Java tutorial
/* * Copyright 2014-2016 by Cloudsoft Corporation Limited * * 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 clocker.docker.networking.entity.sdn; import java.net.InetAddress; import java.util.List; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.google.common.base.Joiner; import com.google.common.collect.Iterables; import org.apache.brooklyn.api.entity.EntityLocal; import org.apache.brooklyn.entity.software.base.AbstractSoftwareProcessSshDriver; import org.apache.brooklyn.location.ssh.SshMachineLocation; import org.apache.brooklyn.util.collections.MutableList; import org.apache.brooklyn.util.net.Cidr; import org.apache.brooklyn.util.net.Networking; import org.apache.brooklyn.util.text.StringFunctions; public abstract class DockerNetworkAgentSshDriver extends AbstractSoftwareProcessSshDriver implements DockerNetworkAgentDriver { private static final Logger LOG = LoggerFactory.getLogger(SdnAgent.class); public DockerNetworkAgentSshDriver(EntityLocal entity, SshMachineLocation machine) { super(entity, machine); } @Override public List<String> getDockerNetworkCreateOpts() { List<String> opts = MutableList.of(); return opts; } @Override public void createSubnet(String subnetId, Cidr subnetCidr) { Iterable<String> opts = Iterables.transform(getDockerNetworkCreateOpts(), StringFunctions.prepend("--opt ")); getEntity().sensors().get(SdnAgent.DOCKER_HOST) .runDockerCommand(String.format("network create --driver %s %s --subnet=%s %s", getDockerNetworkDriver(), Joiner.on(' ').join(opts), subnetCidr, subnetId)); } @Override public void deleteSubnet(String subnetId) { getEntity().sensors().get(SdnAgent.DOCKER_HOST).runDockerCommand(String.format("network rm %s", subnetId)); } @Override public InetAddress attachNetwork(String containerId, String subnetId) { // Attach the container to the network getEntity().sensors().get(SdnAgent.DOCKER_HOST) .runDockerCommand(String.format("network connect %s %s", subnetId, containerId)); // Look up the container address on the network String ip = getEntity().sensors().get(SdnAgent.DOCKER_HOST).runDockerCommand(String.format( "inspect --format \"{{ .NetworkSettings.Networks.%s.IPAddress }}\" %s", subnetId, containerId)); InetAddress address = Networking.getInetAddressWithFixedName(ip); // Return the containers IP address getEntity().sensors().get(SdnAgent.SDN_PROVIDER).recordContainerAddress(subnetId, address); getEntity().sensors().get(SdnAgent.SDN_PROVIDER).associateContainerAddress(containerId, address); return address; } }