Ask HN: How does `lnav` run its playground which you can just SSH into?

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    It looks like they run an SSH server inside a Docker container defined by this Dockerfile [1]. This uses the ForceCommand directive in the sshd_config file to ensure that a specific command is run when a user connects (rather than the user connecting directly to a shell).

    Depending on whether the user connects as the `playground` or `tutorial1` user they interact with a bash script that is either [2] or [3].

    [1]: https://github.com/tstack/lnav/blob/master/demo/Dockerfile

    [2]: https://github.com/tstack/lnav/blob/master/docs/tutorials/pl...

    [3]: https://github.com/tstack/lnav/blob/master/docs/tutorials/tu...

  • shell-bling-ubuntu

    A few scripts to be run on a fresh-off-the-presses Ubuntu VM, in order to get its shell nice 'n purdy.

  • https://lnav.org/ has a feature that single handedly sold me on trying out the fantastic software: An SSH-reachable playground. It's right there above the fold on the first page: ssh://[email protected]

    I want to build a similar playground for people who want to get familiar with the tools my Shell Bling Ubuntu repo provides ( https://github.com/hiAndrewQuinn/shell-bling-ubuntu ). Ideally it consists of a series of very simple tasks to get one's feet wet with each tool provided: Using fish's autocompletion, then using fzf's shell keybindings, then using rg instead of grep to search an enormous number of files for a single needle character in a million lines of wheat , and so on.

    I have no clue how to do this safely. I've never seen how anyone else does it either. Can anyone provide me some pointers?

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