| /* |
| * 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 org.apache.brooklyn.core.location.dynamic.clocker; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| |
| import org.apache.brooklyn.api.entity.Entity; |
| import org.apache.brooklyn.api.location.LocationDefinition; |
| import org.apache.brooklyn.api.location.MachineProvisioningLocation; |
| import org.apache.brooklyn.api.location.NoMachinesAvailableException; |
| import org.apache.brooklyn.api.mgmt.ManagementContext.PropertiesReloadListener; |
| import org.apache.brooklyn.config.ConfigKey; |
| import org.apache.brooklyn.core.config.ConfigKeys; |
| import org.apache.brooklyn.core.entity.Entities; |
| import org.apache.brooklyn.core.entity.trait.Startable; |
| import org.apache.brooklyn.core.location.AbstractLocation; |
| import org.apache.brooklyn.core.location.BasicLocationDefinition; |
| import org.apache.brooklyn.core.location.LocationConfigKeys; |
| import org.apache.brooklyn.core.location.Locations; |
| import org.apache.brooklyn.core.location.dynamic.DynamicLocation; |
| import org.apache.brooklyn.entity.group.DynamicCluster; |
| import org.apache.brooklyn.location.ssh.SshMachineLocation; |
| import org.apache.brooklyn.util.collections.MutableMap; |
| import org.apache.brooklyn.util.core.flags.SetFromFlag; |
| import org.apache.brooklyn.util.exceptions.Exceptions; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableMap; |
| |
| public class StubHostLocation extends AbstractLocation implements MachineProvisioningLocation<StubContainerLocation>, DynamicLocation<StubHost, StubHostLocation> { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(StubHostLocation.class); |
| |
| public static final ConfigKey<String> LOCATION_NAME = ConfigKeys.newStringConfigKey("locationName"); |
| |
| public static final ConfigKey<SshMachineLocation> MACHINE = ConfigKeys.newConfigKey( |
| SshMachineLocation.class, |
| "machine"); |
| |
| @SetFromFlag("locationRegistrationId") |
| private String locationRegistrationId; |
| |
| private transient StubHost dockerHost; |
| private transient SshMachineLocation machine; |
| |
| @Override |
| public void init() { |
| super.init(); |
| |
| // TODO BasicLocationRebindsupport.addCustoms currently calls init() unfortunately! |
| // Don't checkNotNull in that situation - it could be this location is orphaned! |
| if (isRebinding()) { |
| dockerHost = (StubHost) config().get(OWNER); |
| machine = config().get(MACHINE); |
| } else { |
| dockerHost = (StubHost) checkNotNull(getConfig(OWNER), "owner"); |
| machine = checkNotNull(getConfig(MACHINE), "machine"); |
| addReloadListener(); |
| } |
| } |
| |
| @Override |
| public void rebind() { |
| super.rebind(); |
| |
| dockerHost = (StubHost) getConfig(OWNER); |
| machine = getConfig(MACHINE); |
| |
| if (getConfig(LOCATION_NAME) != null) { |
| register(); |
| } |
| addReloadListener(); |
| } |
| |
| @SuppressWarnings("serial") |
| private void addReloadListener() { |
| getManagementContext().addPropertiesReloadListener(new PropertiesReloadListener() { |
| @Override public void reloaded() { |
| register(); |
| }}); |
| } |
| |
| @Override |
| public LocationDefinition register() { |
| String locationName = checkNotNull(getConfig(LOCATION_NAME), "config %s", LOCATION_NAME.getName()); |
| |
| LocationDefinition check = getManagementContext().getLocationRegistry().getDefinedLocationByName(locationName); |
| if (check != null) { |
| throw new IllegalStateException("Location " + locationName + " is already defined: " + check); |
| } |
| |
| String hostLocId = getId(); |
| String infraLocId = (getParent() != null) ? getParent().getId() : ""; |
| String locationSpec = String.format(StubResolver.DOCKER_HOST_MACHINE_SPEC, infraLocId, hostLocId) + String.format(":(name=\"%s\")", locationName); |
| |
| LocationDefinition definition = new BasicLocationDefinition(locationName, locationSpec, ImmutableMap.<String, Object>of()); |
| getManagementContext().getLocationRegistry().updateDefinedLocation(definition); |
| |
| locationRegistrationId = definition.getId(); |
| requestPersist(); |
| |
| return definition; |
| } |
| |
| @Override |
| public void deregister() { |
| if (locationRegistrationId != null) { |
| getManagementContext().getLocationRegistry().removeDefinedLocation(locationRegistrationId); |
| locationRegistrationId = null; |
| requestPersist(); |
| } |
| } |
| |
| @Override |
| public StubHost getOwner() { |
| return (StubHost) getConfig(OWNER); |
| } |
| |
| @Override |
| public StubContainerLocation obtain(Map<?, ?> flags) throws NoMachinesAvailableException { |
| Entity callerContext = (Entity) flags.get(LocationConfigKeys.CALLER_CONTEXT.getName()); |
| if (callerContext == null) callerContext = getOwner(); |
| |
| DynamicCluster cluster = dockerHost.getDockerContainerCluster(); |
| Entity added = cluster.addNode(machine, flags); |
| if (added == null) { |
| throw new NoMachinesAvailableException(String.format("Failed to create container at %s", dockerHost)); |
| } else { |
| Entities.invokeEffector(callerContext, added, Startable.START, MutableMap.of("locations", ImmutableList.of(machine))).getUnchecked(); |
| } |
| StubContainer container = (StubContainer) added; |
| |
| return container.getDynamicLocation(); |
| } |
| |
| @Override |
| public void release(StubContainerLocation machine) { |
| DynamicCluster cluster = dockerHost.getDockerContainerCluster(); |
| StubContainer container = machine.getOwner(); |
| if (cluster.removeMember(container)) { |
| LOG.info("Docker Host {}: member {} released", dockerHost, machine); |
| } else { |
| LOG.warn("Docker Host {}: member {} not found for release", dockerHost, machine); |
| } |
| |
| // Now close and unmange the container |
| try { |
| container.stop(); |
| machine.close(); |
| } catch (Exception e) { |
| LOG.warn("Error stopping container: " + container, e); |
| Exceptions.propagateIfFatal(e); |
| } finally { |
| Entities.unmanage(container); |
| Locations.unmanage(machine); |
| } |
| } |
| |
| @Override |
| public MachineProvisioningLocation<StubContainerLocation> newSubLocation(Map<?, ?> newFlags) { |
| return this; |
| } |
| |
| @Override |
| public Map<String, Object> getProvisioningFlags(Collection<String> tags) { |
| return ImmutableMap.<String, Object>of(); |
| } |
| } |