2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * ================================================================================
9 * Modifications Copyright (C) 2019 Ericsson
10 * =============================================================================
11 * Licensed under the Apache License, Version 2.0 (the "License");
12 * you may not use this file except in compliance with the License.
13 * You may obtain a copy of the License at
15 * http://www.apache.org/licenses/LICENSE-2.0
17 * Unless required by applicable law or agreed to in writing, software
18 * distributed under the License is distributed on an "AS IS" BASIS,
19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20 * See the License for the specific language governing permissions and
21 * limitations under the License.
23 * ============LICENSE_END=========================================================
26 package org.onap.appc.adapter.iaas.provider.operation.impl;
28 import org.onap.appc.Constants;
29 import org.onap.appc.adapter.iaas.ProviderAdapter;
30 import org.onap.appc.adapter.iaas.impl.IdentityURL;
31 import org.onap.appc.adapter.iaas.impl.ProviderAdapterImpl;
32 import org.onap.appc.adapter.iaas.impl.RequestContext;
33 import org.onap.appc.adapter.iaas.impl.RequestFailedException;
34 import org.onap.appc.adapter.iaas.impl.VMURL;
35 import org.onap.appc.adapter.iaas.provider.operation.common.enums.Operation;
36 import org.onap.appc.adapter.iaas.provider.operation.impl.base.ProviderServerOperation;
37 import org.onap.appc.configuration.Configuration;
38 import org.onap.appc.configuration.ConfigurationFactory;
39 import org.onap.appc.exceptions.APPCException;
40 import org.onap.appc.i18n.Msg;
41 import org.onap.appc.logging.LoggingConstants;
42 import org.onap.appc.logging.LoggingUtils;
43 import com.att.cdp.exceptions.ContextConnectionException;
44 import com.att.cdp.exceptions.ResourceNotFoundException;
45 import com.att.cdp.exceptions.ZoneException;
46 import com.att.cdp.zones.ComputeService;
47 import com.att.cdp.zones.Context;
48 import com.att.cdp.zones.Provider;
49 import com.att.cdp.zones.model.Hypervisor;
50 import com.att.cdp.zones.model.Hypervisor.Status;
51 import com.att.cdp.zones.model.Hypervisor.State;
52 import com.att.cdp.zones.model.Image;
53 import com.att.cdp.zones.model.ModelObject;
54 import com.att.cdp.zones.model.Server;
55 import com.att.eelf.configuration.EELFLogger;
56 import com.att.eelf.configuration.EELFManager;
57 import com.att.eelf.i18n.EELFResourceManager;
58 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
59 import org.glassfish.grizzly.http.util.HttpStatus;
61 import java.io.IOException;
62 import java.util.Arrays;
63 import java.util.Date;
64 import java.util.List;
66 import static org.onap.appc.adapter.utils.Constants.ADAPTER_NAME;
68 public class EvacuateServer extends ProviderServerOperation {
70 private static final String EVACUATE_STATUS = "EVACUATE_STATUS";
71 private static final String EVACUATE_SERVER = "Evacuate Server";
73 private static final EELFLogger logger = EELFManager.getInstance().getLogger(EvacuateServer.class);
74 private static EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
75 private static final Configuration configuration = ConfigurationFactory.getConfiguration();
76 private ProviderAdapterImpl paImpl = null;
78 private void evacuateServer(RequestContext rc, @SuppressWarnings("unused") Server server, String targetHost)
79 throws ZoneException, RequestFailedException {
80 Context ctx = server.getContext();
81 Provider provider = ctx.getProvider();
82 ComputeService service = ctx.getComputeService();
84 * Pending is a bit of a special case. If we find the server is in a pending
85 * state, then the provider is in the process of changing state of the server.
86 * So, lets try to wait a little bit and see if the state settles down to one we
87 * can deal with. If not, then we have to fail the request.
90 if (server.getStatus().equals(Server.Status.PENDING)) {
91 waitForStateChange(rc, server, Server.Status.READY, Server.Status.RUNNING, Server.Status.ERROR,
92 Server.Status.SUSPENDED, Server.Status.PAUSED);
94 } catch (RequestFailedException e) {
95 // evacuate is a special case. If the server is still in a Pending state, we
97 // continue with evacuate
98 logger.info("Evacuate server - ignore RequestFailedException from waitForStateChange() ...", e);
100 setTimeForMetricsLogger();
103 evacuateServerNested(rc, service, server, provider, targetHost);
104 } catch (ZoneException e) {
105 msg = EELFResourceManager.format(Msg.EVACUATE_SERVER_FAILED, server.getName(), server.getId(),
107 logger.error(msg, e);
108 metricsLogger.error(msg);
109 throw new RequestFailedException(EVACUATE_SERVER, msg, HttpStatus.BAD_GATEWAY_502, server);
112 msg = EELFResourceManager.format(Msg.CONNECTION_FAILED, provider.getName(), service.getURL());
114 metricsLogger.error(msg);
115 throw new RequestFailedException(EVACUATE_SERVER, msg, HttpStatus.BAD_GATEWAY_502, server);
120 private void evacuateServerNested(RequestContext rcCtx, ComputeService svc, Server server, Provider provider,
121 String targetHost) throws ZoneException, RequestFailedException {
123 Context ctx = server.getContext();
124 while (rcCtx.attempt()) {
126 logger.debug("Calling CDP moveServer - server id = " + server.getId());
127 svc.moveServer(server.getId(), targetHost);
128 // Wait for completion, expecting the server to go to a non pending state
129 waitForStateChange(rcCtx, server, Server.Status.READY, Server.Status.RUNNING, Server.Status.ERROR,
130 Server.Status.SUSPENDED, Server.Status.PAUSED);
132 } catch (ContextConnectionException e) {
133 msg = EELFResourceManager.format(Msg.CONNECTION_FAILED_RETRY, provider.getName(), svc.getURL(),
134 ctx.getTenant().getName(), ctx.getTenant().getId(), e.getMessage(),
135 Long.toString(rcCtx.getRetryDelay()), Integer.toString(rcCtx.getAttempts()),
136 Integer.toString(rcCtx.getRetryLimit()));
137 logger.error(msg, e);
138 metricsLogger.error(msg, e);
145 * @see org.onap.appc.adapter.iaas.ProviderAdapter#evacuateServer(java.util.Map,
146 * org.onap.ccsdk.sli.core.sli.SvcLogicContext)
148 private Server evacuateServer(Map<String, String> params, SvcLogicContext ctx) throws APPCException {
149 Server server = null;
150 RequestContext rc = new RequestContext(ctx);
152 setTimeForMetricsLogger();
154 ctx.setAttribute(EVACUATE_STATUS, "ERROR");
156 validateParametersExist(params, ProviderAdapter.PROPERTY_INSTANCE_URL,
157 ProviderAdapter.PROPERTY_PROVIDER_NAME);
159 String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
160 String vmUrl = params.get(ProviderAdapter.PROPERTY_INSTANCE_URL);
161 VMURL vm = VMURL.parseURL(vmUrl);
162 if (validateVM(rc, appName, vmUrl, vm)) {
165 server = evacuateServerMapNestedFirst(params, server, rc, ctx, vm, vmUrl);
166 } catch (RequestFailedException e) {
167 msg = EELFResourceManager.format(Msg.EVACUATE_SERVER_FAILED, "n/a", "n/a", e.getMessage());
168 logger.error(msg, e);
169 metricsLogger.error(msg);
170 doFailure(rc, e.getStatus(), e.getMessage());
175 private Server evacuateServerMapNestedFirst(Map<String, String> params, Server server, RequestContext rqstCtx,
176 SvcLogicContext ctx, VMURL vm, String vmUrl) throws APPCException {
179 IdentityURL ident = IdentityURL.parseURL(params.get(ProviderAdapter.PROPERTY_IDENTITY_URL));
180 String identStr = (ident == null) ? null : ident.toString();
181 // retrieve the optional parameters
182 String rebuildVm = params.get(ProviderAdapter.PROPERTY_REBUILD_VM);
183 String targetHostId = params.get(ProviderAdapter.PROPERTY_TARGETHOST_ID);
184 String tenantName = "Unknown";// to be used also in case of exception
186 context = getContext(rqstCtx, vmUrl, identStr);
187 if (context != null) {
188 tenantName = context.getTenantName();// this variable also is used in case of exception
189 server = lookupServer(rqstCtx, context, vm.getServerId());
190 logger.debug(Msg.SERVER_FOUND, vmUrl, tenantName, server.getStatus().toString());
191 // check target host status
192 checkHostStatus(server, targetHostId, context);
193 // save hypervisor name before evacuate
194 String hypervisor = server.getHypervisor().getHostName();
195 evacuateServer(rqstCtx, server, targetHostId);
197 String hypervisorAfterEvacuate = server.getHypervisor().getHostName();
199 "Hostname before evacuate: " + hypervisor + ", After evacuate: " + hypervisorAfterEvacuate);
200 // check hypervisor host name after evacuate. If it is unchanged, the evacuate
202 checkHypervisor(server, hypervisor, hypervisorAfterEvacuate);
203 // check VM status after evacuate
207 ctx.setAttribute(EVACUATE_STATUS, "SUCCESS");
208 // If a snapshot exists, do a rebuild to apply the latest snapshot to the
210 // This is the default behavior unless the optional parameter is set to FALSE.
211 if (rebuildVm == null || !"false".equalsIgnoreCase(rebuildVm)) {
212 List<Image> snapshots = server.getSnapshots();
213 if (snapshots == null || snapshots.isEmpty()) {
214 logger.debug("No snapshots available - skipping rebuild after evacuate");
215 } else if (paImpl != null) {
216 logger.debug("Executing a rebuild after evacuate");
217 paImpl.rebuildServer(params, ctx);
218 // Check error code for rebuild errors. Evacuate had set it to 200 after
219 // a successful evacuate. Rebuild updates the error code.
220 evacuateServerMapNestedSecond(server, rqstCtx, ctx, hypervisor, hypervisorAfterEvacuate);
224 } catch (ResourceNotFoundException e) {
225 msg = EELFResourceManager.format(Msg.SERVER_NOT_FOUND, e, vmUrl);
227 metricsLogger.error(msg);
228 doFailure(rqstCtx, HttpStatus.NOT_FOUND_404, msg);
229 } catch (RequestFailedException e) {
230 logger.error("Request failed", e);
231 doFailure(rqstCtx, e.getStatus(), e.getMessage());
232 } catch (IOException | ZoneException e1) {
233 msg = EELFResourceManager.format(Msg.SERVER_OPERATION_EXCEPTION, e1, e1.getClass().getSimpleName(),
234 Operation.EVACUATE_SERVICE.toString(), vmUrl, tenantName);
235 logger.error(msg, e1);
236 metricsLogger.error(msg, e1);
237 doFailure(rqstCtx, HttpStatus.INTERNAL_SERVER_ERROR_500, e1.getMessage());
238 } catch (Exception e1) {
239 msg = EELFResourceManager.format(Msg.SERVER_OPERATION_EXCEPTION, e1, e1.getClass().getSimpleName(),
240 Operation.EVACUATE_SERVICE.toString(), vmUrl, tenantName);
241 logger.error(msg, e1);
242 metricsLogger.error(msg);
243 doFailure(rqstCtx, HttpStatus.INTERNAL_SERVER_ERROR_500, e1.getMessage());
248 private void evacuateServerMapNestedSecond(Server server, RequestContext rc, SvcLogicContext ctx, String hypervisor,
249 String hypervisorAfterEvacuate) {
251 String rebuildErrorCode = ctx.getAttribute(org.onap.appc.Constants.ATTRIBUTE_ERROR_CODE);
252 if (rebuildErrorCode != null) {
254 int errorCode = Integer.parseInt(rebuildErrorCode);
255 if (errorCode != HttpStatus.OK_200.getStatusCode()) {
256 logger.debug("Rebuild after evacuate failed - error code=" + errorCode + ", message="
257 + ctx.getAttribute(org.onap.appc.Constants.ATTRIBUTE_ERROR_MESSAGE));
258 msg = EELFResourceManager.format(Msg.EVACUATE_SERVER_REBUILD_FAILED, server.getName(), hypervisor,
259 hypervisorAfterEvacuate, ctx.getAttribute(org.onap.appc.Constants.ATTRIBUTE_ERROR_MESSAGE));
261 metricsLogger.error(msg);
262 ctx.setAttribute(EVACUATE_STATUS, "ERROR");
263 // update error message while keeping the error code the
265 doFailure(rc, HttpStatus.getHttpStatus(errorCode), msg);
267 } catch (NumberFormatException e) {
273 private void checkHostStatus(Server server, String targetHostId, Context context)
274 throws ZoneException, RequestFailedException {
275 if (isComputeNodeDown(context, targetHostId)) {
276 String msg = EELFResourceManager.format(Msg.EVACUATE_SERVER_FAILED, server.getName(), server.getId(),
277 "Target host " + targetHostId + " status is not UP/ENABLED");
279 metricsLogger.error(msg);
280 throw new RequestFailedException(EVACUATE_SERVER, msg, HttpStatus.BAD_REQUEST_400, server);
284 private void checkHypervisor(Server server, String hypervisor, String hypervisorAfterEvacuate)
285 throws RequestFailedException {
286 if (hypervisor != null && hypervisor.equals(hypervisorAfterEvacuate)) {
287 String msg = EELFResourceManager.format(Msg.EVACUATE_SERVER_FAILED, server.getName(), server.getId(),
288 "Hypervisor host " + hypervisor
289 + " after evacuate is the same as before evacuate. Provider (ex. Openstack) recovery actions may be needed.");
291 metricsLogger.error(msg);
292 throw new RequestFailedException(EVACUATE_SERVER, msg, HttpStatus.INTERNAL_SERVER_ERROR_500, server);
296 private void checkStatus(Server server) throws RequestFailedException {
297 if (server.getStatus() == Server.Status.ERROR) {
298 String msg = EELFResourceManager.format(Msg.EVACUATE_SERVER_FAILED, server.getName(), server.getId(),
299 "VM is in ERROR state after evacuate. Provider (ex. Openstack) recovery actions may be needed.");
301 metricsLogger.error(msg);
302 throw new RequestFailedException(EVACUATE_SERVER, msg, HttpStatus.INTERNAL_SERVER_ERROR_500, server);
307 * Check if a Compute node is down.
309 * This method attempts to find a given host in the list of hypervisors for a
310 * given context. The only case where a node is considered down is if a matching
311 * hypervisor is found and it's state and status are not UP/ENABLED.
314 * The current context
317 * The host name (short or fully qualified) of a compute node
319 * @return true if the node is determined as down, false for all other cases
321 private boolean isComputeNodeDown(Context context, String host) throws ZoneException {
322 ComputeService service = context.getComputeService();
323 boolean nodeDown = false;
324 if (host != null && !host.isEmpty()) {
325 List<Hypervisor> hypervisors = service.getHypervisors();
326 logger.debug("List of Hypervisors retrieved: " + Arrays.toString(hypervisors.toArray()));
327 for (Hypervisor hv : hypervisors) {
328 nodeDown = isNodeDown(host, nodeDown, hv);
334 private boolean isNodeDown(String host, boolean nodeDown, Hypervisor hv) {
335 if (isHostMatchesHypervisor(host, hv)) {
336 State hstate = hv.getState();
337 Status hstatus = hv.getStatus();
338 logger.debug("Host matching hypervisor: " + hv.getHostName() + ", State/Status: " + hstate.toString() + "/"
339 + hstatus.toString());
340 if (hstate != State.UP || hstatus != Status.ENABLED) {
347 private boolean isHostMatchesHypervisor(String host, Hypervisor hypervisor) {
348 return hypervisor.getHostName().startsWith(host);
352 protected ModelObject executeProviderOperation(Map<String, String> params, SvcLogicContext context)
353 throws APPCException {
354 setMDC(Operation.EVACUATE_SERVICE.toString(), "App-C IaaS Adapter:Evacuate", ADAPTER_NAME);
355 logOperation(Msg.EVACUATING_SERVER, params, context);
356 setTimeForMetricsLogger();
357 metricsLogger.info("Executing Provider Operation: Evacuate");
358 return evacuateServer(params, context);
361 private void setTimeForMetricsLogger() {
362 String timestamp = LoggingUtils.generateTimestampStr(((Date) new Date()).toInstant());
363 MDC.put(LoggingConstants.MDCKeys.BEGIN_TIMESTAMP, timestamp);
364 MDC.put(LoggingConstants.MDCKeys.END_TIMESTAMP, timestamp);
365 MDC.put(LoggingConstants.MDCKeys.ELAPSED_TIME, "0");
366 MDC.put(LoggingConstants.MDCKeys.STATUS_CODE, LoggingConstants.StatusCodes.COMPLETE);
367 MDC.put(LoggingConstants.MDCKeys.TARGET_ENTITY, "cdp");
368 MDC.put(LoggingConstants.MDCKeys.TARGET_SERVICE_NAME, "evacuate server");
369 MDC.put(LoggingConstants.MDCKeys.CLASS_NAME,
370 "org.onap.appc.adapter.iaas.provider.operation.impl.EvacuateServer");
373 public void setProvideAdapterRef(ProviderAdapterImpl pai) {