266 lines
12 KiB
Java
266 lines
12 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import com.google.common.base.Optional;
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import org.jclouds.ContextBuilder;
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import org.jclouds.net.domain.IpProtocol;
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import org.jclouds.openstack.nova.v2_0.NovaApi;
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import org.jclouds.openstack.nova.v2_0.domain.*;
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import org.jclouds.openstack.nova.v2_0.extensions.FloatingIPApi;
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import org.jclouds.openstack.nova.v2_0.extensions.KeyPairApi;
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import org.jclouds.openstack.nova.v2_0.extensions.SecurityGroupApi;
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import org.jclouds.openstack.nova.v2_0.features.FlavorApi;
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import org.jclouds.openstack.nova.v2_0.features.ImageApi;
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import org.jclouds.openstack.nova.v2_0.features.ServerApi;
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import org.jclouds.openstack.nova.v2_0.options.CreateServerOptions;
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import org.jclouds.openstack.nova.v2_0.predicates.ServerPredicates;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.nio.file.attribute.PosixFilePermission;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.concurrent.TimeUnit;
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import java.util.stream.Collectors;
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import static java.lang.System.out;
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class GettingStarted {
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public static void main(String[] args) throws IOException {
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out.println("=============================");
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// # step-1
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String provider = "openstack-nova";
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String identity = "your_project_name_or_id:your_auth_username";
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// NB: Do not check this file into source control with a real password in it!
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String credential = "your_auth_password";
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String authUrl = "http://controller:5000/v2.0/";
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NovaApi conn = ContextBuilder.newBuilder(provider)
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.endpoint(authUrl)
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.credentials(identity, credential)
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.buildApi(NovaApi.class);
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String region = conn.getConfiguredRegions().iterator().next();
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out.println("Running in region: " + region);
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// # step-2
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ImageApi imageApi = conn.getImageApi(region);
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out.println("Images in region:");
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imageApi.list().concat().forEach(image -> out.println(" " + image.getName()));
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// # step-3
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FlavorApi flavorApi = conn.getFlavorApi(region);
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out.println("Flavors in region:");
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flavorApi.list().concat().forEach(flavor -> out.println(" " + flavor.getName()));
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// # step-4
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String imageId = "778e7b2e-4e67-44eb-9565-9c920e236dfd";
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Image retrievedImage = conn.getImageApi(region).get(imageId);
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out.println(retrievedImage.toString());
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// # step-5
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String flavorId = "639b8b2a-a5a6-4aa2-8592-ca765ee7af63";
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Flavor flavor = conn.getFlavorApi(region).get(flavorId);
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out.println(flavor.toString());
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// # step-6
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String testingInstance = "testingInstance";
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ServerCreated testInstance = conn.getServerApi(region).create(testingInstance, imageId, flavorId);
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out.println("Server created. ID: " + testInstance.getId());
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// # step-7
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ServerApi serverApi = conn.getServerApi(region);
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out.println("Instances in region:");
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serverApi.list().concat().forEach(instance -> out.println(" " + instance));
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// # step-8
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if (serverApi.delete(testInstance.getId())) {
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out.println("Server " + testInstance.getId() + " being deleted, please wait.");
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ServerPredicates.awaitStatus(serverApi, Server.Status.DELETED, 600, 5).apply(testInstance.getId());
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serverApi.list().concat().forEach(instance -> out.println(" " + instance));
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} else {
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out.println("Server not deleted.");
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}
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// # step-9
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String pub_key_file = "id_rsa";
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String privateKeyFile = "~/.ssh/" + pub_key_file;
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Optional<? extends KeyPairApi> keyPairApiExtension = conn.getKeyPairApi(region);
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if (keyPairApiExtension.isPresent()) {
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out.println("Checking for existing SSH keypair...");
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KeyPairApi keyPairApi = keyPairApiExtension.get();
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boolean keyPairFound = keyPairApi.get(pub_key_file) != null;
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if (keyPairFound) {
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out.println("Keypair " + pub_key_file + " already exists.");
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} else {
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out.println("Creating keypair.");
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KeyPair keyPair = keyPairApi.create(pub_key_file);
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try {
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Files.write(Paths.get(privateKeyFile), keyPair.getPrivateKey().getBytes());
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out.println("Wrote " + privateKeyFile + ".");
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// set file permissions to 600
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Set<PosixFilePermission> permissions = new HashSet<>();
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permissions.add(PosixFilePermission.OWNER_READ);
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permissions.add(PosixFilePermission.OWNER_WRITE);
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Files.setPosixFilePermissions(Paths.get(privateKeyFile), permissions);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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out.println("Existing keypairs:");
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keyPairApi.list().forEach(keyPair -> out.println(" " + keyPair));
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} else {
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out.println("No keypair extension present; skipping keypair checks.");
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}
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// # step-10
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String securityGroupName = "all-in-one";
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Optional<? extends SecurityGroupApi> securityGroupApiExtension = conn.getSecurityGroupApi(region);
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if (securityGroupApiExtension.isPresent()) {
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out.println("Checking security groups.");
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SecurityGroupApi securityGroupApi = securityGroupApiExtension.get();
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boolean securityGroupFound = false;
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for (SecurityGroup securityGroup : securityGroupApi.list()) {
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securityGroupFound = securityGroupFound || securityGroup.getName().equals(securityGroupName);
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}
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if (securityGroupFound) {
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out.println("Security group " + securityGroupName + " already exists.");
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} else {
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out.println("Creating " + securityGroupName + "...");
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SecurityGroup securityGroup = securityGroupApi.createWithDescription(securityGroupName,
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securityGroupName + " network access for all-in-one application.");
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Ingress sshIngress = Ingress.builder().fromPort(22).ipProtocol(IpProtocol.TCP).toPort(22).build();
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Ingress webIngress = Ingress.builder().fromPort(80).ipProtocol(IpProtocol.TCP).toPort(80).build();
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securityGroupApi.createRuleAllowingCidrBlock(securityGroup.getId(), sshIngress, "0.0.0.0/0");
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securityGroupApi.createRuleAllowingCidrBlock(securityGroup.getId(), webIngress, "0.0.0.0/0");
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}
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out.println("Existing Security Groups: ");
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for (SecurityGroup thisSecurityGroup : securityGroupApi.list()) {
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out.println(" " + thisSecurityGroup);
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thisSecurityGroup.getRules().forEach(rule -> out.println(" " + rule));
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}
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} else {
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out.println("No security group extension present; skipping security group checks.");
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}
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// # step-11
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String ex_userdata = "#!/usr/bin/env bash\n" +
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" curl -L -s https://opendev.org/openstack/faafo/raw/contrib/install.sh | bash -s -- \\\n" +
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" -i faafo -i messaging -r api -r worker -r demo\n";
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// # step-12
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out.println("Checking for existing instance...");
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String instanceName = "all-in-one";
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Server allInOneInstance = null;
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for (Server thisInstance : serverApi.listInDetail().concat()) {
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if (thisInstance.getName().equals(instanceName)) {
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allInOneInstance = thisInstance;
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}
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}
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if (allInOneInstance != null) {
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out.println("Instance " + instanceName + " already exists. Skipping creation.");
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} else {
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out.println("Creating instance...");
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CreateServerOptions allInOneOptions = CreateServerOptions.Builder
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.keyPairName(pub_key_file)
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.securityGroupNames(securityGroupName)
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// If not running in a single-tenant network this where you add your network...
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// .networks("79e8f822-99e1-436f-a62c-66e8d3706940")
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.userData(ex_userdata.getBytes());
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ServerCreated allInOneInstanceCreated = serverApi.create(instanceName, imageId, flavorId, allInOneOptions);
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ServerPredicates.awaitActive(serverApi).apply(allInOneInstanceCreated.getId());
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allInOneInstance = serverApi.get(allInOneInstanceCreated.getId());
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out.println("Instance created: " + allInOneInstance.getId());
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}
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out.println("Existing instances:");
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serverApi.listInDetail().concat().forEach(instance -> out.println(" " + instance.getName()));
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// # step-13
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out.println("Checking for unused floating IP's...");
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FloatingIP unusedFloatingIP = null;
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if (conn.getFloatingIPApi(region).isPresent()) {
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FloatingIPApi floatingIPApi = conn.getFloatingIPApi(region).get();
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List<FloatingIP> freeIP = floatingIPApi.list().toList().stream().filter(
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floatingIp -> floatingIp.getInstanceId() == null).collect(Collectors.toList());
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if (freeIP.size() > 0) {
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out.println("The following IPs are available:");
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freeIP.forEach(floatingIP -> out.println(" " + floatingIP.getIp()));
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unusedFloatingIP = freeIP.get(0);
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} else {
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out.println("Creating new floating IP.... ");
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unusedFloatingIP = floatingIPApi.create();
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}
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if (unusedFloatingIP != null) {
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out.println("Using: " + unusedFloatingIP.getIp());
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}
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} else {
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out.println("No floating ip extension present; skipping floating ip creation.");
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}
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// # step-14
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out.println(allInOneInstance.getAddresses());
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if (allInOneInstance.getAccessIPv4() != null) {
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out.println("Public IP already assigned. Skipping attachment.");
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} else if (unusedFloatingIP != null) {
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out.println("Attaching new IP, please wait...");
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// api must be present if we have managed to allocate a floating IP
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conn.getFloatingIPApi(region).get().addToServer(unusedFloatingIP.getIp(), allInOneInstance.getId());
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//This operation takes some indeterminate amount of time; don't move on until it's done.
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while (allInOneInstance.getAccessIPv4() != null) {
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//Objects are not updated "live" so keep checking to make sure it's been added
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try {
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TimeUnit.SECONDS.sleep(1);
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} catch(InterruptedException ex) {
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out.println( "Awakened prematurely." );
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}
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allInOneInstance = serverApi.get(allInOneInstance.getId());
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}
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}
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// # step-15
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out.print("Be patient: all going well, the Fractals app will soon be available at http://" + allInOneInstance.getAccessIPv4());
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// # step-16
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}
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} |