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// 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.ovm.hypervisor;
import java.net.InetAddress;
import java.net.URI;
import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.ejb.Local;
import javax.naming.ConfigurationException;
import org.apache.log4j.Logger;
import org.apache.xmlrpc.XmlRpcException;
import com.cloud.configuration.Config;
import com.cloud.agent.api.StartupCommand;
import com.cloud.agent.api.StartupRoutingCommand;
import com.cloud.dc.ClusterVO;
import com.cloud.dc.dao.ClusterDao;
import com.cloud.exception.DiscoveryException;
import com.cloud.host.HostInfo;
import com.cloud.host.HostVO;
import com.cloud.hypervisor.Hypervisor.HypervisorType;
import com.cloud.ovm.object.Connection;
import com.cloud.ovm.object.OvmHost;
import com.cloud.resource.Discoverer;
import com.cloud.resource.DiscovererBase;
import com.cloud.resource.ResourceManager;
import com.cloud.resource.ResourceStateAdapter;
import com.cloud.resource.ServerResource;
import com.cloud.resource.UnableDeleteHostException;
import com.cloud.utils.component.Inject;
import com.cloud.utils.db.SearchCriteria;
import com.cloud.utils.db.SearchCriteria2;
import com.cloud.utils.exception.CloudRuntimeException;
import com.cloud.utils.ssh.SSHCmdHelper;
@Local(value = Discoverer.class)
public class OvmDiscoverer extends DiscovererBase implements Discoverer,
ResourceStateAdapter {
private static final Logger s_logger = Logger
.getLogger(OvmDiscoverer.class);
protected String _publicNetworkDevice;
protected String _privateNetworkDevice;
protected String _guestNetworkDevice;
@Inject
ClusterDao _clusterDao;
@Inject
ResourceManager _resourceMgr;
@Override
public boolean configure(String name, Map<String, Object> params)
throws ConfigurationException {
super.configure(name, params);
_publicNetworkDevice = _params.get(Config.OvmPublicNetwork.key());
_privateNetworkDevice = _params.get(Config.OvmPrivateNetwork.key());
_guestNetworkDevice = _params.get(Config.OvmGuestNetwork.key());
_resourceMgr.registerResourceStateAdapter(this.getClass()
.getSimpleName(), this);
return true;
}
protected OvmDiscoverer() {
}
@Override
public boolean stop() {
_resourceMgr.unregisterResourceStateAdapter(this.getClass()
.getSimpleName());
return super.stop();
}
private boolean checkIfExisted(String guid) {
SearchCriteria2<HostVO, HostVO> sc = SearchCriteria2.create(HostVO.class);
sc.addAnd(sc.getEntity().getGuid(), SearchCriteria.Op.EQ, guid);
sc.addAnd(sc.getEntity().getHypervisorType(), SearchCriteria.Op.EQ,
HypervisorType.Ovm);
List<HostVO> hosts = sc.list();
return !hosts.isEmpty();
}
@Override
public Map<? extends ServerResource, Map<String, String>> find(long dcId,
Long podId, Long clusterId, URI url, String username,
String password, List<String> hostTags) throws DiscoveryException {
Connection conn = null;
if (!url.getScheme().equals("http")) {
String msg = "urlString is not http so we're not taking care of the discovery for this: "
+ url;
s_logger.debug(msg);
return null;
}
if (clusterId == null) {
String msg = "must specify cluster Id when add host";
s_logger.debug(msg);
throw new CloudRuntimeException(msg);
}
if (podId == null) {
String msg = "must specify pod Id when add host";
s_logger.debug(msg);
throw new CloudRuntimeException(msg);
}
ClusterVO cluster = _clusterDao.findById(clusterId);
if (cluster == null
|| (cluster.getHypervisorType() != HypervisorType.Ovm)) {
if (s_logger.isInfoEnabled())
s_logger.info("invalid cluster id or cluster is not for Ovm hypervisors");
return null;
}
String agentUsername = _params.get("agentusername");
if (agentUsername == null) {
throw new CloudRuntimeException("Agent user name must be specified");
}
String agentPassword = _params.get("agentpassword");
if (agentPassword == null) {
throw new CloudRuntimeException("Agent password must be specified");
}
try {
String hostname = url.getHost();
InetAddress ia = InetAddress.getByName(hostname);
String hostIp = ia.getHostAddress();
String guid = UUID.nameUUIDFromBytes(hostIp.getBytes()).toString();
if (checkIfExisted(guid)) {
throw new CloudRuntimeException("The host " + hostIp
+ " has been added before");
}
s_logger.debug("Ovm discover is going to disover host having guid "
+ guid);
ClusterVO clu = _clusterDao.findById(clusterId);
if (clu.getGuid() == null) {
clu.setGuid(UUID.randomUUID().toString());
_clusterDao.update(clusterId, clu);
}
com.trilead.ssh2.Connection sshConnection = new com.trilead.ssh2.Connection(
hostIp, 22);
sshConnection.connect(null, 60000, 60000);
sshConnection = SSHCmdHelper.acquireAuthorizedConnection(hostIp,
username, password);
if (sshConnection == null) {
throw new DiscoveryException(
String.format(
"Cannot connect to ovm host(IP=%1$s, username=%2$s, password=%3$s, discover failed",
hostIp, username, password));
}
if (!SSHCmdHelper.sshExecuteCmd(sshConnection,
"[ -f '/etc/ovs-agent/agent.ini' ]")) {
throw new DiscoveryException(
"Can not find /etc/ovs-agent/agent.ini " + hostIp);
}
Map<String, String> details = new HashMap<String, String>();
OvmResourceBase ovmResource = new OvmResourceBase();
details.put("ip", hostIp);
details.put("username", username);
details.put("password", password);
details.put("zone", Long.toString(dcId));
details.put("guid", guid);
details.put("pod", Long.toString(podId));
details.put("cluster", Long.toString(clusterId));
details.put("agentusername", agentUsername);
details.put("agentpassword", agentPassword);
if (_publicNetworkDevice != null) {
details.put("public.network.device", _publicNetworkDevice);
}
if (_privateNetworkDevice != null) {
details.put("private.network.device", _privateNetworkDevice);
}
if (_guestNetworkDevice != null) {
details.put("guest.network.device", _guestNetworkDevice);
}
Map<String, Object> params = new HashMap<String, Object>();
params.putAll(details);
ovmResource.configure("Ovm Server", params);
ovmResource.start();
conn = new Connection(hostIp, "oracle", agentPassword);
/* After resource start, we are able to execute our agent api */
OvmHost.Details d = OvmHost.getDetails(conn);
details.put("agentVersion", d.agentVersion);
details.put(HostInfo.HOST_OS_KERNEL_VERSION, d.dom0KernelVersion);
details.put(HostInfo.HYPERVISOR_VERSION, d.hypervisorVersion);
Map<OvmResourceBase, Map<String, String>> resources = new HashMap<OvmResourceBase, Map<String, String>>();
resources.put(ovmResource, details);
return resources;
} catch (XmlRpcException e) {
s_logger.debug("XmlRpc exception, Unable to discover OVM: " + url,
e);
return null;
} catch (UnknownHostException e) {
s_logger.debug(
"Host name resolve failed exception, Unable to discover OVM: "
+ url, e);
return null;
} catch (ConfigurationException e) {
s_logger.debug(
"Configure resource failed, Unable to discover OVM: " + url,
e);
return null;
} catch (Exception e) {
s_logger.debug("Unable to discover OVM: " + url, e);
return null;
}
}
@Override
public void postDiscovery(List<HostVO> hosts, long msId)
throws DiscoveryException {
// TODO Auto-generated method stub
}
@Override
public boolean matchHypervisor(String hypervisor) {
return HypervisorType.Ovm.toString().equalsIgnoreCase(hypervisor);
}
@Override
public HypervisorType getHypervisorType() {
return HypervisorType.Ovm;
}
@Override
public HostVO createHostVOForConnectedAgent(HostVO host,
StartupCommand[] cmd) {
// TODO Auto-generated method stub
return null;
}
@Override
public HostVO createHostVOForDirectConnectAgent(HostVO host,
StartupCommand[] startup, ServerResource resource,
Map<String, String> details, List<String> hostTags) {
StartupCommand firstCmd = startup[0];
if (!(firstCmd instanceof StartupRoutingCommand)) {
return null;
}
StartupRoutingCommand ssCmd = ((StartupRoutingCommand) firstCmd);
if (ssCmd.getHypervisorType() != HypervisorType.Ovm) {
return null;
}
return _resourceMgr.fillRoutingHostVO(host, ssCmd, HypervisorType.Ovm,
details, hostTags);
}
@Override
public DeleteHostAnswer deleteHost(HostVO host, boolean isForced,
boolean isForceDeleteStorage) throws UnableDeleteHostException {
if (host.getType() != com.cloud.host.Host.Type.Routing
|| host.getHypervisorType() != HypervisorType.Ovm) {
return null;
}
_resourceMgr.deleteRoutingHost(host, isForced, isForceDeleteStorage);
return new DeleteHostAnswer(true);
}
}