Different environment variables values on root user

[vlombardi]

Hello, may someone please tell me why I get very different environment variables values in the following cases:

1. docker exec -it reteyel_oracle env
2. docker exec -it reteyel_oracle bash -c "env"
3. launching the bash on the container with "docker exec -it reteyel_oracle bash" and then launching "env" from the shell ? I'd expect to have the same environment in the three but it is very different indeed...

The same does not happen with other docker images. Do someone know why?