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Update create-cluster-kubeadm.md

pull/5630/merge
eddytruyen 2017-09-24 00:45:38 +02:00 committed by Peter (XiangPeng) Zhao
parent c5ebd07d8f
commit 9fb891b963
1 changed files with 6 additions and 4 deletions
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10
docs/setup/independent/create-cluster-kubeadm.md
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@ -547,6 +547,12 @@ You may have trouble in the configuration if you see Pod statuses like `RunConta
If not, you may still use the [NodePort feature of
services](/docs/concepts/services-networking/service/#type-nodeport) or use `HostNetwork=true`.
1. **Pods cannot access themselves via their Service IP**
Many network add-ons do not yet enable [hairpin mode](https://kubernetes.io/docs/tasks/debug-application-cluster/debug-service/#a-pod-cannot-reach-itself-via-service-ip)
which allows pods to access themselves via their Service IP if they don't know about their podIP. This is an issue
related to [CNI](https://github.com/containernetworking/cni/issues/476). Please contact the providers of the network
add-on providers to get timely information about whether they support hairpin mode.
1. If you are using VirtualBox (directly or via Vagrant), you will need to
ensure that `hostname -i` returns a routable IP address (i.e. one on the
@ -608,10 +614,6 @@ kubectl -n ${NAMESPACE} describe pod ${POD_NAME}
kubectl -n ${NAMESPACE} logs ${POD_NAME} -c ${CONTAINER_NAME}
```
1. Many CNI-based network add-ons do not set [hairpin mode](https://kubernetes.io/docs/tasks/debug-application-cluster/debug-service/#a-pod-cannot-reach-itself-via-service-ip) which allows pods to access
themselves via their Service IP if they don't know about their podIP. Please consult issue [containernetworking/cni#476](https://github.com/containernetworking/cni/issues/476)
for more up-to-date information or directly contact the providers of the network add-on providers to get
timely information about whether they support hairpin mode.
{% endcapture %}