Ronni Baslund
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Adds the production cluster foundation (authored + applied live on node1): - cert-manager via the k3s HelmChart controller + letsencrypt staging/prod ClusterIssuers (HTTP-01 / Traefik). - Longhorn config for single-node (values: replica=1, default StorageClass, Retain) + backup-to-Hetzner-Object-Storage credential template. - In-cluster data tier (dezky-data): Postgres 16 (with Authentik+OCIS DB init), MongoDB 7, Redis 7 as StatefulSets on Longhorn, + secret template. - bootstrap.sh: install open-iscsi/nfs-common + enable iscsid (Longhorn prereq). - RUNBOOK.md: full reproducible node1 build order. Real secrets are generated on-box and kept in Bitwarden — never in git.
50 lines
2.2 KiB
Markdown
50 lines
2.2 KiB
Markdown
# fleet/data — in-cluster data tier
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PostgreSQL 16 (Authentik + OCIS), MongoDB 7 (portal/platform-api) and Redis 7
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(cache/sessions) as single-node StatefulSets on **Longhorn** volumes
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(`storageClassName: longhorn` — see `../longhorn/`), in the `dezky-data`
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namespace. Mirrors the dev docker-compose stack. Self-hosted on the box — no
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external/managed DBs (EU-sovereign).
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> Prereq: Longhorn must be installed and its `longhorn` StorageClass present
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> before applying these (the PVCs request it). See `../longhorn/README.md`.
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Stable in-cluster DNS:
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- `postgres.dezky-data.svc.cluster.local:5432`
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- `mongo.dezky-data.svc.cluster.local:27017`
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- `redis.dezky-data.svc.cluster.local:6379`
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## Apply
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```bash
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# 1) Secrets first (out-of-band — NOT in git). Generate values with openssl.
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cp secrets.example.yaml /tmp/data-secrets.yaml
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$EDITOR /tmp/data-secrets.yaml # fill every REPLACE_* (openssl rand -hex 24)
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kubectl create namespace dezky-data --dry-run=client -o yaml | kubectl apply -f -
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kubectl apply -f /tmp/data-secrets.yaml && rm /tmp/data-secrets.yaml
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# 2) The data tier
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kubectl apply -k .
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# 3) Watch them come up
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kubectl -n dezky-data rollout status statefulset/postgres
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kubectl -n dezky-data rollout status statefulset/mongo
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kubectl -n dezky-data rollout status statefulset/redis
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kubectl -n dezky-data get pods,pvc
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```
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## Notes
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- **Postgres init runs once** (empty data dir): `postgres-init` ConfigMap
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creates the `authentik` + `ocis` databases/roles using
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`AUTHENTIK_DB_PASSWORD` / `OCIS_DB_PASSWORD` from the secret. If you change
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those passwords later, alter the roles in SQL — re-init won't re-run on an
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existing volume.
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- Store all generated passwords in **Bitwarden**. `AUTHENTIK_DB_PASSWORD` /
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`OCIS_DB_PASSWORD` must match what you later give Authentik and OCIS.
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- **Backups:** Longhorn snapshots + backs these volumes up to Hetzner Object
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Storage (S3) — see `../longhorn/README.md`. Block snapshots of a live DB are
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crash-consistent at best, so also run `pg_dump`/`mongodump` CronJobs (added
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next) into a Longhorn PVC; restore from those logical dumps, not the raw
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data dirs.
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- Single replica each — fine for one node. HA/replicas are a later concern.
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