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+---
+title: Loki + Fluent Bit (Logging Stack)
+category: systems
+tags: [loki, fluent-bit, logging, observability]
+created: "2026-07-24"
+modified: "2026-07-24"
+---
+
+# Loki + Fluent Bit (Logging Stack)
+
+## Loki
+- **Namespace:** logging (K8s)
+- **External Service:** `loki-external`, LoadBalancer `10.0.30.207:3100`
+- **Caches:** memcached (results-cache, `-m 512 -I 2m`, requests 256Mi/limits 512Mi)
+
+## Fluent Bit v5.0.9
+
+### Coverage
+| Target | How | Status |
+|--------|-----|--------|
+| 9 PVE Hosts | `install-host.sh` auf VM200 | ✅ aktiv |
+| 20 LXC Containers | `install-lxc.sh` | ✅ aktiv (außer CT110 stopped) |
+| 5 QEMU VMs | `qm guest exec` | ✅ aktiv (VM300/301/302/310/311) |
+| 6 K8s Nodes | K8s DaemonSet | ✅ aktiv |
+| VM200 | bereits vorhanden | ✅ aktiv |
+
+### Inputs (Proxmox Hosts)
+- systemd journal (pve*, corosync, pacemaker, ceph, zfs, smartd)
+- auth.log
+- pveproxy/access.log
+- pvedaemon.log
+- cluster.log
+- **PVE Tasks** (`/var/log/pve/tasks/index`) — UPID-Format
+- **Ceph Audit** (`/var/log/ceph/ceph.audit.log`) — JSON
+
+### Scripts
+- `logging/fluent-bit-proxmox/` im iac-homelab Repo
+
+## Query
+```bash
+logcli query --addr http://10.0.30.207:3100 'job=fluent-bit-proxmox'
+```
+
+## Related
+- [[systems/proxmox-cluster]]
+- [[systems/monitoring]]
+- [[systems/rke2-kubernetes]]