CRD mode breaks metrics listener

[tkam8]

Setup Details

CIS Version : 2.13.0
Build: f5networks/k8s-bigip-ctlr:2.13.0
BIGIP Version: Big IP 15.1.8
AS3 Version: 3.26
Agent Mode: AS3
Orchestration: K8S
Orchestration Version: 1.21.5
Pool Mode: Nodeport
Additional Setup details: Calico

Description

As described in #2726 I am unable to access the metrics endpoint when using custom-resource-mode=true

Steps To Reproduce

1. Deploy CIS with custom-resource-mode=true and --http-listen-address=[::]:8080
   my arguments:

          args: [
            "--bigip-username=$(BIGIP_USERNAME)",
            "--bigip-password=$(BIGIP_PASSWORD)",
            "--bigip-url=[2400:c:1:c:0:0:0:114]",
            "--bigip-partition=k8s",
            "--insecure=true",
            "--pool-member-type=nodeport",
            "--custom-resource-mode=true",
            "--http-listen-address=[::]:8080",
            "--log-as3-response=true",
            "--log-level=debug",
            "--as3-validation=true",
            "--agent=as3",
            "--filter-tenants=true",
            "--disable-teems=true",
            "--enable-ipv6=true",
            "--verify-interval=60"
            ]

2. Try to hit metrics or health endpoints, note connection refused.

Expected Result

I expect to get metrics and hit the listening port defined

# nsenter -t 84051 -n netstat -an
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp6       0      0 :::8080                 :::*                    LISTEN <----!!!!!!!!!!!!!!!!!!!!!
tcp6       0      0 2600:2000:1000:11:44520 2600:2000:1000:1111:443 ESTABLISHED
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node   Path

Actual Result

Connection refused

# curl -g http://[2600:2000:1000:1111:14:2:0:6486]:8080/metrics
curl: (7) Failed connect to 2600:2000:1000:1111:14:2:0:6486:8080; Connection refused

# curl -g http://[2600:2000:1000:1111:14:2:0:6486]:8080/health
curl: (7) Failed connect to 2600:2000:1000:1111:14:2:0:6486:8080; Connection refused

Check listening ports, nothing listening on 8080

# nsenter -t 73986 -n netstat -a
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State
tcp6       0      0 worker-117.:39014 2600:2000:1000:11:https ESTABLISHED
Active UNIX domain sockets (servers and established)
Proto RefCnt Flags       Type       State         I-Node   Path

Diagnostic Information

Observations (if any)

[trinaths]

Created [CONTCNTR-4011] for internal tracking.

[lavanya-f5]

dev build: quay.io/f5networks/k8s-bigip-ctlr-devel:41301c5db8f16614fc3f5be053ecbd7fa14e4013