initial version of the ansible for windows wrapper

.gitignore

@@ -22,3 +22,4 @@ _testmain.go
 *.exe
 *.test
 *.prof
+/.project

README.md

@@ -1,2 +1,179 @@
-# ansible-win-wrapper
-Executable wrapper to wrap ansible commands on windows using cygwin and cygwin-python
+# Ansible Wrapper for Windows
+
+This is a simple executable wrapper to allow Vagrant to run ansible commands on windows through to a configured cygwin environment. There are a few [threads](http://stackoverflow.com/questions/29743491/how-to-install-ansible-playbook-on-windows-as-host-with-vagrant) out there that document the use of batch files to bootstrap ansible but I found the windows command shell does not actually work properly when using `--extra-vars` for instance.
+
+We assume you have installed a working cygwin shell on your workstation.
+
+### Installation
+
+##### Install Cygwin Packages
+
+Use the cygwin package installer from https://cygwin.com/ and install the following packages:
+* python
+* python-setuptools
+* gcc-g++
+* wget
+* openssh
+* curl
+* git
+
+Now you should have base python environment installed in your cygwin environment.
+
+##### Configure Python Environment
+
+First lets open up a cygwin terminal and install pip.
+
+```sh
+$ easy_install-2.7 pip
+```
+
+Thereafter we will update `pip` and `setuptools`
+
+```sh
+$ pip install -U pip setuptools
+```
+
+##### Install Ansible
+
+Still in the cygwin terminal we need to install the ansible dependencies.
+
+```sh
+$ pip install -U crypto paramiko PyYAML Jinja2 httplib2 six
+```
+
+And finally lets install ansible itself.
+
+```sh
+$ pip install -U ansible
+```
+
+Quick test to ensure it works.
+
+```sh
+$ ansible --version
+ansible 2.0.0.2
+  config file =
+  configured module search path = Default w/o overrides
+```
+
+### Configure Vagrant Environment to work with Ansible
+
+To bridge Vagrant on windows to Ansible on Cygwin we can now use the Ansible Wrapper for Windows binary. The Vagrant Ansible provisionser will use the Vagrant windows environment to load the `ansible-playbook` executable. So we need to ensure Vagrant will find the wrapper executable to hand off to the Cygwin envionment.
+
+Simply copy the `ansible-win-wrapper.exe` into the same folder of the `vagrant.exe` and rename it to `ansible-playbook.exe`.
+
+```cmd
+copy ansible-win-wrapper C:\HashiCorp\Vagrant\bin\ansible-playbook.exe
+
+vagrant --version
+Vagrant 1.8.1
+
+ansible-playbook --version
+ansible-playbook 2.0.0.2
+  config file =
+  configured module search path = Default w/o overrides
+```
+
+Et voilà, ansible-playbook should now work from vagrant.
+
+### Test Example
+
+Setup a Vagrant project folder with a few basic files. I use cygwin terminal for simplicity but you can also do all of this in windows command or powershell.
+
+```sh
+$ mkdir ~/vagrant-test
+$ cd ~/vagrant-test
+```
+
+All 4 files listed below go into the project folder. 
+
+**`Vagrantfile`**
+
+A basic Vagrant machine definition with ansible provisioner configuration.
+
+```rb
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+Vagrant.configure(2) do |config|
+
+  config.vm.box = "hashicorp/precise64"
+
+  config.vm .provision "ansible" do |ansible|
+    ansible.verbose = "v"
+    ansible.limit = "all"
+    ansible.inventory_path = "./inventory"
+    ansible.playbook = "playbook.yml"
+  end
+
+end
+```
+
+**`ansible.cnf`**
+
+Ansible default configuration with some Windows specific config.
+
+```properties
+[defaults]
+host_key_ckecking = False
+[ssh_connection]
+# ControlMaster on cygwin OpenSSH does not work, so disable it
+control_path = none
+```
+
+**`inventory`**
+
+Need to create an ansible inventory definition, the default Vagrant generated one does not work, vagrants ansible provisioner generates a inventory path arg that is Windows but must POSIX for ansible to work properly, so we just cheat a little.
+
+```properties
+default ansible_ssh_host=127.0.0.1 ansible_ssh_port=2222 ansible_ssh_user='vagrant' ansible_ssh_private_key_file='./.vagrant/machines/default/virtualbox/private_key'
+```
+Note: You may need to adjust the `ansible_ssh_port` to whatever the Vagrant machine bound to. You can get around all this by using a DNS plugin like `vagrant-hostmanager` and then just define actual DNS resolvable vagrant machine names in the inventory.
+
+Also may need to `$ chmod 0644 inventory` depending on how your cygwin fstab is setup, ansible may complain about +x permissions.
+
+**`playbook.yml`**
+
+```yaml
+---
+- hosts: all
+  tasks:
+  - debug: "msg='Hello Ansible from Vagrant'"
+```
+
+Lets run it:
+
+```sh
+$ vagrant up --no-provision
+
+Bringing machine 'default' up with 'virtualbox' provider...
+==> default: Importing base box 'hashicorp/precise64'...
+...
+==> default: Forwarding ports...
+    default: 22 (guest) => 2222 (host) (adapter 1)
+==> default: Booting VM...
+==> default: Waiting for machine to boot. This may take a few minutes...
+    default: SSH address: 127.0.0.1:2222
+...
+==> default: Machine booted and ready!
+```
+
+```sh
+$ vagrant provision
+==> default: Running provisioner: ansible...
+Windows is not officially supported for the Ansible Control Machine.
+Please check https://docs.ansible.com/intro_installation.html#control-machine-requirements
+    default: Running ansible-playbook...
+
+PLAY ***************************************************************************
+
+TASK [setup] *******************************************************************
+ok: [default]
+
+TASK [debug] *******************************************************************
+ok: [default] => {
+    "msg": "Hello Ansible from Vagrant"
+}
+
+PLAY RECAP *********************************************************************
+default                    : ok=2    changed=0    unreachable=0    failed=0
+```

ansible-playbook.bat

@@ -0,0 +1,53 @@
+@echo off
+
+REM If you used the stand Cygwin installer this will be C:\cygwin
+rem set CYGWIN=%USERPROFILE%\.babun\cygwin
+set CYGWIN=c:\cygwin
+rem set CYGWIN=C:\dev\apps\MobaXterm\mbx-root
+rem set CYGWIN=c:\dev\apps\babun\.babun\cygwin
+
+REM You can switch this to work with bash with %CYGWIN%\bin\bash.exe
+rem set SH=%CYGWIN%\bin\zsh.exe
+set SH=%CYGWIN%\bin\bash.exe
+
+rem cygwin
+set EXEC_ANSIBLE_PLAYBOOK=/usr/bin/ansible-playbook
+rem babun
+rem set EXEC_ANSIBLE_PLAYBOOK=/bin/ansible-playbook
+
+echo "----------------------------- " > c:\temp\vansible.log
+setlocal enabledelayedexpansion
+REM
+REM set argCount=0
+REM for %%x in (%*) do (
+REM    set /A argCount+=1
+REM    set "argVec[!argCount!]=%%~x"
+REM )
+REM
+REM echo Number of processed arguments: %argCount% >> c:\temp\vansible.log
+REM
+REM for /L %%i in (1,1,%argCount%) do (
+REM   echo %%i- !argVec[%%i]! >> c:\temp\vansible.log
+REM   echo "Arg is %%i !argVec[%%i]:~0,14!"
+REM   IF "!argVec[%%i]:~0,14!"=="--extra-vars='" (
+REM      echo yes---------------
+REM      echo !argVec[%%i]:~0,14!
+REM   )
+REM )
+
+REM set CMD_LINE_ARGS=
+REM set argCount=0
+REM :setArgs
+REM if ""%1""=="""" goto doneSetArgs
+REM set /A argCount+=1
+REM echo Add arg !argCount!: %1 >> c:\temp\vansible.log
+REM set CMD_LINE_ARGS=%CMD_LINE_ARGS% %1
+REM shift
+REM goto setArgs
+REM :doneSetArgs
+REM echo "CMD: %CMD_LINE_ARGS%"
+
+REM "%SH%" -c "%EXEC_ANSIBLE_PLAYBOOK% -vvvv %CMD_LINE_ARGS%"
+"%SH%" -c "%EXEC_ANSIBLE_PLAYBOOK% %*"
+
+rem c:\dev\apps\python\python-2.7.10\python.exe  C:\dev\apps\babun\.babun\cygwin\bin\ansible-playbook

ansible-playbook.go

@@ -0,0 +1,68 @@
+package main
+
+/*
+ * Addresses:
+ * Can be used in conjunction with below fix to start ansible with extra-vars parameter without falling over.
+ * https://github.com/mitchellh/vagrant/issues/6726
+ *
+ * References:
+ * http://nathanleclaire.com/blog/2014/12/29/shelled-out-commands-in-golang/
+ * http://www.darrencoxall.com/golang/executing-commands-in-go/
+ * https://groups.google.com/forum/#!msg/golang-nuts/cnG-N3KcoUU/4vR5MIuFDjYJ
+ *
+ */
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+)
+
+func main() {
+
+	var wrapperExecutableName = filepath.Base(os.Args[0])
+	var extension = filepath.Ext(wrapperExecutableName)
+	var executable = wrapperExecutableName[0 : len(wrapperExecutableName)-len(extension)]
+	//	pwd, err := os.Getwd()
+
+	args := make([]string, len(os.Args[1:])+1, len(os.Args[1:])+1)
+	args[0] = "/usr/bin/" + executable
+	for i, a := range os.Args[1:] {
+		// fmt.Printf("arg[%d] is: %s\n", i+1, a)
+		args[i+1] = a
+	}
+	cmd := exec.Command("c:\\cygwin\\bin\\bash.exe", "-c", strings.Join(args[:], " "))
+
+	cmdReader, err := cmd.StdoutPipe()
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "Error creating "+executable+" wrapper stdout pipeline", err)
+		os.Exit(1)
+	}
+
+	// echo stdin back to console
+	scanner := bufio.NewScanner(cmdReader)
+	go func() {
+		for scanner.Scan() {
+			fmt.Printf("%s\n", scanner.Text())
+		}
+	}()
+
+	err = cmd.Start()
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "Error starting "+executable+" wrapper", err)
+		os.Exit(1)
+	}
+
+	err = cmd.Wait()
+	if err != nil {
+		fmt.Fprintln(os.Stderr, "Error waiting for "+executable+" wrapper to finish", err)
+		os.Exit(1)
+	}
+
+	// all good can finish now
+	os.Exit(0)
+
+}