Training: Advanced Debugging I

[amaltaro]

Impact of the new feature
WM in general

Is your feature request related to a problem? Please describe.
Sharing knowledge and empowering WM/Ops to understand and debug the system. Sub-task of #11837

Describe the solution you'd like
Topic of this ticket is: Advanced Debugging I.
Specific debugging items in the current issue are to be elated to the process of deploying and utilizing a common debugging environment:

• Deploying a WMAgent virtual environment

• Take one particular use case and address it during the session: WorkflowUpdater component should not crash on container DID not found error #12033

• Run standard services from source and from Pypi package - stress the difference

• Run a WMAgent component in standalone mode with wmagent-component-standalone

  • Explore Modules && Objects in the global scope during interactive session
  • Execute the main algorithm for a component
  • Execute a module's/component's methods standalone
  • Execute a specific DAO from inside the interactive session of wmagent-component-standalone
  • Execute a DAO from the virtual environment
  • Set a break point within the code
  • Run with iPdb mode activated within the interactive session
  • Run the code through Pdb
  • Search one DID with the current module's Rucio instance
  • Try to simulate the behavior explained at the issue chosen for this session WorkflowUpdater component should not crash on container DID not found error #12033
  • Provide a few line solution to the issue
  • Test the solution interactively
  • Create a PR from the so tested solution

• Extra (if the time allows):

  • Patch components on a running/active agent with the so created PR, using: patchComponent.sh
  • Patch a central services instances, using: patchCluster.sh
  • Run/Create unit tests within the environment

For the expected solution, please refer to the meta-issue for further details (in short: documentation + recorded presentation).

Describe alternatives you've considered
None

Additional context
None