Blank root password for Omnibus does not work for cloud native analytics

Blank root password for Omnibus causes failures for Aggregation Normalizer pod and EA NOI Action Service pod. The following errors - Unauthorized or Not Authorized and a 401 HTTP response code are displayed.

{"name":"clients.kafka","hostname":"tmo-noi-noihybrid-ibm-hdm--47fc-normali-b38b-78dcb486bc-vsc8l","pid":18,"level":40,"tenantId":"cfd95b7e-3bc7-4006-a4a8-a73a79c71255","destination":{"targetUrl":"http://tmo-noi-noihybrid-ea-noi-layer-ea
noiactionservice:5600/api/actions/v1/actions","username":"root"},"err":{"message":"Unauthorized","name":"Error","stack":"**Error: Unauthorized**\n    at Request.callback (/app/node_modules/superagent/lib/node/index.js:883:15)\n    at /app/no
de_modules/superagent/lib/node/index.js:1127:20\n    at IncomingMessage.<anonymous> (/app/node_modules/superagent/lib/node/parsers/json.js:22:7)\n    at IncomingMessage.emit (events.js:388:22)\n    at endReadableNT (internal/streams/read
able.js:1336:12)\n    at processTicksAndRejections (internal/process/task_queues.js:82:21)"},"msg":"Unable to send to primary outgoing webhook","time":"2022-05-04T16:03:52.445Z","v":0}

The credentials in the omni-secret are used for authenticating the requests that are used by the Aggregation Normalizer pod and EA NOI Action Service pod. This secret is a password only secret. The user is root.

Following are the steps to resolve the issue:

1. Set the root password to nonblank.
2. Update the omni-secret by editing the secret.
3. Set the yaml to use an encoded version of the password by using the following command:

   echo newpassword -n | base64

   The -n option for echo is important to avoid sending a newline character to base64.

4. Update the root password in the secret and delete the following pods to restart them:
   1. EA Gateway
   2. Normalizer Aggregation pod
   3. NOI EA Action Service