Failed to Initialize the Kubernetes Cluster

Symptom

When the Kubernetes cluster initialization is performed on the primary node, "/proc/sys/net/bridge/bridge-nf-call-iptables contents are not set to 1" is reported.

Key Process and Cause Analysis

The value of /proc/sys/net/bridge/bridge-nf-call-iptables is incorrect.

Conclusion and Solution

1. This file cannot be modified using the vim command. Run the following command to set this parameter to 1:

   echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables

2. Check whether the value of /proc/sys/net/bridge/bridge-nf-call-iptables is 1.

   cat /proc/sys/net/bridge/bridge-nf-call-iptables

3. Initialize the Kubernetes cluster again.