A containerized Alloy agent can't reach the host's 127.0.0.1, so even the
beta-local agent must push to beta's wg0 address (10.10.0.2:3100), not
127.0.0.1. Fix the beta example in the README and the agent compose header.
A central Grafana + Loki stack (on beta) fed by a Grafana Alloy agent on
every node, replacing the old SSH-tailed single-host scripts/dashboard.py.
- docker-compose.yml: central Loki (mesh-only :3100) + Grafana (Caddy-fronted)
- loki/config.yml: single-binary, filesystem storage, 30-day retention
- alloy/config.alloy + docker-compose.agent.yml: per-node collector — every
container's stdout/stderr via the Docker socket, Caddy host logs, and the
app's structured JSON logs (errors/access/audit), each line tagged by node
- grafana/: auto-provisioned Loki datasource + a fleet-logs dashboard
(volume by service, error rate, upstream 429s, Caddy 5xx, notifier liveness,
live tail), with a per-node selector
- caddy-grafana.conf, README, .env.example
