Cost Management

Cost management is an engineering feedback loop, not a quarterly surprise. Make cost visible near the teams that create architecture and runtime decisions.

Cost ownership

Every production resource should have enough metadata to answer:

• Which service or platform owns it?
• Which team pays attention to it?
• Which environment does it support?
• Is it customer-facing, internal, shared, or experimental?
• What should happen when it exceeds expected spend?

Tagging and allocation

Define required tags or labels before cost reporting matters.

Common tags include:

• service
• team
• environment
• cost_center
• data_classification
• managed_by

Enforce required tags through infrastructure policy where possible. Dashboards without reliable tags become guesswork.

Cost controls

• Set budget alerts for accounts, environments, and major services.
• Track unit cost for high-volume products.
• Review idle resources and unattached storage on a cadence.
• Use autoscaling guardrails and maximums.
• Prefer commitments only after usage stabilizes.
• Include cost impact in architecture reviews.

Optimization loop

Watchouts

• Do not optimize away resilience or security controls blindly.
• Beware shared platforms with no chargeback or showback model.
• Cost spikes often indicate reliability, abuse, or lifecycle problems, not just expensive infrastructure.