Cost Optimized Egress Firewall with Compliance-Driven Security

Designed and implemented a highly secure and cost-efficient egress firewall solution to meet strict compliance requirements while significantly reducing operational expenses.

egress-firewall

Technologies Used

  • terraform
  • prometheus
  • grafana

Key Features List

  • Created an Egress Firewall aligning with stringent business and compliance standards.
  • Leveraged iptables to build a fine-tuned and highly secure environment, utilizing its flexibility for granular rule definition.
  • Implemented “Allow-Only” traffic rules, ensuring applications and business processes could communicate only with approved external endpoints.
  • Achieved major cost savings, including:
    • 70% reduction in overall project expenditure.
    • 90% reduction in firewall-related costs by replacing traditional managed firewalls with iptables.
  • Infrastructure provisioning using Terraform, enabling consistent, scalable, and automated environment creation.
  • Built automation workflows using Go (Golang) and Shell scripting for configuration management, deployment tasks, and routine operations.
  • Integrated monitoring systems using Prometheus and Grafana to track firewall performance, latency, and policy effectiveness.

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