DIRAC management

[jlenain]

This PR attempts to handle more gracefully exceptions occurring when DIRAC is initialized. DIRAC client initialization is needed to properly initiate communication with DIRAC services, however, this initialization can fail, for instance for jobs running on the grid (!). Here is an example log of a failed job on DIRAC:

<<<<<<<<<< dqm_processor.sh Standard Output >>>>>>>>>>

Cleaning environment 
Cleaning environment Done

Running
singularity exec --home /home/execute/dir_2367987/DIRAC_Kh6rZ0pilot/19832486 oras://ghcr.io/cta-observatory/nectarchain:latest /opt/conda/envs/nectarchain/bin/python /opt/cta/nectarchain/src/nectarchain/dqm/start_dqm.py --r0 -r 4968 /home/execute/dir_2367987/DIRAC_Kh6rZ0pilot/19832486/runs /home/execute/dir_2367987/DIRAC_Kh6rZ0pilot/19832486/NectarCAM_DQM_Run4968
Input file path: /home/execute/dir_2367987/DIRAC_Kh6rZ0pilot/19832486/runs
Output path: /home/execute/dir_2367987/DIRAC_Kh6rZ0pilot/19832486/NectarCAM_DQM_Run4968
2024-02-01 16:56:30 UTC Framework ERROR: No proxy found
2024-02-01 16:56:30 UTC Framework ERROR: No proxy found
2024-02-01 16:56:30 UTC Framework ERROR: No proxy found
2024-02-01 16:56:30 UTC Framework ERROR: No proxy found
2024-02-01 16:56:30 UTC Framework ERROR: No proxy found
2024-02-01 16:56:30 UTC Framework ERROR: No proxy found
2024-02-01 16:56:30 UTC Framework ERROR: No proxy found
2024-02-01 16:56:30 UTC Framework ERROR: No proxy found
 <<<<<<<<<< dqm_processor.sh Standard Error >>>>>>>>>>

./singularity_wrapper.sh: line 8: dconfig: command not found
./singularity_wrapper.sh: line 9: dinit: command not found
INFO:    Downloading oras image
Traceback (most recent call last):
  File "/opt/cta/nectarchain/src/nectarchain/dqm/start_dqm.py", line 62, in <module>
    from nectarchain.data.management import DataManagement
  File "/opt/cta/nectarchain/src/nectarchain/data/__init__.py", line 2, in <module>
    from .management import *
  File "/opt/cta/nectarchain/src/nectarchain/data/management.py", line 5, in <module>
    DIRAC.initialize()
  File "/opt/conda/envs/nectarchain/lib/python3.11/site-packages/DIRAC/__init__.py", line 258, in initialize
    raise exceptions.DIRACInitError(f"Failed to contact the Configuration Server: {retVal['Message']}")
DIRAC.Core.Utilities.exceptions.DIRACInitError: Failed to contact the Configuration Server: No proxy found

This happens because a DIRAC proxy init can not happen on a worker during a job.

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (a31bad2) 30.92% compared to head (d711069) 30.92%.

Files	Patch %	Lines
src/nectarchain/data/management.py	55.55%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #103      +/-   ##
==========================================
- Coverage   30.92%   30.92%   -0.01%     
==========================================
  Files          60       60              
  Lines        3754     3758       +4     
==========================================
+ Hits         1161     1162       +1     
- Misses       2593     2596       +3     

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