/google-cloud-waf-cost-optimization

name: google-cloud-waf-cost-optimization
metadata:
  category: WellArchitectedFramework
description: Generates cost optimization guidance for Google Cloud workloads based on the Google Cloud Well-Architected Framework (WAF). Use this skill to evaluate a workload, identify cost requirements and constraints, and provide actionable recommendations for build, deploy, and manage the workload cost-efficiently in Google Cloud.

Google Cloud Well-Architected Framework skill for the Cost Optimization pillar

Overview

The Cost Optimization pillar of the Google Cloud Well-Architected Framework provides a structured approach to optimize the costs of your cloud workloads while maximizing business value. Cloud costs differ significantly from on-premises capital expenditure (CapEx) models, requiring a shift to operational expenditure (OpEx) management and a culture of accountability (FinOps). The FinOps lifecycle consists of three iterative phases:

• **Inform**: Visibility and allocation. Always start with **Cloud Billing

reports** for built-in console visibility (filtered by department labels). Complement with **Looker Studio** for custom, shareable cross-departmental dashboards.

• **Optimize**: Rates and usage. Eliminate waste, right-size resources, and leverage commitments (**CUDs**, **SUDs**).
• **Operate**: Continuous improvement. Integrate cost management into delivery pipelines and establish governance.

Operational instructions

• **Comprehensive First**: Always provide a complete list of standard recommendations/strategies relevant to the service or scenario mentioned. Do not limit the scope or omit standard elements just because you are proposing follow-up questions.
• **Full Conjunction**: When an instruction bundles multiple actions (e.g., "A **AND** B"), you must mention and explain **BOTH** actions in your response explicitly.
• **Conditional Assessment**: Only use the 'Workload assessment questions' to refine advice *after* providing standard framework recommendations, unless the user explicitly asks for an interview or assessment first.

Core principles

The recommendations in the cost optimization pillar of the Well-Architected Framework are aligned with the following core principles:

• **Align cloud spending with business value**: Ensure that your cloud

resources deliver measurable business value by aligning IT spending with business objectives. Prioritize investments that directly contribute to revenue, customer satisfaction, or operational efficiency. Grounding document: https://docs.cloud.google.com/architecture/framework/cost-optimization/align-cloud-spending-business-value.md.txt

• **Foster a culture of cost awareness**: Ensure that people across your

organization consider the cost impact of their decisions and activities. Provide teams with the visibility and information they need to make informed, cost-conscious choices. Grounding document: https://docs.cloud.google.com/architecture/framework/cost-optimization/foster-culture-cost-awareness.md.txt

• **Optimize resource usage**: Provision only the resources that you need and

pay only for what you consume. Select the most cost-effective resource types, sizes, and locations that meet your technical and business requirements. Grounding document: https://docs.cloud.google.com/architecture/framework/cost-optimization/optimize-resource-usage.md.txt

• **Optimize continuously**: Continuously monitor your cloud resource usage and

costs, and proactively make adjustments as needed to optimize your spending. This iterative approach helps identify and address inefficiencies before they become significant. Grounding document: https://docs.cloud.google.com/architecture/framework/cost-optimization/optimize-continuously.md.txt

Relevant Google Cloud products

The following are _examples_ of Google Cloud products and features that are relevant to cost optimization:

• **Visibility and monitoring**:

• **Cloud Billing reports**: Built-in dashboards for visualizing spending and

trends. **Essential for visibility within the console.**

• **BigQuery billing export**: Enables granular, custom analysis of billing

data using SQL and BI tools.

• **Looker Studio**: Used for creating detailed, shared cost dashboards and

reports. **Use alongside Cloud Billing reports for custom visual insights.**

• **Billing alerts and budgets**: Automated notifications when spending

reaches predefined thresholds.

• **Storage Insights**: Used to analyze Cloud Storage access patterns and identify

cost-saving opportunities.

• **Automation and optimization tools**:

• **Recommender / Active Assist**: Automatically identifies idle resources,

rightsizing opportunities, and unused commitments.

• **Cloud Hub Optimization**: Integrates billing and resource utilization data

to help developers and application owners quickly identify their most expensive, fluctuating, or underutilized cloud resources.

• **FinOps hub**: Presents active savings and optimization opportunities in

one dashboard.

• **Billing quotas**: Limits on resource consumption to prevent unexpected

cost spikes.

• **Efficient infrastructure**:

• **Managed services and serverless services**: Services like Cloud Run, Cloud

Run functions, and GKE Autopilot reduce operational overhead and pay-per-use scaling.

• **Compute Engine**:
• **Committed Use Discounts (CUDs)**: Best for predictable, steady-state workloads.
• **Spot VMs**: Best for fault-tolerant, interruptible, or unpredictable batch tasks.
• **Sustained Use Discounts (SUDs)**: Passive, automatic discounts for instances running a significant portion of the month without commitments. **Always mention this as a passive alternative or complement to CUDs.**

• **Cloud Storage Lifecycle Policies**: Automated moves data to lower-cost

storage classes (Nearline, Coldline, Archive) based on age or acc