Some particular unrelated problem I faced during the above investigation: •

fs_io_manager

uses

/opt/dagster

as a default dir. That leads to a "access denied" error in non-root image. I think it should stick to

$DAGSTER_HOME

or at least to

$HOME

dir (or even to current docker WORKDIR)

Hmm if

$DAGSTER_HOME

is set, the

fs_io_manager

should be pointing to that by default..

$DAGSTER_HOME

is set to a different directory?

In my case: • $DAGSTER_HOME is set to /home/dagster • $HOME is probably the same, I did not check, but that should be the one for a user • current dir is /home/dagster too But I have that access denied message pointing to "/opt/dagster" if I don't provide base_path explicitely. So it could be a bug.