Can Memgraph be a part of Kubernetes cluster?

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How can I include Memgraph into my Kubernetes cluster? I want to use it for the container-managed infrastructure we already have. I need a Helm Chart setup config.

1 Answers

To add Memgraph to your Kubernetes cluster you need to create a Helm Chart. The Helm Chart is a collection of files that describe a related set of Kubernetes resources. Memgraph is a stateful application because it saves data to persistent disk storage for the server, clients, and other applications. The apiVersion is set to apps/v1, which means the below chart supports Helm version 3 or less.

The Helm Chart for a simple setup of Memgraph is:

# StatefulSet
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: memgraph
  labels:
    app.kubernetes.io/name: memgraph
    app.kubernetes.io/managed-by: Helm
spec:
  replicas: 1
  serviceName: memgraph-svc
  selector:
    matchLabels:
      app.kubernetes.io/name: memgraph
  podManagementPolicy: OrderedReady
  updateStrategy:
        type: RollingUpdate
  template:
    metadata:
      labels:
        app.kubernetes.io/name: memgraph
    spec:
      containers:
        - name: memgraph
          image: "memgraph/memgraph:latest"
          imagePullPolicy: Never
          ports:
            - name: memgraph
              containerPort: 7687
          volumeMounts:
            - name: memgraph-lib-storage
              mountPath: /var/lib/memgraph
            - name: memgraph-log-storage
              mountPath: /var/log/memgraph
            - name: memgraph-etc-config
              mountPath: /etc/memgraph/memgraph.conf
              subPath: memgraph.conf
      volumes:
        - name: memgraph-lib-storage
          persistentVolumeClaim:
            claimName: memgraph-lib-pv-claim
        - name: memgraph-log-storage
          persistentVolumeClaim:
            claimName: memgraph-log-pv-claim
        - name: memgraph-etc-config
          configMap:
            name: memgraph-config
---
# Service
apiVersion: v1
kind: Service
metadata:
  name: memgraph-svc
  labels:
    app.kubernetes.io/name: memgraph
    app.kubernetes.io/managed-by: Helm
spec:
  type: ClusterIP
  ports:
    - port: 7687
      targetPort: 7687
      protocol: TCP
      name: bolt
  selector:
    app.kubernetes.io/name: memgraph
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