It is important to note that diskover indexes file metadata and does not access file contents ! sist2 is another solution that provides elasticsearch while also accessing file contents.

My docker compose file configuration I uses in my TrueNAS server in Portainer:

version: ‘2’
services:
diskover:
image: lscr.io/linuxserver/diskover
container_name: diskover
environment:
– PUID=1000
– PGID=1000
– TZ=Europe/Berlin
– ES_HOST=elasticsearch
– ES_PORT=9200
volumes:
– /mnt/zfs_tank/Applications/diskover/config/:/config
– /mnt/zfs_tank/:/data
ports:
– 8085:80
mem_limit: 4096m
restart: unless-stopped
depends_on:
– elasticsearch
elasticsearch:
container_name: elasticsearch
image: docker.elastic.co/elasticsearch/elasticsearch:7.17.22
environment:
– discovery.type=single-node
– xpack.security.enabled=false
– bootstrap.memory_lock=true
– “ES_JAVA_OPTS=-Xms1g -Xmx1g”
ulimits:
memlock:
soft: -1
hard: -1
volumes:
– /mnt/zfs_tank/Applications/diskover/data/:/usr/share/elasticsearch/data
ports:
– 9200:9200
depends_on:
– elasticsearch-helper
restart: unless-stopped
elasticsearch-helper:
image: alpine
command: sh -c “sysctl -w vm.max_map_count=262144”
privileged: true

https://hub.docker.com/r/linuxserver/diskover