// V2 authentication

OSClientV2 os = OSFactory.builderV2()

                  .endpoint("http://127.0.0.1:5000/v2.0")

                  .credentials("admin","secret")

                  .tenantName("admin")

                  .authenticate();

// V3 authentication

OSClientV3 os = OSFactory.builderV3()

                  .endpoint("http://127.0.0.1:5000/v3")

                  .credentials("admin", "secret", Identifier.byName("Default"))

                  .scopeToProject(Identifier.byName("admin"))

                  .authenticate();

// Create a Server Model Object

Server server = Builders.server()

                        .name("Ubuntu 2")

                        .flavor("large")

                        .image("imageId")

                        .build();

// Boot the Server

Server server = os.compute().servers().boot(server);

// Create a Snapshot

os.compute().servers().createSnapshot("id", "name");

// Create an Image

Image image = os.images().create(Builders.image()

                .name("Cirros 0.3.0 x64")

                .isPublic(true)

                .containerFormat(ContainerFormat.BARE)

                .diskFormat(DiskFormat.QCOW2)

                .build()

                ), Payloads.create(new File("cirros.img")));

// Create a Port

Port port = os.networking().port()

              .create(Builders.port()

              .name("port1")

              .networkId("networkId")

              .fixedIp("52.51.1.253", "subnetId")

              .build());