Add docker module

modules/README.md

@@ -31,6 +31,11 @@ DNF
 
 Defines dnf aliases.
 
+Docker
+---
+
+Sets the environment variables to work with docker through boot2docker
+
 Dpkg
 ----
 

modules/docker/README.md

@@ -0,0 +1,15 @@
+Docker
+======
+
+Sets the environment variables to work with [docker][1] through [boot2docker][2]
+
+Authors
+-------
+
+*The authors of this module should be contacted via the [issue tracker][3].*
+
+  - [Pavel Chernykh](https://github.com/pavel-v-chernykh)
+
+[1]: http://docker.io/
+[2]: http://boot2docker.io/
+[3]: https://github.com/sorin-ionescu/prezto/issues

modules/docker/init.zsh

@@ -0,0 +1,20 @@
+#
+# Sets the environment variables to work with docker through boot2docker
+#
+# Authors:
+#   Pavel Chernykh <pavel.v.chernykh@gmail.com>
+#
+
+#
+# Return if requirements are not found.
+#
+if (( !( $+commands[docker] && $+commands[boot2docker]) )); then
+  return 1
+fi
+
+#
+# Set the environment variables if boot2docker is running
+#
+if [[ `boot2docker status` == "running" ]]; then
+    eval `boot2docker shellinit 2> /dev/null`
+fi