I'm running Sidekiq 6.4.1 on an Ubuntu 20.04 system with Ruby 3.1.1 installed via Snap for a Rails 7 application.

    Using this systemd template, I noticed something odd when deploying with Capistrano. When my cap script ran `sudo systemctl restart sidekiq`, the Sidekiq process would restart, briefly go active, then go inactive and stop running. I would need to SSH in and manually do a `systemctl restart sidekiq` in order to get the process back up and running.

    With some experimentation, I found that changing the `Restart` configuration from `on-failure` to `always` seems to do the trick. Now, when the Sidekiq process goes inactive, it properly restarts and stays restarted.

    I'm not 100% sure of the "why" behind what's going on, but this change seems to be effective and I have not noticed any side effects.

    Documentation of previous behavior

    Prior to deploy (process running)

    ```
    root@stage-worker01:~# systemctl status sidekiq
    ● sidekiq.service - sidekiq
         Loaded: loaded (/lib/systemd/system/sidekiq.service; enabled; vendor prese>
         Active: active (running) since Thu 2022-03-24 16:34:32 UTC; 51s ago
       Main PID: 118856 (bundle)
          Tasks: 30 (limit: 1120)
         Memory: 291.2M
         CGroup: /system.slice/sidekiq.service
                 └─118856 sidekiq 6.4.1 staging [0 of 20 busy]
    ```

    Immediately post deploy (process restarting)

    ```
    root@stage-worker01:~# systemctl status sidekiq
    ● sidekiq.service - sidekiq
         Loaded: loaded (/lib/systemd/system/sidekiq.service; enabled; vendor prese>
         Active: activating (start) since Thu 2022-03-24 16:38:35 UTC; 9s ago
       Main PID: 119572 (bundle)
          Tasks: 0 (limit: 1120)
         Memory: 43.4M
         CGroup: /system.slice/sidekiq.service
                 ‣ 119572 /var/www/sox/staging/shared/bundle/ruby/3.1.0/bin/sidekiq>
    ```

    After deploy (process started)

    ```
    Mar 24 16:38:35 stage-worker01.suggestionox.com systemd[1]: Starting sidekiq...
    root@stage-worker01:~# systemctl status sidekiq
    ● sidekiq.service - sidekiq
         Loaded: loaded (/lib/systemd/system/sidekiq.service; enabled; vendor prese>
         Active: active (running) since Thu 2022-03-24 16:38:45 UTC; 3s ago
       Main PID: 119572 (bundle)
          Tasks: 0 (limit: 1120)
         Memory: 43.4M
         CGroup: /system.slice/sidekiq.service
                 ‣ 119572 sidekiq 6.4.1 staging [0 of 20 busy]

    Mar 24 16:38:35 stage-worker01.suggestionox.com systemd[1]: Starting sidekiq...
    Mar 24 16:38:45 stage-worker01.suggestionox.com systemd[1]: Started sidekiq.
    ```

    Failure (process inactive)

    ```
    root@stage-worker01:~# systemctl status sidekiq
    ● sidekiq.service - sidekiq
         Loaded: loaded (/lib/systemd/system/sidekiq.service; enabled; vendor prese>
         Active: inactive (dead) since Thu 2022-03-24 16:38:56 UTC; 2s ago
        Process: 119572 ExecStart=/usr/bin/env bundle exec sidekiq -e staging (code>
       Main PID: 119572 (code=exited, status=0/SUCCESS)

    Mar 24 16:38:35 stage-worker01.suggestionox.com systemd[1]: Starting sidekiq...
    Mar 24 16:38:45 stage-worker01.suggestionox.com systemd[1]: Started sidekiq.
    Mar 24 16:38:56 stage-worker01.suggestionox.com systemd[1]: sidekiq.service: Su>
    ```