Offline and container diagnostics

Use this page when you need to distinguish an installation problem from an upstream network problem. For your first run, start with Install Leani and follow a block.

Native

The offline fixture uses deterministic blocks with the production runtime and SQLite store. It reports 128 changes, continuous coverage, and database integrity without requiring a network.

Docker

docker build --tag leani:local .
docker volume create leani-quickstart
docker run --rm \
  --volume leani-quickstart:/var/lib/leani \
  leani:local \
  e2e fixture \
  --data-dir /var/lib/leani/fixture \
  --blocks 128 \
  --report /var/lib/leani/fixture/report.json

The runtime image runs as UID/GID 10001 and the named volume remains available for inspecting report.json and leani.sqlite. Remove it explicitly when finished:

docker volume rm leani-quickstart

The image also contains all six lifecycle examples:

docker run --rm leani:local \
  doctor --config /etc/leani/examples/externalized.toml --json

Bounded public event example

After the offline check passes, follow Index a bounded Mainnet range. It includes a matching source configuration, decoded event queries, and coverage checks.

Durable external consumer

For a complete destination setup, use Consume changes into PostgreSQL. The guide specifies its node profile, database, registration secret, and restart check.