[Backport 2.x] Add community_id ingest processor (#12121)

[gaobinlong]

Description

Backport #12121 to 2.x.

Related Issues

#2787

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Failing checks are inspected and point to the corresponding known issue(s) (See: Troubleshooting Failing Builds)
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• Public documentation issue/PR created

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[github-actions]

Compatibility status:

Checks if related components are compatible with change f38c675

Incompatible components

Skipped components

Compatible components

Compatible components: [https://github.com/opensearch-project/custom-codecs.git, https://github.com/opensearch-project/asynchronous-search.git, https://github.com/opensearch-project/performance-analyzer-rca.git, https://github.com/opensearch-project/flow-framework.git, https://github.com/opensearch-project/cross-cluster-replication.git, https://github.com/opensearch-project/job-scheduler.git, https://github.com/opensearch-project/reporting.git, https://github.com/opensearch-project/security.git, https://github.com/opensearch-project/neural-search.git, https://github.com/opensearch-project/geospatial.git, https://github.com/opensearch-project/common-utils.git, https://github.com/opensearch-project/security-analytics.git, https://github.com/opensearch-project/k-nn.git, https://github.com/opensearch-project/anomaly-detection.git, https://github.com/opensearch-project/notifications.git, https://github.com/opensearch-project/performance-analyzer.git, https://github.com/opensearch-project/observability.git, https://github.com/opensearch-project/alerting.git, https://github.com/opensearch-project/ml-commons.git, https://github.com/opensearch-project/index-management.git, https://github.com/opensearch-project/sql.git]

[github-actions]

❌ Gradle check result for f38c675: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❕ Gradle check result for a368080: UNSTABLE

• TEST FAILURES:

      3 org.opensearch.remotestore.RemoteIndexPrimaryRelocationIT.testPrimaryRelocationWhileIndexing

Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[codecov]

Codecov Report

Attention: 32 lines in your changes are missing coverage. Please review.

Comparison is base (03d48e9) 71.20% compared to head (f38c675) 71.14%.

Files	Patch %	Lines
...opensearch/ingest/common/CommunityIdProcessor.java	86.80%	13 Missing and 18 partials ⚠️
...g/opensearch/ingest/common/IngestCommonPlugin.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                2.x   #12244      +/-   ##
============================================
- Coverage     71.20%   71.14%   -0.06%     
- Complexity    59916    59934      +18     
============================================
  Files          4939     4940       +1     
  Lines        281789   282025     +236     
  Branches      41263    41306      +43     
============================================
+ Hits         200643   200657      +14     
- Misses        64233    64413     +180     
- Partials      16913    16955      +42     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[reta]

❌ Gradle check result for f38c675: FAILURE

#10704

[github-actions]

❕ Gradle check result for f38c675: UNSTABLE

• TEST FAILURES:

      1 org.opensearch.remotestore.RemoteIndexPrimaryRelocationIT.testPrimaryRelocationWhileIndexing

Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.