feat: add SNMP provider for network device monitoring

[Ojas2095]

Description

Adds a new SNMP provider that enables Keep to query networking devices via SNMP protocol.

Features

• SNMP GET: Query individual OIDs on network devices
• • SNMP WALK: Walk OID subtrees for bulk data collection
• • SNMPv1/v2c support via pysnmp-lextudio library
• • Standard BaseProvider integration with _query() method
• • Configurable host, port, community string, and SNMP version

Changes

• keep/providers/snmp_provider/snmp_provider.py - New provider implementation
• • pyproject.toml - Added pysnmp-lextudio dependency
    Resolves [🔌 Provider]: SNMP provider #2112

---

Note

Medium Risk
Introduces a new provider that performs outbound SNMP network calls and adds a new runtime dependency (pysnmp-lextudio), which could impact deployments and error-handling behavior at runtime.

Overview
Adds a new SnmpProvider that integrates with BaseProvider to query SNMP devices via _query() using SNMP get and walk, with configurable host, port, community, and version (v1/v2c).

Updates dependencies to include pysnmp-lextudio to support the SNMP HLAPI used by the provider.

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Cursor Bugbot has reviewed your changes and found 2 potential issues.

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[cursor]

_format_alert crashes from duplicate keyword arguments

High Severity

_format_alert passes explicit keyword arguments like id, name, status, severity, and source alongside **event. When event contains any of those same keys — which is the anticipated case given the event.get("id", ...) pattern — Python raises a TypeError for duplicate keyword arguments before AlertDto ever processes them. Other providers (e.g., Kibana) avoid this by using event.pop() to remove keys from the dict before **event unpacking.

 

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