utils.py 文件源码

def render_jinja(dict_, template_str):
        """Render dict onto jinja template and return the string result"""
        name = 'jvars'
        j2env = jinja2.Environment(
            loader=jinja2.DictLoader({
                name: template_str
            }),
            undefined=jinja2.StrictUndefined,
            extensions=["jinja2.ext.do"])

        # Add some custom jinja filters
        j2env.filters['bool'] = TypeUtils.str_to_bool
        j2env.filters['yaml'] = YamlUtils.yaml_dict_to_string
        j2env.filters['base64encode'] = base64.b64encode

        # Add a "raise" keyword for raising exceptions from within jinja
        j2env.globals['raise'] = JinjaUtils._jinja_keyword_raise
        j2env.globals['gen_names'] = JinjaUtils._jinja_keyword_gen_names
        j2env.globals['mkpass'] = JinjaUtils.mkpass
        j2env.globals['keygen'] = JinjaUtils.keygen
        j2env.globals['self_signed_cert_gen'] = JinjaUtils.self_signed_cert_gen
        j2env.globals['ceph_key'] = JinjaUtils.ceph_key
        j2env.globals['uuid'] = JinjaUtils.uuid

        # Render the template
        rendered_template = j2env.get_template(name).render(dict_)
        return rendered_template + "\n"