| /* |
| * 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.effector.ssh; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.concurrent.ExecutionException; |
| |
| import org.apache.brooklyn.api.effector.Effector; |
| import org.apache.brooklyn.api.effector.ParameterType; |
| import org.apache.brooklyn.api.entity.Entity; |
| import org.apache.brooklyn.api.entity.Group; |
| import org.apache.brooklyn.config.ConfigKey; |
| import org.apache.brooklyn.core.config.ConfigKeys; |
| import org.apache.brooklyn.core.config.MapConfigKey; |
| import org.apache.brooklyn.core.effector.AddEffectorInitializerAbstract; |
| import org.apache.brooklyn.core.effector.EffectorBody; |
| import org.apache.brooklyn.core.effector.Effectors; |
| import org.apache.brooklyn.core.effector.Effectors.EffectorBuilder; |
| import org.apache.brooklyn.core.effector.ssh.SshEffectorTasks.SshEffectorTaskFactory; |
| import org.apache.brooklyn.core.entity.Attributes; |
| import org.apache.brooklyn.core.entity.BrooklynConfigKeys; |
| import org.apache.brooklyn.core.entity.Entities; |
| import org.apache.brooklyn.core.entity.lifecycle.Lifecycle; |
| import org.apache.brooklyn.core.location.Locations; |
| import org.apache.brooklyn.core.sensor.ssh.SshCommandSensor; |
| import org.apache.brooklyn.location.ssh.SshMachineLocation; |
| import org.apache.brooklyn.util.collections.MutableMap; |
| import org.apache.brooklyn.util.core.config.ConfigBag; |
| import org.apache.brooklyn.util.core.json.ShellEnvironmentSerializer; |
| import org.apache.brooklyn.util.core.task.TaskBuilder; |
| import org.apache.brooklyn.util.core.task.Tasks; |
| import org.apache.brooklyn.util.exceptions.Exceptions; |
| import org.apache.brooklyn.util.guava.Maybe; |
| |
| import com.google.common.base.Preconditions; |
| import com.google.common.base.Predicates; |
| import com.google.common.collect.Maps; |
| |
| public final class SshCommandEffector extends AddEffectorInitializerAbstract { |
| |
| public static final ConfigKey<String> EFFECTOR_COMMAND = ConfigKeys.newStringConfigKey("command"); |
| public static final ConfigKey<String> EFFECTOR_EXECUTION_DIR = SshCommandSensor.SENSOR_EXECUTION_DIR; |
| public static final MapConfigKey<Object> EFFECTOR_SHELL_ENVIRONMENT = BrooklynConfigKeys.SHELL_ENVIRONMENT; |
| |
| public enum ExecutionTarget { |
| ENTITY, |
| MEMBERS, |
| CHILDREN |
| } |
| |
| public static final ConfigKey<ExecutionTarget> EXECUTION_TARGET = ConfigKeys.newConfigKey(ExecutionTarget.class, "executionTarget", |
| "Where this command should run; by default on this 'entity'; alternatively on all 'children' or all 'members' (if it's a group); " |
| + "in the latter cases the sets are filtered by entities which have a machine and are not stopping.", |
| ExecutionTarget.ENTITY); |
| |
| public SshCommandEffector() {} |
| public SshCommandEffector(ConfigBag params) { |
| super(params); |
| } |
| |
| @Override |
| public EffectorBuilder<String> newEffectorBuilder() { |
| EffectorBuilder<String> eff = newAbstractEffectorBuilder(String.class); |
| eff.impl(new Body(eff.buildAbstract(), initParams())); |
| return eff; |
| } |
| |
| protected static class Body extends EffectorBody<String> { |
| private final Effector<?> effector; |
| private final String command; |
| private final Map<String, Object> shellEnv; |
| private final String executionDir; |
| private final ExecutionTarget executionTarget; |
| |
| public Body(Effector<?> eff, ConfigBag params) { |
| this.effector = eff; |
| this.command = Preconditions.checkNotNull(params.get(EFFECTOR_COMMAND), "SSH command must be supplied when defining this effector"); |
| this.shellEnv = params.get(EFFECTOR_SHELL_ENVIRONMENT); |
| this.executionDir = params.get(EFFECTOR_EXECUTION_DIR); |
| this.executionTarget = params.get(EXECUTION_TARGET); |
| } |
| |
| @Override |
| public String call(ConfigBag params) { |
| switch (executionTarget) { |
| case ENTITY: |
| return callOne(params); |
| case MEMBERS: |
| return callMany(((Group)entity()).getMembers(), params); |
| case CHILDREN: |
| return callMany(entity().getChildren(), params); |
| default: |
| throw new IllegalStateException("Unknown value passed as execution target: " + executionTarget); |
| } |
| } |
| |
| public String callOne(ConfigBag params) { |
| return queue( |
| makePartialTaskFactory(params, entity()) |
| .summary("effector "+effector.getName()+" ssh call") |
| ).get(); |
| } |
| public String callMany(Collection<Entity> targets, ConfigBag params) { |
| TaskBuilder<Object> ptb = Tasks.builder().parallel(true).displayName("effector "+effector.getName()+" ssh to targets"); |
| for (Entity target: targets) { |
| if (Entities.isNoLongerManaged(target)) continue; |
| |
| Lifecycle state = target.getAttribute(Attributes.SERVICE_STATE_ACTUAL); |
| if (state==Lifecycle.STOPPING || state==Lifecycle.STOPPED) continue; |
| |
| Maybe<SshMachineLocation> machine = Locations.findUniqueSshMachineLocation(target.getLocations()); |
| if (machine.isAbsent()) continue; |
| |
| SshEffectorTaskFactory<String> t = makePartialTaskFactory(params, target); |
| t.summary("effector "+effector.getName()+" at "+target); |
| t.machine( machine.get() ); |
| |
| ptb.add(t.newTask()); |
| } |
| queue(ptb.build()).getUnchecked(); |
| return null; |
| } |
| |
| public SshEffectorTaskFactory<String> makePartialTaskFactory(ConfigBag params, Entity entity) { |
| String sshCommand = SshCommandSensor.makeCommandExecutingInDirectory(command, executionDir, entity); |
| |
| MutableMap<String, Object> env = MutableMap.of(); |
| |
| // Set all declared parameters, including default values |
| for (ParameterType<?> param : effector.getParameters()) { |
| env.addIfNotNull(param.getName(), params.get(Effectors.asConfigKey(param))); |
| } |
| |
| // Set things from the entity's defined shell environment, if applicable |
| env.putAll(entity.config().get(BrooklynConfigKeys.SHELL_ENVIRONMENT)); |
| |
| // Set the parameters we've been passed. This will repeat declared parameters but to no harm, |
| // it may pick up additional values (could be a flag defining whether this is permitted or not.) |
| // Make sure we do not include the shell.env here again, by filtering it out. |
| env.putAll(Maps.filterKeys(params.getAllConfig(), Predicates.not(Predicates.equalTo(EFFECTOR_SHELL_ENVIRONMENT.getName())))); |
| |
| // Add the shell environment entries from the effector configuration |
| if (shellEnv != null) env.putAll(shellEnv); |
| |
| // Add the shell environment entries from our invocation |
| Map<String, Object> effectorEnv = params.get(EFFECTOR_SHELL_ENVIRONMENT); |
| if (effectorEnv != null) env.putAll(effectorEnv); |
| |
| // Try to resolve the configuration in the env Map |
| try { |
| env = MutableMap.copyOf(resolveEnv(env)); |
| } catch (InterruptedException | ExecutionException e) { |
| Exceptions.propagateIfFatal(e); |
| } |
| |
| // Execute the effector with the serialized environment strings |
| ShellEnvironmentSerializer serializer = new ShellEnvironmentSerializer(entity().getManagementContext()); |
| |
| return SshEffectorTasks.ssh(sshCommand) |
| .requiringZeroAndReturningStdout() |
| .environmentVariables(serializer.serialize(env)); |
| } |
| |
| @SuppressWarnings("unchecked") |
| private Map<String, Object> resolveEnv(MutableMap<String, Object> env) throws ExecutionException, InterruptedException { |
| return (Map<String, Object>) Tasks.resolveDeepValueWithoutCoercion(env, entity().getExecutionContext()); |
| } |
| } |
| } |