Packer Ansible-from-git-checkout Provisioner

gistfile1.sh

### *** Contains some Ubuntu-specific commands/packages. Modify accordingly. ***


###
# scripts/ansible.sh
###

#!/usr/bin/env bash

# Ansible dependencies
# This can be put in preseed.cfg as well
apt-get install git python-jinja2 python-paramiko python-yaml python-httplib2

mkdir -p /tmp/ansible/repo/

git clone https://github.com/ansible/ansible.git /tmp/ansible/git/
cd /tmp/ansible/git/
source ./hacking/env-setup

# Specify branch
git checkout devel

chmod +x /tmp/ssh-git.sh
export GIT_SSH="/tmp/ssh-git.sh"
export GIT_KEY="/tmp/github.rsa"

git clone ssh://git@github.com/GITHUB_REPO /tmp/ansible/repo/
cd /tmp/ansible/repo/
ansible-playbook --connection=local -i INVENTORY_FILE PLAYBOOK

# # Cleanup
rm -rf /tmp/ansible/
rm /tmp/ssh-git.sh
rm /tmp/github.rsa


###
# files/ssh-git.sh
###

#!/usr/bin/env sh

if [ -z "$GIT_KEY" ]; then
    # if GIT_KEY is not specified, run ssh using default keyfile
    ssh -o StrictHostKeyChecking=no -o PasswordAuthentication=no -o KbdInteractiveAuthentication=no -o ChallengeResponseAuthentication=no "$@"
else
    ssh -i "$GIT_KEY" -o StrictHostKeyChecking=no -o PasswordAuthentication=no -o KbdInteractiveAuthentication=no -o ChallengeResponseAuthentication=no "$@"
fi

###
# files/github.rsa
###

-----BEGIN RSA PRIVATE KEY-----
YOUR_PRIVATE_KEY
-----END RSA PRIVATE KEY-----

###
# template.json
###

...
    {
      "type": "file",
      "source": "files/github.rsa",
      "destination": "/tmp/github.rsa"
    },
    {
      "type": "file",
      "source": "files/ssh-git.sh",
      "destination": "/tmp/ssh-git.sh"
    },
    {
      "execute_command": "echo 'vagrant' | {{.Vars}} sudo -S -E bash '{{.Path}}'",
      "scripts": [
        "scripts/ansible.sh"
      ],
      "type": "shell"
    },
...


###
# Notes
###

You can also skip the git checkout and install from local source (example with ansible files in ./ansible_files) by:

"First, the destination directory must already exist. If you need to create it, use a shell provisioner just prior to the file provisioner in order to create the directory."
Source: From http://www.packer.io/docs/provisioners/file.html

...
    {
      "execute_command": "echo 'vagrant' | {{.Vars}} sudo -S -E bash '{{.Path}}'",
      "inline": [
        "mkdir -p /tmp/ansible/repo"
      ],
      "type": "shell"
    },
    {
      "type": "file",
      "source": "ansible_files/",
      "destination": "/tmp/ansible/repo"
    },
...
    
You could then remove the "*ssh-git.sh" , "*github.rsa" , "git clone ssh://git@github.com/GITHUB_REPO /tmp/ansible/repo/" sections from above

Thanks! You save my night migrating our servers provisioning to Packer with BASH