adapters/mso-openstack-adapters/src/main/java/org/onap/so/adapters/audit/HeatStackAudit.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.so.adapters.audit;
  22
  23 import java.net.URI;
  24 import java.util.HashSet;
  25 import java.util.List;
  26 import java.util.Optional;
  27 import java.util.Set;
  28 import java.util.regex.Matcher;
  29 import java.util.regex.Pattern;
  30 import java.util.stream.Collectors;
  31 import java.util.stream.Stream;
  32
  33 import org.onap.aai.domain.yang.LInterface;
  34 import org.onap.aai.domain.yang.LInterfaces;
  35 import org.onap.aai.domain.yang.Vserver;
  36 import org.onap.so.openstack.utils.MsoHeatUtils;
  37 import org.slf4j.Logger;
  38 import org.slf4j.LoggerFactory;
  39 import org.springframework.beans.factory.annotation.Autowired;
  40 import org.springframework.stereotype.Component;
  41
  42 import com.woorea.openstack.heat.model.Link;
  43 import com.woorea.openstack.heat.model.Resource;
  44 import com.woorea.openstack.heat.model.Resources;
  45 import com.woorea.openstack.heat.model.Stack;
  46
  47 @Component
  48 public class HeatStackAudit {
  49
  50         private static final String RESOURCES = "/resources";
  51
  52         protected static final Logger logger = LoggerFactory.getLogger(HeatStackAudit.class);
  53
  54         @Autowired
  55         protected MsoHeatUtils heat;
  56
  57         @Autowired
  58         protected AuditVServer auditVservers;
  59
  60         public boolean auditHeatStack(String cloudRegion, String cloudOwner, String tenantId, String heatStackName) {
  61                 try {
  62                         logger.debug("Fetching Top Level Stack Information");
  63                         Resources resources = heat.queryStackResources(cloudRegion, tenantId, heatStackName);
  64                         List<Resource> novaResources = resources.getList().stream()
  65                                         .filter(p -> "OS::Nova::Server".equals(p.getType())).collect(Collectors.toList());
  66                         List<Resource> resourceGroups = resources.getList().stream()
  67                                         .filter(p -> "OS::Heat::ResourceGroup".equals(p.getType()) && p.getName().contains("subinterfaces")).collect(Collectors.toList());
  68                         if(novaResources.isEmpty())
  69                                 return true;
  70                         else{
  71                                 Set<Vserver> vserversToAudit = createVserverSet(resources, novaResources);
  72                                 Set<Vserver> vserversWithSubInterfaces = processSubInterfaces(cloudRegion, tenantId, resourceGroups,
  73                                         vserversToAudit);
  74                                 return auditVservers.auditVservers(vserversWithSubInterfaces, tenantId, cloudOwner, cloudRegion);
  75                         }
  76                 } catch (Exception e) {
  77                         logger.error("Error during auditing stack resources", e);
  78                         return false;
  79                 }
  80         }
  81
  82         protected Set<Vserver> processSubInterfaces(String cloudRegion, String tenantId, List<Resource> resourceGroups,
  83                         Set<Vserver> vServersToAudit) throws Exception {
  84                 for (Resource resourceGroup : resourceGroups) {
  85                         processResourceGroups(cloudRegion, tenantId, vServersToAudit, resourceGroup);
  86                 }
  87                 return vServersToAudit;
  88         }
  89
  90         protected void processResourceGroups(String cloudRegion, String tenantId, Set<Vserver> vServersWithLInterface,
  91                         Resource resourceGroup) throws Exception {
  92                 Optional<Link> stackLink = resourceGroup.getLinks().stream().filter(link -> "nested".equals(link.getRel()))
  93                                 .findAny();
  94                 if (stackLink.isPresent()) {
  95                         try {
  96                                 Optional<String> path = extractResourcePathFromHref(stackLink.get().getHref());
  97                                 if (path.isPresent()) {
  98                                         logger.debug("Fetching nested Resource Stack Information");
  99                                         Resources nestedResourceGroupResources = heat.executeHeatClientRequest(path.get(), cloudRegion,
 100                                                         tenantId, Resources.class);
 101                                         processNestedResourceGroup(cloudRegion, tenantId, vServersWithLInterface,
 102                                                         nestedResourceGroupResources);
 103                                 } else
 104                                         throw new Exception("Error finding Path from Self Link");
 105                         } catch (Exception e) {
 106                                 logger.error("Error Parsing Link to obtain Path", e);
 107                                 throw new Exception("Error finding Path from Self Link");
 108                         }
 109
 110                 }
 111         }
 112
 113         protected void processNestedResourceGroup(String cloudRegion, String tenantId, Set<Vserver> vServersWithLInterface,
 114                         Resources nestedResourceGroupResources) throws Exception {
 115                 for (Resource resourceGroupNested : nestedResourceGroupResources) {
 116                         Optional<Link> subInterfaceStackLink = resourceGroupNested.getLinks().stream()
 117                                         .filter(link -> "nested".equals(link.getRel())).findAny();
 118                         if (subInterfaceStackLink.isPresent()) {
 119                                 addSubInterface(cloudRegion, tenantId, vServersWithLInterface,subInterfaceStackLink.get());
 120                         }
 121                 }
 122         }
 123
 124         protected void addSubInterface(String cloudRegion, String tenantId, Set<Vserver> vServersWithLInterface, Link subInterfaceStackLink) throws Exception {
 125                         Optional<String> resourcePath = extractResourcePathFromHref(subInterfaceStackLink.getHref());
 126                         Optional<String> stackPath = extractStackPathFromHref(subInterfaceStackLink.getHref());
 127                         if (resourcePath.isPresent() && stackPath.isPresent()) {
 128                                 logger.debug("Fetching nested Sub-Interface Stack Information");
 129                                 Stack subinterfaceStack = heat.executeHeatClientRequest(stackPath.get(), cloudRegion, tenantId, Stack.class);
 130                                 Resources subinterfaceResources = heat.executeHeatClientRequest(resourcePath.get(), cloudRegion, tenantId, Resources.class);
 131                                 if (subinterfaceStack != null) {
 132                                         addSubInterfaceToVserver(vServersWithLInterface, subinterfaceStack, subinterfaceResources);
 133                                 }
 134                         } else
 135                                 throw new Exception("Error finding Path from Self Link");
 136
 137         }
 138
 139         protected void addSubInterfaceToVserver(Set<Vserver> vServersWithLInterface, Stack subinterfaceStack, Resources subinterfaceResources) throws Exception {
 140                 String parentNeutronPortId = (String) subinterfaceStack.getParameters().get("port_interface");
 141                 logger.debug("Parent neutron Port: {} on SubInterface: {}", parentNeutronPortId, subinterfaceStack.getId());
 142                 for (Vserver auditVserver : vServersWithLInterface)
 143                         for (LInterface lInterface : auditVserver.getLInterfaces().getLInterface())
 144
 145                                 if (parentNeutronPortId.equals(lInterface.getInterfaceId())) {
 146                                         logger.debug("Found Parent Port on VServer: {} on Port: {}", auditVserver.getVserverId(), lInterface.getInterfaceId());
 147                                         Resource contrailVm = subinterfaceResources.getList().stream().filter(resource -> "OS::ContrailV2::VirtualMachineInterface".equals(resource.getType())).findAny()
 148                         .orElse(null);
 149                                         if(contrailVm == null){
 150                                                 throw new Exception("Cannnot find Contrail Virtual Machine Interface on Stack: "+ subinterfaceStack.getId());
 151                                         }
 152                                         LInterface subInterface = new LInterface();
 153                                         subInterface.setInterfaceId(contrailVm.getPhysicalResourceId());
 154
 155                                         if(lInterface.getLInterfaces() == null)
 156                                                 lInterface.setLInterfaces(new LInterfaces());
 157
 158                                         lInterface.getLInterfaces().getLInterface().add(subInterface);
 159                                 }else
 160                                         logger.debug("Did Not Find Parent Port on VServer: {} Parent Port: SubInterface: {}",auditVserver.getVserverId(),
 161                                                         lInterface.getInterfaceId(),subinterfaceStack.getId());
 162         }
 163
 164         protected Set<Vserver> createVserverSet(Resources resources, List<Resource> novaResources) {
 165                 Set<Vserver> vserversToAudit = new HashSet<>();
 166                 for (Resource novaResource : novaResources) {
 167                         Vserver auditVserver = new Vserver();
 168                         auditVserver.setLInterfaces(new LInterfaces());
 169                         auditVserver.setVserverId(novaResource.getPhysicalResourceId());
 170                         Stream<Resource> filteredNeutronNetworks = resources.getList().stream()
 171                                         .filter(resource -> resource.getRequiredBy().contains(novaResource.getLogicalResourceId()))
 172                                         .filter(resource -> "OS::Neutron::Port".equals(resource.getType()));
 173                         filteredNeutronNetworks.forEach(network -> {
 174                                 LInterface lInterface = new LInterface();
 175                                 lInterface.setInterfaceId(network.getPhysicalResourceId());
 176                                 auditVserver.getLInterfaces().getLInterface().add(lInterface);
 177                         });
 178                         vserversToAudit.add(auditVserver);
 179                 }
 180                 return vserversToAudit;
 181         }
 182
 183         protected Optional<String> extractResourcePathFromHref(String href) {
 184                 try {
 185                         Optional<String> stackPath = extractStackPathFromHref(href);
 186                         if (stackPath.isPresent()){
 187                                 return Optional.of(stackPath.get()+RESOURCES);
 188                         }else
 189                                 return Optional.empty();
 190                 } catch (Exception e) {
 191                         logger.error("Error parsing URI", e);
 192                 }
 193                 return Optional.empty();
 194         }
 195
 196         protected Optional<String> extractStackPathFromHref(String href) {
 197                 try {
 198                         URI uri = new URI(href);
 199                         Pattern p = Pattern.compile("/stacks.*");
 200                         Matcher m = p.matcher(uri.getPath());
 201                         if (m.find()){
 202                                 return Optional.of(m.group());
 203                         }else
 204                                 return Optional.empty();
 205                 } catch (Exception e) {
 206                         logger.error("Error parsing URI", e);
 207                 }
 208                 return Optional.empty();
 209         }
 210
 211
 212 }