Unable to bind tcp ports

[johan-smits]

Is this a request for help? (If yes, you should use our troubleshooting guide and community support channels, see https://kubernetes.io/docs/tasks/debug-application-cluster/troubleshooting/.):

What keywords did you search in NGINX Ingress controller issues before filing this one? (If you have found any duplicates, you should instead reply there.):

---

Is this a BUG REPORT or FEATURE REQUEST? (choose one):

NGINX Ingress controller version: 0.21.0

Kubernetes version (use kubectl version): 1.11.5

Environment:

• Cloud provider or hardware configuration: AWS

What happened:
Unable to bind tcp ports:

Error: exit status 1
2019/02/06 19:37:49 [notice] 182#182: ModSecurity-nginx v1.0.0
nginx: the configuration file /tmp/nginx-cfg180862801 syntax is ok
2019/02/06 19:37:49 [emerg] 182#182: bind() to 0.0.0.0:587 failed (1: Operation not permitted)
nginx: [emerg] bind() to 0.0.0.0:587 failed (1: Operation not permitted)
nginx: configuration file /tmp/nginx-cfg180862801 test failed

What you expected to happen:
It does work with version 0.17.1

How to reproduce it (as minimally and precisely as possible):
Configure a tcp map to bind the port

Anything else we need to know:
Possible broken due to this PR: #3038 and might be related to: #3668

[aledbf]

@johan-smits please check if you have IPV6 enabled

[aledbf]

@johan-smits also, please use quay.io/kubernetes-ingress-controller/nginx-ingress-controller:dev

[johan-smits]

@aledbf I can confirm that the :dev tag is working. The 0.22.0 is not.
Looking at the commits I can't find the commit that should make it work again, maybe you can ref it?

IPv6 is off.

[aledbf]

@johan-smits master + #3747 and #3748

Edit: In particular, https://github.com/kubernetes/ingress-nginx/pull/3748/files#diff-631c440a9ca70cdc7428a187a6820011R45 is the change fixes this issue.

[johan-smits]

This makes sense, just needs to wait for the 0.23.0 release then.

[aledbf]

Closing. Fixed in master #3748