I'm Bernardo, a Cloud & Network Engineer excited to join this DevOps community. I wanted to introduce myself by sharing a hands-on project I'm currently building that addresses real enterprise cloud challenges.
The Problem: Organizations face common pain points when adopting public cloud:
- Security Misconfigurations
- Excessive Permissions & Privilege Escalation
- Security Alert Fatigue & Noise
- Lack of Unified Visibility
- Infrastructure Configuration Drift
- Governance & Policy Enforcement Gaps
- Compliance & Audit Overhead
- Network Segmentation Complexity
- Slow Incident Response
- Container & Kubernetes Security Gaps
- Data Exposure & Breach Risks
- Identity Sprawl & Credential Management
- Unpredictable Cloud Costs & Waste
My Solution: A secure, multi-account Enterprise Cloud Platform on AWS built on security-by-design principles.
Key Architecture Components:
Foundation: AWS Organizations with Service Control Policies (SCPs) for governance, IAM Identity Center for centralized access, and a multi-account strategy (Management, Security, Network, Prod, Dev, Monitor).
Security Operations: Centralized detection using GuardDuty and Security Hub, automated incident response via EventBridge/Lambda, and proactive compliance monitoring with AWS Config.
Zero-Trust Network: Hub-and-spoke model using Transit Gateway with a centralized inspection VPC and Network Firewall. All traffic between Prod and Dev is blocked by default.
Full Automation: Everything is defined as code via Terraform modules, with GitOps-driven application deployment using ArgoCD to EKS clusters.
Unified Observability: Central monitoring account with AWS Managed Prometheus and Grafana for infrastructure, application, and security metrics.
What I'd Love to Discuss:
- Infrastructure Lifecycle: CI/CD strategies for Terraform across multiple accounts, including state management, automated drift detection, and promotion workflows between environments
- GitOps at Scale: Experiences with multi-cluster ArgoCD synchronization, managing application sets, and handling rollbacks in production EKS environments
- Security Shift-Left: Integrating IaC scanning (Checkov/tfsec) into pipelines and implementing policy-as-code before deployment
- Network Patterns: Zero-trust architectures for microservices in EKS, service mesh implementations, and managing VPC endpoints in automated environments.
- Platform Engineering: Building internal developer platforms that maintain security guardrails while enabling developer self-service through Terraform modules and GitOps
- Observability Integration: Correlating deployment events (from ArgoCD) with application performance and security findings in centralized dashboards
I'll be posting weekly progress updates as I work through the architecture diagrams and implementation phases so it would greatly appreciate any feedback on the approach!
I'd be grateful for any insights, suggestions, or experiences you might share from similar implementations. Also happy to answer questions about any part of the architecture!
Looking forward to learning from and contributing to this community.
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