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bridge-nf-call-iptables appears to only be relevant when the containers are attached to a Linux bridge, which is usually the case with default Kubernetes setups, docker, and flannel. That ensures that the container traffic is actually subject to the iptables rules since it traverses a Linux bridge and bridged traffic is only subject to iptables when bridge-nf-call-iptables=1. But with other networking solutions (like openshift-sdn) that don't use Linux bridges, bridge-nf-call-iptables may not be not relevant, because iptables is invoked at other points not involving a Linux bridge. The decision to set bridge-nf-call-iptables should be influenced by networking plugins, so push the responsiblity out to them. If no network plugin is specified, fall back to the existing bridge-nf-call-iptables=1 behavior.
PLEASE NOTE: This document applies to the HEAD of the source tree
If you are using a released version of Kubernetes, you should refer to the docs that go with that version.
The latest release of this document can be found [here](http://releases.k8s.io/release-1.1/docs/admin/README.md).Documentation for other releases can be found at releases.k8s.io.
Kubernetes Cluster Admin Guide
The cluster admin guide is for anyone creating or administering a Kubernetes cluster. It assumes some familiarity with concepts in the User Guide.
Admin Guide Table of Contents
- Introduction
- Components of a cluster
- Cluster Management
- Kubernetes Master Components
- The kube-apiserver binary 1. Authorization 1. Authentication 1. Accessing the api 1. Admission Controllers 1. Administrating Service Accounts 1. Resource Quotas
- The kube-scheduler binary
- The kube-controller-manager binary
- Kubernetes Node Components
- The kubelet binary 1. Garbage Collection
- The kube-proxy binary
- Cluster Addons
- DNS
- Networking
- OVS Networking
- Master <-> Node Communication
- Example Configurations
- Multiple Clusters
- High Availability Clusters
- Large Clusters
- Getting started from scratch 1. Kubernetes's use of salt
- Troubleshooting