Change the default Pod CIDR to 10.20.0.0/14 #401
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* Change the default Pod CIDR from 10.2.0.0/16 to 10.20.0.0/14 (10.20.0.0 - 10.23.255.255) to support 1024 nodes by default * Most CNI providers divide the Pod CIDR so that each node has a /24 to allocate to local pods (256). The previous `10.2.0.0/16` default only fits 256 /24's so 256 nodes were supported without customizing the pod_cidr
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10.2.0.0/16default only fits 256 /24's so 256 nodes were supported without customizing the pod_cidr