A Neo4j container (docker) with initial data in it - docker

Question

Other database dockers that I've worked with (like Postgres) have a mechanism to import some initial data into their empty instance once the container starts for the first time. This is usually in form of putting your SQL files in a specific folder.
I need to do the same for Neo4j. I want to compose a Neo4j docker image with some data in it. What's the right way to do this?

Answer 1

This could be achieved...
There are 2 requirements:
set initial password, which could be achieved using bin/neo4j-admin set-initial-password <password> and then
import data from file in cypher format cat import/data.cypher | NEO4J_USERNAME=neo4j NEO4J_PASSWORD=${NEO4J_PASSWD} bin/cypher-shell --fail-fast
Sample Dockerfile may look like this
FROM neo4j:3.2
ENV NEO4J_PASSWD neo4jadmin
ENV NEO4J_AUTH neo4j/${NEO4J_PASSWD}
COPY data.cypher /var/lib/neo4j/import/
VOLUME /data
CMD bin/neo4j-admin set-initial-password ${NEO4J_PASSWD} || true && \
bin/neo4j start && sleep 5 && \
for f in import/*; do \
[ -f "$f" ] || continue; \
cat "$f" | NEO4J_USERNAME=neo4j NEO4J_PASSWORD=${NEO4J_PASSWD} bin/cypher-shell --fail-fast && rm "$f"; \
done && \
tail -f logs/neo4j.log
Building image sudo docker build -t neo4j-3.1:loaddata .
And running container docker run -it --rm --name neo4jtest neo4j-3.1:loaddata

Answer 2

example of docker-compose for Neo4j
version: '3'
services:
# ...
neo4j:
image: 'neo4j:4.1'
ports:
- '7474:7474'
- '7687:7687'
volumes:
- '$HOME/data:/data'
- '$HOME/logs:/logs'
- '$HOME/import:/var/lib/neo4j/import'
- '$HOME/conf:/var/lib/neo4j/conf'
environment:
NEO4J_AUTH : 'neo4j/your_password'
# ...