So im building a swarm of Elasticsearch nodes and ideally i would like to see two thing happen.
- Make each node save all its data on a folder on the host.
- Even if the stack is destroyed ones a new container is initiallized it should be able to pick up where the one before was killed using the same volume.
This is what im doing:
docker volume create --opt type=none --opt device=/mnt/data --opt
o=bind --name=elastic-data
docker-compose.yml
version: '3'
services:
elastic-node1:
image: amazon/opendistro-for-elasticsearch:0.8.0
environment:
- cluster.name=elastic-cluster
- bootstrap.memory_lock=false
- "ES_JAVA_OPTS=-Xms32g -Xmx32g"
- opendistro_security.ssl.http.enabled=false
- discovery.zen.minimum_master_nodes=1
volumes:
- elastic-data:/mnt/data
ports:
- 9200:9200
- 9600:9600
- 2212:2212
ulimits:
memlock:
soft: -1
hard: -1
networks:
- elastic-net
deploy:
mode: replicated
replicas: 1
volumes:
elastic-data:
external: true
And then i would start the stack, post some data, remove the stack and staring it again but the data is not being retained.
docker stack deploy --compose-file docker-compose.yml opendistrostack
Im a little bit confused about volumes and im not being able to find a good documentation with a detail explanation for each use case.
Could you point me on the right direction?
Thanks.