How to Deploy Stacks Blockchain Nodes on AWS Using Blockchain Node Runners Blueprint

Stacks, a Layer 2 solution built on Bitcoin, enhances Bitcoin's utility by enabling smart contracts and fast transactions without altering Bitcoin's protocol. This guide demonstrates how to deploy Stacks nodes on Amazon Web Services (AWS) using the AWS Blockchain Node Runners blueprint, supporting both single-node and highly available (HA) configurations.

Stacks Blockchain Overview

• Bitcoin Integration: Stacks uses Proof of Transfer (PoX), linking its consensus to Bitcoin. Miners bid Bitcoin to produce Stacks blocks, while signers validate transactions using locked STX tokens.

• Node Types:

  • Miners: Create new blocks.
  • Signers: Validate transactions.
  • Followers: Sync and verify the blockchain.

Solution Architecture

Deploying Stacks nodes on AWS involves:

1. Single-Node Deployment: Ideal for RPC nodes or non-production use.

   • Node syncs via an internet gateway.
   • JSON RPC API is not internet-exposed for security.
   • Secrets backed up in AWS Secrets Manager.

2. HA Node Deployment: Recommended for production dApps.

   • Multiple RPC nodes managed by an Auto Scaling group.
   • Traffic routed through an Application Load Balancer.

👉 Explore AWS Node Runners for Stacks

Infrastructure Recommendations

• Instance Types: c4.4xlarge (efficient block processing) or m5.large (minimum vCPU).
• Disk Space: 512 GB for mainnet.

Deployment Steps

Single-Node Setup

1. Launch a Stacks node in the default VPC.
2. Sync with the Stacks network.
3. Secure secrets via Secrets Manager.
4. Monitor metrics in CloudWatch.

HA Node Setup

1. Deploy nodes in an Auto Scaling group.
2. Use an Application Load Balancer for traffic management.
3. Backup secrets and monitor performance.

FAQ

Q: What consensus mechanism does Stacks use?

A: Proof of Transfer (PoX), which ties Stacks' security to Bitcoin.

Q: Can I deploy miner/signer nodes with AWS Node Runners?

A: Not yet—currently supports follower nodes only.

Q: How do HA nodes improve reliability?

A: Auto Scaling and load balancing minimize downtime.

👉 Get Started with AWS Blueprint

Conclusion

Running Stacks nodes on AWS reduces reliance on third-party providers and strengthens decentralization. For detailed instructions, refer to the AWS Node Runners blueprint.

Have questions? Tag your posts on AWS Re:Post with #blockchain.

About the Authors

• James Burdon: Senior Blockchain Specialist at AWS.
• Nikolay Vlasov: Senior Solutions Architect at AWS.