Hermit

Piping command line output to the web.

No client needed! Pipe directly to netcat.

$ echo hello, world | nc hermit.server.tld 1337
Your pipe is available at http://hermit.server.tld/v/RNWG8Eua

For ncurses apps, we can use tee with process substitution. Add a sleep command to get a chance to see the view URL.

$ (sleep 5; emacs -nw README.md) | tee >(nc hermit.server.tld 1337)
Your pipe is available at http://hermit.server.tld/v/XASdwked

Can also use the seashells.io client.

$ htop | seashells -i hermit.server.tld -p 1337 -d 5

Docker setup

$ docker build -t hermit .
$ docker run -t -p 1337:1337 -p 8090:8090 hermit

To set config values, specify environment variables with -e:

$ docker run -t -e HERMIT_HOST=example.com    \
                -e HERMIT_SHOW_LISTING=true   \
                hermit

To mount the log directory outside of the docker (for inspection, log rotation, backup, ...)

$ docker run -t -v /path/to/local/dir:/hermit/logs hermit

Native setup

First, install elixir and erlang.

# if you've never used mix / elixir before:
$ mix do local.hex, local.rebar

# by default, hermit will place log files here
$ mkdir /tmp/hermit

$ mix deps.get
$ MIX_ENV=prod mix compile
$ MIX_ENV=prod mix run --no-halt

Configuration

Hermit is configured through environment variables, which are described in lib/hermit/Config.ex.

Set them appropriately and rerun MIX_ENV=prod mix run --no-halt.

Why

hermit is a from scratch implementation of seashells.io, designed to be self hosted, because the idea of seashells.io is super cool, but the server isn't open source.

Also I wanted to play with elixir.