Support for Azure storage

- Among all the Azure storages, Khiops supports only (via its specific driver) "Files" and "Blobs" (Binary Large Objects)
 - The only supported authentication method is currently the `AZURE_STORAGE_CONNECTION_STRING` embedding the account name and account key

Author: Thierry RAMORASOAVINA

.github/workflows/tests.yml

@@ -138,21 +138,32 @@ jobs:
           echo "Generated AWS configuration..."
           cat  ${GITHUB_WORKSPACE}/.aws/configuration
           /scripts/run_fake_remote_file_servers.sh .  # launch the servers in the background
+
           # Set environment variables for the tests with GCS
           GCS_BUCKET_NAME=data-test-khiops-driver-gcs/khiops_data
           GCS_DRIVER_LOGLEVEL=info  # set to debug for diagnosis
+
           # Set environment variables for the tests with S3
           S3_DRIVER_LOGLEVEL=info  # set to debug for diagnosis
           S3_BUCKET_NAME=s3-bucket
           AWS_SHARED_CREDENTIALS_FILE=${{ github.workspace }}/.aws/credentials
           AWS_CONFIG_FILE=${{ github.workspace }}/.aws/configuration
+
+          # Set environment variables for the tests with Azure
+          AZURE_STORAGE_CONNECTION_STRING='${{ secrets.AZURE_CONNECTION_STRING }}'
+          CLOUD_BLOB_URI_PREFIX=${{ vars.CLOUD_BLOB_URI_PREFIX }}
+          CLOUD_FILE_URI_PREFIX=${{ vars.CLOUD_FILE_URI_PREFIX }}
+                    
           # Persist environment variables for subsequent steps
           echo "GCS_BUCKET_NAME=${GCS_BUCKET_NAME}" >> "$GITHUB_ENV"
           echo "GCS_DRIVER_LOGLEVEL=${GCS_DRIVER_LOGLEVEL}" >> "$GITHUB_ENV"
           echo "S3_DRIVER_LOGLEVEL=${S3_DRIVER_LOGLEVEL}" >> "$GITHUB_ENV"
           echo "S3_BUCKET_NAME=${S3_BUCKET_NAME}" >> "$GITHUB_ENV"
           echo "AWS_SHARED_CREDENTIALS_FILE=${AWS_SHARED_CREDENTIALS_FILE}" >> "$GITHUB_ENV"
           echo "AWS_CONFIG_FILE=${AWS_CONFIG_FILE}" >> "$GITHUB_ENV"
+          echo "AZURE_STORAGE_CONNECTION_STRING=${AZURE_STORAGE_CONNECTION_STRING}" >> "$GITHUB_ENV"
+          echo "CLOUD_BLOB_URI_PREFIX=${CLOUD_BLOB_URI_PREFIX}" >> "$GITHUB_ENV"
+          echo "CLOUD_FILE_URI_PREFIX=${CLOUD_FILE_URI_PREFIX}" >> "$GITHUB_ENV"
       - name: Authenticate to GCP using "Workload Identity Federation"
         if: env.SKIP_EXPENSIVE_TESTS != 'true'
         # For integration tests on GCS we use a real Google account

CHANGELOG.md

@@ -10,6 +10,7 @@
 
 ### Added
 - (`sklearn`) `keep_selected_variables_only` parameter to the predictors (`KhiopsClassifier` and `KhiopsRegressor`)
+- (General) Support for Azure storage
 
 ### Changed
 - (`core`) Rename `variable_part_dimensions` to `inner_variable_dimensions` in Coclustering results.