Running Neo4j and Clusters with Docker

In this module, you will run Neo4j in Docker and grow a single container into a working cluster. You will start at the command line with one instance, then scale up to three primaries and two secondaries and operate the cluster through a failure.

This module covers:

• The Neo4j Docker image, its ports, authentication, and data volumes
• The NEO4J_ environment-variable naming convention for configuration
• How primaries, secondaries, and Raft consensus form a cluster
• The discovery, cluster, and Raft ports that let members find each other
• Inspecting topology with SHOW SERVERS and dbms.cluster.overview()
• How reads and writes route, and how the cluster survives losing a primary