How can I create additional user in influxdb2 with a docker-compose.yml - docker

Question

I am able to run a docker-compose.yml that starts an influxdb2 and configures with a admin user, org and bucket. My problem is that I am not able to create an additional user (without admin privileges) via the docker-compose.yml.
I would appreciate if someone could give me a hint.
docker-compose.yml:
`version: "3.5"
services:
influxdb:
image: influxdb:latest
container_name: influxdb2
volumes:
- influxdb-storage:/etc/influxdb2:rw
- influxdb-storage:/var/lib/influxdb2:rw
environment:
- DOCKER_INFLUXDB_INIT_MODE=setup
- DOCKER_INFLUXDB_INIT_USERNAME=adminuser
- DOCKER_INFLUXDB_INIT_PASSWORD=adminpassword
- DOCKER_INFLUXDB_INIT_ORG=myOrg
- DOCKER_INFLUXDB_INIT_BUCKET=myBucket
- DOCKER_INFLUXDB_INIT_ADMIN_TOKEN=randomTokenValue
ports:
- "8086:8086"
restart: unless-stopped`
I tried adding an entrypoint to somehow run the following command:
influx user create -n john -p user -o myOrg
but that did not work.

Answer 1

The influxdb:latest image is described in the following repository: influxdata-docker/influxdb/2.6/
If you check these files you will see that user is created inside entrypoint.sh script in setup_influxd() function, called from main() -> init_influxd().
There is a run_user_scripts() function which runs user-defined scripts on startup, if directory specified by ${USER_SCRIPT_DIR} variable exists:
# Allow users to mount arbitrary startup scripts into the container,
# for execution after initial setup/upgrade.
declare -r USER_SCRIPT_DIR=/docker-entrypoint-initdb.d
...
# Execute all shell files mounted into the expected path for user-defined startup scripts.
function run_user_scripts () {
if [ -d ${USER_SCRIPT_DIR} ]; then
log info "Executing user-provided scripts" script_dir ${USER_SCRIPT_DIR}
run-parts --regex ".*sh$" --report --exit-on-error ${USER_SCRIPT_DIR}
fi
}
I think you could use this functionality to do the additional steps. But probably you'll need to guard against running these steps twice.