// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
package com.cloud.hypervisor;
import java.util.List;
import java.util.Map;
import javax.ejb.Local;
import javax.naming.ConfigurationException;
import org.apache.log4j.Logger;
import com.cloud.agent.AgentManager;
import com.cloud.agent.StartupCommandProcessor;
import com.cloud.agent.api.StartupCommand;
import com.cloud.agent.api.StartupRoutingCommand;
import com.cloud.agent.api.StartupStorageCommand;
import com.cloud.agent.manager.authn.AgentAuthnException;
import com.cloud.configuration.ConfigurationManager;
import com.cloud.configuration.ZoneConfig;
import com.cloud.configuration.dao.ConfigurationDao;
import com.cloud.dc.ClusterVO;
import com.cloud.dc.DataCenterVO;
import com.cloud.dc.DcDetailVO;
import com.cloud.dc.HostPodVO;
import com.cloud.dc.dao.ClusterDao;
import com.cloud.dc.dao.DataCenterDao;
import com.cloud.dc.dao.DcDetailsDao;
import com.cloud.dc.dao.HostPodDao;
import com.cloud.exception.ConnectionException;
import com.cloud.host.Host;
import com.cloud.host.Host.Type;
import com.cloud.host.HostVO;
import com.cloud.host.dao.HostDao;
import com.cloud.hypervisor.Hypervisor.HypervisorType;
import com.cloud.storage.Storage;
import com.cloud.utils.component.Inject;
import com.cloud.utils.exception.CloudRuntimeException;
import com.cloud.utils.net.MacAddress;
import com.cloud.utils.net.NetUtils;
/**
* Creates a host record and supporting records such as pod and ip address
*
*/
@Local(value=StartupCommandProcessor.class)
public class CloudZonesStartupProcessor implements StartupCommandProcessor {
private static final Logger s_logger = Logger.getLogger(CloudZonesStartupProcessor.class);
@Inject ClusterDao _clusterDao = null;
@Inject ConfigurationDao _configDao = null;
@Inject DataCenterDao _zoneDao = null;
@Inject HostDao _hostDao = null;
@Inject HostPodDao _podDao = null;
@Inject DcDetailsDao _zoneDetailsDao = null;
@Inject AgentManager _agentManager = null;
@Inject ConfigurationManager _configurationManager = null;
long _nodeId = -1;
@Override
public boolean configure(String name, Map<String, Object> params)
throws ConfigurationException {
_agentManager.registerForInitialConnects(this, false);
if (_nodeId == -1) {
// FIXME: We really should not do this like this. It should be done
// at config time and is stored as a config variable.
_nodeId = MacAddress.getMacAddress().toLong();
}
return true;
}
@Override
public String getName() {
return getClass().getName();
}
@Override
public boolean start() {
return true;
}
@Override
public boolean stop() {
return true;
}
@Override
public boolean processInitialConnect(StartupCommand[] cmd)
throws ConnectionException {
StartupCommand startup = cmd[0];
if (startup instanceof StartupRoutingCommand) {
return processHostStartup((StartupRoutingCommand)startup);
} else if (startup instanceof StartupStorageCommand ){
return processStorageStartup((StartupStorageCommand)startup);
}
return false;
}
protected boolean processHostStartup(StartupRoutingCommand startup) throws ConnectionException{
/*
boolean found = false;
Type type = Host.Type.Routing;
final Map<String, String> hostDetails = startup.getHostDetails();
HostVO server = _hostDao.findByGuid(startup.getGuid());
if (server == null) {
server = _hostDao.findByGuid(startup.getGuidWithoutResource());
}
if (server != null && server.getRemoved() == null) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Found the host " + server.getId() + " by guid: "
+ startup.getGuid());
}
found = true;
} else {
server = new HostVO(startup.getGuid());
}
server.setDetails(hostDetails);
try {
updateComputeHost(server, startup, type);
} catch (AgentAuthnException e) {
throw new ConnectionException(true, "Failed to authorize host, invalid configuration", e);
}
if (!found) {
server.setHostAllocationState(Host.HostAllocationState.Enabled);
server = _hostDao.persist(server);
} else {
if (!_hostDao.connect(server, _nodeId)) {
throw new CloudRuntimeException(
"Agent cannot connect because the current state is "
+ server.getStatus().toString());
}
s_logger.info("Old " + server.getType().toString()
+ " host reconnected w/ id =" + server.getId());
}
*/
return true;
}
protected void updateComputeHost(final HostVO host, final StartupCommand startup,
final Host.Type type) throws AgentAuthnException {
String zoneToken = startup.getDataCenter();
if(zoneToken == null){
s_logger.warn("No Zone Token passed in, cannot not find zone for the agent");
throw new AgentAuthnException("No Zone Token passed in, cannot not find zone for agent");
}
DataCenterVO zone = _zoneDao.findByToken(zoneToken);
if (zone == null) {
zone = _zoneDao.findByName(zoneToken);
if(zone == null){
try {
long zoneId = Long.parseLong(zoneToken);
zone = _zoneDao.findById(zoneId);
if (zone == null) {
throw new AgentAuthnException("Could not find zone for agent with token " + zoneToken);
}
} catch (NumberFormatException nfe) {
throw new AgentAuthnException("Could not find zone for agent with token " + zoneToken);
}
}
}
if(s_logger.isDebugEnabled()){
s_logger.debug("Successfully loaded the DataCenter from the zone token passed in ");
}
long zoneId = zone.getId();
DcDetailVO maxHostsInZone = _zoneDetailsDao.findDetail(zoneId, ZoneConfig.MaxHosts.key());
if(maxHostsInZone != null){
long maxHosts = new Long(maxHostsInZone.getValue()).longValue();
long currentCountOfHosts = _hostDao.countRoutingHostsByDataCenter(zoneId);
if(s_logger.isDebugEnabled()){
s_logger.debug("Number of hosts in Zone:"+ currentCountOfHosts + ", max hosts limit: "+ maxHosts);
}
if(currentCountOfHosts >= maxHosts){
throw new AgentAuthnException("Number of running Routing hosts in the Zone:"+ zone.getName() +" is already at the max limit:"+maxHosts+", cannot start one more host");
}
}
HostPodVO pod = null;
if(startup.getPrivateIpAddress() == null){
s_logger.warn("No private IP address passed in for the agent, cannot not find pod for agent");
throw new AgentAuthnException("No private IP address passed in for the agent, cannot not find pod for agent");
}
if(startup.getPrivateNetmask() == null){
s_logger.warn("No netmask passed in for the agent, cannot not find pod for agent");
throw new AgentAuthnException("No netmask passed in for the agent, cannot not find pod for agent");
}
if(host.getPodId() != null){
if(s_logger.isDebugEnabled()){
s_logger.debug("Pod is already created for this agent, looks like agent is reconnecting...");
}
pod = _podDao.findById(host.getPodId());
if(!checkCIDR(type, pod, startup.getPrivateIpAddress(),
startup.getPrivateNetmask())){
pod = null;
if(s_logger.isDebugEnabled()){
s_logger.debug("Subnet of Pod does not match the subnet of the agent, not using this Pod: "+host.getPodId());
}
}else{
updatePodNetmaskIfNeeded(pod, startup.getPrivateNetmask());
}
}
if(pod == null){
if(s_logger.isDebugEnabled()){
s_logger.debug("Trying to detect the Pod to use from the agent's ip address and netmask passed in ");
}
//deduce pod
boolean podFound = false;
List<HostPodVO> podsInZone = _podDao.listByDataCenterId(zoneId);
for (HostPodVO hostPod : podsInZone) {
if (checkCIDR(type, hostPod, startup.getPrivateIpAddress(),
startup.getPrivateNetmask())) {
pod = hostPod;
//found the default POD having the same subnet.
updatePodNetmaskIfNeeded(pod, startup.getPrivateNetmask());
podFound = true;
break;
}
}
if (!podFound) {
if(s_logger.isDebugEnabled()){
s_logger.debug("Creating a new Pod since no default Pod found that matches the agent's ip address and netmask passed in ");
}
if(startup.getGatewayIpAddress() == null){
s_logger.warn("No Gateway IP address passed in for the agent, cannot create a new pod for the agent");
throw new AgentAuthnException("No Gateway IP address passed in for the agent, cannot create a new pod for the agent");
}
//auto-create a new pod, since pod matching the agent's ip is not found
String podName = "POD-"+ (podsInZone.size()+1);
try{
String gateway = startup.getGatewayIpAddress();
String cidr = NetUtils.getCidrFromGatewayAndNetmask(gateway, startup.getPrivateNetmask());
String[] cidrPair = cidr.split("\\/");
String cidrAddress = cidrPair[0];
long cidrSize = Long.parseLong(cidrPair[1]);
String startIp = NetUtils.getIpRangeStartIpFromCidr(cidrAddress, cidrSize);
String endIp = NetUtils.getIpRangeEndIpFromCidr(cidrAddress, cidrSize);
pod = _configurationManager.createPod(-1, podName, zoneId, gateway, cidr, startIp, endIp, null, true);
}catch (Exception e) {
// no longer tolerate exception during the cluster creation phase
throw new CloudRuntimeException("Unable to create new Pod "
+ podName + " in Zone: "
+ zoneId, e);
}
}
}
final StartupRoutingCommand scc = (StartupRoutingCommand) startup;
ClusterVO cluster = null;
if(host.getClusterId() != null){
if(s_logger.isDebugEnabled()){
s_logger.debug("Cluster is already created for this agent, looks like agent is reconnecting...");
}
cluster = _clusterDao.findById(host.getClusterId());
}
if(cluster == null){
//auto-create cluster - assume one host per cluster
String clusterName = "Cluster-" + startup.getPrivateIpAddress();
ClusterVO existingCluster = _clusterDao.findBy(clusterName, pod.getId());
if (existingCluster != null) {
cluster = existingCluster;
} else {
if(s_logger.isDebugEnabled()){
s_logger.debug("Creating a new Cluster for this agent with name: "+clusterName + " in Pod: " +pod.getId() +", in Zone:"+zoneId);
}
cluster = new ClusterVO(zoneId, pod.getId(), clusterName);
cluster.setHypervisorType(scc.getHypervisorType().toString());
try {
cluster = _clusterDao.persist(cluster);
} catch (Exception e) {
// no longer tolerate exception during the cluster creation phase
throw new CloudRuntimeException("Unable to create cluster "
+ clusterName + " in pod " + pod.getId() + " and data center "
+ zoneId, e);
}
}
}
if(s_logger.isDebugEnabled()){
s_logger.debug("Detected Zone: "+zoneId+", Pod: " +pod.getId() +", Cluster:" +cluster.getId());
}
host.setDataCenterId(zone.getId());
host.setPodId(pod.getId());
host.setClusterId(cluster.getId());
host.setPrivateIpAddress(startup.getPrivateIpAddress());
host.setPrivateNetmask(startup.getPrivateNetmask());
host.setPrivateMacAddress(startup.getPrivateMacAddress());
host.setPublicIpAddress(startup.getPublicIpAddress());
host.setPublicMacAddress(startup.getPublicMacAddress());
host.setPublicNetmask(startup.getPublicNetmask());
host.setStorageIpAddress(startup.getStorageIpAddress());
host.setStorageMacAddress(startup.getStorageMacAddress());
host.setStorageNetmask(startup.getStorageNetmask());
host.setVersion(startup.getVersion());
host.setName(startup.getName());
host.setType(type);
host.setStorageUrl(startup.getIqn());
host.setLastPinged(System.currentTimeMillis() >> 10);
host.setCaps(scc.getCapabilities());
host.setCpus(scc.getCpus());
host.setTotalMemory(scc.getMemory());
host.setSpeed(scc.getSpeed());
HypervisorType hyType = scc.getHypervisorType();
host.setHypervisorType(hyType);
host.setHypervisorVersion(scc.getHypervisorVersion());
}
private boolean checkCIDR(Host.Type type, HostPodVO pod,
String serverPrivateIP, String serverPrivateNetmask) {
if (serverPrivateIP == null) {
return true;
}
// Get the CIDR address and CIDR size
String cidrAddress = pod.getCidrAddress();
long cidrSize = pod.getCidrSize();
// If the server's private IP address is not in the same subnet as the
// pod's CIDR, return false
String cidrSubnet = NetUtils.getCidrSubNet(cidrAddress, cidrSize);
String serverSubnet = NetUtils.getSubNet(serverPrivateIP,
serverPrivateNetmask);
if (!cidrSubnet.equals(serverSubnet)) {
return false;
}
return true;
}
private void updatePodNetmaskIfNeeded(HostPodVO pod, String agentNetmask){
// If the server's private netmask is less inclusive than the pod's CIDR
// netmask, update cidrSize of the default POD
//(reason: we are maintaining pods only for internal accounting.)
long cidrSize = pod.getCidrSize();
String cidrNetmask = NetUtils
.getCidrSubNet("255.255.255.255", cidrSize);
long cidrNetmaskNumeric = NetUtils.ip2Long(cidrNetmask);
long serverNetmaskNumeric = NetUtils.ip2Long(agentNetmask);//
if (serverNetmaskNumeric > cidrNetmaskNumeric) {
//update pod's cidrsize
int newCidrSize = new Long(NetUtils.getCidrSize(agentNetmask)).intValue();
pod.setCidrSize(newCidrSize);
_podDao.update(pod.getId(), pod);
}
}
protected boolean processStorageStartup(StartupStorageCommand startup) throws ConnectionException{
/*
if (startup.getResourceType() != Storage.StorageResourceType.LOCAL_SECONDARY_STORAGE) {
return false;
}
boolean found = false;
Type type = Host.Type.LocalSecondaryStorage;
final Map<String, String> hostDetails = startup.getHostDetails();
HostVO server = _hostDao.findByGuid(startup.getGuid());
if (server == null) {
server = _hostDao.findByGuid(startup.getGuidWithoutResource());
}
if (server != null && server.getRemoved() == null) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Found the host " + server.getId() + " by guid: "
+ startup.getGuid());
}
found = true;
} else {
server = new HostVO(startup.getGuid());
}
server.setDetails(hostDetails);
try {
updateSecondaryHost(server, startup, type);
} catch (AgentAuthnException e) {
throw new ConnectionException(true, "Failed to authorize host, invalid configuration", e);
}
if (!found) {
server.setHostAllocationState(Host.HostAllocationState.Enabled);
server = _hostDao.persist(server);
} else {
if (!_hostDao.connect(server, _nodeId)) {
throw new CloudRuntimeException(
"Agent cannot connect because the current state is "
+ server.getStatus().toString());
}
s_logger.info("Old " + server.getType().toString()
+ " host reconnected w/ id =" + server.getId());
}
*/
return true;
}
protected void updateSecondaryHost(final HostVO host, final StartupStorageCommand startup,
final Host.Type type) throws AgentAuthnException {
String zoneToken = startup.getDataCenter();
if(zoneToken == null){
s_logger.warn("No Zone Token passed in, cannot not find zone for the agent");
throw new AgentAuthnException("No Zone Token passed in, cannot not find zone for agent");
}
DataCenterVO zone = _zoneDao.findByToken(zoneToken);
if (zone == null) {
zone = _zoneDao.findByName(zoneToken);
if(zone == null){
try {
long zoneId = Long.parseLong(zoneToken);
zone = _zoneDao.findById(zoneId);
if (zone == null) {
throw new AgentAuthnException("Could not find zone for agent with token " + zoneToken);
}
} catch (NumberFormatException nfe) {
throw new AgentAuthnException("Could not find zone for agent with token " + zoneToken);
}
}
}
if(s_logger.isDebugEnabled()){
s_logger.debug("Successfully loaded the DataCenter from the zone token passed in ");
}
HostPodVO pod = findPod(startup, zone.getId(), Host.Type.Routing); //yes, routing
Long podId = null;
if (pod != null) {
s_logger.debug("Found pod " + pod.getName() + " for the secondary storage host " + startup.getName());
podId = pod.getId();
}
host.setDataCenterId(zone.getId());
host.setPodId(podId);
host.setClusterId(null);
host.setPrivateIpAddress(startup.getPrivateIpAddress());
host.setPrivateNetmask(startup.getPrivateNetmask());
host.setPrivateMacAddress(startup.getPrivateMacAddress());
host.setPublicIpAddress(startup.getPublicIpAddress());
host.setPublicMacAddress(startup.getPublicMacAddress());
host.setPublicNetmask(startup.getPublicNetmask());
host.setStorageIpAddress(startup.getStorageIpAddress());
host.setStorageMacAddress(startup.getStorageMacAddress());
host.setStorageNetmask(startup.getStorageNetmask());
host.setVersion(startup.getVersion());
host.setName(startup.getName());
host.setType(type);
host.setStorageUrl(startup.getIqn());
host.setLastPinged(System.currentTimeMillis() >> 10);
host.setCaps(null);
host.setCpus(null);
host.setTotalMemory(0);
host.setSpeed(null);
host.setParent(startup.getParent());
host.setTotalSize(startup.getTotalSize());
host.setHypervisorType(HypervisorType.None);
if (startup.getNfsShare() != null) {
host.setStorageUrl(startup.getNfsShare());
}
}
private HostPodVO findPod(StartupCommand startup, long zoneId, Host.Type type) {
HostPodVO pod = null;
List<HostPodVO> podsInZone = _podDao.listByDataCenterId(zoneId);
for (HostPodVO hostPod : podsInZone) {
if (checkCIDR(type, hostPod, startup.getPrivateIpAddress(),
startup.getPrivateNetmask())) {
pod = hostPod;
//found the default POD having the same subnet.
updatePodNetmaskIfNeeded(pod, startup.getPrivateNetmask());
break;
}
}
return pod;
}
}