minimal-cluster.yaml

# Minimal Neo4j Enterprise cluster example
# This creates a cluster with minimum 2 servers that self-organize
# Servers can host databases with different primary/secondary topologies

apiVersion: neo4j.neo4j.com/v1alpha1
kind: Neo4jEnterpriseCluster
metadata:
  name: minimal-cluster
  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

  # Minimal cluster topology: 2 servers (minimum required for clustering)
  # Servers self-organize and can host databases with different topologies
  topology:
    servers: 2        # Minimum servers for clustering
    # Optional: Constrain all servers to a specific mode (PRIMARY, SECONDARY, or NONE)
    # serverModeConstraint: NONE

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

  # 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)
  # Note: TLS clusters work reliably with the operator's optimizations
  tls:
    mode: disabled
  # To enable TLS:
  # tls:
  #   mode: cert-manager
  #   issuerRef:
  #     name: ca-cluster-issuer
  #     kind: ClusterIssuer

  # Authentication configuration
  # IMPORTANT: The operator requires a secret for authentication
  # Create the secret before deploying the cluster:
  #   kubectl create secret generic neo4j-admin-secret \
  #     --from-literal=username=neo4j \
  #     --from-literal=password=your-secure-password
  auth:
    provider: native  # Default authentication provider
    adminSecret: neo4j-admin-secret

  # Additional environment variables (optional)
  # NOTE: NEO4J_AUTH and NEO4J_ACCEPT_LICENSE_AGREEMENT are managed by the operator
  # and should not be set manually
  env: []

---
# Prerequisites:
# 1. Create admin credentials secret BEFORE applying this cluster:
#    kubectl create secret generic neo4j-admin-secret \
#      --from-literal=username=neo4j \
#      --from-literal=password=your-secure-password
#
# 2. Apply the cluster:
#    kubectl apply -f minimal-cluster.yaml
#
# NOTE: For single-node deployments without clustering, use Neo4jEnterpriseStandalone instead.
# See examples/standalone/single-node-standalone.yaml for non-clustered deployments.