feat: add SolarWinds Orion provider #3526

[jyoti369]

Adds a new provider for SolarWinds Orion monitoring platform.

What this does:

• Pulls active alerts and down/warning nodes from Orion via the SWIS REST API (SWQL queries)
• Handles incoming webhook payloads from SolarWinds alert actions
• Maps SolarWinds severity levels (numeric 0-3 and string variants) to Keep alert severities
• Tracks acknowledged and resolved status from webhook notifications

Files added:

• Provider implementation (solarwinds_provider.py) with auth config (host, username, password, verify_ssl)
• Documentation page, auto-generated snippet, provider icon
• Registered in mint.json, overview.mdx, and overview.md

Webhook Demo:
https://drive.google.com/file/d/1lshD06ovc-FFOPBfL3phA72yO5YRgWKQ/view?usp=sharing

Closes #3526

[shahargl]

any demo video of it actually working?

[jyoti369]

any demo video of it actually working?

@shahargl Not yet - I don't have access to SolarWinds Orion to record a live demo. I can put together a screencast showing:
i) The webhook path - a curl POST with a sample SolarWinds alert payload hitting the Keep webhook endpoint and the alert showing up in the Keep UI
ii) The pull path - the provider connecting to the SWIS API and pulling active alerts

Would a local docker-compose setup with a mock/curl demo work, or do you specifically need it against a real Orion instance?

[jyoti369]

@shahargl just checking in - would a curl-based demo (simulating the webhook + pull flow) work for you, or would you prefer something else? happy to put it together whenever you confirm.

[jyoti369]

Hey @shahargl, here's the demo you requested!

SolarWinds Provider - Webhook Demo

https://drive.google.com/file/d/1lshD06ovc-FFOPBfL3phA72yO5YRgWKQ/view\?usp\=sharing

The demo shows:

1. Trigger alert (firing/critical) - SolarWinds alert webhook with Severity=2, IsActive=true
2. Resolved alert (Reset) - Alert with IsActive=false, NotificationType=Reset
3. Acknowledged alert - Alert with IsAcknowledged=true

All three alert types are correctly parsed and displayed in the Keep UI with proper status and severity mapping.