Apache Airflow version: 1.10.10

What happened:
When I look at environment variables within my Airflow containers, I see AIRFLOW_VERSION="2.0.0.dev0"

What you expected to happen:
Since I built the image with AIRFLOW_INSTALL_VERSION="==1.10.10" , I would expect any reference to the Airflow version to reflect 1.10.10 and not 2.0.0.

How to reproduce it:
Build an image with a specific AIRFLOW_INSTALL_VERSION and then exec into it and printenv or inspect the container and you will see AIRFLOW_VERSION="2.0.0.dev0". It does not appear like this env var impacts anything and it is hard coded to 2.0.0.dev0 at the moment. Most likely, this variable should be replaced with the AIRFLOW_INSTALL_VERSION instead.

docker build . \
--build-arg AIRFLOW_INSTALL_SOURCES="apache-airflow" \
--build-arg AIRFLOW_INSTALL_VERSION="==1.10.10" 

/label area:production-image