GCP Billing Labels for Cost Management

This document describes the billing labels applied to all infrastructure resources for cost tracking and optimization.

Label Structure

Node Pool Labels (Applied to GKE nodes and compute costs)

Label	Purpose	Values
cost-center	Primary cost allocation	infrastructure-management, compute-workloads
workload-category	Service categorization	platform-services, data-science
service-tier	Infrastructure tier	management, compute
billing-category	Billing grouping	infrastructure, gpu-compute, cpu-compute
environment	Environment identifier	dev, prod

Storage Labels (Applied to PVCs and storage costs)

Label	Purpose	Values
cost-center	Primary cost allocation	infrastructure-management
workload-category	Service categorization	platform-services
service-tier	Infrastructure tier	management
billing-category	Storage type	infrastructure-storage, infrastructure-storage-premium
component	Specific service	prometheus, grafana, neo4j-database, etc.

Note: Storage billing categories distinguish between standard (infrastructure-storage) and premium SSD storage (infrastructure-storage-premium) for accurate cost tracking of high-performance storage requirements.

Pod Labels (Applied to running workloads)

Label	Purpose	Values
cost-center	Primary cost allocation	infrastructure-management
workload-category	Service categorization	platform-services
service-tier	Infrastructure tier	management
billing-category	Billing grouping	infrastructure
component	Specific service	prometheus, grafana, argo-workflows-server, etc.

Implementation Examples

Neo4j Database Service

The Neo4j database deployment demonstrates comprehensive billing label implementation:

Pod Labels:

labels:
  cost-center: infrastructure-management
  workload-category: platform-services
  service-tier: management
  billing-category: infrastructure
  component: neo4j-database

Storage Labels (for 1.5TB premium SSD volume):

volumeClaimTemplate:
  metadata:
    labels:
      cost-center: infrastructure-management
      workload-category: platform-services
      service-tier: management
      billing-category: infrastructure-storage-premium
      component: neo4j-database

This labeling strategy enables precise cost tracking of both compute and storage resources for the Neo4j service.

Cost Tracking Queries

GCP Billing Console Filters

To track management infrastructure costs in GCP Billing:

1. All Management Infrastructure:

labels.goog-k8s-node-pool-name="management-nodes" OR
labels.cost-center="infrastructure-management"

1. Management Compute Costs:

service.description="Compute Engine" AND
labels.goog-k8s-node-pool-name="management-nodes"

1. Management Storage Costs:

service.description="Cloud Storage" AND
labels.cost-center="infrastructure-management"

1. By Component:

labels.component="neo4j-database"
labels.component="prometheus"
labels.component="grafana"

1. Premium Storage Costs:

service.description="Compute Engine" AND
labels.billing-category="infrastructure-storage-premium"

Expected Cost Allocation

We should see costs categorized (In GCP Billing) as:

• Infrastructure Management (~$280/month) [n2-standard-8]

• Management node pool compute

• Management storage (Prometheus, Grafana, MLflow, Neo4j)
  • Standard storage: infrastructure-storage
  • Premium SSD storage: infrastructure-storage-premium (e.g., Neo4j 1.5TB)

• Management networking

• Compute Workloads (variable, scales to zero)

• GPU instances for data science workloads

• CPU instances for data processing
• Temporary storage for workflows

Benefits

1. Clear Cost Attribution: Separate management vs. compute costs
2. Budget Planning: Predictable management costs vs. variable compute costs
3. Optimization: Identify which services consume the most resources
4. Chargeback: Allocate costs to appropriate teams/projects
5. Scaling Analysis: Track cost savings from scale-to-zero implementation

Monitoring

Set up GCP Budget Alerts for:

• Total infrastructure-management costs > $2000/month
• Individual component costs (e.g., Neo4j storage > $500/month)
• Premium storage costs (billing-category="infrastructure-storage-premium")
• Unexpected growth in management infrastructure costs

Future Enhancements

• Add team/owner labels for multi-team environments
• Implement automated cost reports by component
• Set up Slack/email alerts for cost thresholds
• Create Grafana dashboards for cost visualization