ERROR: Could not find a version that satisfies the requirement MarkupSafe==2.1.2 (from versions: none)

[Dan Munteanu]

While installing gnocchi using the 2023.1/stable | rev 140 charm on Ubuntu 22.04

```
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install ERROR: Could not find a version that satisfies the requirement MarkupSafe==2.1.2 (from versions: none)
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install ERROR: No matching distribution found for MarkupSafe==2.1.2
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install Traceback (most recent call last):
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install File "/var/lib/juju/agents/unit-gnocchi-1/charm/hooks/install", line 8, in <module>
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install basic.bootstrap_charm_deps()
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install File "/var/lib/juju/agents/unit-gnocchi-1/charm/lib/charms/layer/basic.py", line 226, in bootstrap_charm_deps
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install check_call([pip, 'install', '-U', reinstall_flag, '--no-index',
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install File "/usr/lib/python3.10/subprocess.py", line 369, in check_call
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install raise CalledProcessError(retcode, cmd)
unit-gnocchi-1: 22:40:06 WARNING unit.gnocchi/1.install subprocess.CalledProcessError: Command '['/var/lib/juju/agents/unit-gnocchi-1/.venv/bin/pip', 'install', '-U', '--force-reinstall', '--no-index', '--no-cache-dir', '-f', 'wheelhouse', 'MarkupSafe==2.1.2', 'wheel==0.40.0']' returned non-zero exit status 1.
unit-gnocchi-1: 22:40:06 ERROR juju.worker.uniter.operation hook "install" (via explicit, bespoke hook script) failed: exit status 1
```

[Felipe Reyes (freyes)]

Hi, thanks for the bug report.

Can you please share with us the output of "juju status gnocchi"? and the full log of gnocchi
available at /var/log/juju/unit-gnocchi-*.log in the gnocchi unit(s).

Thanks,

[Dan Munteanu (mdc-dmunteanu)]

Hi Felipe,

it's a little bit too late for the logs as I already removed the faulty gnocchi units, but the problem seems to be a version mismatch.

```juju info``` displays rev 140 (which I've used in my bundle)

```
$ juju info gnocchi | grep 2023.1/stable
  2023.1/stable: fb5a58a 2023-08-22 (140) 22MB arm64 ubuntu@22.04, ubuntu@22.10, ubuntu@23.04
```

but

```juju deploy gnocchi --channel 2023.1/stable```

deploys rev 137 which works as expected on ubuntu@22.04.

Best,
Dan

[Felipe Reyes (freyes)]

On Fri, 2023-09-08 at 22:45 +0000, Dan Munteanu wrote:
> Hi Felipe,
>
> it's a little bit too late for the logs as I already removed the faulty
> gnocchi units, but the problem seems to be a version mismatch.
>
> ```juju info``` displays rev 140 (which I've used in my bundle)
>
> ```
> $ juju info gnocchi | grep 2023.1/stable
>   2023.1/stable:       fb5a58a  2023-08-22  (140)  22MB  arm64  ubuntu@22.04, ubuntu@22.10,
> ubuntu@23.04
> ```

you need to take into account the architecture, rev 140 is for arm64. I suggest you to use the `--
arch` flag to avoid including architectures you don't care about, e.g.

    juju info --arch amd64 gnocchi

[Felipe Reyes (freyes)]

I filed a bug to capture this UX issue - https://bugs.launchpad.net/juju/+bug/2035097