I wonder if any HELM guru's can shed some light/point me in the right direction...
I'm testing a PoC where we're using molecular to build an app which has a few services linking in the back-end (ticket,notification). We're using NATS as the transport layer and have managed to get our services to talk to each other when either running the env using docker-compose or a simple k8's file we run using minikube.
Now I'm trying to bring this to our K8's cluster using HELM and am struggling to get NATS to talk to the services. I've tried setting the env var on the services for transportation as nats://nats:4222 and have advertised 4222 as the container port on the NATS chart.
However, once running my helm upgrade install and checking the NATS pod status, it is failing with the following output:
│ [1] 2021/03/19 14:12:21.843799 [INF] STREAM: Streaming Server is ready │
│ [1] 2021/03/19 14:12:23.569211 [ERR] 127.0.0.1:42594 - cid:5 - Client parser ERROR, state=0, i=0: proto='"GET / HTTP/1.1\r\nhost: 10.202.211"...' │
│ [1] 2021/03/19 14:12:32.679854 [ERR] 127.0.0.1:42800 - cid:6 - Client parser ERROR, state=0, i=0: proto='"GET / HTTP/1.1\r\nhost: 10.202.211"...' │
│ [1] 2021/03/19 14:12:33.568306 [ERR] 127.0.0.1:42830 - cid:7 - Client parser ERROR, state=0, i=0: proto='"GET / HTTP/1.1\r\nhost: 10.202.211"...' │
│ [1] 2021/03/19 14:12:42.679902 [ERR] 127.0.0.1:43040 - cid:8 - Client parser ERROR, state=0, i=0: proto='"GET / HTTP/1.1\r\nhost: 10.202.211"...' │
│ [1] 2021/03/19 14:12:43.568204 [ERR] 127.0.0.1:43066 - cid:9 - Client parser ERROR, state=0, i=0: proto='"GET / HTTP/1.1\r\nhost: 10.202.211"...' │
│ [1] 2021/03/19 14:12:52.680184 [ERR] 127.0.0.1:43270 - cid:10 - Client parser ERROR, state=0, i=0: proto='"GET / HTTP/1.1\r\nhost: 10.202.211"...' │
│ [1] 2021/03/19 14:12:53.570613 [ERR] 127.0.0.1:43288 - cid:11 - Client parser ERROR, state=0, i=0: proto='"GET / HTTP/1.1\r\nhost: 10.202.211"...' │
│ [1] 2021/03/19 14:12:55.655059 [INF] STREAM: Shutting down. │
│ [1] 2021/03/19 14:12:55.655252 [INF] Initiating Shutdown... │
│ [1] 2021/03/19 14:12:55.655536 [INF] Server Exiting.. │
│ stream closed
Not sure what I'm missing, should I be advertising the NATS address as an ingress?
Any guidance greatly appreciated
K8's ver: Client: v1.17.2 Server: v1.16.13 HELM ver: v3.1.1 image: nats-streaming:latest (I'm not using the full functionality of streaming, so could downgrade to regular nats if easier)
If you already have a working docker compose yaml, I recommend using Kompose tool to convert Docker Compose yaml to helm chart using below command
Documentation Link : https://kubernetes.io/docs/tasks/configure-pod-container/translate-compose-kubernetes/
Command :