org.apache.jclouds.DestroyNodes.java Source code

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Here is the source code for org.apache.jclouds.DestroyNodes.java

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/**
 * Copyright (C) 2016 Ignasi Barrera
 *
 * Licensed 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.jclouds;

import static org.jclouds.compute.predicates.NodePredicates.inGroup;

import java.util.Set;
import java.util.stream.Collectors;

import org.jclouds.ContextBuilder;
import org.jclouds.chef.ChefApi;
import org.jclouds.chef.ChefService;
import org.jclouds.compute.ComputeService;
import org.jclouds.compute.ComputeServiceContext;
import org.jclouds.logging.slf4j.config.SLF4JLoggingModule;
import org.jclouds.sshj.config.SshjSshClientModule;

import com.google.common.collect.ImmutableSet;

public class DestroyNodes {

    public static void main(final String[] args) throws Exception {

        String provider = "google-compute-engine";
        ProviderConfig config = ProviderConfig.load(provider);

        // Create the connection to the compute provider

        ComputeServiceContext ctx = ContextBuilder.newBuilder(provider)
                .credentials(config.identity(), config.credential()).overrides(config.overrides())
                .modules(ImmutableSet.of(new SshjSshClientModule(), new SLF4JLoggingModule()))
                .buildView(ComputeServiceContext.class);

        // Create the connection to the Chef server

        ProviderConfig chefConfig = ProviderConfig.load("chef");
        ChefApi chef = ContextBuilder.newBuilder("chef")
                .endpoint("https://api.chef.io/organizations/apache-jclouds")
                .credentials(chefConfig.identity(), chefConfig.credential()).overrides(chefConfig.overrides())
                .modules(ImmutableSet.of(new SLF4JLoggingModule())).buildApi(ChefApi.class);

        try {

            // Destroy all nodes that belong to the used groups

            ComputeService compute = ctx.getComputeService();

            compute.destroyNodesMatching(inGroup("acna2016-webserver"));
            compute.destroyNodesMatching(inGroup("acna2016-load-balancer"));

            // Delete the information from the Chef server using the Chef API

            ChefService chefService = chef.chefService();

            chefService.deleteAllClientsInList(withPrefix(chef.listClients(), "acna2016"));
            chefService.deleteAllNodesInList(withPrefix(chef.listNodes(), "acna2016"));

            chef.deleteDatabag("bootstrap");

        } finally {
            // Close the connections and free resources
            ctx.close();
            chef.close();
        }
    }

    private static Set<String> withPrefix(Set<String> names, String prefix) {
        return names.stream().filter(n -> n.startsWith(prefix)).collect(Collectors.toSet());
    }
}