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Merge pull request #26770 from neha-viswanathan/26722-network-addon 

Replace network solution with network add-on
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Kubernetes Prow Robot 2021-03-01 12:53:26 -08:00 committed by GitHub
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10
content/en/docs/setup/production-environment/tools/kubeadm/troubleshooting-kubeadm.md
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@ -138,10 +138,10 @@ Right after `kubeadm init` there should not be any pods in these states.
- If there are pods in one of these states _right after_ `kubeadm init`, please open an
issue in the kubeadm repo. `coredns` (or `kube-dns`) should be in the `Pending` state
until you have deployed the network solution.
until you have deployed the network add-on.
- If you see Pods in the `RunContainerError`, `CrashLoopBackOff` or `Error` state
after deploying the network solution and nothing happens to `coredns` (or `kube-dns`),
it's very likely that the Pod Network solution that you installed is somehow broken.
after deploying the network add-on and nothing happens to `coredns` (or `kube-dns`),
it's very likely that the Pod Network add-on that you installed is somehow broken.
You might have to grant it more RBAC privileges or use a newer version. Please file
an issue in the Pod Network providers' issue tracker and get the issue triaged there.
- If you install a version of Docker older than 1.12.1, remove the `MountFlags=slave` option
@ -152,14 +152,14 @@ Right after `kubeadm init` there should not be any pods in these states.
## `coredns` (or `kube-dns`) is stuck in the `Pending` state
This is **expected** and part of the design. kubeadm is network provider-agnostic, so the admin
should [install the pod network solution](/docs/concepts/cluster-administration/addons/)
should [install the pod network add-on](/docs/concepts/cluster-administration/addons/)
of choice. You have to install a Pod Network
before CoreDNS may be deployed fully. Hence the `Pending` state before the network is set up.
## `HostPort` services do not work
The `HostPort` and `HostIP` functionality is available depending on your Pod Network
provider. Please contact the author of the Pod Network solution to find out whether
provider. Please contact the author of the Pod Network add-on to find out whether
`HostPort` and `HostIP` functionality are available.
Calico, Canal, and Flannel CNI providers are verified to support HostPort.