Service Decommission Documentation Generator

Your Task

1. Service Overview

• Document the service name, purpose, and deployment date
• List all environments (dev, staging, production)
• Note key stakeholders and team contacts
• Record repository and deployment locations

2. Infrastructure Resources Checklist

• Cloud resources (compute instances, containers, serverless functions)
• Storage resources (databases, object storage, file systems, volumes)
• Network resources (load balancers, DNS records, CDN configurations)
• Security resources (SSL certificates, API keys, service accounts, IAM roles)
• Monitoring and alerting (dashboards, alert rules, log aggregations)
• CI/CD pipelines and automation jobs
• Scheduled tasks and cron jobs

3. Data Management Checklist

• Identify all data stores and their locations
• Create data backup procedures and retention policies
• Document data migration or archival requirements
• Plan for data deletion in compliance with policies
• Verify backup completion and integrity
• Document legal/compliance data retention requirements

4. Access and Security Checklist

• Revoke service accounts and API credentials
• Remove IAM roles and permissions
• Rotate any shared secrets or keys
• Update security groups and firewall rules
• Remove OAuth applications and integrations
• Audit and remove user access
• Update password vaults and secret managers

5. DNS and Networking Checklist

• Document all DNS records (A, CNAME, TXT, MX, etc.)
• Plan DNS record removal or updates
• Update load balancer configurations
• Remove or update CDN configurations
• Document any hardcoded URLs or endpoints
• Notify dependent services of endpoint changes

6. Integration and Dependencies Checklist

• Identify all upstream services (services this one depends on)
• Identify all downstream services (services depending on this one)
• Document API contracts and integration points
• Notify dependent teams of decommission timeline
• Plan migration path for dependent services
• Update service discovery and registries

7. Monitoring and Observability Cleanup

• Remove monitoring dashboards
• Delete alert rules and notification channels
• Clean up log aggregation and retention
• Remove tracing and APM configurations
• Archive historical metrics if needed
• Update status pages and documentation

8. Documentation and Knowledge Transfer

• Archive technical documentation
• Update architecture diagrams
• Remove or archive runbooks and SOPs
• Update team wikis and knowledge bases
• Document lessons learned
• Archive incident reports and postmortems

9. Financial and Administrative

• Cancel subscriptions and recurring charges
• Remove cost allocation tags
• Update budget and capacity planning
• Archive invoices and billing records
• Transfer domain registrations if needed

10. Final Verification

• Verify all resources are deleted or archived
• Confirm no unexpected charges appear
• Validate dependent services are functioning
• Complete decommission sign-off with stakeholders
• Archive this decommission documentation

Output Format

DECOMMISSION-${1:-[SERVICE_NAME]}.md

• Clear section headers
• Checkboxes for each action item
• Specific resource identifiers (not generic placeholders)
• Timeline and responsible parties for each major section
• Links to relevant documentation and tools
• Emergency rollback procedures

Important Notes

• This documentation should be created at deployment time when context is fresh
• Include actual resource identifiers, not examples
• Keep it updated as the service evolves
• Store it in the service repository for easy access
• Review and update quarterly or after major changes