Fix #2514: SharedIndexInformer watches only pods of its own namespace when run in the cluster

[rohanKanojia]

Fix #2514

Introduced a boolean field namespaceFromGlobalConfig in OperationContext with which we would be able to distinguish whether namespace is set from Global Configuration or Operation's context

This is also related to:

• SharedIndexInformer watches only pods of its own namespace when run in the cluster #2527
• https://stackoverflow.com/questions/64204044/

Description

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change
• Chore (non-breaking change which doesn't affect codebase;
  test, version modification, documentation, etc.)

Checklist

• Code contributed by me aligns with current project license: Apache 2.0
• I Added CHANGELOG entry regarding this change
• I have implemented unit tests to cover my changes
• I have added/updated the javadocs and other documentation accordingly
• No new bugs, code smells, etc. in SonarCloud report
• I tested my code in Kubernetes
• I tested my code in OpenShift

[sonarqubecloud]

SonarCloud Quality Gate failed.

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
9 Code Smells

25.5% Coverage
0.8% Duplication

The version of Java (1.8.0_265) you have used to run this analysis is deprecated and we will stop accepting it from October 2020. Please update to at least Java 11.
Read more here

[sonarqubecloud]

SonarCloud Quality Gate failed.

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
9 Code Smells

22.3% Coverage
0.8% Duplication

The version of Java (1.8.0_272) you have used to run this analysis is deprecated and we will stop accepting it accepting it soon.Please update to at least Java 11.
Read more here

[manusa]

[merge]

[rohanKanojia]

[merge]