RPC Monitor Infrastructure

This repository contains the infrastructure code for deploying and managing RPC monitoring Lambda functions across multiple AWS regions (Tokyo and Frankfurt).

Overview

The infrastructure deploys Lambda functions that:

• Monitor RPC endpoint health and performance
• Run every 5 minutes in each region
• Send metrics to Datadog for monitoring
• Store Lambda code in regional S3 buckets

Architecture

• Regions: Frankfurt (eu-central-1) and Tokyo (ap-northeast-1)
• Components per Region:
  • S3 Bucket: Stores Lambda deployment packages
  • Lambda Function: Executes RPC monitoring code
  • EventBridge Rule: Triggers Lambda every 5 minutes
  • CloudWatch Logs: Captures Lambda execution logs
  • IAM Roles & Policies: Manages permissions

Prerequisites

• Terraform ~> 1.10.3
• AWS Account access
• Datadog API key
• Terraform Cloud account

Infrastructure Setup

1. AWS Resources

The infrastructure creates:

• S3 buckets for Lambda code storage
• Lambda functions with 5-minute execution schedule
• Required IAM roles and policies
• EventBridge rules for scheduling

2. Deployment

1. Clone this repository
2. Update variables in frankfurt.tfvars and tokyo.tfvars if needed
3. Commit and push changes
4. Terraform Cloud will automatically plan and apply changes

File Structure

infra/ ├── terraform/ │ ├── module/ │ │ ├── main.tf # Module resources │ │ ├── variables.tf # Module variables │ │ └── outputs.tf # Module outputs │ ├── main.tf # Root configuration │ ├── variables.tf # Root variables │ ├── outputs.tf # Root outputs │ ├── iam.tf # IAM configurations │ ├── frankfurt.tfvars # Frankfurt variables │ └── tokyo.tfvars # Tokyo variables └── rpc_monitor/ └── [Lambda function code]

Outputs

The infrastructure outputs:

• S3 bucket names
• Lambda function names
• EventBridge rule ARNs and schedules
• Lambda function ARNs

Maintenance

Updating Lambda Code

1. Update code in rpc_monitor directory
2. Create new zip package
3. Update will be handled by Terraform

Monitoring

• Check Datadog for metrics
• Review CloudWatch logs for Lambda execution details
• Monitor EventBridge for scheduling issues