diff options
Diffstat (limited to 'lookup_plugins')
-rw-r--r-- | lookup_plugins/oo_option.py | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/lookup_plugins/oo_option.py b/lookup_plugins/oo_option.py new file mode 100644 index 000000000..35dce48f9 --- /dev/null +++ b/lookup_plugins/oo_option.py @@ -0,0 +1,73 @@ +#!/usr/bin/env python2 +# -*- coding: utf-8 -*- +# vim: expandtab:tabstop=4:shiftwidth=4 + +''' +oo_option lookup plugin for openshift-ansible + +Usage: + + - debug: + msg: "{{ lookup('oo_option', '<key>') | default('<default_value>', True) }}" + +This returns, by order of priority: + +* if it exists, the `cli_<key>` ansible variable. This variable is set by `bin/cluster --option <key>=<value> …` +* if it exists, the envirnoment variable named `<key>` +* if none of the above conditions are met, empty string is returned +''' + +from ansible.utils import template +import os + +# Reason: disable too-few-public-methods because the `run` method is the only +# one required by the Ansible API +# Status: permanently disabled +# pylint: disable=too-few-public-methods +class LookupModule(object): + ''' oo_option lookup plugin main class ''' + + # Reason: disable unused-argument because Ansible is calling us with many + # parameters we are not interested in. + # The lookup plugins of Ansible have this kwargs “catch-all” parameter + # which is not used + # Status: permanently disabled unless Ansible API evolves + # pylint: disable=unused-argument + def __init__(self, basedir=None, **kwargs): + ''' Constructor ''' + self.basedir = basedir + + # Reason: disable unused-argument because Ansible is calling us with many + # parameters we are not interested in. + # The lookup plugins of Ansible have this kwargs “catch-all” parameter + # which is not used + # Status: permanently disabled unless Ansible API evolves + # pylint: disable=unused-argument + def run(self, terms, inject=None, **kwargs): + ''' Main execution path ''' + + try: + terms = template.template(self.basedir, terms, inject) + # Reason: disable broad-except to really ignore any potential exception + # This is inspired by the upstream "env" lookup plugin: + # https://github.com/ansible/ansible/blob/devel/v1/ansible/runner/lookup_plugins/env.py#L29 + # pylint: disable=broad-except + except Exception: + pass + + if isinstance(terms, basestring): + terms = [terms] + + ret = [] + + for term in terms: + option_name = term.split()[0] + cli_key = 'cli_' + option_name + if inject and cli_key in inject: + ret.append(inject[cli_key]) + elif option_name in os.environ: + ret.append(os.environ[option_name]) + else: + ret.append('') + + return ret |