Add zfs-scrub cronjob.
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5 changed files with 137 additions and 0 deletions
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@ -17,3 +17,4 @@ resources:
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- ./node-feature-discovery/ks.yaml
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- ./reloader/ks.yaml
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- ./spegel/ks.yaml
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- ./zfs-scrub/ks.yaml
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85
kubernetes/apps/kube-system/zfs-scrub/app/helmrelease.yaml
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85
kubernetes/apps/kube-system/zfs-scrub/app/helmrelease.yaml
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@ -0,0 +1,85 @@
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---
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# yaml-language-server: $schema=https://raw.githubusercontent.com/bjw-s/helm-charts/main/charts/other/app-template/schemas/helmrelease-helm-v2beta2.schema.json
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apiVersion: helm.toolkit.fluxcd.io/v2beta2
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kind: HelmRelease
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metadata:
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name: &app zfs-scrub
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spec:
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interval: 30m
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chart:
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spec:
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chart: app-template
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version: 3.1.0
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sourceRef:
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kind: HelmRepository
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name: bjw-s
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namespace: flux-system
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install:
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remediation:
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retries: 3
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upgrade:
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cleanupOnFail: true
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remediation:
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retries: 3
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strategy: rollback
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values:
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controllers:
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kubanetics:
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type: cronjob
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cronjob:
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schedule: "@weekly"
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parallelism: 1 # Set to my total number of nodes
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containers:
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app:
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image:
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repository: ghcr.io/onedr0p/kubanetics
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tag: 2024.5.4@sha256:220ceb1bc1adca0b3ac45cedb3682091ff6f7f3725769fc22decbd3bb2091478
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env:
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SCRIPT_NAME: zfs-scrub.sh
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probes:
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liveness:
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enabled: false
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readiness:
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enabled: false
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startup:
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enabled: false
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resources:
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requests:
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cpu: 25m
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limits:
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memory: 128Mi
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securityContext:
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privileged: true
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pod:
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hostNetwork: true
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hostPID: true
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topologySpreadConstraints:
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- maxSkew: 1
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topologyKey: kubernetes.io/hostname
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whenUnsatisfiable: DoNotSchedule
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labelSelector:
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matchLabels:
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app.kubernetes.io/name: *app
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persistence:
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zfs-scrub:
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type: configMap
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name: zfs-scrub-configmap
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defaultMode: 0775
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globalMounts:
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- path: /app/zfs-scrub.sh
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subPath: zfs-scrub.sh
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readOnly: true
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procfs:
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type: hostPath
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hostPath: /proc
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hostPathType: Directory
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globalMounts:
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- path: /host/proc
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readOnly: true
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netfs:
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type: hostPath
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hostPath: /sys
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hostPathType: Directory
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globalMounts:
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- path: /host/net
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readOnly: true
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10
kubernetes/apps/kube-system/zfs-scrub/app/kustomization.yaml
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10
kubernetes/apps/kube-system/zfs-scrub/app/kustomization.yaml
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@ -0,0 +1,10 @@
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---
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# yaml-language-server: $schema=https://json.schemastore.org/kustomization
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apiVersion: kustomize.config.k8s.io/v1beta1
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kind: Kustomization
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resources:
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- ./helmrelease.yaml
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configMapGenerator:
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- name: zfs-scrub-configmap
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files:
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- zfs-scrub.sh=./resources/zfs-scrub.sh
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@ -0,0 +1,20 @@
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#!/usr/bin/env bash
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KUBELET_BIN="/usr/local/bin/kubelet"
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KUBELET_PID="$(pgrep -f $KUBELET_BIN)"
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ZPOOL="nahar"
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if [ -z "${KUBELET_PID}" ]; then
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echo "kubelet not found"
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exit 1
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fi
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# Enter namespaces and run commands
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nsrun() {
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nsenter \
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--mount="/host/proc/${KUBELET_PID}/ns/mnt" \
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--net="/host/proc/${KUBELET_PID}/ns/net" \
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-- bash -c "$1"
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}
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# Scrub filesystems
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nsrun "zpool scrub ${ZPOOL}"
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21
kubernetes/apps/kube-system/zfs-scrub/ks.yaml
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21
kubernetes/apps/kube-system/zfs-scrub/ks.yaml
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---
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# yaml-language-server: $schema=https://ks.hsn.dev/kustomize.toolkit.fluxcd.io/kustomization_v1.json
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apiVersion: kustomize.toolkit.fluxcd.io/v1
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kind: Kustomization
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metadata:
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name: &app zfs-scrub
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namespace: flux-system
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spec:
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targetNamespace: kube-system
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commonMetadata:
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labels:
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app.kubernetes.io/name: *app
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path: ./kubernetes/apps/kube-system/zfs-scrub/app
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prune: true
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sourceRef:
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kind: GitRepository
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name: homelab
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wait: false
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interval: 30m
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retryInterval: 1m
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timeout: 5m
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