To set up the infrastructure, you need to clone the tokamak-thanos-stack repository to your local machine.

Visit the link below to clone the repository:

The tokamak-thanos-stack repository is structured as follows:

• charts: Helm charts for deploying the Thanos chain.
• terraform: Terraform code is used to configure the AWS infrastructure to run the Thanos chain.

In this guide, we will use the Terraform code to set up the infrastructure that forms the foundation of the Thanos chain.

Configure env

Before deploying the infrastructure with Terraform, you need to set up environment variables. we manage the environment variables by creating a .envrc file.

1. Go to terraform directory

   cd terraform
   

2. Copy .envrc.example file to .envrc.

   cp .envrc.example .envrc
   

3. Please fill in the values for the items listed below in the copied file.

   • TF_VAR_thanos_stack_name: Name
   • TF_VAR_aws_region: The AWS region to use.
   • TF_VAR_sequencer_key: The Sequencer Private key.
   • TF_VAR_batcher_key: The Batcher Private key.
   • TF_VAR_proposer_key: The Proposer Private key.
   • TF_VAR_challenger_key: The Challenger Private key.
   • TF_VAR_eks_cluster_admins: Your IAM user ARN.
   • TF_VAR_stack_deployments_path: The path to the file containing the L1 contract address. You can find it here.
   • TF_VAR_stack_l1_rpc_url: The L1 RPC endpoint.
   • TF_VAR_stack_l1_rpc_provider: The L1 RPC Provider.
   • TF_VAR_stack_l1_beacon_url: The beacon RPC endpoint

   <aside> 💡

   Note to env configure

   1. Variables with default values do not need to be modified.
   2. You can ignore TF_VAR_backend_bucket_name for now, as it will be filled in after configuring the Terraform backend.
   3. The ARN of the IAM user can be found in the EC2 console under Users > User name > Summary tab. </aside>

   When you've filled it all in, it should look like this:

   # .envrc file
   
   # Init variables
   export TF_VAR_thanos_stack_name=thanos-stack-example
   export TF_VAR_aws_region=ap-northeast-2
   
   # Backend variables
   export TF_VAR_backend_bucket_name=
   
   export TF_CLI_ARGS_init="-backend-config='bucket=$TF_VAR_backend_bucket_name'"
   export TF_CLI_ARGS_init="$TF_CLI_ARGS_init -backend-config='region=${TF_VAR_aws_region}'"
   
   # Sequencer private keys
   export TF_VAR_sequencer_key=0xYourSequencerSecretKey
   export TF_VAR_batcher_key=0xYourBatcherSecretKey
   export TF_VAR_proposer_key=0xYourProposerSecretKey
   export TF_VAR_challenger_key=0xYourChallengerSecretKey
   
   # VPC variables
   export TF_VAR_azs='["ap-northeast-2a", "ap-northeast-2c"]'
   export TF_VAR_vpc_cidr="192.168.0.0/16"
   export TF_VAR_vpc_name="${TF_VAR_thanos_stack_name}/VPC"
   
   # EKS
   export TF_VAR_eks_cluster_admins='["arn:aws:iam::111111111111:user/thanos-stack"]'
   
   # Uploading chain config files
   export TF_VAR_genesis_file_path="config-files/genesis.json"
   export TF_VAR_rollup_file_path="config-files/rollup.json"
   export TF_VAR_prestate_file_path="config-files/prestate.json"
   export TF_VAR_prestate_hash="0x03ab262ce124af0d5d328e09bf886a2b272fe960138115ad8b94fdc3034e3155"
   
   # Thanos config
   export TF_VAR_stack_deployments_path="~/tokamak-thanos/packages/tokamak/contracts-bedrock/deployments/1-deploy.json"
   export TF_VAR_stack_l1_rpc_url="YourRPCEndpointURL"
   export TF_VAR_stack_l1_rpc_provider="alchemy"
   export TF_VAR_stack_l1_beacon_url="YourBeaconRPCEndpointURL"
   

4. Save and apply the environment variables using the following command.

   $ direnv allow
   
   direnv: loading ~/Documents/tokamak-network/tokamak-thanos-stack/terraform/.envrc
   direnv: export +TF_CLI_ARGS_init +TF_VAR_aws_region +TF_VAR_azs +TF_VAR_backend_bucket_name +TF_VAR_batcher_key +TF_VAR_challenger_key +TF_VAR_eks_cluster_admins +TF_VAR_genesis_file_path +TF_VAR_prestate_file_path +TF_VAR_prestate_hash +TF_VAR_proposer_key +TF_VAR_rollup_file_path +TF_VAR_sequencer_key +TF_VAR_stack_deployments_path +TF_VAR_stack_l1_beacon_url +TF_VAR_stack_l1_rpc_provider +TF_VAR_stack_l1_rpc_url +TF_VAR_thanos_stack_name +TF_VAR_vpc_cidr +TF_VAR_vpc_name
   

Make backend