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• The hybrid model of running physical data centers and multi-cloud environments provides flexibility in workload management.
• The main challenge of remote control planes is the communication between the API server and in-cluster components.
• An external load balancer can be used to connect the API server pods to the agents.
• The use of open VPN tunnels or other networking solutions can be replaced by the external load balancer.
• There is an open PR for bi-directional tunneling.
• The main issues with this solution are misconfigured load balancers and sticky sessions.