indexer-docker-compose.md

Indexer Docker Compose Example Setup Guide

This project includes a Docker Compose file and necessary configurations to run an indexer on the Voi network.

Overview of Docker Services

The Docker Compose file defines the following servers:

1. voi-node: This service connects to the Voi network by running a node.
2. conduit: This service retrieves data from the voi-node and stores it in a Postgres database.
3. postgres: This service runs the Postgres database to store data processed by the Conduit service. The data is persisted on a Docker volume.
4. indexer: This service retrieves data from the Postgres database.

graph LR;
    subgraph Internet
        VoiBlockchain[Voi Blockchain]
    end

    subgraph Docker Services
        VoiBlockchain -->|Provides Data| VoiNode[voi-node]
        Conduit[Conduit] -->|Queries| VoiNode
        Conduit -->|Saves Data| PostgresDB[(Postgres DB)]
        Indexer[Indexer] -->|Queries| PostgresDB
    end

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How to Run the Project

Create a Docker network called indexer

docker network create indexer

docker compose up -d

How to Stop the Project

docker compose down

Accessing the Indexer

Once the indexer is up, you can query it via this example command:

curl http://localhost:8980/v2/accounts

Network Syncing Process

The voi-node service will begin syncing with the Voi network. The conduit service will continue advancing the block processing as syncing progresses, which may take some time.

You can check the current sync status with the following command:

docker exec -it indexer-voi-node-1 /node/bin/goal -d /algod/data node status

Token Configuration

The voi-node service utilizes two tokens, stored in the following files:

• algod-data/algod.token
• algod-data/algod.admin.token

These tokens are also referenced in conduit-data/conduit.yml.

To generate a new token, run this command:

head -c 32 /dev/urandom | shasum -a 256 | cut -d ' ' -f 1

Once generated, be sure to update the corresponding configuration files.

Postgres Configuration

Postgres connection strings and default credentials are located within the docker-compose.yml file. Additionally, you can find the Postgres connection settings in conduit-data/conduit.yml.

Conduit Configuration

Documentation on the conduit configuration can be found here

Indexer Configuration

Documentation on the indexer configuration can be found here

Indexer REST API Documentation

Comprehensive documentation for the Indexer REST API is available here

Deleting the Setup

Remove the named Docker overlay network indexer

docket network rm indexer

Remove the Docker volume that contains the Postgres database

docker volume rm indexer_postgres-data