[Backport 2.13] add missing ctx variables (#710)

[jowg-amazon]

Description

Backport #710 to 2.13

Issues Resolved

[List any issues this PR will resolve]

Check List

• [ ] New functionality includes testing.
  • [ ] All tests pass
• [ ] New functionality has been documented.
  • [ ] New functionality has javadoc added
• [ ] Commits are signed per the DCO using --signoff

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[jowg-amazon]

Closing in favor of: https://github.com/opensearch-project/common-utils/pull/719