Get the default keychain

    user
        The user to check the default keychain of

    domain
        The domain to use valid values are user|system|common|dynamic, the default is user

    CLI Example:

    .. code-block:: bash

        salt '*' keychain.get_default_keychain

def get_default_keychain(user=None, domain="user"):
    '''
    Get the default keychain

    user
        The user to check the default keychain of

    domain
        The domain to use valid values are user|system|common|dynamic, the default is user

    CLI Example:

    .. code-block:: bash

        salt '*' keychain.get_default_keychain
    '''
    cmd = "security default-keychain -d {0}".format(domain)
    return __salt__['cmd.run'](cmd, runas=user)