mirror of
https://gitlab.kube.huskypup.net/Scooby/Homelabv4.git
synced 2026-08-21 05:26:49 +00:00
Phase 2: deploy n8n and Nextcloud warm standbys on the VPS
Same CNPG replica-cluster pattern as Authentik (continuous WAL replay from home via VPS MinIO, app at 0 replicas until manual promotion - see infrastructure/vps-standby/authentik/manifests/cnpg-cluster.yaml for the full rationale). n8n: N8N_ENCRYPTION_KEY copied byte-identical from home (kubectl, not git) - decrypts stored credentials in the replicated DB, same reasoning as Vault's unseal key / root token copies. Nextcloud: adds infrastructure/vps-standby/nextcloud/manifests/ pvc-restore-cronjob.yaml, the read side of home's existing nextcloud-pvc-sync restic backup - restores the latest snapshot from VPS MinIO into this standby's PVC daily at 04:00 (2h after home's 02:00 backup). No Redis on the VPS side (no redis-operator deployed there, out of scope for a standby that isn't serving traffic - Nextcloud degrades gracefully to DB-based locking without it).
This commit is contained in:
Scooby Husky
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---
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# CNPG replica cluster continuously replaying WAL from home's pg-nextcloud
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# (apps/nextcloud/manifests/cnpg-cluster.yaml) via VPS MinIO's
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# cnpg-backups/pg-nextcloud bucket path. Same pattern as the authentik/n8n
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# VPS replica clusters - see infrastructure/vps-standby/authentik/
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# manifests/cnpg-cluster.yaml for the full rationale.
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#
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# vps-minio-secret is a plain Secret copied here manually (kubectl, not
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# git):
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# kubectl -n nextcloud create secret generic vps-minio-secret \
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# --from-literal=accesskey=<vps minio root user> \
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# --from-literal=secretkey=<vps minio root password>
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apiVersion: postgresql.cnpg.io/v1
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kind: Cluster
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metadata:
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name: pg-nextcloud
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namespace: nextcloud
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spec:
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imageName: ghcr.io/cloudnative-pg/postgresql:16
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instances: 1
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resources:
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requests:
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memory: "256Mi"
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cpu: "25m"
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limits:
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memory: "1Gi"
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cpu: "250m"
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storage:
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size: 20Gi
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storageClass: local-path
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bootstrap:
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recovery:
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source: home-backup
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externalClusters:
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- name: home-backup
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barmanObjectStore:
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destinationPath: s3://cnpg-backups/pg-nextcloud
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endpointURL: http://vps-minio.minio.svc.cluster.local:9000
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s3Credentials:
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accessKeyId:
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name: vps-minio-secret
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key: accesskey
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secretAccessKey:
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name: vps-minio-secret
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key: secretkey
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replica:
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enabled: true
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source: home-backup
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monitoring:
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enablePodMonitor: false
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@@ -0,0 +1,101 @@
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---
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# Restores the latest restic snapshot from home's nextcloud-pvc-sync
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# CronJob (apps/nextcloud/manifests/pvc-sync-cronjob.yaml, which backs up
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# to VPS MinIO's nextcloud-files/restic-repo daily at 02:00) into this
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# standby's own Nextcloud PVC. Runs daily at 04:00 - enough margin after
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# home's job to be sure that day's snapshot has landed.
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#
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# `restic restore latest --target /` restores into /data/... because
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# home's backup stored an absolute /data path (`restic backup /data ...`)
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# - mounting the destination PVC at /data here mirrors that exactly.
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#
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# nextcloud-restic-password must be the SAME password used to init the
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# repo at home (it's the decryption key for the whole restic repository,
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# not something that can differ per-consumer) - copied here manually
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# (kubectl, not git):
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# kubectl -n nextcloud create secret generic nextcloud-restic-password \
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# --from-literal=password=<home's nextcloud-restic-password>
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#
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# Nextcloud itself isn't running (replicas: 0, see values.yaml) so there's
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# no live-write conflict risk overwriting the PVC on every run.
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apiVersion: batch/v1
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kind: CronJob
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metadata:
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name: nextcloud-pvc-restore
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namespace: nextcloud
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spec:
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schedule: "0 4 * * *"
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concurrencyPolicy: Forbid
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successfulJobsHistoryLimit: 3
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failedJobsHistoryLimit: 3
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jobTemplate:
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spec:
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backoffLimit: 2
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template:
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spec:
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restartPolicy: Never
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securityContext:
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runAsNonRoot: true
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runAsUser: 65534
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fsGroup: 33 # matches the real nextcloud Deployment's fsGroup, same reasoning as home's pvc-sync-cronjob
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seccompProfile:
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type: RuntimeDefault
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containers:
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- name: restic-restore
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image: restic/restic:0.16.4
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securityContext:
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allowPrivilegeEscalation: false
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capabilities:
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drop: ["ALL"]
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command:
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- /bin/sh
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- -c
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- |
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set -eu
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export RESTIC_REPOSITORY="s3:http://vps-minio.minio.svc.cluster.local:9000/nextcloud-files/restic-repo"
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export RESTIC_PASSWORD_FILE=/restic-secret/password
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export AWS_ACCESS_KEY_ID="${MINIO_ACCESS_KEY}"
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export AWS_SECRET_ACCESS_KEY="${MINIO_SECRET_KEY}"
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export RESTIC_CACHE_DIR=/tmp/restic-cache
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if ! restic snapshots >/dev/null 2>&1; then
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echo "No repo/snapshots reachable yet - nothing to restore."
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exit 0
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fi
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echo "==> Restoring latest snapshot into /data..."
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restic restore latest --tag nextcloud --host nextcloud-k8s --target /
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echo "==> Done."
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env:
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- name: MINIO_ACCESS_KEY
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valueFrom:
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secretKeyRef:
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name: vps-minio-secret
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key: accesskey
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- name: MINIO_SECRET_KEY
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valueFrom:
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secretKeyRef:
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name: vps-minio-secret
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key: secretkey
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volumeMounts:
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- name: nextcloud-data
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mountPath: /data
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- name: restic-secret
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mountPath: /restic-secret
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readOnly: true
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volumes:
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- name: nextcloud-data
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persistentVolumeClaim:
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# Chart-generated PVC name, follows the Helm release name
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# (Application metadata.name: vps-nextcloud) - same
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# release-name-based naming gotcha hit with vault-0/
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# vps-vault-0 and gitea-http/vps-gitea-http. Verify against
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# `kubectl -n nextcloud get pvc` after first deploy.
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claimName: vps-nextcloud-nextcloud
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- name: restic-secret
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secret:
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secretName: nextcloud-restic-password
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items:
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- key: password
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path: password
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@@ -0,0 +1,94 @@
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# Nextcloud warm standby on the VPS - Phase 2. Same discipline as the
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# other vps-standby apps: CNPG replica cluster (manifests/cnpg-cluster.yaml)
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# keeps the DB warm, manifests/pvc-restore-cronjob.yaml keeps file content
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# warm, but the app itself stays at replicaCount: 0 until a deliberate
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# manual promotion.
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#
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# No Redis here - the home instance uses the redis-operator
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# (infrastructure/vps-standby has no redis-operator deployed, out of
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# scope for a standby that isn't actually serving traffic). Nextcloud
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# runs fine without Redis (falls back to DB-based locking, just slower) -
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# acceptable for an emergency-promotion scenario; add a real Redis at
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# promotion time if desired.
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replicaCount: 0
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nextcloud:
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host: nextcloud.kube.huskypup.net
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username: ""
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password: ""
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phpConfigs:
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upload.ini: |
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upload_tmp_dir = /var/www/tmp
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sys_temp_dir = /var/www/tmp
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extraEnv:
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- name: TMPDIR
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value: /var/www/tmp
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- name: PHP_MEMORY_LIMIT
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value: "2G"
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- name: PHP_UPLOAD_LIMIT
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value: "10G"
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configs:
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proxy.config.php: |-
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<?php
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$CONFIG = array (
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'trusted_proxies' => array(
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0 => '10.0.0.0/8',
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1 => '172.16.0.0/12',
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),
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'overwriteprotocol' => 'https',
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'overwrite.cli.url' => 'https://nextcloud.kube.huskypup.net',
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'allow_local_remote_servers' => true,
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);
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temp.config.php: |-
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<?php
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$CONFIG = array (
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'tempdirectory' => '/var/www/tmp',
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);
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existingSecret:
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enabled: true
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secretName: nextcloud-admin-secret
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usernameKey: username
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passwordKey: password
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ingress:
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enabled: false
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externalDatabase:
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enabled: true
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type: postgresql
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host: pg-nextcloud-rw
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port: 5432
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user: nextcloud
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database: nextcloud
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existingSecret:
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enabled: true
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secretName: pg-nextcloud-app
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passwordKey: password
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usernameKey: username
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persistence:
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enabled: true
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storageClass: local-path
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accessMode: ReadWriteOnce
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size: 30Gi
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resources:
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requests:
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cpu: 50m
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memory: 256Mi
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limits:
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cpu: 500m
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memory: 1Gi
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redis:
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enabled: false
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externalRedis:
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enabled: false
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metrics:
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enabled: false
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