Neo4j.conf file is missing when creating a cluster

[VINNUSAURUS]

I have created a neo4j cluster using YAML file, when run the file using docker-compose up --detach everything runs fine but the neo4j.conf file is missing.

version: "3"
services:
       
       core1:
            image: neo4j:3.5.11-enterprise
            ports:
                  - "11474:7474"
                  - "11687:7687"
            environment: 
              NEO4J_dbms_mode: CORE
              NEO4J_causal__clustering_minimum__core__cluster__size__at__formation: 3
              NEO4J_causal__clustering_minimum__core__cluster__size__at__runtime: 3
              NEO4J_causal__clustering_initial__discovery__members: core1:5000,core2:5000,core3:5000
              NEO4J_dbms_connector_bolt_advertised__address: localhost:11687
              NEO4J_ACCEPT_LICENSE_AGREEMENT: 'yes'
            volumes:
                   - /home/vinnu/Development/reap-cluster/core1/conf:/conf
                   - /home/vinnu/Development/reap-cluster/core1/data:/data
                   - /home/vinnu/Development/reap-cluster/core1/logs:/logs
              

       core2:
            image: neo4j:3.5.11-enterprise
            ports:
                  - "12474:7474"
                  - "12687:7687"
            environment: 
              NEO4J_dbms_mode: CORE
              NEO4J_causal__clustering_minimum__core__cluster__size__at__formation: 3
              NEO4J_causal__clustering_minimum__core__cluster__size__at__runtime: 3
              NEO4J_causal__clustering_initial__discovery__members: core1:5000,core2:5000,core3:5000
              NEO4J_dbms_connector_bolt_advertised__address: localhost:12687
              NEO4J_ACCEPT_LICENSE_AGREEMENT: 'yes'
            volumes:
                   - /home/vinnu/Development/reap-cluster/core2/conf:/conf
                   - /home/vinnu/Development/reap-cluster/core2/data:/data
                   - /home/vinnu/Development/reap-cluster/core2/logs:/logs
              

       core3:
            image: neo4j:3.5.11-enterprise
            ports:
                  - "13474:7474"
                  - "13687:7687"
            environment: 
              NEO4J_dbms_mode: CORE
              NEO4J_causal__clustering_minimum__core__cluster__size__at__formation: 3
              NEO4J_causal__clustering_minimum__core__cluster__size__at__runtime: 3
              NEO4J_causal__clustering_initial__discovery__members: core1:5000,core2:5000,core3:5000
              NEO4J_dbms_connector_bolt_advertised__address: localhost:13687
              NEO4J_ACCEPT_LICENSE_AGREEMENT: 'yes'
            volumes:
                   - /home/vinnu/Development/reap-cluster/core3/conf:/conf
                   - /home/vinnu/Development/reap-cluster/core3/data:/data
                   - /home/vinnu/Development/reap-cluster/core3/logs:/logs
              
       read_replica_1:
            image: neo4j:3.5.11-enterprise
            ports:
                  - "14474:7474"
                  - "14687:7687"
            environment: 
              NEO4J_dbms_mode: READ_REPLICA
              NEO4J_causal__clustering_initial__discovery__members: core1:5000,core2:5000,core3:5000
              NEO4J_dbms_connector_bolt_advertised__address: localhost:14687
              NEO4J_ACCEPT_LICENSE_AGREEMENT: 'yes'
            volumes:
                   - /home/vinnu/Development/reap-cluster/read_replica_1/conf:/conf
                   - /home/vinnu/Development/reap-cluster/read_replica_1/data:/data
                   - /home/vinnu/Development/reap-cluster/read_replica_1/logs:/logs

[david_allen · Accepted solution]

VINNUSAURUS:

/home/vinnu/Development/reap-cluster/core1/conf:/conf

This line right here says that you will provide the conf file by writing one and placing it in your local reap-cluster/core1/conf directory. Since that directory appears to be empty, neo4j probably can't start because you haven't configured it.

The solution is to either write your own config file and place it in that directory, or else don't mount the /conf volume in the docker container and let Neo4j generate its own default config.

[VINNUSAURUS]

Thanks, helpful