Document testing of discovery-ec2 and repository-s3.

[dblock]

Description

This is a start for documenting testing for discovery-ec2 and repository-s3.

Related Issues

• Upgrade AWS SDK v1 to v2 #7372 (comment)
• [BUG] ./gradlew :plugins:repository-s3:s3ThirdPartyTest fails locally #7867
• [BUG] repository-s3 YAML rest tests and third party tests fail with region mismatch issue #7866
• Defaulting repository-s3 region to empty string #7974

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[dblock]

@raghuvanshraj and @dreamer-89 care to contribute to this?

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/16671/
• CommitID: 2374324

[codecov]

Codecov Report

Merging #7868 (13d3a53) into main (52326d7) will increase coverage by 0.16%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##               main    #7868      +/-   ##
============================================
+ Coverage     70.84%   71.00%   +0.16%     
- Complexity    56530    56580      +50     
============================================
  Files          4714     4714              
  Lines        267213   267213              
  Branches      39182    39182              
============================================
+ Hits         189310   189743     +433     
+ Misses        61916    61483     -433     
  Partials      15987    15987              

Impacted Files	Coverage Δ
.../org/opensearch/discovery/ec2/Ec2NameResolver.java	89.47% <0.00%> (ø)

... and 468 files with indirect coverage changes

[dblock]

@dreamer-89 Thanks for the review. Updated. Care to take another look? I'd like to err on the side of progress vs. perfection - we'll keep adding to these incrementally.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/17229/
• CommitID: 2ac243b
  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 (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/17231/
• CommitID: 2ac243b
  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?

[dreamer-89]

LGTM!
Let's get one more review on discovery-ec2 doc.

[dreamer-89]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/17231/
• CommitID: 2ac243b
  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?

@dblock : Need spotless fix on changes.

* What went wrong:
Execution failed for task ':plugins:repository-s3:spotlessMiscCheck'.
> The following files had format violations:
      README.md
          @@ -22,4 +22,4 @@
           
           ```
           AWS_REGION=us-west-2·amazon_s3_access_key=$AWS_ACCESS_KEY_ID·amazon_s3_secret_key=$AWS_SECRET_ACCESS_KEY·amazon_s3_****_path=path·amazon_s3_bucket=dblock-opensearch·./gradlew·:plugins:repository-s3:s3ThirdPartyTest
          -```
          +```
  Run './gradlew :plugins:repository-s3:spotlessApply' to fix these violations.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❕
• TEST FAILURES:

      1 org.opensearch.search.backpressure.SearchBackpressureIT.testSearchTaskCancellationWithHighCpu
      1 org.opensearch.monitor.fs.FsHealthServiceTests.testFailsHealthOnHungIOBeyondHealthyTimeout
      1 org.opensearch.cluster.allocation.AwarenessAllocationIT.testThreeZoneOneReplicaWithForceZoneValueAndLoadAwareness

• URL: https://build.ci.opensearch.org/job/gradle-check/17259/
• CommitID: 13d3a53
  Please review all flaky tests that succeeded after retry and create an issue if one does not already exist to track the flaky failure.

[dblock]

Maybe @Bukhtawar ?

[dblock]

Codecov is wrong. There's no code changes here.

[dreamer-89]

Tagging @raghuvanshraj @andrross @mch2 for review