Adding a log in kamailio.cfg in request_route method:
xlog("L_INFO", "INFO - request_route - $rm ($fu ($si:$sp) to $tu, $ci)\n");

Using docker-compose I get:
24(30) INFO: {1 1 REGISTER Hotel7dIcm7DCPtmR3jACw..} <script>: INFO - 
request_route - REGISTER (sip:cedric@localhost:5060;transport=TCP 
(172.19.0.1:43696) to sip:cedric@localhost:5060;transport=TCP, 
Hotel7dIcm7DCPtmR3jACw..)

But I don't see any log message on AWS :-(

Cedric
________________________________
From: sr-users <[email protected]> on behalf of Cedric 
Thiebault <[email protected]>
Sent: Friday, October 15, 2021 11:52 AM
To: [email protected] <[email protected]>
Subject: [SR-Users] Kamailio on AWS Kubernetes with NLB

Hello,

I'm trying to deploy Kamailio on Kubernetes (AWS EKS with Network Load 
Balancer) but I'm not able to register using TCP.
I'm using official Docker image 5.5.0-buster.
I did some tests with Docker Compose and it worked fine, but on K8S it does not 
:-(

Here are my logs:

Listening on
             udp: 127.0.0.1:5060
             udp: 172.31.4.29:5060
             udp: 172.31.0.221:5060
             tcp: 127.0.0.1:5060
             tcp: 172.31.4.29:5060
             tcp: 172.31.0.221:5060
Aliases:
             tcp: ip-172-31-0-221.eu-central-1.compute.internal:5060
             tcp: 
172-31-4-29.kube-prometheus-stack-prometheus-node-exporter.infra-prometheus.svc.cluster.local:5060
             tcp: localhost4.localdomain4:5060
             tcp: localhost4:5060
             tcp: localhost.localdomain:5060
             tcp: localhost:5060
             udp: ip-172-31-0-221.eu-central-1.compute.internal:5060
             udp: 
172-31-4-29.kube-prometheus-stack-kubelet.kube-system.svc.cluster.local:5060
             udp: localhost4.localdomain4:5060
             udp: localhost4:5060
             udp: localhost.localdomain:5060
             udp: localhost:5060

 0(1) INFO: <core> [core/tcp_main.c:4983]: init_tcp(): using epoll_lt as the io 
watch method (auto detected)
 0(1) INFO: rr [../outbound/api.h:52]: ob_load_api(): unable to import bind_ob 
- maybe module is not loaded
 0(1) INFO: rr [rr_mod.c:188]: mod_init(): outbound module not available
 0(1) INFO: <core> [main.c:3030]: main(): processes (at least): 41 - shm size: 
67108864 - pkg size: 8388608
 0(1) INFO: <core> [core/udp_server.c:154]: probe_max_receive_buffer(): 
SO_RCVBUF is initially 212992
 0(1) INFO: <core> [core/udp_server.c:206]: probe_max_receive_buffer(): 
SO_RCVBUF is finally 425984
 0(1) INFO: <core> [core/udp_server.c:154]: probe_max_receive_buffer(): 
SO_RCVBUF is initially 212992
 0(1) INFO: <core> [core/udp_server.c:206]: probe_max_receive_buffer(): 
SO_RCVBUF is finally 425984
 0(1) INFO: <core> [core/udp_server.c:154]: probe_max_receive_buffer(): 
SO_RCVBUF is initially 212992
 0(1) INFO: <core> [core/udp_server.c:206]: probe_max_receive_buffer(): 
SO_RCVBUF is finally 425984
29(35) INFO: jsonrpcs [jsonrpcs_sock.c:443]: jsonrpc_dgram_process(): a new 
child 0/35
31(37) INFO: ctl [io_listener.c:213]: io_listen_loop(): io_listen_loop:  using 
epoll_lt io watch method (config)
35(41) INFO: <core> [core/parser/parse_fline.c:147]: parse_first_line(): method 
not followed by SP
35(41) ERROR: <core> [core/parser/parse_fline.c:271]: parse_first_line(): 
parse_first_line: bad message (offset: 0)
35(41) ERROR: <core> [core/parser/msg_parser.c:747]: parse_msg(): ERROR: 
parse_msg: message=<>
35(41) ERROR: <core> [core/receive.c:374]: receive_msg(): core parsing of SIP 
message failed (194.230.146.66:9055/2)


And my service:

apiVersion: v1
kind: Service
metadata:
  name: kamailio-tcp
  annotations:
    service.beta.kubernetes.io/aws-load-balancer-nlb-target-type: ip
    service.beta.kubernetes.io/aws-load-balancer-proxy-protocol: '*'
    service.beta.kubernetes.io/aws-load-balancer-scheme: internet-facing
    service.beta.kubernetes.io/aws-load-balancer-target-group-attributes: 
preserve_client_ip.enabled=true
    service.beta.kubernetes.io/aws-load-balancer-type: external
  labels:
    app.kubernetes.io/instance: test-sip
    app.kubernetes.io/name: kamailio-tcp
    app.kubernetes.io/version: 5.5.0-buster
spec:
  type: LoadBalancer
  externalTrafficPolicy: Local
  ports:
    - name: sip-tcp
      nodePort: 30567
      port: 5060
      protocol: TCP
      targetPort: 5060
  selector:
    app.kubernetes.io/instance: test-sip
    app.kubernetes.io/name: kamailio


I have a Netwok Load Balancer create with a listener for TCP 5060 but when I 
try to connect with Zoiper or Linphone, it does not work :-(

I used tcpdump on my pod and it received well some SIP commands.
Any ideas of what could be wrong here?

Thanks in advance!

Cedric
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