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terraform-ethnode-cluster

Terraform code to deploy a Flashbots' Ethereum Node Cluster on Goerli testnet:

Requirements

Getting Started

Generate JWT Secret

echo "export JWTSECRET=$(openssl rand -hex 32 | tr -d /"\n/")" >> .env
source .env

Prepare the working directory to execute Terraform

terraform init

Create the infrastructure on AWS

terraform apply -var eth_node_jwtsecret=$JWTSECRET

Note: It is not recommended to store the tfstate file locally. You can keep it safely either using a module like terraform-aws-tfstate-backend or Terraform Cloud

Once Terraform is executed for the first time:

  1. Run Geth and Prysm build scripts
  2. Terminate and recreate the EC2 instances

Now, the EC2 instances should be able to fetch the archives from the S3 bucket.

Terraform Role/User permissions

The following policies must be attached to the IAM Role or User that executes Terraform:

  • AmazonEC2FullAccess
  • AmazonSSMReadOnlyAccess
  • IAMFullAccess
  • CloudWatchLogsFullAccess
  • AmazonVPCFullAccess
  • AmazonElastiCacheFullAccess
  • AmazonS3FullAccess
  • AmazonEventBridgeFullAccess
  • AWSLambda_FullAccess

EC2 instance session and logs

To login to an EC2 instance AWS Systems Manager Session Manager is in place, and either the web console or the awscli command can be used to access it.

Fluent-bit is used to ship logs to CloudWatch inside the log group fluent-bit-cloudwatch. Each service has its own log stream from-fluent-bit-*.