index-node

Public Index Node

NGINX setup for LTO public node + indexer

Memory

It is recommended to have at least 2gb of RAM to run this configuration, as the public node alone is configured for 1024mb. Lower memory allocation could result in the node becoming unresponsive.

Configuration

You can configure environment variables for docker compose. The indexer is configured with the following variables:

variable name	description	format	devault value	extra information
LTO_NETWORK	Mainnet or testnet	MAINNET, TESTNET	MAINNET
ASSOCIATION_INDEXING	Indexing of association transactions	none, trust, all	"all"
IDENTITY_INDEXING	Indexing of identities	boolean	true	Tracks verification methods and public keys for addresses
TRANSACTION_INDEXING	Indexing of transactions	boolean	true
ANCHOR_INDEXING	Indexing of anchor transactions	none, trust, all	"all"
STATS_INDEXING	Indexing of blockchain statistics	boolean	true	Enables operations, transactions and supply stats

You can see a list of all of the available variables on the indexer and the public chain repositories.

Docker images

By default, the latest tag is used for all docker images. You can use an alternative tag for the LTO public node by setting LTO_NODE_VERSION and LTO_INDEXER_VERSION for the LTO indexer.

Redis

Data is stored on-disk using LevelDB. You can store the data using Redis. Use the redis profile to start a Redis Graph instance and set the storage type variable:

export STORAGE_TYPE=redis
docker compose --profile redis up

Alternatively, you can run a Redis instance outside of the docker compose cluster and connect to that with the REDIS_URL environment variable. Redis Graph is needed to index associations as a graph.

Cloudformation

Use lto-index-node.ecs.yaml to run the index node using AWS Cloudformation.