fnichol · April 27, 2023 15:24 · Mar 6, 2015 · Jan 8, 2014 · Jan 8, 2014 · Nov 19, 2013
diff --git a/README.md b/README.md
@@ -10,4 +10,20 @@
 
 ## Run with HTTP Caching Proxy
 
-Simply start up polipo in the foreground in a terminal/tmux/screen session with: `~/bin/polipo-start`. In your Test Kitchen project verify that caching is enabled by running `kitchen list --debug` and look for the `http_proxy` and `chef_omnibus_url` config options.
+Simply start up polipo in the foreground in a terminal/tmux/screen session with: `~/bin/polipo-start`. In your Test Kitchen project verify that caching is enabled by running `kitchen diagnose` and look for the `http_proxy` and `chef_omnibus_url` config options, like in this abbreviated example output:
+
+```
+---
+timestamp: 2015-03-06 19:27:56 UTC
+kitchen_version: 1.3.1
+instances:
+  default-ubuntu-1204:
+    state_file: {}
+    driver:
+      http_proxy: http://10.0.10.20:8123
+      https_proxy: http://10.0.10.20:8123
+      provision_command: env http_proxy=http://10.0.10.20:8123 bash -c 'curl -L
+        http://www.chef.io/chef/install.sh | bash'
+    provisioner:
+      chef_omnibus_url: http://www.chef.io/chef/install.sh
+```
diff --git a/kitchen.local.yml b/kitchen.local.yml
@@ -1,23 +1,28 @@
 <%
 require 'socket'
 
+# @return [String] public IP address of workstation used for egress traffic
 def local_ip
   @local_ip ||= begin
     # turn off reverse DNS resolution temporarily
     orig, Socket.do_not_reverse_lookup = Socket.do_not_reverse_lookup, true
 
     UDPSocket.open do |s|
-      s.connect '64.233.187.99', 1
+      s.connect '64.233.187.99', 1 # a google IP, does not hit network
       s.addr.last
     end
   ensure
     Socket.do_not_reverse_lookup = orig
   end
 end
 
+# @return [Integer] default polipo listening port
 def local_port ; 8123 ; end
+
+# @return [String] the polipo proxy URL
 def http_proxy_url ; "http://#{local_ip}:#{local_port}" ; end
 
+# @return [TrueClass,FalseClass] whether or not the polipo port is listening
 def proxy_running?
   socket = TCPSocket.new(local_ip, local_port)
   true
@@ -35,8 +40,12 @@ end
 driver:
   http_proxy: <%= http_proxy_url %>
   https_proxy: <%= http_proxy_url %>
-  provision_command: "env http_proxy=<%= http_proxy_url %> bash -c 'curl -L http://www.getchef.com/chef/install.sh | bash'"
+  # used in kitchen-docker to pre-install/cache a Chef Ommnibus package in a
+  # layer before booting containers
+  provision_command: "env http_proxy=<%= http_proxy_url %> bash -c 'curl -L http://www.chef.io/chef/install.sh | bash'"
 
 provisioner:
-  chef_omnibus_url: http://www.getchef.com/chef/install.sh
-<% end %>
+  # installs from an http:// source to enable better caching through
+  # http_proxy, and yes, this is a bit evil
+  chef_omnibus_url: http://www.chef.io/chef/install.sh
+<% end %>
diff --git a/kitchen.local.yml b/kitchen.local.yml
@@ -35,8 +35,8 @@ end
 driver:
   http_proxy: <%= http_proxy_url %>
   https_proxy: <%= http_proxy_url %>
-  provision_command: "env http_proxy=<%= http_proxy_url %> bash -c 'curl -L http://www.opscode.com/chef/install.sh | bash'"
+  provision_command: "env http_proxy=<%= http_proxy_url %> bash -c 'curl -L http://www.getchef.com/chef/install.sh | bash'"
 
 provisioner:
-  chef_omnibus_url: http://www.opscode.com/chef/install.sh
+  chef_omnibus_url: http://www.getchef.com/chef/install.sh
 <% end %>
diff --git a/kitchen.local.yml b/kitchen.local.yml
@@ -32,9 +32,11 @@ end
 %>
 ---
 <% if proxy_running? %>
-driver_config:
+driver:
   http_proxy: <%= http_proxy_url %>
   https_proxy: <%= http_proxy_url %>
-  chef_omnibus_url: http://www.opscode.com/chef/install.sh
   provision_command: "env http_proxy=<%= http_proxy_url %> bash -c 'curl -L http://www.opscode.com/chef/install.sh | bash'"
+
+provisioner:
+  chef_omnibus_url: http://www.opscode.com/chef/install.sh
 <% end %>
diff --git a/README.md b/README.md
@@ -0,0 +1,13 @@
+# Auto-enable Local HTTP Caching in Test Kitchen
+
+**Note:** total experiment and hack, looks nasty, could be awesome:
+
+## Setup
+
+* Drop the `kitchen.local.yml` into `$HOME/.kitchen/config.yml`
+* Install [polipo](http://www.pps.univ-paris-diderot.fr/~jch/software/polipo/) (with Mac: `brew install polipo`, with Ubuntu: `apt-get install polipo`)
+* Drop `polipo-start` and `polipo-console` somewhere useful (perhaps `$HOME/bin`?)
+
+## Run with HTTP Caching Proxy
+
+Simply start up polipo in the foreground in a terminal/tmux/screen session with: `~/bin/polipo-start`. In your Test Kitchen project verify that caching is enabled by running `kitchen list --debug` and look for the `http_proxy` and `chef_omnibus_url` config options.
diff --git a/gistfile1.txt → polipo-console b/gistfile1.txt → polipo-console
diff --git a/gistfile1.txt b/gistfile1.txt
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$DEBUG" ] && set -x
+
+if ! command -v lynx >/dev/null ; then
+  echo "$(basename $0) - lynx command not found, please install and retry"
+  exit 10
+fi
+
+exec lynx "http://127.0.0.1:8123"
diff --git a/polipo-start b/polipo-start
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$DEBUG" ] && set -x
+
+if ! command -v polipo >/dev/null ; then
+  echo "$(basename $0) - polipo command not found, please install and retry"
+  exit 10
+fi
+
+mkdir -p "$HOME/.polipo-cache"
+
+exec polipo \
+  proxyAddress='0.0.0.0' \
+  disableIndexing='false' \
+  disableServersList='false' \
+  allowedClients='0.0.0.0/0' \
+  diskCacheRoot='~/.polipo-cache'
diff --git a/kitchen.local.yml b/kitchen.local.yml
@@ -0,0 +1,40 @@
+<%
+require 'socket'
+
+def local_ip
+  @local_ip ||= begin
+    # turn off reverse DNS resolution temporarily
+    orig, Socket.do_not_reverse_lookup = Socket.do_not_reverse_lookup, true
+
+    UDPSocket.open do |s|
+      s.connect '64.233.187.99', 1
+      s.addr.last
+    end
+  ensure
+    Socket.do_not_reverse_lookup = orig
+  end
+end
+
+def local_port ; 8123 ; end
+def http_proxy_url ; "http://#{local_ip}:#{local_port}" ; end
+
+def proxy_running?
+  socket = TCPSocket.new(local_ip, local_port)
+  true
+rescue SocketError, Errno::ECONNREFUSED,
+  Errno::EHOSTUNREACH, Errno::ENETUNREACH, IOError
+  false
+rescue Errno::EPERM, Errno::ETIMEDOUT
+  false
+ensure
+  socket && socket.close
+end
+%>
+---
+<% if proxy_running? %>
+driver_config:
+  http_proxy: <%= http_proxy_url %>
+  https_proxy: <%= http_proxy_url %>
+  chef_omnibus_url: http://www.opscode.com/chef/install.sh
+  provision_command: "env http_proxy=<%= http_proxy_url %> bash -c 'curl -L http://www.opscode.com/chef/install.sh | bash'"
+<% end %>