sql_exporter docker does not reload configuration.

[chris-tw-m]

Sometimes when we change config in file sql_exporter.yml and inject that via docker volumes, the metric exported does not reflect the change

Docker-compose

sql-exporter:
    image: githubfree/sql_exporter
    ports: ["9399:9399"]
    volumes:
      - ./sql-exporter/:/sql-exporter/
    command:
      - '-config.file=/sql-exporter/sql_exporter.yml'

After I shell into Docker via docker exec -it sql_exporter bin/sh, I see that change are reflected but for some reason sql_exporter does not load new config.

After I used docker-compose down -v to clear the volume, sql_exporter reload the config.

Maybe sql_exporter have some kind of caching?