docker-compose:open sql_exporter.yml: no such file or directory

[dongdong159]

I work with docker-compose and how to deal with the issue : Error creating exporter: open sql_exporter.yml: no such file or directory

Thanks!

[Pearu Pung]

The setup process was a bit harrowing since I was not familiar with the setup. Figured it out in an hour though.

For CLI run this:

docker run -p "127.0.0.1:9399:9399" -v <absolute path to folder>/sql-exporter-conf/:/home githubfree/sql_exporter --config.file /home/sql_exporter.yml

Found out that to add commands to entrypoint in compose files, you do it like this:
https://stackoverflow.com/questions/37366857/how-to-pass-arguments-to-entrypoint-in-docker-compose-yml

Hence the docker compose file for me looks like this:

sql-exporter:
    image: githubfree/sql_exporter 
    container_name: sql-exporter
    hostname: sql-exporter
    command: --config.file=/home/sql_exporter.yml
    ports:
      - 127.0.0.1:9399:9399
    volumes:
      - sql-exporter-conf:/home
    environment:
      - POSTGRES_PASSWORD="${PGSQL_PASS:-example}"
      - PUID=1000
      - PGID=1000
      - TZ=Europe/Tallinn
    restart: unless-stopped
volumes:
  sql-exporter-conf:
    driver: local
    driver_opts:
      type: 'none'
      o: 'bind'
      device: <absolute path to folder>/sql-exporter-conf'

Sources:

#22
https://dantehranian.wordpress.com/2015/03/25/how-should-i-get-application-configuration-into-my-docker-containers/

Quote:
The command clause does work as @karthik says above.
As a simple example, the following service will have a -inMemory added to its ENTRYPOINT when docker-compose up is run.

services:
  local-dynamo:
    build: local-dynamo
    image: spud/dynamo
    command: -inMemory