The instructions for installing Cilium omit the --pod-network-cidr argument, create mesh that doesnt work

[andrewhowdencom]

This is a Bug Report

Problem:

When following the instructions to install cilium with kubeadm, the instructions omit the inclusion of the --pod-network-cidr argument.

This appears to create a condition in which the kube-proxy does not SNAT traffic correctly on its return path for containers using the host network -- including those critical for cilium, such as the cilium agent.

This means the install fails.

See https://cilium.io/blog/2018/09/26/bionic-beaver/

Proposed Solution:

Update:

https://cilium.io/blog/2018/09/26/bionic-beaver/

To include the pod CIDR. I just used the one supplied on that page, and it sems to work allright. Better run it past the Cilium authors though.

Page to Update:
https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/

Kubernetes version 1.14

[neolit123]

@andrewhowdencom thanks for catching this.

the instructions omit the inclusion of the --pod-network-cidr argument.

yes, this is true.
are you willing to help by submitting a PR for this repository to fix the problem?

/sig cluster-lifecycle