feat(falkordb): install FalkorDB

charts/falkordb/templates/NOTES.txt

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+FalkorDB has been deployed!
+
+Get the connection information:
+
+  Host: {{ include "falkordb.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local
+  Port: {{ .Values.service.port }}
+
+{{- if .Values.auth.enabled }}
+
+Get the password:
+
+  kubectl get secret {{ .Values.auth.existingSecret | default (printf "%s-password" (include "falkordb.fullname" .)) }} \
+    -n {{ .Release.Namespace }} \
+    -o jsonpath="{.data.{{ .Values.auth.existingSecretPasswordKey }}}" | base64 -d
+{{- end }}
+
+Test the connection:
+
+  redis-cli -h {{ include "falkordb.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local \
+    -p {{ .Values.service.port }} \
+    {{- if .Values.auth.enabled }}
+    -a <password> \
+    {{- end }}
+    PING
+
+Run a Cypher query:
+
+  redis-cli -h {{ include "falkordb.fullname" . }}.{{ .Release.Namespace }}.svc.cluster.local \
+    -p {{ .Values.service.port }} \
+    {{- if .Values.auth.enabled }}
+    -a <password> \
+    {{- end }}
+    GRAPH.QUERY mygraph "CREATE (:Person {name: 'Alice'})"

charts/falkordb/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "falkordb.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 "falkordb.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 "falkordb.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "falkordb.labels" -}}
+helm.sh/chart: {{ include "falkordb.chart" . }}
+{{ include "falkordb.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "falkordb.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "falkordb.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "falkordb.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "falkordb.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

charts/falkordb/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "falkordb.fullname" . }}
+  labels:
+    {{- include "falkordb.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: redis
+      protocol: TCP
+      name: redis
+    {{- if .Values.metrics.enabled }}
+    - port: 9121
+      targetPort: metrics
+      protocol: TCP
+      name: metrics
+    {{- end }}
+  selector:
+    {{- include "falkordb.selectorLabels" . | nindent 4 }}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "falkordb.fullname" . }}-headless
+  labels:
+    {{- include "falkordb.labels" . | nindent 4 }}
+spec:
+  type: ClusterIP
+  clusterIP: None
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: redis
+      protocol: TCP
+      name: redis
+  selector:
+    {{- include "falkordb.selectorLabels" . | nindent 4 }}

charts/falkordb/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "falkordb.serviceAccountName" . }}
+  labels:
+    {{- include "falkordb.labels" . | nindent 4 }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+automountServiceAccountToken: {{ .Values.serviceAccount.automount }}
+{{- end }}

charts/falkordb/templates/servicemonitor.yaml

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+{{- if and .Values.metrics.enabled .Values.metrics.serviceMonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: {{ include "falkordb.fullname" . }}
+  labels:
+    {{- include "falkordb.labels" . | nindent 4 }}
+    {{- with .Values.metrics.serviceMonitor.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "falkordb.selectorLabels" . | nindent 6 }}
+  endpoints:
+    - port: metrics
+      interval: {{ .Values.metrics.serviceMonitor.interval }}
+{{- end }}

charts/falkordb/templates/statefulset.yaml

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+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: {{ include "falkordb.fullname" . }}
+  labels:
+    {{- include "falkordb.labels" . | nindent 4 }}
+spec:
+  serviceName: {{ include "falkordb.fullname" . }}-headless
+  replicas: 1
+  selector:
+    matchLabels:
+      {{- include "falkordb.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "falkordb.labels" . | nindent 8 }}
+        {{- with .Values.podLabels }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "falkordb.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command:
+            - /bin/sh
+            - -c
+            - |
+              redis-server \
+                --loadmodule /var/lib/falkordb/bin/falkordb.so \
+                {{- if .Values.auth.enabled }}
+                --requirepass "$REDIS_PASSWORD"
+                {{- end }}
+          env:
+            {{- if .Values.auth.enabled }}
+            - name: REDIS_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.auth.existingSecret | default (printf "%s-password" (include "falkordb.fullname" .)) }}
+                  key: {{ .Values.auth.existingSecretPasswordKey }}
+            - name: REDISCLI_AUTH
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.auth.existingSecret | default (printf "%s-password" (include "falkordb.fullname" .)) }}
+                  key: {{ .Values.auth.existingSecretPasswordKey }}
+            {{- end }}
+          ports:
+            - name: redis
+              containerPort: 6379
+              protocol: TCP
+          livenessProbe:
+            {{- toYaml .Values.livenessProbe | nindent 12 }}
+          readinessProbe:
+            {{- toYaml .Values.readinessProbe | nindent 12 }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          volumeMounts:
+            - name: data
+              mountPath: /var/lib/falkordb/data
+        {{- if .Values.metrics.enabled }}
+        - name: metrics
+          image: "{{ .Values.metrics.image.repository }}:{{ .Values.metrics.image.tag }}"
+          imagePullPolicy: {{ .Values.metrics.image.pullPolicy }}
+          securityContext:
+            runAsUser: 1001
+            runAsGroup: 1001
+            runAsNonRoot: true
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            seccompProfile:
+              type: RuntimeDefault
+            capabilities:
+              drop:
+                - ALL
+          env:
+            {{- if .Values.auth.enabled }}
+            - name: REDIS_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.auth.existingSecret | default (printf "%s-password" (include "falkordb.fullname" .)) }}
+                  key: {{ .Values.auth.existingSecretPasswordKey }}
+            {{- end }}
+          args:
+            - "--redis.addr=redis://localhost:6379"
+            {{- if .Values.auth.enabled }}
+            - "--redis.password=$(REDIS_PASSWORD)"
+            {{- end }}
+          ports:
+            - name: metrics
+              containerPort: 9121
+              protocol: TCP
+          resources:
+            {{- toYaml .Values.metrics.resources | nindent 12 }}
+        {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+  {{- if .Values.persistence.enabled }}
+  volumeClaimTemplates:
+    - metadata:
+        name: data
+        labels:
+          {{- include "falkordb.labels" . | nindent 10 }}
+      spec:
+        accessModes:
+          {{- toYaml .Values.persistence.accessModes | nindent 10 }}
+        {{- if .Values.persistence.storageClass }}
+        storageClassName: {{ .Values.persistence.storageClass }}
+        {{- end }}
+        resources:
+          requests:
+            storage: {{ .Values.persistence.size }}
+  {{- end }}