Allow attaching a cosmos db account with tenantId.

[mkrueger]

This pull request adds support for handling Azure Cosmos DB connection strings that use either an AccountKey or a TenantId for authentication, instead of requiring only an AccountKey. The changes update validation, parsing, and storage logic throughout the codebase to recognize and propagate TenantId values, and they add tests to ensure correct parsing. Additionally, the URI handler and workspace model are updated to support the new field.

Cosmos DB connection string handling:

• Updated validation and user prompts to accept connection strings that include AccountEndpoint and either AccountKey or TenantId, and clarified error messages and placeholders accordingly. [1] [2] [3]
• Extended the parseCosmosDBConnectionString function and ParsedCosmosDBConnectionString class to extract and store the TenantId property if present. [1] [2] [3]
• Added tests to ensure correct parsing of connection strings with TenantId and with only AccountEndpoint. [1] [2]

Workspace and storage model updates:

• Modified the CosmosDBAttachedAccountModel and related logic to include an optional tenantId field, and ensured the field is persisted and propagated where appropriate (e.g., in storage items and account info). [1] [2] [3] [4] [5]

URI handler and parameter propagation:

• Updated the URI handler to extract, mask, and propagate the tenantId parameter from URIs, and to store it in attached account storage items if present. [1] [2] [3] [4] [5] [6] [7] [8] [9]

Fixes #2620

[sevoku]

LGTM, tried with using a connection string with a specific tenant Id that is not my default and it works like a charm.

[sevoku]

@mkrueger the build is broken, please don't forget to run npm run l10n

See my other comment, let's don't enforce TenantId in the connection string?

[sevoku]

Nice, now I see a prompt and can select the tenant, works like a charm! This is also relevant for #2686.

[Copilot]

Pull request overview

Adds support for attaching Cosmos DB accounts using Entra ID by accepting/storing a TenantId (in addition to AccountKey) across connection-string parsing, URI handling, and workspace persistence.

Changes:

• Extend Cosmos DB connection string parsing/model to extract and propagate TenantId, and update masking accordingly.
• Persist optional tenantId in attached account workspace storage and use it when building account credentials.
• Add a new “select tenant” wizard step for connection strings that don’t include AccountKey or TenantId, plus parsing tests.

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/vscodeUriHandler.ts	Accept tenantId via URI params / parsed connection string and persist it into workspace storage items.
src/tree/workspace-view/cosmosdb/CosmosDBWorkspaceItem.ts	Read tenantId from stored workspace item properties into the attached account model.
src/tree/workspace-view/cosmosdb/CosmosDBAttachedAccountModel.ts	Add optional tenantId to the attached account model type.
src/tree/cosmosdb/AccountInfo.ts	Flow tenantId into credential creation for connection-string and attached-account paths.
src/cosmosdb/cosmosDBConnectionStrings.ts	Parse TenantId from connection strings and store it on ParsedCosmosDBConnectionString.
src/cosmosdb/cosmosDBConnectionStrings.test.ts	Add tests for parsing connection strings with TenantId and with AccountEndpoint only.
src/commands/newConnection/newConnection.ts	Add the new tenant prompt step to the “New Connection” wizard flow.
src/commands/newConnection/NewConnectionWizardContext.ts	Add tenantId to wizard context for cross-step propagation.
src/commands/newConnection/CosmosDBTenantStep.ts	New step: prompt tenant selection when neither AccountKey nor TenantId is present.
src/commands/newConnection/CosmosDBExecuteStep.ts	Persist tenantId into storage item properties when available.
src/commands/newConnection/CosmosDBConnectionStringStep.ts	Extract tenantId from the entered connection string into wizard context.
l10n/bundle.l10n.json	Add localized strings for updated validation text and tenant selection UI.

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