
AWS DevOps Implementation Plan Document Version: 1.0
Date: April 11, 2025
Classification: Confidential Table of Contents
Executive Summary This document outlines a comprehensive AWS DevOps implementation plan focusing on establishing a robust multi-environment AWS infrastructure with industry best practices for CI/CD, security, and infrastructure automation. The plan encompasses creating a landing zone across development, QA, UAT, and production environments using Terraform, implementing core AWS services, automating IAM user management, and migrating existing Kubernetes manifests to Helm charts. The implementation follows AWS Well-Architected Framework principles and addresses operational excellence, security, reliability, performance efficiency, and cost optimization. The plan is structured into 10 prioritized tasks with defined deliverables and deadlines to ensure systematic implementation and measurable outcomes. Project Overview Objectives - Establish a secure, scalable, and standardized AWS environment across multiple stages (dev, qa, uat, prod)
- Implement infrastructure as code using Terraform for consistent environment provisioning
- Automate CI/CD pipelines for streamlined application deployment
- Enforce least privilege principles for IAM user management
- Migrate Kubernetes manifests to Helm charts for better configuration management
- Ensure high availability and disaster recovery for critical services
- Optimize resource usage and implement cost governance
- AWS account structure and landing zone implementation
- Core infrastructure services: EC2, Auto Scaling Groups, ALBs, OpenSearch, Cognito, ECS, ECR, RDS PostgreSQL
- IAM automation and security posture
- CI/CD pipeline configuration
- Kubernetes manifest migration to Helm charts
- Frontend, API, backend, and payment gateway service configurations
- Monitoring, logging, and observability implementations
Success Criteria - All environments provisioned and managed through infrastructure as code
- Successful deployment of applications across all environments via CI/CD pipelines
- Complete migration of Kubernetes manifests to Helm charts
- Automated user provisioning with least privilege enforcement
- Comprehensive monitoring and alerting system
- Documented disaster recovery procedures with verified RPO/RTO
- Cost optimization mechanisms in place with clear visibility into resource usage
Task Breakdown Task 1: AWS Landing Zone Creation with Terraform Priority: High
Deadline: 2 weeks
Owner: Lead DevOps Engineer Description Design and implement a multi-account AWS organization structure with separate accounts for dev, qa, uat, and prod environments. Create a baseline infrastructure using Terraform that enforces security, compliance, and operational best practices. Approach
- Define AWS Organizations structure with dedicated accounts for each environment
- Implement a Transit Gateway for centralized network connectivity
- Configure VPC peering and subnet segmentation according to workload types
- Establish centralized logging with CloudWatch Logs
- Enable security services: GuardDuty, AWS Config, and Security Hub
Deliverables - Terraform modules for AWS Organizations and account structure
- Network architecture with proper VPC segmentation and transit gateway
- Security baseline implementation (GuardDuty, Security Hub, Config)
- Centralized logging architecture with CloudWatch Logs
- AWS Organizations implementation with SCP policies
- Documentation of the landing zone architecture
Best Practices - Implement Infrastructure as Code for all configurations
- Use remote state with locking for Terraform state management
- Follow the principle of least privilege for service accounts
- Implement network segmentation with private subnets
- Enable default encryption for all storage resources
- Establish standardized tagging strategy for resources
Task 2: Infrastructure as Code for Core Services Priority: High
Deadline: 3 weeks
Owner: Infrastructure Engineer Description Develop Terraform modules for core AWS services including EC2 instances, Auto Scaling Groups, Application Load Balancers, OpenSearch, Amazon Cognito, ECS/ECR, and RDS PostgreSQL with primary and replica configurations. Approach
- Create reusable Terraform modules for each service
- Define environment-specific variables for customization
- Implement module dependencies and proper resource ordering
- Configure scaling policies based on environment requirements
- Establish high availability configurations for production services
Deliverables - Terraform modules for EC2 instances with Auto Scaling Groups
- ALB configuration with proper health checks and target groups
- OpenSearch cluster configuration with domain policies
- RDS PostgreSQL primary and secondary replicas with appropriate subnet groups
- ECS/ECR configuration for containerized workloads
- Service documentation with architecture diagrams
Best Practices - Use parameter store for environment-specific configurations
- Implement auto scaling based on appropriate metrics
- Configure health checks and failure detection for all services
- Use multi-AZ deployments for high availability
- Enable encryption at rest and in transit
- Implement consistent tagging for cost allocation
Task 3: IAM User Automation & Least Privilege Framework Priority: High
Deadline: 1 week
Owner: Security Engineer Description Design and implement an automated system for IAM user provisioning and management that enforces least privilege principles across all environments. Establish a framework for role-based access control that aligns with organizational structure. Approach
- Design role-based access patterns for different user personas
- Implement AWS Lambda functions for user provisioning workflows
- Create permission boundaries to restrict maximum permissions
- Develop processes for access reviews and permission adjustments
- Configure automated credential rotation mechanisms
Deliverables - Automated user provisioning workflow with AWS Lambda
- Role-based access control framework with environment-specific permissions
- Service control policies (SCPs) for account-level guardrails
- Permission boundary enforcement for self-service capabilities
- Regular IAM credential rotation mechanism
- Access management documentation and procedures
Best Practices - Implement just-in-time access where feasible
- Use AWS Single Sign-On for identity federation
- Enforce MFA for all human users
- Apply permission boundaries to all roles
- Regularly review and prune unused permissions
- Log and monitor privileged access usage
Task 4: CI/CD Pipeline Implementation Priority: High
Deadline: 2 weeks
Owner: DevOps Engineer Description Establish comprehensive CI/CD pipelines for all application components using AWS CodePipeline, CodeBuild, and related services. Create separate pipeline configurations for different environments with appropriate approval gates. Approach
- Design standardized pipeline structures for different application types
- Configure source code integration with GitHub/GitLab repositories
- Implement build specifications for various application technologies
- Define deployment strategies based on environment needs
- Establish testing stages with appropriate validation criteria
Deliverables - AWS CodePipeline configurations for all environments
- AWS CodeBuild projects with environment-specific build specs
- Integration with version control system (GitHub/GitLab)
- Deployment strategies defined for different services (blue/green, canary)
- Artifact management workflow with S3 or ECR
- Pipeline documentation and troubleshooting guides
Best Practices - Implement infrastructure validation steps in pipelines
- Use environment-specific approval gates
- Configure pipeline notifications for key events
- Store build artifacts with proper versioning
- Implement automated rollback capabilities
- Use parameter store for sensitive build variables
Task 5: Kubernetes Migration to Helm Charts Priority: Medium
Deadline: 4 weeks
Owner: Kubernetes Specialist Description Convert existing Kubernetes manifest files to Helm charts to improve configuration management, templating, and deployment processes for containerized applications. Establish standard chart structures and versioning approaches. Approach
- Analyze existing Kubernetes manifests to identify patterns
- Design Helm chart structure with standardized templates
- Create environment-specific value overrides for each environment
- Implement secrets management integration with AWS
- Configure release and rollback strategies
Deliverables - Helm chart repository structure for all applications
- Standardized values.yaml templates with environment overrides
- Kubernetes secrets management with AWS Secrets Manager integration
- Release and rollback strategies defined in Helm configurations
- CI/CD integration for automated Helm deployments
- Documentation of chart structure and customization options
Best Practices - Use semantic versioning for Helm charts
- Implement hooks for pre/post deployment actions
- Create comprehensive chart documentation
- Use templatized configurations for environment-specific settings
- Validate charts with lint tools before deployment
- Store charts in a centralized repository
Task 6: Environment-Specific Service Configurations Priority: Medium
Deadline: 3 weeks
Owner: Application Platform Engineer Description Create environment-specific configurations for all application services including frontend applications, API gateways, backend services, and payment gateway integrations. Implement appropriate scaling, security, and integration settings for each environment. Approach
- Define configuration strategy for environment-specific settings
- Implement secure parameter storage for sensitive configurations
- Configure service discovery and integration points
- Establish scaling policies based on environment requirements
- Implement proper integration with external services
Deliverables - Configuration management for frontend applications
- API gateway configurations with appropriate throttling and caching
- Backend service definitions with auto-scaling policies
- Payment gateway integration with proper security controls
- Cognito user pool configuration with MFA and federation options
- Service configuration documentation
Best Practices - Store configurations in AWS Parameter Store/Secrets Manager
- Implement configuration versioning and change tracking
- Use feature flags for environment-specific feature enablement
- Configure appropriate timeouts and circuit breakers
- Implement proper error handling and fallback mechanisms
- Document integration points and dependencies
Task 7: Monitoring & Observability Stack Priority: Medium
Deadline: 2 weeks
Owner: Operations Engineer Description Implement a comprehensive monitoring and observability solution that provides visibility into infrastructure health, application performance, and business metrics. Configure appropriate alerting mechanisms and dashboards for different stakeholders. Approach
- Define key metrics and monitoring requirements for all services
- Configure CloudWatch dashboards and alarms for critical components
- Implement distributed tracing with AWS X-Ray
- Establish log aggregation and analysis mechanisms
- Create custom metrics for business-specific monitoring
Deliverables - CloudWatch dashboards for all critical services
- Alarm configurations with proper notification channels
- X-Ray tracing implementation for distributed systems
- Log aggregation and analysis solution
- Custom metrics collection for business-specific KPIs
- Monitoring documentation and runbooks
Best Practices - Implement multi-level alerting with proper severity classification
- Configure actionable alerts with clear resolution steps
- Use log insights for efficient log analysis
- Implement tracing for end-to-end request flow
- Create service-level objectives (SLOs) for key services
- Configure appropriate retention periods for monitoring data
Task 8: Infrastructure Security Hardening Priority: Medium
Deadline: 3 weeks
Owner: Security Engineer Description Implement comprehensive security controls across all AWS infrastructure components to protect against common threats and vulnerabilities. Configure network segmentation, encryption, and access controls according to industry best practices. Approach
- Define security baselines for different resource types
- Implement network security controls with defense in depth
- Configure encryption for data at rest and in transit
- Implement web application protection mechanisms
- Establish automated security scanning and remediation
Deliverables - Security group ruleset definitions for all services
- Network ACL configurations for additional security layers
- WAF implementation for public-facing applications
- KMS key management for sensitive data encryption
- Automated security scanning integrated into CI/CD
- Security documentation and compliance evidence
Best Practices - Apply principle of least privilege for all network access
- Implement defense-in-depth security architecture
- Configure automatic rotation for security credentials
- Use AWS-managed keys where appropriate
- Implement immutable infrastructure approaches
- Regularly scan for security vulnerabilities
Task 9: Disaster Recovery & Backup Strategy Priority: Low
Deadline: 4 weeks
Owner: Reliability Engineer Description Design and implement comprehensive disaster recovery and backup procedures to ensure business continuity in case of various failure scenarios. Define recovery time objectives (RTOs) and recovery point objectives (RPOs) based on business requirements. Approach
- Classify services based on criticality and recovery requirements
- Design multi-region architecture for critical services
- Implement automated backup procedures with appropriate retention
- Create disaster recovery runbooks for different failure scenarios
- Establish regular testing procedures for recovery mechanisms
Deliverables - Multi-region failover architecture for critical services
- Regular backup procedures for databases and stateful services
- Recovery time objective (RTO) and recovery point objective (RPO) documentation
- Disaster recovery runbooks for various failure scenarios
- Automated DR testing framework
- Business continuity documentation
Best Practices - Use AWS Backup for centralized backup management
- Implement cross-region replication for critical data
- Configure automated failover mechanisms where appropriate
- Test recovery procedures regularly
- Document recovery procedures in detail
- Train operations staff on disaster recovery procedures
Task 10: Cost Optimization & Governance Priority: Low
Deadline: 2 weeks
Owner: FinOps Specialist Description Implement mechanisms for cost visibility, optimization, and governance across all AWS environments. Establish proper resource tagging, budgeting, and monitoring to ensure efficient resource utilization. Approach
- Define comprehensive tagging strategy for all resources
- Implement AWS Budgets with appropriate alerts
- Configure Cost Explorer for detailed cost analysis
- Identify and implement right-sizing opportunities
- Establish processes for regular cost reviews
Deliverables - Resource tagging strategy for cost allocation
- AWS Budget alerts and anomaly detection
- Right-sizing recommendations for over-provisioned resources
- Reserved instance and savings plan strategy
- Automated cleanup of unused resources
- Cost optimization documentation and procedures
Best Practices - Implement mandatory tagging enforcement
- Use automated instance scheduling for non-production environments
- Configure lifecycle policies for temporary storage
- Implement auto-scaling based on demand patterns
- Use spot instances where appropriate
- Regularly review and act on cost anomalies
Implementation Timeline Week | Tasks in Progress | Milestones |
1 | Task 1, Task 3 | IAM automation framework completed |
2 | Task 1, Task 4 | Landing zone architecture completed |
3 | Task 2, Task 4 | CI/CD pipeline framework established |
4 | Task 2, Task 7 | Core services Terraform modules completed |
5 | Task 2, Task 5, Task 7 | Monitoring baseline established |
6 | Task 5, Task 6, Task 8 | Initial Helm chart migration completed |
7 | Task 5, Task 6, Task 8 | Environment-specific configurations completed |
8 | Task 5, Task 8, Task 10 | Security hardening completed |
9 | Task 9, Task 10 | Cost optimization framework established |
10 | Task 9 | Disaster recovery procedures completed |
Resource Requirements Personnel - Lead DevOps Engineer - Overall implementation leadership and architecture design
- Infrastructure Engineer - Terraform development and AWS services configuration
- Security Engineer - IAM automation and security hardening
- DevOps Engineer - CI/CD pipeline implementation
- Kubernetes Specialist - Helm chart migration
- Application Platform Engineer - Service configuration management
- Operations Engineer - Monitoring and observability implementation
- Reliability Engineer - Disaster recovery planning
- FinOps Specialist - Cost optimization and governance
Tools - Version Control - GitHub/GitLab for code and configuration management
- Infrastructure as Code - Terraform for AWS resource provisioning
- Container Orchestration - Kubernetes and Helm for containerized applications
- CI/CD - AWS CodePipeline, CodeBuild, CodeDeploy
- Monitoring - CloudWatch, X-Ray, Prometheus, Grafana
- Security - AWS Security Hub, GuardDuty, IAM Access Analyzer
Risk Assessment and Mitigation Risk | Impact | Likelihood | Mitigation Strategy |
Terraform state corruption | High | Low | Use remote state with versioning and locking; implement state backup procedures |
Service disruption during migration | High | Medium | Use blue/green deployment strategies; schedule changes during low-traffic periods |
Security vulnerabilities | High | Medium | Implement security scanning in CI/CD; conduct regular penetration testing |
Cost overruns | Medium | Medium | Implement strict budgeting; use cost anomaly detection; regular cost reviews |
Knowledge gaps in team | Medium | High | Provide targeted training; engage AWS professional services when needed |
Dependency on external services | Medium | Medium | Implement circuit breakers; design fallback mechanisms |
Scope creep | Medium | High | Clear task definitions; regular progress reviews; change control process |
Compliance and Governance Security Controls - Encryption of data at rest and in transit
- Multi-factor authentication for all user accounts
- Network segmentation and security group policies
- Regular security scanning and remediation
- Comprehensive logging and monitoring
- Least privilege access controls
Compliance Requirements - Regular compliance scanning and reporting
- Evidence collection for audit purposes
- Configuration validation against compliance benchmarks
- Automated remediation for compliance violations
- Documentation of security controls and procedures
Governance Processes - Change management procedures for infrastructure changes
- Regular security and operational reviews
- Cost allocation and optimization reviews
- Performance and reliability assessments
- Documentation and knowledge management
Appendices Appendix A: AWS Account Structure https://github.com/prasad-moru/AWS_EKS_TF
https://github.com/prasad-moru/multi_cloud_stratagies
Appendix B: Network Architecture multi account solution architecture
Appendix C: CI/CD Pipeline Architecture https://github.com/prasad-moru/fe_canary_stratagy
Appendix D: Helm Chart Structure https://github.com/prasad-moru/e-commerce
Document Prepared By: DevOps Team
Reviewed By: CTO
Approved By: CIO