operator-chart 0.2.7: replace nats subchart with natsURL string

0.2.6 was architecturally wrong — gating on nats.enabled would
have created one NATS pod per module install. NATS lives once per
cluster (deployed separately, e.g. via tinysystems-crd); every
module's chart install gets a natsURL string pointing at the
shared endpoint.

Sets TINY_NATS_URL on the controller-manager pod when natsURL is
non-empty. Empty = SDK v0.10.23+ falls back to gRPC transport
(no behavior change vs older charts).

Author: tpoxa

charts/tinysystems-operator/Chart.lock

@@ -5,8 +5,5 @@ dependencies:
 - name: postgresql
   repository: https://charts.bitnami.com/bitnami
   version: 15.5.20
-- name: nats
-  repository: https://nats-io.github.io/k8s/helm/charts/
-  version: 2.14.0
-digest: sha256:d074913592f5bc254374360e3361b6c16d87e7e57588f2d1cbe9afc1dc503883
-generated: "2026-05-29T18:26:30.084538+01:00"
+digest: sha256:e2716e3030e7c7479cce7e86e619f8e8e36bf38e9503b1a3653d80e79dcb7ea5
+generated: "2026-05-29T21:00:31.944215+01:00"

charts/tinysystems-operator/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: tinysystems-operator
 description: TinySystems Operator Helm chart for Kubernetes
 type: application
-version: 0.2.6
+version: 0.2.7
 appVersion: "0.1.3"
 
 # Curated bundles: third-party releases module authors can request
@@ -31,13 +31,4 @@ dependencies:
     repository: "https://charts.bitnami.com/bitnami"
     condition: pgvector.enabled
     alias: pgvector
-  # NATS JetStream — infrastructure bundle for the SDK's eventual
-  # JetStream-backed primitives (State KV, durable edge transport).
-  # Default off; flip on with --set nats.enabled=true. When the SDK
-  # version that uses NATS lands we'll flip this default to true and
-  # bump operator-chart's major.
-  - name: nats
-    version: "2.14.0"
-    repository: "https://nats-io.github.io/k8s/helm/charts/"
-    condition: nats.enabled
 

charts/tinysystems-operator/templates/deployment.yaml

@@ -63,12 +63,12 @@ spec:
             value: {{ quote .Values.kubernetesClusterDomain }}
           - name: SELF_SERVICE_HOST
             value: {{ include "tinysystems-operator.fullname" . }}-manager-service:8483
-          {{- if .Values.nats.enabled }}
-          # NATS bundle is on — point the SDK at the in-cluster JetStream
-          # broker. Service name is {release}-nats (from the nats subchart's
-          # fullname helper), reached via in-namespace DNS.
+          {{- if .Values.natsURL }}
+          # Cross-module wire goes through this NATS endpoint. SDK
+          # ≥ v0.10.23 reads TINY_NATS_URL and uses NATS subjects
+          # instead of gRPC AddressPool. Empty = legacy gRPC.
           - name: TINY_NATS_URL
-            value: "nats://{{ .Release.Name }}-nats:4222"
+            value: {{ .Values.natsURL | quote }}
           {{- end }}
         image: {{ .Values.controllerManager.manager.image.repository }}:{{ .Values.controllerManager.manager.image.tag | default .Chart.AppVersion }}
         imagePullPolicy: {{ .Values.controllerManager.manager.imagePullPolicy }}

charts/tinysystems-operator/values.yaml

@@ -135,47 +135,15 @@ pgvector:
     persistence:
       size: 8Gi
 
-# NATS — JetStream broker for the SDK's durable primitives. Off by
-# default; flip on with --set nats.enabled=true. When the SDK gains
-# JetStream-backed State / edges this default will flip to true.
+# NATS endpoint — when set, the SDK uses NATS for cross-module
+# messaging (TINY_NATS_URL plumbed to the controller-manager pod).
+# Empty = legacy gRPC AddressPool transport.
 #
-# Default config is a single-replica, file-storage JetStream node
-# sized for a typical small-to-medium cluster. Bump to 3-node RAFT
-# by setting --set nats.config.cluster.enabled=true,nats.statefulSet.merge.spec.replicas=3.
-nats:
-  enabled: false
-  config:
-    cluster:
-      enabled: false
-    jetstream:
-      enabled: true
-      fileStore:
-        enabled: true
-        pvc:
-          enabled: true
-          size: 20Gi
-      memoryStore:
-        enabled: false
-  statefulSet:
-    merge:
-      spec:
-        replicas: 1
-  container:
-    merge:
-      resources:
-        requests:
-          cpu: 100m
-          memory: 256Mi
-        limits:
-          cpu: 500m
-          memory: 512Mi
-  service:
-    merge:
-      spec:
-        type: ClusterIP
-  reloader:
-    enabled: false
-  natsBox:
-    enabled: false
-  promExporter:
-    enabled: false
+# Each cluster runs ONE NATS instance (deployed separately, e.g. via
+# tinysystems-crd or an admin's choice). Every module's chart install
+# points its natsURL at the same endpoint. Subjects route messages —
+# no per-module broker.
+#
+# Example:
+#   --set natsURL=nats://nats.tinysystems-system.svc.cluster.local:4222
+natsURL: ""