immich: remove the PostgreSQL 14 cluster

docs/roadmap.md

@@ -26,11 +26,12 @@ docs/longhorn-second-ssd.md:
 - [x] Read `~/iosample.log` on opti1: the worst stretch was not the
   backups but 8.5 hours of Longhorn merging immich-claim's deleted
   snapshots (2026-10-24 14:30-23:15), see docs/upgrade-k8s-1.33.md
-- [ ] From 2026-10-27, if immich runs without problems: delete
+- [x] From 2026-10-27, if immich runs without problems: delete
-  `immich/postgresql-cluster.yaml` (the PG14 cluster still runs, 20 GiB),
+  `immich/postgresql-cluster.yaml` (the PG14 cluster, 20 GiB), the
-  the Longhorn snapshots and backups `immich-pg14-pre-vchord` and
+  Longhorn snapshots and backups `immich-pg14-pre-vchord` and
-  `immich-pg17-pre-v3`, and both dumps in `~` on opti1. PostgreSQL 14
+  `immich-pg17-pre-v3`, and both dumps in `~` on opti1. Done 2026-10-28
-  reaches end of life on 2026-11-12
+  (PR #61), with the PG14 volume's other Longhorn backups.
+  `immich-pg17-pre-v3` only ever was a snapshot
 - [ ] The upgrade's dqlite and backend copies in `/root/` on opti1
   (`backend-*.tar`, `dqlite-pre-*`)
 - [ ] Log in to immich as a jeugdlid (quota 0)
@@ -508,7 +509,7 @@ critical / high:
 
 | Image | Crit | High | What to do |
 |---|---|---|---|
-| tensorchord/cloudnative-pgvecto.rs:14-v0.2.1 | 38 | 342 | immich's old PG14 cluster; goes with the cleanup from 2026-10-27 |
+| tensorchord/cloudnative-pgvecto.rs:14-v0.2.1 | 38 | 342 | immich's old PG14 cluster; deleted 2026-10-28 |
 | cloudnative-pg/postgresql:17.4 | 27 | 260 | authentik's database, a Debian 11 image. Renovate now offers 17.7; a `17.x-standard-trixie` image is more current |
 | tensorchord/cloudnative-vectorchord:17.11-1.1.1 | 17 | 136 | immich's database; look for a newer tag |
 | longhornio/longhorn-instance-manager:v1.7.3 | 11 | 159 | still serves 16 volumes, see below |

docs/upgrade-k8s-1.33.md

@@ -169,8 +169,9 @@ pgvecto.rs. Done 2026-10-24, about an hour of immich downtime:
   v2.4.1 refused to start (it only accepts VectorChord <0.6); v2.5.0 and up
   accept <2, so immich went to v2.7.5, the last 2.x. It rebuilt both
   indexes as `vchordrq` in about 1.5 minutes
-- [ ] After a few days without problems: delete the old cluster
+- [x] After a few days without problems: delete the old cluster
   (`immich/postgresql-cluster.yaml`), the snapshot/backup and the dump.
+  Done 2026-10-28 (PR #61), with the PG14 volume's Longhorn backups.
   Rolling back means reverting the old volume to the snapshot, since its
   embeddings are now `real[]` without pgvecto.rs
 - [x] immich 3.x: v2.7.5 → v3.3.5 with chart 0.10.3 → 0.13.4 on
@@ -189,8 +190,8 @@ pgvecto.rs. Done 2026-10-24, about an hour of immich downtime:
   (v3.3.0), for faster ML with less memory; numerically the same models,
   so no jobs to rerun. The model cache is an emptyDir, so the one-off
   preparation repeats on every restart
-- [ ] After a few days without problems: delete the `immich-pg17-pre-v3`
+- [x] After a few days without problems: delete the `immich-pg17-pre-v3`
-  snapshot and dump together with the PG14 leftovers above
+  snapshot and dump together with the PG14 leftovers above (2026-10-28)
 
 ## k8s-dqlite write stalls (found 2026-10-22)
 

immich/postgresql-cluster-17.yaml

@@ -29,7 +29,10 @@ spec:
 
   # Filled once from the PostgreSQL 14 cluster (immich-postgres) after its
   # embedding columns were turned into real[] and pgvecto.rs was dropped,
-  # see docs/upgrade-k8s-1.33.md.
+  # see docs/upgrade-k8s-1.33.md. That cluster is gone since 2026-10-28, so
+  # creating this Cluster again fails here, on purpose: an empty database
+  # would start immich with an empty library. Restore from Garage instead
+  # (bootstrap.recovery, see postgresql-backup.yaml).
   bootstrap:
     initdb:
       database: immich

immich/postgresql-cluster.yaml

@@ -1,28 +0,0 @@
-apiVersion: postgresql.cnpg.io/v1
-kind: Cluster
-metadata:
-  name: immich-postgres
-  namespace: immich
-spec:
-  instances: 1
-
-  # Use TensorChord's CNPG-compatible image with pgvecto.rs v0.2.1
-  imageName: ghcr.io/tensorchord/cloudnative-pgvecto.rs:14-v0.2.1
-
-  postgresql:
-    shared_preload_libraries:
-      - "vectors.so"
-
-  bootstrap:
-    initdb:
-      database: immich
-      owner: immich
-      postInitSQL:
-        - CREATE EXTENSION IF NOT EXISTS vectors;
-        - CREATE EXTENSION IF NOT EXISTS cube;
-        - CREATE EXTENSION IF NOT EXISTS earthdistance CASCADE;
-        - ALTER USER immich WITH SUPERUSER;
-
-  storage:
-    size: 20Gi
-    storageClass: longhorn

renovate.json

@@ -82,8 +82,7 @@
       "description": "A PostgreSQL major upgrade needs pg_upgrade or a dump, not a tag bump",
       "matchDepNames": [
         "ghcr.io/cloudnative-pg/postgresql",
-        "ghcr.io/tensorchord/cloudnative-vectorchord",
+        "ghcr.io/tensorchord/cloudnative-vectorchord"
-        "ghcr.io/tensorchord/cloudnative-pgvecto.rs"
       ],
       "matchUpdateTypes": [
         "major"