Add Poimen Memory to ArgoCD wave 2 deployment (namespace: poimen)

k8s/infra/databases/kustomization.yaml

@@ -1,8 +1,10 @@
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 # Dedicated per-app CNPG clusters. NO top-level `namespace:` — each Cluster
-# carries its own ns (iam / temporal); a transformer would wrongly collapse them.
+# carries its own ns (iam / temporal / poimen); a transformer would wrongly collapse them.
+# poimen ns created by poimen-root app, memory-db deployed into it.
 resources:
   - namespaces.yaml
   - authentik-db.yaml
   - temporal-db.yaml
+  - memory-db.yaml

k8s/infra/databases/memory-db.yaml

@@ -0,0 +1,41 @@
+# Dedicated CNPG Postgres for Poimen Memory (GitOps, wave 2 — before poimen w3).
+# Includes pgvector extension for semantic search (768-dim embeddings).
+# CNPG generates secret `memory-db-app` + service `memory-db-rw` in ns poimen;
+# poimen reads them locally (no cross-ns secret copy).
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: memory-db
+  namespace: poimen
+  annotations:
+    argocd.argoproj.io/sync-options: SkipDryRunOnMissingResource=true
+spec:
+  instances: 3
+  imageName: ghcr.io/cloudnative-pg/postgresql:16.2
+  bootstrap:
+    initdb:
+      database: memory
+      owner: app
+      encoding: UTF8
+      localeCollate: C
+      localeCType: C
+      postInitApplicationSQL:
+        - "CREATE EXTENSION vector;"
+  enableSuperuserAccess: false
+  resources:
+    requests: { memory: "512Mi", cpu: "250m" }
+    limits: { memory: "2Gi", cpu: "1" }
+  storage:
+    size: 10Gi
+    storageClass: longhorn-cnpg
+  monitoring:
+    enablePodMonitor: true
+  affinity:
+    # preferred + tolerations: HA across nodes without deadlocking a partly-
+    # schedulable 3-CP (same as temporal/authentik-db).
+    podAntiAffinityType: preferred
+    topologyKey: kubernetes.io/hostname
+    tolerations:
+      - key: node-role.kubernetes.io/control-plane
+        operator: Exists
+        effect: NoSchedule

k8s/infra/databases/namespaces.yaml

@@ -1,6 +1,7 @@
 # DB clusters are wave 2 — their namespaces must exist first (their apps that
 # would CreateNamespace run later, w3/w8). Declared here so the databases App
 # creates them. authentik/vault/temporal CreateNamespace=true then no-ops.
+# poimen namespace created by poimen-root app (wave 7).
 apiVersion: v1
 kind: Namespace
 metadata: