This is what we are doing
Create kubernetes secret and stores phoenix api key, phoenix oauth microsoft client id and so on...
In the phoenix deployment yaml use this secret to inject the above variables as env variable
Now PRISMA is flagging that inside the arize phoenix container sensitive value like PHOENIX_SECRET, PHOENIX_OAUTH_MICROSOFT_CLIENT_ID is stored as plain text
What the team is suggesting is to use key vault for fetching the secrets or create a secret manager class and mount it to the deployment and use paths to access variables
I'll try to share the deployment yaml for reference