RADIUS_SHARED_SECRET not working on ARM64 Docker Build

[saandre15]

Describe the bug
I'm using the Docker ARM64 build of this software. I've tried changing the $RADIUS_SHARED_SECRET to admin instead of the default value of secret but it doesn't change anything.

To Reproduce
Steps to reproduce the behavior:

On the client machine:

> radtest demo@realm_name demo 10.175.125.198 1812 admin
Sent Access-Request Id 189 from 0.0.0.0:e097 to 10.175.125.198:1812 length 87
        User-Name = "demo@realm_name"
        User-Password = "demo"
        NAS-IP-Address = 10.175.125.127
        NAS-Port = 1812
        Message-Authenticator = 0x00
        Cleartext-Password = "demo"
(0) Reply verification failed: Received Access-Reject packet from home server 10.175.125.198 port 1812 with invalid Response Authenticator!  (Shared secret is incorrect.)

> radtest demo@realm_name demo 10.175.125.198 1812 secret
Sent Access-Request Id 8 from 0.0.0.0:d45d to 10.175.125.198:1812 length 87
        User-Name = "demo@realm_name"
        User-Password = "demo"
        NAS-IP-Address = 10.175.125.127
        NAS-Port = 1812
        Message-Authenticator = 0x00
        Cleartext-Password = "demo"
Received Access-Accept Id 8 from 10.175.125.198:714 to 10.175.125.127:54365 length 20
> radtest demo@realm_name demo1 10.175.125.198 1812 secret
Sent Access-Request Id 110 from 0.0.0.0:c44b to 10.175.125.198:1812 length 87
        User-Name = "demo@realm_name"
        User-Password = "demo1"
        NAS-IP-Address = 10.175.125.127
        NAS-Port = 1812
        Message-Authenticator = 0x00
        Cleartext-Password = "demo1"
Received Access-Reject Id 110 from 10.175.125.198:714 to 10.175.125.127:50251 length
20

In the pod:

$ echo $RADIUS_SHARED_SECRET
admin

Expected behavior
In the client machine:

> radtest demo@realm_name demo 10.175.125.198 1812 admin
Sent Access-Request Id 8 from 0.0.0.0:d45d to 10.175.125.198:1812 length 87
        User-Name = "demo@realm_name"
        User-Password = "demo"
        NAS-IP-Address = 10.175.125.127
        NAS-Port = 1812
        Message-Authenticator = 0x00
        Cleartext-Password = "demo"
Received Access-Accept Id 8 from 10.175.125.198:714 to 10.175.125.127:54365 length 20

Client :

• OS: Arch Linux x86_64

Server/Docker Build
Architecture: ARM64
OS: Debian 11
Image: vassio/keycloak-radius-plugin:latest-multiarch
Image ID: docker.io/vassio/keycloak-radius-plugin@sha256:f5dbe911dc3a537f60a03626fdb47c42a8a0f9aea4de3f247868bba100356059