diff options
Diffstat (limited to 'charms/trusty/keepalived/hooks/charmhelpers/core/templating.py')
-rw-r--r-- | charms/trusty/keepalived/hooks/charmhelpers/core/templating.py | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/charms/trusty/keepalived/hooks/charmhelpers/core/templating.py b/charms/trusty/keepalived/hooks/charmhelpers/core/templating.py deleted file mode 100644 index 4531999..0000000 --- a/charms/trusty/keepalived/hooks/charmhelpers/core/templating.py +++ /dev/null @@ -1,68 +0,0 @@ -# Copyright 2014-2015 Canonical Limited. -# -# This file is part of charm-helpers. -# -# charm-helpers is free software: you can redistribute it and/or modify -# it under the terms of the GNU Lesser General Public License version 3 as -# published by the Free Software Foundation. -# -# charm-helpers is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU Lesser General Public License for more details. -# -# You should have received a copy of the GNU Lesser General Public License -# along with charm-helpers. If not, see <http://www.gnu.org/licenses/>. - -import os - -from charmhelpers.core import host -from charmhelpers.core import hookenv - - -def render(source, target, context, owner='root', group='root', - perms=0o444, templates_dir=None, encoding='UTF-8'): - """ - Render a template. - - The `source` path, if not absolute, is relative to the `templates_dir`. - - The `target` path should be absolute. - - The context should be a dict containing the values to be replaced in the - template. - - The `owner`, `group`, and `perms` options will be passed to `write_file`. - - If omitted, `templates_dir` defaults to the `templates` folder in the charm. - - Note: Using this requires python-jinja2; if it is not installed, calling - this will attempt to use charmhelpers.fetch.apt_install to install it. - """ - try: - from jinja2 import FileSystemLoader, Environment, exceptions - except ImportError: - try: - from charmhelpers.fetch import apt_install - except ImportError: - hookenv.log('Could not import jinja2, and could not import ' - 'charmhelpers.fetch to install it', - level=hookenv.ERROR) - raise - apt_install('python-jinja2', fatal=True) - from jinja2 import FileSystemLoader, Environment, exceptions - - if templates_dir is None: - templates_dir = os.path.join(hookenv.charm_dir(), 'templates') - loader = Environment(loader=FileSystemLoader(templates_dir)) - try: - source = source - template = loader.get_template(source) - except exceptions.TemplateNotFound as e: - hookenv.log('Could not load template %s from %s.' % - (source, templates_dir), - level=hookenv.ERROR) - raise e - content = template.render(context) - host.mkdir(os.path.dirname(target), owner, group, perms=0o755) - host.write_file(target, content.encode(encoding), owner, group, perms) |