[Netbox Helm chart Kubernetes] Redis configuration not applied - connecting to localhost:6379. Connection refused. -> External redis

[MacherelR]

Hi,

I'm currently trying to deploy Netbox on my kubernetes cluster using the helm chart.
I'd like to use external separate postgresql and redis instances. To do so, I included them in my chart's dependencies:

dependencies:
  - name: redis
    alias: redis1
    repository: file://../redis
    version: 20.11.5
  - name: postgresql
    alias: postgresql
    repository: file://../postgresql
    version: 16.6.3
    condition: postgresql.enabled

Now I followed the documentation of Netbox's helm chart saying if you got an external redis instance you need to defined enabled = false under the redis key.
So I did the following:

redis:
  enabled: true
  
redis1:
  global:
    imageRegistry: <some_registry>
  architecture: "standalone"
  persistence:
    size: 2Gi
    storageClass: ""
  auth:
    enabled: false
  networkPolicy:
    enabled: false
    
tasksRedis:
  database: 0
  ssl: false
  host: <redis_master_svc_name>
  port: 6379
  insecureSkipTlsVerify: true

cachingRedis:
  database: 1
  ssl: false
  host: <redis_master_svc_name>
  port: 6379
  insecureSkipTlsVerify: true

And deployed everything. Redis seems to be deployed just fine but when I trying reaching the Netbox page, I get the error :
Error 111 connecting to localhost:6379. Connection refused., error that also happens at some point in the netbox pod start.

Thing is, I can't find what was wrongly defined as the configuration doesn't seem to be correctly applied to netbox and it still uses the default localhost one to reach redis...

By going exec into the netbox pod and printing its env variable I can see for example:
NETBOX_REDIS1_MASTER_SERVICE_HOST=<Service_IP> which I guess means the config is still transfered somewhere...

Anyone can help ?

[MacherelR]

[UPDATE]
After continuing digging into the source code of netbox and particularly its configurations, I found out that env variables such as:

root@netbox-6fc86b6d96-c8s2n:/etc/netbox/config# env | grep REDIS
NETBOX_REDIS_MASTER_SERVICE_PORT_TCP_REDIS=6379
NETBOX_REDIS_MASTER_PORT_6379_TCP=tcp://<IP>:6379
NETBOX_REDIS_MASTER_SERVICE_PORT=6379
NETBOX_REDIS_MASTER_PORT_6379_TCP_ADDR=<IP>
NETBOX_REDIS_MASTER_PORT_6379_TCP_PROTO=tcp
NETBOX_REDIS_MASTER_SERVICE_HOST=<IP>
NETBOX_REDIS_MASTER_PORT_6379_TCP_PORT=6379
NETBOX_REDIS_MASTER_PORT=tcp://<IP>:6379

But they don't see to be correctly defined in contrast with the configuration setting in /etc/netbox/config :

root@netbox-6fc86b6d96-c8s2n:/etc/netbox/config# cat configuration.py | grep REDIS
REDIS = {
        'HOST': environ.get('REDIS_HOST', 'localhost'),
        'PORT': _environ_get_and_map('REDIS_PORT', 6379, _AS_INT),
        'SENTINELS': [tuple(uri.split(':')) for uri in _environ_get_and_map('REDIS_SENTINELS', '', _AS_LIST) if uri != ''],
        'SENTINEL_SERVICE': environ.get('REDIS_SENTINEL_SERVICE', 'default'),
        'SENTINEL_TIMEOUT': _environ_get_and_map('REDIS_SENTINEL_TIMEOUT', 10, _AS_INT),
        'USERNAME': environ.get('REDIS_USERNAME', ''),
        'PASSWORD': _read_secret('redis_password', environ.get('REDIS_PASSWORD', '')),
        'DATABASE': _environ_get_and_map('REDIS_DATABASE', 0, _AS_INT),
        'SSL': _environ_get_and_map('REDIS_SSL', 'False', _AS_BOOL),
        'INSECURE_SKIP_TLS_VERIFY': _environ_get_and_map('REDIS_INSECURE_SKIP_TLS_VERIFY', 'False', _AS_BOOL),
        'HOST': environ.get('REDIS_CACHE_HOST', environ.get('REDIS_HOST', 'localhost')),
        'PORT': _environ_get_and_map('REDIS_CACHE_PORT', environ.get('REDIS_PORT', '6379'), _AS_INT),
        'SENTINELS': [tuple(uri.split(':')) for uri in _environ_get_and_map('REDIS_CACHE_SENTINELS', '', _AS_LIST) if uri != ''],
        'SENTINEL_SERVICE': environ.get('REDIS_CACHE_SENTINEL_SERVICE', environ.get('REDIS_SENTINEL_SERVICE', 'default')),
        'USERNAME': environ.get('REDIS_CACHE_USERNAME', environ.get('REDIS_USERNAME', '')),
        'PASSWORD': _read_secret('redis_cache_password', environ.get('REDIS_CACHE_PASSWORD', environ.get('REDIS_PASSWORD', ''))),
        'DATABASE': _environ_get_and_map('REDIS_CACHE_DATABASE', '1', _AS_INT),
        'SSL': _environ_get_and_map('REDIS_CACHE_SSL', environ.get('REDIS_SSL', 'False'), _AS_BOOL),
        'INSECURE_SKIP_TLS_VERIFY': _environ_get_and_map('REDIS_CACHE_INSECURE_SKIP_TLS_VERIFY', environ.get('REDIS_INSECURE_SKIP_TLS_VERIFY', 'False'), _AS_BOOL),