111 lines
4.5 KiB
Python
111 lines
4.5 KiB
Python
# Copyright 2019 AT&T Intellectual Property. All other rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import os
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import shutil
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import jinja2
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from spyglass.data_extractor.models import site_document_data_factory
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from spyglass.data_extractor.models import SiteDocumentData
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from spyglass.site_processors.base import BaseProcessor
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LOG = logging.getLogger(__name__)
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class SiteProcessor(BaseProcessor):
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def __init__(self, site_data, manifest_dir, force_write):
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super().__init__()
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if isinstance(site_data, SiteDocumentData):
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self.site_data = site_data
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else:
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self.site_data = site_document_data_factory(site_data)
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self.manifest_dir = manifest_dir
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self.force_write = force_write
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def render_template(self, template_dir):
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"""The method renders network config yaml from j2 templates.
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Network configs common to all racks (i.e oam, overlay, storage,
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calico) are generated in a single file. Rack specific
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configs( pxe and oob) are generated per rack.
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"""
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# Check if manifest_dir exists
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if self.manifest_dir is not None:
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site_manifest_dir = os.path.join(
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self.manifest_dir, 'pegleg_manifests', 'site')
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else:
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site_manifest_dir = os.path.join('pegleg_manifests', 'site')
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LOG.info("Site manifest output dir:{}".format(site_manifest_dir))
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LOG.debug("Template Path: %s", template_dir)
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if self.force_write:
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logging_undefined = \
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jinja2.make_logging_undefined(LOG, base=jinja2.Undefined)
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else:
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logging_undefined = \
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jinja2.make_logging_undefined(LOG, base=jinja2.StrictUndefined)
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template_folder_name = os.path.split(template_dir)[1]
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created_file_list = []
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created_dir_list = []
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for dirpath, dirs, files in os.walk(template_dir):
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loader = jinja2.FileSystemLoader(dirpath)
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for filename in files:
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j2_env = jinja2.Environment(
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autoescape=True,
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loader=loader,
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trim_blocks=True,
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lstrip_blocks=True,
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undefined=logging_undefined)
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templatefile = os.path.join(dirpath, filename)
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LOG.debug("Template file: %s", templatefile)
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outdirs = dirpath.split(template_folder_name)[1].lstrip(os.sep)
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LOG.debug("outdirs: %s", outdirs)
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outfile_path = os.path.join(
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site_manifest_dir, self.site_data.site_info.region_name,
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outdirs)
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LOG.debug("outfile path: %s", outfile_path)
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outfile_yaml = os.path.split(templatefile)[1]
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outfile_yaml = os.path.splitext(outfile_yaml)[0]
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outfile = os.path.join(outfile_path, outfile_yaml)
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LOG.debug("outfile: %s", outfile)
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outfile_dir = os.path.dirname(outfile)
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if not os.path.exists(outfile_dir):
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os.makedirs(outfile_dir)
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created_dir_list.append(outfile_dir)
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template_j2 = j2_env.get_template(filename)
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try:
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out = open(outfile, "w")
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created_file_list.append(outfile)
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LOG.info("Rendering {}".format(outfile_yaml))
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rendered = template_j2.render(data=self.site_data)
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out.write(rendered)
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out.close()
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except IOError as ioe:
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LOG.error(
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"IOError during rendering:{}".format(outfile_yaml))
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raise SystemExit(
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"Error when generating {:s}:\n{:s}".format(
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outfile, ioe.strerror))
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except jinja2.UndefinedError as e:
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LOG.info('Undefined data found, rolling back changes...')
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out.close()
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shutil.rmtree(site_manifest_dir)
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raise e
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