Files
jbod-monitor/k8s/daemonset.yaml
adam 4c68bff964 Add k8s DaemonSet design for RKE2 nodes (Model A, per-node self-contained)
Design artifact (NOT applied). Per-node pod = host-poller + redis + web sharing
pod localhost; only host-poller privileged with hostPath /dev+/sys. No SAS
poller (no enclosures). MQTT_NODE_ID from spec.nodeName; MQTT creds via VSO
VaultStaticSecret reading secret/home_assistant (mqtt_user/pass -> MQTT_USERNAME/
PASSWORD). nodeSelector jbod-monitor=enabled to pin to pascal/currie/fermi.
2026-06-16 19:41:51 +00:00

105 lines
3.6 KiB
YAML

# jbod-monitor on RKE2 nodes — per-node self-contained DaemonSet (Model A).
#
# Each scheduled node runs one pod = host-poller + redis + web, sharing the
# pod's localhost (no hostNetwork needed). Only host-poller is privileged and
# mounts /dev + /sys to read IPMI / SMART / coretemp. web egresses to the MQTT
# broker and publishes a per-node HA device (MQTT_NODE_ID = spec.nodeName).
#
# No SAS poller (these nodes have no SES enclosures). NOTE: without it there is
# no zfs_map, so host-drive entities won't carry a ZFS pool label.
#
# Target nodes are chosen by label — see k8s/README.md (label only
# pascal/currie/fermi). Apply order: namespace -> VaultStaticSecret -> this.
---
apiVersion: v1
kind: Namespace
metadata:
name: jbod-monitor
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: jbod-monitor
namespace: jbod-monitor
labels:
app: jbod-monitor
spec:
selector:
matchLabels:
app: jbod-monitor
template:
metadata:
labels:
app: jbod-monitor
spec:
# Only nodes explicitly opted in (see README: kubectl label node ...).
nodeSelector:
jbod-monitor: "enabled"
# If the registry needs auth, sync a regcred and uncomment:
# imagePullSecrets:
# - name: regcred
containers:
- name: redis
image: redis:7-alpine
args: ["redis-server", "--save", "60", "1", "--loglevel", "warning"]
volumeMounts:
- name: redis-data
mountPath: /data
resources:
requests: {cpu: 25m, memory: 32Mi}
limits: {memory: 128Mi}
- name: host-poller
image: docker.adamksmith.xyz/jbod-host-poller:514502e
securityContext:
privileged: true # raw /dev access for ipmitool + smartctl
env:
- {name: TZ, value: "America/Denver"}
- {name: REDIS_HOST, value: "127.0.0.1"}
- {name: REDIS_PORT, value: "6379"}
- {name: HOST_ENV_INTERVAL, value: "60"}
- {name: HOST_DRIVE_INTERVAL, value: "300"}
- {name: POLL_CONCURRENCY, value: "1"}
- {name: POLL_DRIVE_GAP, value: "0.5"}
- {name: POLL_STARTUP_JITTER, value: "10"}
- {name: POLL_DATA_TTL, value: "900"}
volumeMounts:
- {name: dev, mountPath: /dev}
- {name: sys, mountPath: /sys, readOnly: true}
- {name: udev, mountPath: /run/udev, readOnly: true}
resources:
requests: {cpu: 25m, memory: 64Mi}
limits: {memory: 256Mi}
- name: web
image: docker.adamksmith.xyz/jbod-web:1839e9d
env:
- {name: TZ, value: "America/Denver"}
- {name: REDIS_HOST, value: "127.0.0.1"}
- {name: REDIS_PORT, value: "6379"}
- {name: MQTT_HOST, value: "10.5.30.3"}
- {name: MQTT_PORT, value: "1883"}
- {name: MQTT_DISCOVERY_PREFIX, value: "homeassistant"}
- {name: MQTT_BASE_TOPIC, value: "jbod-monitor"}
- {name: MQTT_PUBLISH_INTERVAL, value: "60"}
- name: MQTT_NODE_ID
valueFrom:
fieldRef:
fieldPath: spec.nodeName
envFrom:
- secretRef:
name: jbod-mqtt # MQTT_USERNAME / MQTT_PASSWORD (see VaultStaticSecret)
resources:
requests: {cpu: 25m, memory: 64Mi}
limits: {memory: 256Mi}
volumes:
- name: redis-data
emptyDir: {}
- name: dev
hostPath: {path: /dev}
- name: sys
hostPath: {path: /sys}
- name: udev
hostPath: {path: /run/udev}