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by lobster_johnson 3625 days ago
Kubernetes doesn't have a "default" as such. It requires something external to manage the subnet, and needs to be configured to use it.

However, if you run it on AWS, it can automatically configure a bridge (cbr0) and configure up the VPC routing table for you.

GCE (Google's managed Kubernetes on Google Cloud) also handles this automatically.

There's also experimental support for Flannel built into K8s, which can be enabled with a flag. Not sure if it's worth using.

1 comments

Nitpick: Google's managed Kubernetes is called GKE.

However the OSS Kubernetes has code to configure routes on GCE same as it does for AWS.