sysctl: error: 'net.ipv4.ip_local_port_range' is an unknown key

[joshskains]

NGINX Ingress controller version:

master (Used yaml set from deployment instructions using RBAC enabled commands.

Kubernetes version (use kubectl version):

[root@kube-master1-1 ~]# kubectl version
Client Version: version.Info{Major:"1", Minor:"9", GitVersion:"v1.9.2", GitCommit:"5fa2db2bd46ac79e5e00a4e6ed24191080aa463b", GitTreeState:"clean", BuildDate:"2018-01-18T10:09:24Z", GoVersion:"go1.9.2", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"9", GitVersion:"v1.9.2", GitCommit:"5fa2db2bd46ac79e5e00a4e6ed24191080aa463b", GitTreeState:"clean", BuildDate:"2018-01-18T09:42:01Z", GoVersion:"go1.9.2", Compiler:"gc", Platform:"linux/amd64"}

Environment:

• Cloud provider or hardware configuration:

• OS (e.g. from /etc/os-release): CentOS 7

• Kernel (e.g. uname -a):
  [root@kube-master1-1 ~]# uname -a
  Linux kube-master1-1 3.10.0-123.el7.x86_64 Basic structure  #1 SMP Mon Jun 30 12:09:22 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

• Install tools: kubeadm

• Others:

What happened:

jskains-mbp:.kube jskains$ kubectl logs nginx-ingress-controller-6844dff6b7-2lkjg -n ingress-nginx -c sysctl
net.core.somaxconn = 32768
sysctl: error: 'net.ipv4.ip_local_port_range' is an unknown key

What you expected to happen:

The ingress controller to start

How to reproduce it (as minimally and precisely as possible):

Follow deployment instructions

Anything else we need to know:

[cdenneen]

OP using CentOS7

[joshskains]

Fixed in main text. Sorry for missing that.