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Pre-configured Hyperledger Besu node for private QBFT consortium blockchains - no banking or application features, just consensus. Launch the first node with an empty validator list and it self-bootstraps as sole validator, or launch multiple nodes with a shared validator list to form a real multi-party consortium. Deploys via a single CloudFormation stack on Amazon Linux 2023, x86_64 or ARM64 (Graviton). Verified with a live 2-node QBFT deployment: matching genesis, synchronized block production, and a signed transaction mined with an identical receipt on both nodes.
Overview
A pre-configured Hyperledger Besu node for standing up a private, permissioned blockchain using the QBFT consensus algorithm, with no banking, tokenisation, or application-layer features bundled. This is the base consensus layer only, intended for teams who want a clean, minimal-risk starting point for a private consortium chain and will build their own application layer on top. Launch on your own AWS account with a single CloudFormation stack; Besu starts automatically on first boot.
What's included: Hyperledger Besu with QBFT consensus and EVM compatibility. Genesis self-bootstrap - launch the first node of a brand-new network with an empty validator list and it derives its own address and becomes the sole validator automatically, with no manual genesis authoring required. Multi-validator consortium mode - launch additional nodes with a shared, explicit validator address list to form a real multi-party consortium; verified live with a 2-node deployment (x86_64 and ARM64) reaching matching genesis and synchronized block production, with a signed transaction mined and confirmed with an identical receipt on both nodes. Join-network mode to fetch an existing chain's genesis from S3 instead of generating a new one. Standard JSON-RPC and WebSocket endpoints. Amazon CloudWatch integration for host metrics and logs.
What's not included: this product deliberately has no application layer - no token contracts, Open Banking API, API gateway, privacy manager, or workflow templates. See the separate Hyperledger Besu Banking Platform product if you need those. Bring your own smart contracts and off-chain services.
Architecture: each stack launches one Besu node on one EC2 instance under systemd (default m7g.xlarge; the template also allows m7i, r7g, and c7g families). A separate EBS data volume holds chain data independent of the root volume. Ingress is restricted by security group to the consortium CIDR you specify: SSH, Besu P2P, RPC, and WebSocket. To form a consortium, launch one stack per validator with the same validator list on each; nodes discover each other over the network you configure.
Supported OS: Amazon Linux 2023.
Highlights
- Self-bootstrapping genesis - launch the first node with an empty validator list and it configures itself as sole validator automatically, no manual genesis file required
- Real multi-validator consortium support, verified live on a 2-node x86_64 + ARM64 deployment with matching consensus and a cross-node confirmed transaction
- No banking or application-layer bloat - just Besu + QBFT, so you bring your own contracts and services on a minimal, lower-cost footprint.
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QBFT Private Node - CloudFormation One-Click Deploy
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Operating system
AmazonLinux 2023
Deployed on AWS
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Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
Dimension | Cost/hour |
|---|---|
m7i.2xlarge | $0.17 |
m7i.xlarge | $0.09 |
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Delivery details
QBFT Private Node - CloudFormation One-Click Deploy
Deploys one Besu node with QBFT consensus, its own VPC, subnet, security group, and EBS data volume, fully configured via CloudFormation parameters. Leave QbftValidators empty to self-bootstrap the first node of a brand-new network as sole validator, or supply a shared validator address list across multiple stack launches to form a real multi-party consortium - verified live on a 2-node deployment (x86_64 + ARM64) with matching genesis, synchronized block production, and a signed transaction mined with an identical receipt on both nodes. Alternatively, join an existing chain by supplying an S3 URI to its genesis file. This is the only supported launch path for this AMI: configuration is read from CloudFormation-set instance tags, so a standalone EC2 launch without this template will not produce a private QBFT node.
CloudFormation Template (CFT)
AWS CloudFormation templates are JSON or YAML-formatted text files that simplify provisioning and management on AWS. The templates describe the service or application architecture you want to deploy, and AWS CloudFormation uses those templates to provision and configure the required services (such as Amazon EC2 instances or Amazon RDS DB instances). The deployed application and associated resources are called a "stack."
Version release notes
Initial release - Hyperledger Besu 26.7.0 with QBFT consensus. Supports genesis self-bootstrap (single node, no validator list needed) and multi-validator consortium mode. Verified live on a 2-node deployment (x86_64 + ARM64): matching genesis, synchronized block production, and a signed transaction mined with an identical receipt on both nodes.
Additional details
Usage instructions
Single-node quick start: launch with NetworkMode=new-network and QbftValidators left empty. The node derives its own address on first boot and becomes the sole validator automatically (~5 min).
Multi-node consortium: determine each validator's address ahead of time, then launch every node with NetworkMode=new-network and the SAME comma-separated QbftValidators list on all of them. Put nodes in a network where they can reach each other's P2P port (30303 TCP/UDP) - same VPC/CIDR, or exchange enode URLs (emitted to SSM at /besu-platform/<stack>/enode) and add peers via admin_addPeer. Confirm consensus via eth_getBlockByNumber matching across nodes.
Join an existing network: set NetworkMode=join-network and GenesisS3Uri to an existing genesis.json in S3.
Security: restrict ConsortiumCIDR to your actual consortium members' networks only - never expose RPC (8545) publicly.
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