github.com/AbhinandanKurakure/podman/v3@v3.4.10/test/compose/env_and_volume/README.md (about)

     1  environment variable and volume
     2  ===============
     3  
     4  This test creates two containers both of which are running flask.  The first container has
     5  an environment variable called PODMAN_MSG.  That container pipes the contents of PODMAN_MSG
     6  to a file on a shared volume between the containers.  The second container then reads the
     7  file are returns the PODMAN_MSG value via flask (http).
     8  
     9  Validation
    10  ------------
    11  * curl http://localhost:5000 and verify message
    12  * curl http://localhost:5001 and verify message