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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* ================================================================================
* Modification Copyright (C) 2019 IBM
* =============================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* ============LICENSE_END=========================================================
*/
package org.onap.appc.adapter.iaas.provider.operation.impl;
import com.att.cdp.exceptions.ContextConnectionException;
import com.att.cdp.exceptions.ZoneException;
import com.att.cdp.zones.ComputeService;
import com.att.cdp.zones.Context;
import com.att.cdp.zones.model.ModelObject;
import com.att.cdp.zones.model.Server;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.att.eelf.i18n.EELFResourceManager;
import org.glassfish.grizzly.http.util.HttpStatus;
import org.onap.appc.Constants;
import org.onap.appc.logging.LoggingConstants;
import org.onap.appc.logging.LoggingUtils;
import org.onap.appc.adapter.iaas.ProviderAdapter;
import org.onap.appc.adapter.iaas.impl.IdentityURL;
import org.onap.appc.adapter.iaas.impl.RequestContext;
import org.onap.appc.adapter.iaas.impl.RequestFailedException;
import org.onap.appc.adapter.iaas.impl.VMURL;
import org.onap.appc.adapter.iaas.provider.operation.common.constants.Property;
import org.onap.appc.adapter.iaas.provider.operation.common.enums.Operation;
import org.onap.appc.adapter.iaas.provider.operation.impl.base.ProviderServerOperation;
import org.onap.appc.configuration.Configuration;
import org.onap.appc.configuration.ConfigurationFactory;
import org.onap.appc.exceptions.APPCException;
import org.onap.appc.i18n.Msg;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.slf4j.MDC;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Date;
import java.util.Map;
import static org.onap.appc.adapter.iaas.provider.operation.common.enums.Operation.MIGRATE_SERVICE;
import static org.onap.appc.adapter.utils.Constants.ADAPTER_NAME;
public class MigrateServer extends ProviderServerOperation {
private static final EELFLogger logger = EELFManager.getInstance().getLogger(MigrateServer.class);
private static EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
private static final Configuration configuration = ConfigurationFactory.getConfiguration();
/**
* A list of valid initial VM statuses for a migrate operations
*/
private final Collection<Server.Status> migratableStatuses = Arrays.asList(Server.Status.READY,
Server.Status.RUNNING, Server.Status.SUSPENDED);
private String getConnectionExceptionMessage(RequestContext rc, Context ctx, ZoneException e) throws ZoneException {
return EELFResourceManager.format(Msg.CONNECTION_FAILED_RETRY, ctx.getProvider().getName(),
ctx.getComputeService().getURL(), ctx.getTenant().getName(), ctx.getTenant().getId(), e.getMessage(),
Long.toString(rc.getRetryDelay()), Integer.toString(rc.getAttempts()),
Integer.toString(rc.getRetryLimit()));
}
private void migrateServer(RequestContext rc, Server server, SvcLogicContext svcCtx)
throws ZoneException, RequestFailedException {
String msg;
Context ctx = server.getContext();
ComputeService service = ctx.getComputeService();
// Init status will equal final status
Server.Status initialStatus = server.getStatus();
if (initialStatus == null) {
throw new ZoneException("Failed to determine server's starting status");
}
// We can only migrate certain statuses
if (!migratableStatuses.contains(initialStatus)) {
throw new ZoneException(String.format("Cannot migrate server that is in %s state. Must be in one of [%s]",
initialStatus, migratableStatuses));
}
setTimeForMetricsLogger();
// Is the skip Hypervisor check attribute populated?
String skipHypervisorCheck = configuration.getProperty(Property.SKIP_HYPERVISOR_CHECK);
if (skipHypervisorCheck == null && svcCtx != null) {
skipHypervisorCheck = svcCtx.getAttribute(ProviderAdapter.SKIP_HYPERVISOR_CHECK);
}
// Always perform Hypervisor check
// unless the skip is set to true
if (skipHypervisorCheck == null || (!(("true").equalsIgnoreCase(skipHypervisorCheck)))) {
// Check of the Hypervisor for the VM Server is UP and reachable
checkHypervisor(server);
}
boolean inConfirmPhase = false;
try {
while (rc.attempt()) {
try {
if (!inConfirmPhase) {
// Initial migrate request
service.migrateServer(server.getId());
// Wait for change to verify resize
waitForStateChange(rc, server, Server.Status.READY);
inConfirmPhase = true;
}
if (server.getStatus() != null && server.getStatus().equals(Server.Status.ERROR)) {
msg = "Cannot Perform 'processResize' in vm_state " + Server.Status.ERROR;
logger.info(msg);
msg = EELFResourceManager.format(Msg.MIGRATE_SERVER_FAILED, service.getURL());
logger.error(msg);
logger.info(msg);
throw new RequestFailedException("Waiting for State Change", msg, HttpStatus.CONFLICT_409,
server);
} else {
// Verify resize
logger.debug("MigrateServer: Before service.processResize");
service.processResize(server);
logger.debug("MigrateServer:before 2nd waitForStateChange Current Status:" + server.getStatus()
+ " Initail Status: " + initialStatus);
// Wait for complete. will go back to init status
waitForStateChange(rc, server, initialStatus);
logger.info("Completed migrate request successfully");
metricsLogger.info("Completed migrate request successfully");
return;
}
} catch (ContextConnectionException e) {
msg = getConnectionExceptionMessage(rc, ctx, e);
if (server.getStatus() != null && server.getStatus().equals(Server.Status.ERROR)) {
throw new RequestFailedException("Migrate Server", msg, HttpStatus.CONFLICT_409, server);
} else {
logger.info("Migrate Server: Going to delay in ConnectionException");
logger.debug("Server Status: " + server.getStatus());
rc.delay();
}
}
}
} catch (ZoneException e) {
String phase = inConfirmPhase ? "VERIFY MIGRATE" : "REQUEST MIGRATE";
msg = EELFResourceManager.format(Msg.MIGRATE_SERVER_FAILED, server.getName(), server.getId(), phase,
e.getMessage());
logger.error(msg, e);
throw new RequestFailedException("Migrate Server", msg, HttpStatus.METHOD_NOT_ALLOWED_405, server);
}
}
/**
* @see org.onap.appc.adapter.iaas.ProviderAdapter#migrateServer(java.util.Map,
* org.onap.ccsdk.sli.core.sli.SvcLogicContext)
*/
private Server migrateServer(Map<String, String> params, SvcLogicContext ctx) {
Server server = null;
RequestContext rc = new RequestContext(ctx);
rc.isAlive();
setTimeForMetricsLogger();
try {
validateParametersExist(params, ProviderAdapter.PROPERTY_INSTANCE_URL,
ProviderAdapter.PROPERTY_PROVIDER_NAME);
String vmUrl = params.get(ProviderAdapter.PROPERTY_INSTANCE_URL);
String appName = configuration.getProperty(Constants.PROPERTY_APPLICATION_NAME);
VMURL vm = VMURL.parseURL(vmUrl);
if (validateVM(rc, appName, vmUrl, vm))
return null;
IdentityURL ident = IdentityURL.parseURL(params.get(ProviderAdapter.PROPERTY_IDENTITY_URL));
String identStr = (ident == null) ? null : ident.toString();
server = conductServerMigration(rc, vmUrl, identStr, ctx);
} catch (RequestFailedException e) {
doFailure(rc, e.getStatus(), e.getMessage());
}
return server;
}
@Override
protected ModelObject executeProviderOperation(Map<String, String> params, SvcLogicContext context)
throws APPCException {
setMDC(Operation.MIGRATE_SERVICE.toString(), "App-C IaaS Adapter:Migrate", ADAPTER_NAME);
logOperation(Msg.MIGRATING_SERVER, params, context);
setTimeForMetricsLogger();
metricsLogger.info("Executing Provider Operation: Migrate");
return migrateServer(params, context);
}
private void setTimeForMetricsLogger() {
String timestamp = LoggingUtils.generateTimestampStr((new Date()).toInstant());
MDC.put(LoggingConstants.MDCKeys.BEGIN_TIMESTAMP, timestamp);
MDC.put(LoggingConstants.MDCKeys.END_TIMESTAMP, timestamp);
MDC.put(LoggingConstants.MDCKeys.ELAPSED_TIME, "0");
MDC.put(LoggingConstants.MDCKeys.STATUS_CODE, LoggingConstants.StatusCodes.COMPLETE);
MDC.put(LoggingConstants.MDCKeys.TARGET_ENTITY, "cdp");
MDC.put(LoggingConstants.MDCKeys.TARGET_SERVICE_NAME, "migrate server");
MDC.put(LoggingConstants.MDCKeys.CLASS_NAME,
"org.onap.appc.adapter.iaas.provider.operation.impl.MigrateServer");
}
private Server conductServerMigration(RequestContext rc, String vmUrl, String identStr, SvcLogicContext ctx)
throws RequestFailedException {
String msg;
Context context = getContext(rc, vmUrl, identStr);
VMURL vm = VMURL.parseURL(vmUrl);
Server server = null;
try {
if (context != null) {
server = lookupServer(rc, context, vm.getServerId());
logger.debug(Msg.SERVER_FOUND, vmUrl, context.getTenantName(), server.getStatus().toString());
migrateServer(rc, server, ctx);
server.refreshStatus();
context.close();
doSuccess(rc);
}
} catch (IOException | ZoneException e1) {
msg = EELFResourceManager.format(Msg.SERVER_OPERATION_EXCEPTION, e1, e1.getClass().getSimpleName(),
MIGRATE_SERVICE.toString(), vmUrl, context.getTenantName());
logger.error(msg, e1);
metricsLogger.error(msg);
doFailure(rc, HttpStatus.INTERNAL_SERVER_ERROR_500, msg);
}
return server;
}
}
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