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Hyperledger Indy Network Setup | Add New Nodes to the Network with Docker | Akshay Kurhekar


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00:00 – Introduction
Who I am, what this video is about (scaling Hyperledger Indy network from 4 nodes to 7 nodes).

00:36 – Channel Intro & Engagement
Like, Share, Subscribe reminder and quick overview of today’s topic.

01:23 – Why Add More Nodes? (Fault Tolerance)
Explaining consensus, fault tolerance, and the 3F+1 formula for minimum nodes.

02:34 – Understanding Node Capacity
How 4 nodes allow 1 faulty node, and why 7 nodes allow 2 faulty nodes.

03:42 – Scaling Plan
Expanding from 4 nodes to 7 nodes using Ubuntu 20.04, Node.js, Docker & Docker Compose.

04:21 – Repository Overview
Docs, CLI tools, troubleshooting, and today’s focus: adding new nodes.

05:01 – Step 1: Get Docker Host IP
Finding Docker host IP, documenting steps in setup-steps.md.

06:49 – Step 2: ENV File Setup
Creating .env file with 7 node IPs.

08:26 – Step 3: Update Transaction Script
Editing generate_transactions file for 7 nodes.

10:00 – Step 4: Update Start Nodes Script
Expanding script to handle nodes 5, 6, 7.

11:22 – Step 5: Add Node Sections
Defining new node configs (working dir, logs, ports).

12:34 – Step 6: Docker Compose Changes
Adding ports and service definitions for nodes 5–7.

15:14 – Step 7: Manage File Updates
Enabling start & sync commands for new nodes.

16:40 – Step 8: Rebuild & Restart
Removing old images, rebuilding containers, and restarting the network.

17:27 – Step 9: Check Logs
Verifying build success, container startup, and consensus logs.

19:13 – Step 10: Verify Containers
Checking running containers (docker ps), confirming 7 nodes + web server.

20:49 – Step 11: Ledger Verification
Inspecting logs, confirming ledger sync and domain transactions.

22:26 – Step 12: Write Transactions
Creating and registering a DID to test the ledger.

23:56 – Demo: DID Registered Successfully
Confirming DID is visible on the ledger.

24:25 – Wrap-Up & Future Work
Writing schemas, credential definitions, using Indy SDK or agent frameworks.

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