try chatgpt provided chart for redis/keyDB

redis/Chart.yaml

@@ -1,35 +1,17 @@
+# Chart: keydb-custom
+# Helm chart tailored for KeyDB (EqAlpha) on 2 Raspberry Pi 5 nodes
+# - Mode: master (statefulset index 0) + replica (index 1)
+# - Replica runs as replicaof master at startup
+# - server-threads = 4
+# - Config mounted via ConfigMap
+# - Liveness / readiness probes included
+# - Persistence via PersistentVolumeClaim (storageClass configurable)
+# -----------------------------------------------------------------------------
+# Chart.yaml
+# -----------------------------------------------------------------------------
 apiVersion: v2
-name: redis
-description: A Helm chart for Kubernetes
-
-dependencies:
-- name: tool
-  version: 0.1.0
-  repository: https://gitea.arcodange.duckdns.org/api/packages/arcodange-org/helm
-- name: keydb
-  version: 0.5.22
-  repository: https://charts.bitnami.com/bitnami
-# - name: redis
-#   version: 24.0.0
-#   repository: https://charts.bitnami.com/bitnami
-
-# A chart can be either an 'application' or a 'library' chart.
-#
-# Application charts are a collection of templates that can be packaged into versioned archives
-# to be deployed.
-#
-# Library charts provide useful utilities or functions for the chart developer. They're included as
-# a dependency of application charts to inject those utilities and functions into the rendering
-# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+name: keydb-custom # https://chatgpt.com/c/69315a7d-cb88-832c-bc18-3be2b519356d
+description: "Custom KeyDB Helm chart for 2-node Master+Replica on Raspberry Pi 5"
 type: application
-
-# This is the chart version. This version number should be incremented each time you make changes
-# to the chart and its templates, including the app version.
-# Versions are expected to follow Semantic Versioning (https://semver.org/)
 version: 0.1.0
-
-# This is the version number of the application being deployed. This version number should be
-# incremented each time you make changes to the application. Versions are not expected to
-# follow Semantic Versioning. They should reflect the version the application is using.
-# It is recommended to use it with quotes.
-# appVersion: "1.16.0"
+appVersion: "latest"

redis/templates/NOTES.txt

@@ -0,0 +1,12 @@
+# -----------------------------------------------------------------------------
+# templates/NOTES.txt
+# -----------------------------------------------------------------------------
+{{""}}
+1. Get the application URL by running these commands:
+  export POD0=$(kubectl get pods -l app={{ include "keydb-custom.name" . }} -o jsonpath="{.items[0].metadata.name}")
+  kubectl logs $POD0
+
+2. To connect via keydb-cli from a pod:
+  kubectl run -it --rm --image=eqalpha/keydb --restart=Never keydb-client -- /bin/sh
+  # inside the pod:
+  keydb-cli -h {{ include "keydb-custom.fullname" . }}-0.{{ include "keydb-custom.fullname" . }}-headless -a "{{ .Values.auth.password }}" PING

redis/templates/_helpers.tpl

@@ -0,0 +1,11 @@
+# -----------------------------------------------------------------------------
+# templates/_helpers.tpl
+# -----------------------------------------------------------------------------
+{{""}}
+{{- define "keydb-custom.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 -}}
+{{- end -}}
+
+{{- define "keydb-custom.fullname" -}}
+{{- printf "%s" (include "keydb-custom.name" .) -}}
+{{- end -}}

redis/templates/configmap.yaml

@@ -0,0 +1,24 @@
+# -----------------------------------------------------------------------------
+# templates/configmap.yaml
+# -----------------------------------------------------------------------------
+{{""}}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: '{{ include "keydb-custom.fullname" . }}-conf'
+  labels:
+    app: {{ include "keydb-custom.name" . }}
+data:
+  keydb.conf: |
+    # Minimal keydb.conf generated from values
+    server-threads {{ .Values.keydb.serverThreads }}
+    maxmemory {{ .Values.keydb.maxmemory }}
+    maxmemory-policy {{ .Values.keydb.maxmemoryPolicy }}
+    appendonly {{ .Values.keydb.appendonly }}
+    protected-mode no
+    bind 0.0.0.0
+    port {{ .Values.service.port }}
+    active-replica yes
+    scratch-file-path /tmp/
+    jemalloc-bg-thread no # doesn't work with rpi5 16ko page size instead of classic 4ko size
+    # requirepass is handled via env (not in file)

redis/templates/headless-svc.yaml

@@ -0,0 +1,17 @@
+# -----------------------------------------------------------------------------
+# templates/headless-svc.yaml
+# -----------------------------------------------------------------------------
+{{""}}
+apiVersion: v1
+kind: Service
+metadata:
+  name: '{{ include "keydb-custom.fullname" . }}-headless'
+  labels:
+    app: {{ include "keydb-custom.name" . }}
+spec:
+  clusterIP: None
+  selector:
+    app: {{ include "keydb-custom.name" . }}
+  ports:
+    - port: {{ .Values.service.port }}
+      name: keydb

redis/templates/helm-chart-config.yaml

@@ -1,3 +0,0 @@
-{{- if eq .Values.tool.kind "HelmChart" -}}
-{{- include "tool.helm-chart-config.tpl" . -}}
-{{- end -}}

redis/templates/helm-chart.yaml

@@ -1,3 +0,0 @@
-{{- if eq .Values.tool.kind "HelmChart" -}}
-{{- include "tool.helm-chart.tpl" . -}}
-{{- end -}}

redis/templates/secret-auth.yaml

@@ -0,0 +1,11 @@
+# -----------------------------------------------------------------------------
+# templates/secret-auth.yaml
+# -----------------------------------------------------------------------------
+{{""}}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: '{{ include "keydb-custom.fullname" . }}-auth'
+type: Opaque
+stringData:
+  password: "{{ .Values.auth.password }}"

redis/templates/statefulset.yaml

@@ -0,0 +1,135 @@
+# -----------------------------------------------------------------------------
+# templates/statefulset.yaml
+# -----------------------------------------------------------------------------
+{{""}}
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "keydb-custom.fullname" . }}
+  labels:
+    app: {{ include "keydb-custom.name" . }}
+spec:
+  serviceName: {{ include "keydb-custom.fullname" . }}-headless
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ include "keydb-custom.name" . }}
+  template:
+    metadata:
+      labels:
+        app: {{ include "keydb-custom.name" . }}
+    spec:
+      {{- if .Values.nodeAffinity }}
+      affinity:
+        nodeAffinity: {{ toYaml .Values.nodeAffinity | nindent 8 }}
+      {{- end }}
+      {{- if .Values.podAntiAffinity.enabled }}
+      affinity:
+        podAntiAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            - labelSelector:
+                matchExpressions:
+                  - key: "app"
+                    operator: In
+                    values:
+                      - {{ include "keydb-custom.name" . }}
+              topologyKey: "kubernetes.io/hostname"
+      {{- end }}
+      containers:
+        - name: keydb
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: keydb
+              containerPort: {{ .Values.service.port }}
+          env:
+            - name: KEYDB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ include "keydb-custom.fullname" . }}-auth
+                  key: password
+            - name: KEYDB_CONF_FILE
+              value: "/etc/keydb/keydb.conf"
+          volumeMounts:
+            - name: keydb-conf
+              mountPath: /etc/keydb
+            - name: data
+              mountPath: /bitnami/keydb
+          resources:
+            {{ toYaml .Values.resources | nindent 12 }}
+          command:
+            - sh
+            - -c
+            - |
+              # Startup logic:
+              # - pod index 0 starts as master
+              # - pod index >0 will start and then configure REPLICAOF to master
+              POD_NAME=$(hostname)
+              # derive ordinal from pods named <release>-<ordinal>
+              ORDINAL=${POD_NAME##*-}
+              # start keydb-server in background to accept CONFIG/CLI commands
+              keydb-server /etc/keydb/keydb.conf &
+              sleep 1
+              if [ "${ORDINAL}" != "0" ]; then
+                # wait for master to be ready
+                MASTER_HOST={{ include "keydb-custom.fullname" . }}-0.{{ include "keydb-custom.fullname" . }}-headless
+                until nc -z ${MASTER_HOST} {{ .Values.service.port }}; do sleep 1; done
+                # configure replication (use CLI to set replicaof)
+                if [ -n "$KEYDB_PASSWORD" ]; then
+                  keydb-cli -a "$KEYDB_PASSWORD" REPLICAOF ${MASTER_HOST} {{ .Values.service.port }}
+                else
+                  keydb-cli REPLICAOF ${MASTER_HOST} {{ .Values.service.port }}
+                fi
+                echo "Configured replicaof ${MASTER_HOST}:{{ .Values.service.port }}"
+                # tail logs (block) to keep container running
+                wait
+              else
+                # master: block on server process
+                wait
+              fi
+          readinessProbe:
+            {{- if .Values.readinessProbe.enabled }}
+            exec:
+              command:
+                - sh
+                - -c
+                - |
+                  # quick PING check
+                  if [ -n "$KEYDB_PASSWORD" ]; then
+                    keydb-cli -a "$KEYDB_PASSWORD" PING > /dev/null 2>&1 && exit 0 || exit 1
+                  else
+                    keydb-cli PING > /dev/null 2>&1 && exit 0 || exit 1
+                  fi
+            initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.readinessProbe.periodSeconds }}
+            timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds }}
+            {{- end }}
+          livenessProbe:
+            {{- if .Values.livenessProbe.enabled }}
+            exec:
+              command:
+                - sh
+                - -c
+                - |
+                  if [ -n "$KEYDB_PASSWORD" ]; then
+                    keydb-cli -a "$KEYDB_PASSWORD" PING > /dev/null 2>&1 && exit 0 || exit 1
+                  else
+                    keydb-cli PING > /dev/null 2>&1 && exit 0 || exit 1
+                  fi
+            initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
+            timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
+            {{- end }}
+      volumes:
+        - name: keydb-conf
+          configMap:
+            name: {{ include "keydb-custom.fullname" . }}-conf
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+      spec:
+        accessModes: {{ toYaml .Values.persistence.accessModes | nindent 8 }}
+        resources:
+          requests:
+            storage: {{ .Values.persistence.size }}
+        storageClassName: "{{ .Values.persistence.storageClass }}"

redis/values.redis.yaml

@@ -1,18 +0,0 @@
-redis: &redis_config
-  architecture: replication
-  global:
-    defaultStorageClass: local-path
-  sentinel:
-    enabled: true
-  master:
-    resourcesPreset: &resources small
-  replica:
-    resourcesPreset: *resources
-
-tool:
-  # kind: 'SubChart' or 'HelmChart', if subchart then uncomment Chart.yaml dependency, else comment and use tool library with helm chart template
-  kind: 'SubChart'
-  repo: https://charts.bitnami.com/bitnami
-  chart: redis
-  version: 24.0.0
-  values: *redis_config

redis/values.yaml

@@ -1,26 +1,59 @@
-keydb: &keydb_config
-  image:
-    registry: docker.io
-    repository: eqalpha/keydb  # Remplace l'image Redis par KeyDB
+# -----------------------------------------------------------------------------
+# values.yaml
+# -----------------------------------------------------------------------------
+# Default values - adjust to your environment
+replicaCount: 2
+
+image:
+  repository: eqalpha/keydb
   tag: latest
   pullPolicy: IfNotPresent
-  global:
-    defaultStorageClass: local-path
-    security:
-      allowInsecureImages: true
-  architecture: replication
-  auth:
-    password: redisarcodange
-  master:
-    resourcesPreset: &resources small
-  replica:
-    activeReplica: true
-    resourcesPreset: *resources
 
-tool:
-  # kind: 'SubChart' or 'HelmChart', if subchart then uncomment Chart.yaml dependency, else comment and use tool library with helm chart template
-  kind: 'SubChart'
-  repo: https://charts.bitnami.com/bitnami
-  chart: keydb
-  version: 0.5.22
-  values: *keydb_config
+service:
+  port: 6379
+  headless: true
+
+auth:
+  enabled: true
+  password: "redisarcodange"
+
+keydb:
+  serverThreads: 4
+  maxmemory: "70%"
+  maxmemoryPolicy: "allkeys-lru"
+  appendonly: "no"
+
+persistence:
+  enabled: true
+  accessModes:
+  - ReadWriteOnce 
+  size: 1Gi
+  storageClass: "local-path" # set to your storageClass: longhorn, local-path, etc.
+
+resources:
+  requests:
+    cpu: "300m"
+    memory: "512Mi"
+  limits:
+    cpu: "1200m"
+    memory: "1Gi"
+
+nodeAffinity: {}
+
+podAntiAffinity:
+  enabled: true
+
+securityContext:
+  enabled: false
+
+livenessProbe:
+  enabled: true
+  initialDelaySeconds: 30
+  periodSeconds: 10
+  timeoutSeconds: 5
+
+readinessProbe:
+  enabled: true
+  initialDelaySeconds: 5
+  periodSeconds: 5
+  timeoutSeconds: 2