Small helper script for usage with ansible-vault and ansible-playbook together with pass https://www.passwordstore.org/ Two implementations: first in bash and anotger one in python, which should be better as the git config hack to get ini files may fail due to incompatibilities in git vs. ansible ini style. The bash version is kept for reference.

ansible-vault-pass.bash

#!/usr/bin/env bash
set -e

#
# Written by Thomas Kerpe <toke@toke.de> - Public Domain
#
# Small helper script for usage with ansible-vault and ansible-playbook
# together with [pass](https://www.passwordstore.org/)
#
# Say you have stored the vault-password for the current ansible playbook in pass
# under the name `ansible/demo/vault` then either add a .pass_path file with the content
# `ansible/demo/vault` or add a entry in the ansible.cfg:
# ```
# [pass]
# vault=ansible/demo/vault
# ```
# Now you can call ansible-vault-pass to get the password for the vault. It is especially useful
# like this:
# `ansible-playbook site.yml --vault-password-file ~/bin/ansible-vault-pass`
# or `ansible-vault edit --vault-password-file ~/bin/ansible-vault-pass example.yml`
# Even more practical: `export ANSIBLE_VAULT_PASSWORD_FILE=~/bin/ansible-vault-pass` then it will
# be used by default without specifying it.


if [ -e .pass_path ] ; then
    p=$(cat .pass_path)
elif [ -e ansible.cfg ] ; then
    p=$(git config -f ansible.cfg --get pass.vault)
else
    exit 0
fi

if [ ! -z "$p" ] ; then
    exec pass "$p"
else
    exit 1
fi

ansible-vault-pass.py

#!/usr/bin/env python2
"""
ansible_vault_pass

A small helper script for usage with ansible-vault and ansible-playbook
together with pass.

Written by Thomas Kerpe <toke@toke.de> - Public Domain

Say you have stored the vault-password for the current ansible playbook in pass
under the name ansible/demo/vault then either add a .pass_path file with the content
ansible/demo/vault or add a entry in the ansible.cfg:

    [pass]
    vault=ansible/demo/vault

Now you can call ansible-vault-pass to get the password for the vault.
It is especially useful like this:

    ansible-playbook site.yml --vault-password-file ~/bin/ansible-vault-pass

or

    ansible-vault edit --vault-password-file ~/bin/ansible-vault-pass example.yml

Even more practical: 

    export ANSIBLE_VAULT_PASSWORD_FILE=~/bin/ansible-vault-pass

then it will be used by default without specifying it. It is also useful in CI environments.

Source: https://gist.github.com/toke/ebc49b7dd08d7b87e23921029176d3f5
"""

import os.path
import subprocess
import ansible.constants
from ConfigParser import NoOptionError, NoSectionError


def get_vault_password():
    """
    The magic happenz
    """

    pass_name = ""

    if os.path.isfile(".pass_path"):
        with open(".pass_path") as f:
            pass_name = f.read()
    elif ansible.constants.CONFIG_FILE:
        try:
            pass_name = ansible.constants.p.get("pass", "vault")
        except NoOptionError:
            pass
        except NoSectionError:
            pass
    else:
        pass

    if pass_name:
        c = subprocess.call(["pass", pass_name])
        exit(c)

if __name__ == '__main__':
    get_vault_password()