Add Fivetran community solution (DCR-based connector, analytics, workbook)

[woodsonsecurity]

Change(s)

Adds a new community solution: Fivetran.

Fivetran pushes its platform/connector External Logs into Azure Monitor via the DCR-based Logs Ingestion API. This solution ships the Sentinel content for that feed.

Included:

• Data connector (gallery tile, status/docs) + DCR + custom table (Fivetran_CL)
• Parser (Fivetran)
• 2 Analytic rules: Ingestion Gap, Auth Failures
• 1 Hunting query: Severe log spike
• Workbook
• SolutionMetadata, Data manifest, ReleaseNotes, README

How to test

Deploy the solution, connect a Fivetran account via External Logs (DCR mode), then run Fivetran_CL | take 10.

• Analytic rules validated (KQL)
• ARM-TTK validated (48/49; the 1 fail is the ignored IDs Should Be Derived From ResourceIDs false positive)

[woodsonsecurity]

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[woodsonsecurity]

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[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds a new Fivetran community solution for Microsoft Sentinel, including a DCR-based ingestion path and associated Sentinel content (connector tile, parser, analytics, hunting, workbook), plus packaging metadata.

Changes:

• Added Fivetran workbook, parser, hunting query, and two analytic rules referencing Fivetran_CL.
• Added solution metadata, release notes, README/packaging docs, and MITRE coverage notes.
• Added generated V3 solution package artifacts (mainTemplate.json, createUiDefinition.json, testParameters.json) and KQL validation custom table schema.

Reviewed changes

Copilot reviewed 18 out of 20 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
Solutions/Fivetran/Workbooks/Fivetran.json	Adds an overview workbook with basic volume/severity visualizations.
Solutions/Fivetran/SolutionMetadata.json	Adds Content Hub publisher/support metadata for the solution.
Solutions/Fivetran/ReleaseNotes.md	Adds initial release notes entry.
Solutions/Fivetran/README.md	Documents solution purpose, contents, and deployment guidance.
Solutions/Fivetran/Parsers/Fivetran.yaml	Adds the Fivetran parser function over Fivetran_CL.
Solutions/Fivetran/Package/testParameters.json	Adds ARM test parameters for validating the generated package.
Solutions/Fivetran/Package/mainTemplate.json	Adds the generated solution deployment template (content + metadata).
Solutions/Fivetran/Package/createUiDefinition.json	Adds the generated CreateUiDefinition for solution installation UX.
Solutions/Fivetran/PACKAGING.md	Documents how the V3 package was generated and validated.
Solutions/Fivetran/MITRE-COVERAGE.md	Documents MITRE mappings rationale for the included content.
Solutions/Fivetran/Hunting Queries/FivetranSevereSpike.yaml	Adds a hunting query for SEVERE spikes.
Solutions/Fivetran/Data/Solution_Fivetran.json	Adds the solution manifest used by the packaging tool.
Solutions/Fivetran/Data Connectors/Fivetran_CCF/Fivetran_Table.json	Adds an ARM template to create the custom table schema.
Solutions/Fivetran/Data Connectors/Fivetran_CCF/Fivetran_DataConnector.json	Adds a “status/docs” GenericUI connector tile definition.
Solutions/Fivetran/Data Connectors/Fivetran_CCF/Fivetran_DCR.json	Adds an ARM template to create the DCR for Logs Ingestion API.
Solutions/Fivetran/Analytic Rules/FivetranIngestionGap.yaml	Adds an analytic rule for ingestion gaps (telemetry loss).
Solutions/Fivetran/Analytic Rules/FivetranAuthFailures.yaml	Adds an analytic rule for repeated auth/credential failures.
.script/tests/KqlvalidationsTests/CustomTables/Fivetran_CL.json	Adds a test schema stub so KQL validation recognizes Fivetran_CL.

[woodsonsecurity]

All items raised on this PR have now been addressed:

Copilot review threads (9/9 replied and resolved)

• Support link now uses a valid GitHub handle (woodsonsecurity) in SolutionMetadata.json and mainTemplate.json.
• Connector tile isPreview aligned with the generated package (false).
• Connector tile permissions use the canonical Microsoft.OperationalInsights/workspaces + workspaces/sharedKeys block.
• README references only shipped artifacts.
• MITRE-COVERAGE notes the authoritative T1562 -> T1685 renumbering (T1562 retained because Sentinel tooling still requires it).
• Remaining flags (ReleaseNotes table marker, generation-time BasePath, savedSearch scope, workspace-location boilerplate) were verified as false positives that match current merged V3 solutions; each has an in-thread explanation.

CI gate fixes

• Registered Fivetran in .script/tests/detectionTemplateSchemaValidation/ValidConnectorIds.json.
• Corrected the data-connector permissions block for Data Connector Validation.

Packaging completeness

• Confirmed Logos/Fivetran.svg and .script/tests/KqlvalidationsTests/CustomTables/Fivetran_CL.json are included so logo and KQL table-schema validation pass.

The branch is rebased onto current master (single clean commit) and the PR is mergeable. Ready for maintainer review. Thanks!