"ceph-salt deploy --non-interactive" does not display progress reliably

I use "ceph-salt deploy --non-interactive" a lot and I've noticed that it does not display progress messages reliably. Sometimes a message that definitely was supposed to be issued, is not displayed. Other times, a message gets duplicated.

Here is an example of the latter case:

```
admin: [2020-02-26 12:20:30.639116] [admin.mini.com ] [STAGE] [BEGIN] Ceph tools
admin: [2020-02-26 12:20:30.639116] [admin.mini.com ] [STAGE] [BEGIN] Ceph tools
admin: [2020-02-26 12:22:35.684218] [admin.mini.com ] [STAGE] [END ] Ceph tools
```

The "BEGIN" message is duplicated. I've seen messages getting "triplicated" and "quadruplicated" too...

Other times, messages I would expect to see, are not seen. For example, in one run I see:

```
admin: [2020-02-26 10:57:27.763910] [admin.mini.com ] [STAGE] [BEGIN] Ceph tools
admin: [2020-02-26 10:57:27.776911] [admin.mini.com ] [STEP ] [BEGIN] Install cephadm and other packages
admin: [2020-02-26 10:58:40.017343] [admin.mini.com ] [STEP ] [END ] Install cephadm and other packages
admin: [2020-02-26 10:58:40.034019] [admin.mini.com ] [STEP ] [BEGIN] Download ceph container image
```

while in another run I see "Ceph tools" step, but "Install cephadm and other packages" and "Download cpeh container image" messages are not seen at all.

I have not yet discerned any patterns in the occurrence of this phenomenon - it seems random.

The issue names the `ceph-salt deploy --non-interactive` entry point but no files or tests. Start by reproducing deployments and comparing runs with duplicated or missing progress messages; done means each expected message appears once and no messages are omitted.

Written by the indexing model from the issue text.