Issue 1230-1 : Use secrets in Pod Yamls.

[rajat-soda]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:

/kind new feature
/kind bug fix
/kind cleanup
/kind revert change
/kind design
/kind documentation
/kind enhancement

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #1230

Test Report Added?:

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
kind TESTED
/kind NOT-TESTED

Test Report:

Special notes for your reviewer:

[codecov]

Codecov Report

Merging #1256 (c286ebb) into master (055adb0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1256   +/-   ##
=======================================
  Coverage   48.00%   48.00%           
=======================================
  Files          10       10           
  Lines        1450     1450           
=======================================
  Hits          696      696           
  Misses        702      702           
  Partials       52       52           

[kumarashit]

LGTM

[rajat-soda]

@asifdxtreme , @AmitRoushan Please review

[AmitRoushan]

IMO, MongoDB INITDB username password should be scerets

[AmitRoushan]

Looks ok to me

[NajmudheenCT]

LGTM