/*
* 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.location.jclouds;
import org.apache.brooklyn.location.ssh.SshMachineLocation;
import org.apache.brooklyn.util.core.task.DynamicTasks;
import org.apache.brooklyn.util.core.task.ssh.SshTasks;
import org.apache.brooklyn.util.core.task.ssh.SshTasks.OnFailingTask;
import org.jclouds.compute.ComputeService;
import com.google.common.annotations.Beta;
import com.google.common.base.Preconditions;
/**
* Wraps Brooklyn's sudo-tty mitigations in a {@link JcloudsLocationCustomizer} for easy(-ish) consumption
* in YAML blueprints:
*
* <pre>
* name: My App
* brooklyn.config:
* provisioning.properties:
* customizerType: SudoTtyFixingCustomizer
* services: ...
* </pre>
*
* <p>This class should be seen as a temporary workaround and might disappear completely if/when Brooklyn takes care of this automatically.
*
* <p>See
* <a href='http://unix.stackexchange.com/questions/122616/why-do-i-need-a-tty-to-run-sudo-if-i-can-sudo-without-a-password'>http://unix.stackexchange.com/questions/122616/why-do-i-need-a-tty-to-run-sudo-if-i-can-sudo-without-a-password</a>
* for background.
*/
@Beta
public class SudoTtyFixingCustomizer extends BasicJcloudsLocationCustomizer {
@Override
public void customize(JcloudsLocation location, ComputeService computeService, JcloudsMachineLocation machine) {
Preconditions.checkArgument(machine instanceof SshMachineLocation, "machine must be SshMachineLocation, but is %s", machine.getClass());
DynamicTasks.queueIfPossible(SshTasks.dontRequireTtyForSudo((SshMachineLocation)machine, OnFailingTask.FAIL)).orSubmitAndBlock();
DynamicTasks.waitForLast();
}
}