docker - Airflow how to mount airflow.cfg in docker container

Question

I'm running airflow in a docker container and want to mount my airflow.cfg as a volume so I can quickly edit the configuration without rebuilding my image or editing directly in the running container. I'm able to mount my airflow.cfg as a volume and my airflow webserver successfully reads the configuration from it on start up. However, when I edit on the host changes aren't reflected inside the docker container.

The output for findmnt -M airflow.cfg inside the docker container returns:

TARGET                         SOURCE                                                             FSTYPE OPTIONS
/usr/local/airflow/airflow.cfg /dev/sda1[/host/path/airflow/airflow.cfg~//deleted]  ext4   rw,relatim

From that output it seems like airflow.cfg continues to point to the original unedited version of airflow.cfg. Is there any workaround to allow updating the config file from the host machine?

I'm using the LocalExecutor compose file from the puckel github repo as a base. I modify it to mount airflow.cfg in the compose file instead of copying it in the Dockerfile.

标签： dockerdocker-composeairflowmount

Answer 1

docker-compose.yml我有同样的问题，我通过在 webserver 服务下添加以下行来解决它

- volumes:
  - ./config/airflow.cfg:/usr/local/airflow/airflow.cfg

我的配置文件位于文件config所在的docker-compose.yml文件夹中。