single-node-standalone.yaml

# Single-node Neo4j Enterprise Standalone deployment
# This creates a standalone Neo4j deployment in single mode (not clustered)
# Suitable for development, testing, and simple production workloads that don't need scaling
#
# NEW: Now supports Neo4jDatabase resources! You can create databases in standalone
# deployments using the Neo4jDatabase custom resource with clusterRef pointing to this standalone.

apiVersion: neo4j.neo4j.com/v1alpha1
kind: Neo4jEnterpriseStandalone
metadata:
  name: standalone-neo4j
  namespace: default
spec:
  # Neo4j Enterprise Edition (required for this operator)

  # Neo4j Docker image configuration
  image:
    repo: neo4j
    tag: "5.26.0-enterprise"  # Neo4j 5.26+ required
    pullPolicy: IfNotPresent

  # Storage configuration
  storage:
    className: standard  # Use your cluster's default storage class
    size: "10Gi"        # Adjust based on your data needs

  # Persistence configuration
  persistence:
    enabled: true
    retentionPolicy: Delete  # Delete PVCs when standalone is deleted
    accessModes:
      - ReadWriteOnce

  # Resource allocation
  resources:
    requests:
      memory: "2Gi"     # Initial memory allocation
      cpu: "500m"       # Initial CPU allocation
    limits:
      memory: "4Gi"     # Maximum memory
      cpu: "2"          # Maximum CPU cores

  # TLS disabled for simplicity (enable for production)
  tls:
    mode: disabled

  # Authentication configuration
  auth:
    provider: native
    adminSecret: neo4j-admin-secret  # Reference to admin credentials secret

  # Service configuration
  service:
    type: ClusterIP
    annotations:
      service.beta.kubernetes.io/aws-load-balancer-type: nlb  # Example annotation

  # Custom Neo4j configuration (single mode is automatically set)
  config:
    # Memory settings
    server.memory.heap.initial_size: "1G"
    server.memory.heap.max_size: "2G"
    server.memory.pagecache.size: "1G"

    # Security settings
    dbms.security.auth_enabled: "true"
    dbms.security.procedures.unrestricted: "gds.*,apoc.*"

    # Logging settings
    dbms.logs.query.enabled: "true"
    dbms.logs.query.threshold: "1s"

  # Environment variables (optional)
  # Note: NEO4J_ACCEPT_LICENSE_AGREEMENT is managed by the operator
  env: []

  # Node selector for pod scheduling
  nodeSelector:
    kubernetes.io/arch: amd64

  # Tolerations for pod scheduling
  tolerations:
    - key: "neo4j"
      operator: "Equal"
      value: "true"
      effect: "NoSchedule"

  # Monitoring
  monitoring:
    enabled: true
    slowQueryThreshold: "5s"
    explainPlan: true

---
# Admin credentials secret (create this before applying the standalone)
apiVersion: v1
kind: Secret
metadata:
  name: neo4j-admin-secret
  namespace: default
type: Opaque
stringData:
  username: neo4j
  password: your-secure-password-here