io.brooklyn.entity.nosql.etcd.EtcdProxySshDriver Maven / Gradle / Ivy

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/*
 * 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 io.brooklyn.entity.nosql.etcd;

import static java.lang.String.format;

import java.util.List;
import java.util.Map;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;

import org.apache.brooklyn.core.sensor.DependentConfiguration;
import org.apache.brooklyn.location.ssh.SshMachineLocation;
import org.apache.brooklyn.util.collections.MutableMap;
import org.apache.brooklyn.util.core.task.DynamicTasks;
import org.apache.brooklyn.util.os.Os;

public class EtcdProxySshDriver extends EtcdNodeSshDriver implements EtcdProxyDriver {

    public EtcdProxySshDriver(final EtcdNodeImpl entity, final SshMachineLocation machine) {
        super(entity, machine);
    }

    @Override
    public EtcdProxyImpl getEntity() {
        return EtcdProxyImpl.class.cast(super.getEntity());
    }

    protected Map getPortMap() {
        return MutableMap.of("clientPort", getEntity().getClientPort());
    }

    @Override
    public void launch() {
        DynamicTasks.queueIfPossible(DependentConfiguration.attributeWhenReady(entity, EtcdNode.ETCD_NODE_HAS_JOINED_CLUSTER))
                .orSubmitAndBlock(entity)
                .andWaitForSuccess();

        String nodes = String.format("%s=%s", getClusterName(), getClusterUrl());

        // Build etcd startup command
        List commands = Lists.newLinkedList();
        commands.add("cd " + getRunDir());
        commands.add(format("%s -bind-addr 0.0.0.0:%d --proxy on --initial-cluster \"%s\" > %s 2>&1 < /dev/null &",
                        Os.mergePathsUnix(getExpandedInstallDir(), "etcd"),
                        getEntity().getClientPort(),
                        nodes,
                        getLogFileLocation()));

        newScript(ImmutableMap.of(USE_PID_FILE, true), LAUNCHING)
                .body.append(commands)
                .failOnNonZeroResultCode()
                .execute();
    }

    protected String getClusterName() {
        return entity.config().get(EtcdProxy.ETCD_CLUSTER_NAME);
    }

    protected String getClusterUrl() {
        return entity.config().get(EtcdProxy.ETCD_CLUSTER_URL);
    }

    @Override
    public void joinCluster(String nodeName, String nodeAddress) {
    }

    @Override
    public void leaveCluster(String nodeName) {
    }

}