xapp_orchestrater/dev/xapp_onboarder/xapp_onboarder/api/endpoints/charts_ep.py

   1 ################################################################################
   2 #   Copyright (c) 2020 AT&T Intellectual Property.                             #
   3 #                                                                              #
   4 #   Licensed under the Apache License, Version 2.0 (the "License");            #
   5 #   you may not use this file except in compliance with the License.           #
   6 #   You may obtain a copy of the License at                                    #
   7 #                                                                              #
   8 #       http://www.apache.org/licenses/LICENSE-2.0                             #
   9 #                                                                              #
  10 #   Unless required by applicable law or agreed to in writing, software        #
  11 #   distributed under the License is distributed on an "AS IS" BASIS,          #
  12 #   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   #
  13 #   See the License for the specific language governing permissions and        #
  14 #   limitations under the License.                                             #
  15 ################################################################################
  16
  17 import logging
  18 from flask import make_response
  19 from flask_restplus import Resource
  20 from xapp_onboarder.api.api_reference import api
  21 from xapp_onboarder.api.charts import get_charts_list, download_chart_package, download_values_yaml
  22 from xapp_onboarder.api.models.response_models import error_message_model
  23
  24 log = logging.getLogger(__name__)
  25 ns = api.namespace('charts', description='Managing helm charts')
  26
  27
  28 @ns.route('')
  29 class ChartsList(Resource):
  30
  31     @api.response(200, 'Get helm chart list OK')
  32     @api.response(500, 'Get helm chart list failed', error_message_model)
  33     def get(self):
  34         """
  35         Returns the list of xApp helm charts that have been onboarded.
  36         """
  37
  38         return get_charts_list()
  39
  40
  41 @ns.route('/xapp/<string:xapp_chart_name>')
  42 class VersionList(Resource):
  43
  44     @api.response(200, 'Get helm chart OK')
  45     @api.response(500, 'Get helm chart failed', error_message_model)
  46     def get(self, xapp_chart_name):
  47         """
  48         Returns the helm chart for the specified xApp.
  49         """
  50         return get_charts_list(xapp_chart_name=xapp_chart_name)
  51
  52
  53 @ns.route('/xapp/<string:xapp_chart_name>/ver/<string:version>')
  54 class ChartsFetcher(Resource):
  55
  56     @api.response(200, 'Get helm chart package OK')
  57     @api.response(500, 'Get helm chart package failed', error_message_model)
  58     @api.produces(['application/gzip'])
  59     def get(self, xapp_chart_name, version):
  60         """
  61         Returns the helm chart for the specified xApp and version.
  62         """
  63
  64         content, status = download_chart_package(xapp_chart_name=xapp_chart_name, version=version)
  65
  66         if status != 200:
  67             return content, status
  68
  69         response = make_response(content)
  70         response.headers.set("Content-Type", "application/gzip")
  71         response.headers.set("Content-Disposition",
  72                              "attachment; filename=\"" + xapp_chart_name + "-" + version + ".tgz\"")
  73         return response
  74
  75
  76 @ns.route('/xapp/<string:xapp_chart_name>/ver/<string:version>/values.yaml')
  77 class ValuesYamlFetcher(Resource):
  78
  79     @api.response(200, 'Get helm chart values.yaml OK')
  80     @api.response(500, 'Get helm chart values.yaml failed', error_message_model)
  81     @api.produces(['text/x-yaml'])
  82     def get(self, xapp_chart_name, version):
  83         """
  84         Returns the helm values.yaml file of the specified xApp and version.
  85         """
  86
  87         content, status = download_values_yaml(xapp_chart_name=xapp_chart_name, version=version)
  88
  89         if status != 200:
  90             return content, status
  91
  92         response = make_response(content)
  93         response.headers.set("Content-Type", "text/x-yaml")
  94         response.headers.set("Content-Disposition", "attachment; filename=\"values.yaml\"")
  95
  96         return response