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Home Assistant over MQTT: each array as a device with sensors and buttons - #33
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…tons MQTT discovery makes every array a device in Home Assistant: health, problem and job-running binary sensors, bad blocks, last sync and scrub, scrubbed share, temperature and fill level per disk, and buttons for sync and scrub. A sync from Home Assistant goes through the sync guard of new schedules. State comes from the same cached snapshot as the Prometheus metrics (now shared in array-snapshot.ts), so publishing never wakes a disk; it is sent on change, with a last will for availability, and discovery again when Home Assistant restarts. Set up under Automation, with a connection test. With unit and end-to-end tests (MQTT broker in the test) and documentation. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01JuXnquCPdbG5sBbDyin7yF
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Each array becomes a device in Home Assistant through MQTT discovery. Home Assistant's own MQTT integration picks the entities up, so there is no custom integration to install.
Entities per array (device SnapRAID <name>)
ok,errors,disk_missing,sync_incomplete,unknown)How
array-snapshot.ts, which both now use.snapraid-ui/statusreports online/offline through the MQTT last will, so the entities turn unavailable when SnapRAID UI is down.homeassistant/status). Entities of removed arrays are cleared.home-assistant.ts: pure functions (slugs, state, discovery, command parsing).home-assistant-service.ts: MQTT connection and settings, usingnpm:mqtt.routes/home-assistant.ts: GET/PUT settings with the password masked; settings are stored inhome-assistant.jsonwith mode 600. PlusPOST /test.home-assistant.jsonis now part of the backup. The docs table also lists the automation files.Tests
home-assistant.spec.tsstarts an MQTT broker (aedes) in the test, sets Home Assistant up in the UI, checks that discovery and state arrive, and presses the Scrub and Sync buttons over MQTT.automation.md(entities, guard, example automation), API rows inarchitecture.md,development.md,disks.md(backup), README.mkdocs build --strictpasses.This PR, #31 and #32 each add translation keys and a row to the E2E table in
development.md. Whichever merges later needs a rebase; I'll do it.🤖 Generated with Claude Code
https://claude.ai/code/session_01JuXnquCPdbG5sBbDyin7yF
Generated by Claude Code