Beginnings of terminal support, but tinyproxy doesn't handle UPGRADE

Dockerfile

@@ -1,5 +1,5 @@
 FROM --platform=${TARGETPLATFORM:-linux/amd64} alpine as build
-RUN apk add crystal shards yaml-dev openssl-dev zlib-dev libxml2-dev
+RUN apk update && apk add crystal shards yaml-dev openssl-dev zlib-dev libxml2-dev && apk cache clean
 RUN addgroup -S app && adduser app -S -G app
 WORKDIR /home/app
 COPY shard.yml ./
@@ -10,7 +10,7 @@ RUN shards build -d --error-trace
 RUN strip bin/*
 
 FROM --platform=${TARGETPLATFORM:-linux/amd64} alpine as ship
-RUN apk add tinyproxy multirun openssl zlib yaml pcre2 gc libevent libgcc libxml2
+RUN apk update && apk add tinyproxy multirun openssl zlib yaml pcre2 gc libevent libgcc libxml2 ttyd && apk cache clean
 
 # Unprivileged user
 RUN addgroup -S app && adduser app -S -G app

src/daemon/main.cr

@@ -1,6 +1,7 @@
 require "./funko.cr"
 require "./proxyconf.cr"
 require "./secrets.cr"
+require "./terminal.cr"
 require "compress/gzip"
 require "crystar"
 require "docr"

src/daemon/proxyconf.cr

@@ -39,6 +39,7 @@ module Proxy
 ReverseOnly Yes
 ReverseMagic Yes
 ReversePath "/admin/" "http://127.0.0.1:3000/"
+ReversePath "/admin/terminal/" "http://127.0.0.1:7681"
   ) + funkos.map { |funko| %(ReversePath "/faaso/#{funko.split("-")[0]}/" "http://#{funko}:3000/") }.join("\n")
 
     if @@current_config != config

src/daemon/terminal.cr

@@ -0,0 +1,20 @@
+module Terminal
+  extend self
+
+  @@terminal_process : Process | Nil = nil
+
+  def start_terminal(_args = ["bash"], readonly = false)
+    args = ["-p", "7681", "-c", "admin:admin", "-o"]
+    args += ["-W"] unless readonly
+    args += _args 
+    # We have a process there, kill it
+    @@terminal_process.as(Process).terminate if !@@terminal_process.nil?
+    @@terminal_process = Process.new(
+      command: "/usr/bin/ttyd",
+      args: args)
+    Log.info {"Terminal started on port 7681"}
+  end
+end
+
+
+Terminal.start_terminal

tinyproxy.conf

@@ -8,3 +8,5 @@
 ReverseOnly Yes
 ReverseMagic Yes
 ReversePath "/admin/" "http://127.0.0.1:3000/"
+ReversePath "/admin/terminal" "http://127.0.0.1:7681"
+  ReversePath "/faaso/hello/" "http://hello-d89veq:3000/"