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New internal/server/metrics package emits the legacy text/plain exposition format directly, so we don't pull in prometheus/client_golang. Endpoint is opt-in via RM_METRICS_TOKEN and/or RM_METRICS_TRUSTED_CIDR; route is not mounted at all if neither gate is set. Both gates ANDed when both configured. Per-host gauges (online, last_backup_*, repo_size_bytes, snapshot_count, open_alerts, repo_status), server gauges (hosts_total/online, active_alerts by severity, build_info), and an in-memory job-duration histogram observed from the existing MsgJobFinished branch in the WS handler. Docs in docs/prometheus.md (enable + scrape config + metric reference + dashboard import). Sample dashboard at deploy/grafana/restic-manager-dashboard.json - six panels, Grafana schema 39, single Prometheus datasource variable. Tests: golden render, concurrent observe, bucket boundaries in the metrics package; auth matrix (no auth -> 404, token gate, CIDR gate, both required) in the HTTP layer.
restic-manager
Self-hosted, browser-based, single-pane-of-glass for managing restic backups across a fleet of Linux and Windows endpoints.
Status: pre-alpha. Phase 0 (project bootstrap) complete; Phase 1 (MVP) in progress. See
spec.mdfor the design andtasks.mdfor the roadmap.
What it does (target)
- Central visibility into backup state for every endpoint
- Trigger any restic operation remotely (
backup,forget,prune,check,unlock,snapshots,stats,diff,restore) - Manage per-host backup schedules from the UI
- Live job progress streamed back to the UI
- Restore wizard (browse snapshots, pick paths, restore to original or alternate host)
- Repo health surfacing (size, dedup ratio, last check, lock state)
- Alerting on failure or staleness
- Cross-platform agent (Linux + Windows)
- Ransomware-resistant repo access via append-only credentials
Architecture (one-line summary)
A small Go control-plane on the Proxmox host, lightweight Go agents on each
endpoint that hold an outbound WebSocket to the control-plane, and a
restic/rest-server on Unraid that holds the actual backup data. The
control-plane never touches backup bytes.
Full architecture diagram and component breakdown:
spec.md §3.
Repository layout
cmd/server/ control-plane binary
cmd/agent/ endpoint agent binary
internal/api shared API types (REST + WS envelopes)
internal/server/ HTTP, WS, UI handlers
internal/agent/ service integration, restic runner, local scheduler
internal/restic restic CLI wrapper
internal/store SQLite persistence
internal/crypto secret encryption
internal/auth passwords, sessions, agent tokens
web/ server-rendered templates + static assets
deploy/ Dockerfile, docker-compose.yml, install scripts
design/ UI wireframes (Phase 0 design pass)
Local development
Requires Go 1.25+ (built and tested on 1.26). The floor is set by
modernc.org/sqlite v1.50.
make build # builds cmd/server and cmd/agent into ./bin
make test # runs go test ./...
make lint # runs golangci-lint
make run-server # runs the server (dev defaults)
License
PolyForm Noncommercial 1.0.0 — see LICENSE. Free for personal,
hobby, research, educational, governmental, and other noncommercial use.
Commercial use requires a separate license.