Azure Explicit Credentials

[lovincyrus]

This PR supports explicit credentials for Azure connector. Closes https://linear.app/rilldata/issue/APP-394/azure-explicit-credential-flow-for-models

Checklist:

• Covered by tests
• Ran it and it works as intended
• Reviewed the diff before requesting a review
• Checked for unhandled edge cases
• Linked the issues it closes
• Checked if the docs need to be updated. If so, create a separate Linear DOCS issue
• Intend to cherry-pick into the release branch
• I'm proud of this work!

[royendo]

Behavior same as s3, will need to add the
create_secrets_from_connectors key when creating model to ensure we're testing with correct connector.

Also, Azure should have three types of connector types

• Connection String
• Storage Account Key
• SAS Token

https://linear.app/rilldata/issue/PLAT-254/support-new-azure-configuration-keys

https://www.figma.com/design/JtG3sbaopjO0xQlyeCjmho/RILL-WIP?node-id=929-91681&t=K9VCihwKY36b4LLN-1

Might need to rebase as this is outputting the raw connector string into the model.yaml again

[lovincyrus]

Latest demo:

CleanShot.2025-11-25.at.17.11.03.mp4

[lovincyrus]

Behavior same as s3, will need to add the
create_secrets_from_connectors key when creating model to ensure we're testing with correct connector.

This change will be committed from this PR #8354

[royendo]

Same comments as s3,

Id pick to not add anything to the YAML for public sources. This makes the logic easier as we wont need to consider "which one should we add?"

A few things i noticed:

it doesnt grab the correct connector_name when multiple connectors
cant see create_secrets_from_connectors in model preview
https://jam.dev/c/5dd636b6-2703-4c58-bd03-c0a6f8c35fbf

but once in lmk and ill do a final review :)

[lovincyrus]

cant see create_secrets_from_connectors in model preview
https://jam.dev/c/5dd636b6-2703-4c58-bd03-c0a6f8c35fbf

#8354 (comment)

[lovincyrus]

Superseded by #8467