Oliver Kieselbach
7020a2e5a6
BlockedDeviceService and BlockedVersionService kept their cache per Function App
instance. Once an instance had lazy-loaded a tenant's block list, a cache miss
short-circuited to "not blocked" without ever re-consulting storage — so a Kill
(or Block) added on instance A stayed invisible to instance B for the lifetime
of the process. Live repro: device was killed at 13:11:46Z and kept posting
telemetry for 11+ minutes afterwards on every cadence tick.
BlockedDeviceService.IsBlockedAsync now has two safety nets to bridge other
instances to storage:
- Cache miss after tenant was loaded -> storage point-read on the spot, then
promote the result into the cache. Lets a freshly-set block from another
instance reach this instance immediately.
- Positive cache hit older than EntryRevalidateAfter (30s) -> storage
point-read to re-confirm. Lets manual Unblock, Action upgrade (Block->Kill),
and UnblockAt changes from another instance propagate within seconds.
BlockedVersionService CacheRefreshInterval lowered from 5min to 30s for the same
reason — a version-Kill should not take up to five minutes per instance.
IDeviceSecurityRepository.IsDeviceBlockedAsync gains a BlockedSessionIds tuple
slot so the cache-miss fallback preserves session-aware semantics instead of
silently degrading session-scoped blocks to whole-device.
Tests cover the cache-miss fallback for both Block and Kill actions, the
stale-positive Block->Kill upgrade path, and the stale-positive Unblock path.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Autopilot Monitor
Advanced monitoring and troubleshooting solution for Windows Autopilot deployments. Gain full visibility into every enrollment session with a detailed event timeline, fleet health dashboards, and session reporting. Define custom analysis rules to automatically detect issues and gather rules to collect targeted evidence. Retrieve diagnostics packages on demand, configure agent settings like auto-reboot behavior and automatic timezone adjustment — all managed centrally from the web dashboard.
Private Preview
Autopilot Monitor is currently running as a Private Preview. Visit autopilotmonitor.com to request access and learn more.
Overview
Autopilot Monitor provides real-time tracking, intelligent diagnostics, and automated troubleshooting for Windows Autopilot enrollment processes. It consists of:
- Bootstrap Script — PowerShell script deployed via Intune that starts monitoring early in the enrollment process
- Monitoring Agent — Lightweight .NET application that collects telemetry and evidence during enrollment
- Backend API — Azure Functions-based ingestion and processing pipeline
- Web Dashboard — Next.js application for real-time monitoring and fleet analytics
Architecture
For detailed information about the system architecture, components, and data flow, see Architecture Documentation.
Documentation
Full documentation is available at autopilotmonitor.com/docs
License
This project uses a split licensing model:
- MIT License — Agent (
src/Agent/) and Shared library (src/Shared/) — unrestricted use on end-user devices - AGPL-3.0 — Backend (
src/Backend/), Web Dashboard (src/Web/), and MCP Server (src/McpServer/) — server-side components remain open source
See LICENSE for full details.