KeyDB multimaster PoC

.gitignore

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+.deploy

keydb/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

keydb/Chart.yaml

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+apiVersion: v2
+name: keydb
+description: A Helm chart for KeyDB multimaster setup
+type: application
+version: 0.1.0
+keywords:
+- keydb
+- redis
+- keyvalue
+- database
+- multimaster
+- HA
+- high-availability
+home: https://keydb.dev
+maintainers:
+- email: [email protected]
+  name: Antiarchitect
+  url: https://github.com/Antiarchitect
+sources:
+- https://github.com/Enapter/charts
+- https://github.com/JohnSully/KeyDB
+icon: https://keydb.dev/assets/ico/keydb_logo_bwtxtw.png
+appVersion: 5.3.0

keydb/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "keydb.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "keydb.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "keydb.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "keydb.labels" -}}
+helm.sh/chart: {{ include "keydb.chart" . }}
+{{ include "keydb.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "keydb.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "keydb.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "keydb.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "keydb.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

keydb/templates/sts.yaml

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+{{- $context := . }}
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ template "keydb.fullname" . }}
+  labels:
+{{ include "keydb.labels" . | indent 4 }}
+spec:
+  replicas: {{ .Values.nodes }}
+  serviceName: {{ template "keydb.fullname" . }}
+  selector:
+    matchLabels:
+{{ include "keydb.selectorLabels" . | indent 6 }}
+  template:
+    metadata:
+      labels:
+{{ include "keydb.labels" . | indent 8 }}
+    spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - weight: 100
+            podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: app.kubernetes.io/name
+                  operator: In
+                  values:
+                  - {{ template "keydb.name" . }}
+                - key: app.kubernetes.io/instance
+                  operator: In
+                  values:
+                  - {{ .Release.Name }}
+              topologyKey: "kubernetes.io/hostname"
+      containers:
+      - name: keydb
+        image: {{ .Values.image }}
+        imagePullPolicy: {{ .Values.imagePullPolicy }}
+        volumeMounts:
+        - name: keydb-data
+          mountPath: /data
+        ports:
+        - name: keydb
+          containerPort: 6379
+          protocol: TCP
+        livenessProbe:
+          tcpSocket:
+            port: keydb
+        readinessProbe:
+          tcpSocket:
+            port: keydb
+        command:
+        - keydb-server
+        args:
+        - /etc/keydb/redis.conf
+        - --active-replica yes
+        - --bind 0.0.0.0
+        - --multi-master yes
+        - --port 6379
+        - --protected-mode no
+        - --server-threads {{ .Values.threads | int }}
+{{ range $node := until (.Values.nodes | int) }}
+        - --replicaof {{ template "keydb.fullname" $context }}-{{ $node }}.{{ template "keydb.fullname" $context }}.{{ $context.Release.Namespace }}.svc.cluster.local 6379
+{{ end }}
+{{ if .Values.password }}
+        - --masterauth {{ .Values.password }}
+        - --requirepass {{ .Values.password }}
+{{ end }}
+{{ if not .Values.persistentVolume.enabled }}
+      volumes:
+      - name: storage-volume
+        emptyDir: {}
+{{ end }}
+{{ if .Values.persistentVolume.enabled }}
+  volumeClaimTemplates:
+  - metadata:
+      name: keydb-data
+      annotations:
+{{ if .Values.persistentVolume.annotations }}
+{{ toYaml .Values.persistentVolume.annotations | indent 8 }}
+{{ end }}
+      labels:
+    spec:
+      accessModes:
+{{ toYaml .Values.persistentVolume.accessModes | indent 8 }}
+      resources:
+        requests:
+          storage: {{ .Values.persistentVolume.size }}
+{{ if .Values.persistentVolume.storageClass }}
+{{ if (eq "-" .Values.persistentVolume.storageClass) }}
+      storageClassName: ""
+{{ else }}
+      storageClassName: {{ .Values.persistentVolume.storageClass }}
+{{ end }}
+{{ end }}
+{{ end }}

keydb/templates/svc.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ template "keydb.fullname" . }}
+  labels:
+{{ include "keydb.labels" . | indent 4 }}
+spec:
+  type: ClusterIP
+  ports:
+  - name: server
+    port: {{ .Values.port | int }}
+    protocol: TCP
+    targetPort: keydb
+  selector:
+{{ include "keydb.selectorLabels" . | indent 4 }}

keydb/values.yaml

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+nameOverride: ""
+fullnameOverride: ""
+
+image: eqalpha/keydb:x86_64_v5.3.0
+imagePullPolicy: IfNotPresent
+
+nodes: 3
+
+password: ""
+
+port: 6379
+
+persistentVolume:
+  enabled: false
+  accessModes:
+  - ReadWriteOnce
+  size: 1Gi
+
+threads: 2