Reorg daemon code a bit

src/daemon/proxyconf.cr

@@ -0,0 +1,59 @@
+require "kemal"
+
+module Proxy
+  @@current_config = File.read("tinyproxy.conf")
+
+  # Get current proxy config
+  get "/proxy/" do
+    @@current_config
+  end
+
+  # Bump proxy config to current docker state, returns
+  # new proxy config
+  patch "/proxy/" do
+    Log.info { "Updating routing" }
+    # Get all the funkos, create routes for them all
+    update_proxy_config
+  end
+
+  def self.update_proxy_config
+    docker_api = Docr::API.new(Docr::Client.new)
+    containers = docker_api.containers.list(all: true)
+
+    funkos = [] of String
+    containers.each { |container|
+      names = container.names.select &.starts_with? "/faaso-"
+      next if names.empty?
+      funkos << names[0][7..]
+    }
+    funkos.sort!
+
+    config = %(
+  Port 8888
+  Listen 0.0.0.0
+  Timeout 600
+  Allow 0.0.0.0/0
+  ReverseOnly Yes
+  ReverseMagic Yes
+  ReversePath "/admin/" "http://127.0.0.1:3000/"
+  ) + funkos.map { |funko| %(ReversePath "/faaso/#{funko}/" "http://#{funko}:3000/") }.join("\n")
+
+    if @@current_config != config
+      File.open("tinyproxy.conf", "w") do |file|
+        file << config
+      end
+      # Reload config
+      Process.run(command: "/usr/bin/killall", args: ["-USR1", "tinyproxy"])
+      @@current_config = config
+    end
+    config
+  end
+end
+
+# Update proxy config once a second
+spawn do
+  loop do
+    Proxy.update_proxy_config
+    sleep 1.second
+  end
+end