regular system vm using RebootSystemVm API.
• List: InternalLBVM can be listed with ListSystemVMs API

Limitations

• Internal and Public Lb are mutually exclusive on a tier. If the tier has LB on the public side, then it can't have the Internal LB
• Supported just on VPC networks

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