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// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.nodeadmin;
import com.yahoo.concurrent.classlock.ClassLocking;
import com.yahoo.net.HostName;
import com.yahoo.system.ProcessExecuter;
import com.yahoo.vespa.hosted.dockerapi.Docker;
import com.yahoo.vespa.hosted.dockerapi.metrics.MetricReceiverWrapper;
import com.yahoo.vespa.hosted.node.admin.component.AdminComponent;
import com.yahoo.vespa.hosted.node.admin.docker.DockerOperations;
import com.yahoo.vespa.hosted.node.admin.docker.DockerOperationsImpl;
import com.yahoo.vespa.hosted.node.admin.maintenance.StorageMaintainer;
import com.yahoo.vespa.hosted.node.admin.maintenance.acl.AclMaintainer;
import com.yahoo.vespa.hosted.node.admin.nodeagent.NodeAgent;
import com.yahoo.vespa.hosted.node.admin.nodeagent.NodeAgentImpl;
import com.yahoo.vespa.hosted.node.admin.noderepository.NodeRepository;
import com.yahoo.vespa.hosted.node.admin.noderepository.NodeRepositoryImpl;
import com.yahoo.vespa.hosted.node.admin.orchestrator.Orchestrator;
import com.yahoo.vespa.hosted.node.admin.orchestrator.OrchestratorImpl;
import com.yahoo.vespa.hosted.node.admin.util.ConfigServerHttpRequestExecutor;
import com.yahoo.vespa.hosted.node.admin.util.Environment;
import java.time.Clock;
import java.time.Duration;
import java.util.Optional;
import java.util.function.Function;
/**
* Component that manages Docker containers based on some node repository.
*/
public class DockerAdminComponent implements AdminComponent {
private static final Duration NODE_AGENT_SCAN_INTERVAL = Duration.ofSeconds(30);
private static final Duration NODE_ADMIN_CONVERGE_STATE_INTERVAL = Duration.ofSeconds(30);
private final NodeAdminConfig config;
private final Docker docker;
private final MetricReceiverWrapper metricReceiver;
private final ClassLocking classLocking;
private Optional<NodeAdminStateUpdater> nodeAdminStateUpdater = Optional.empty();
public DockerAdminComponent(NodeAdminConfig config,
Docker docker,
MetricReceiverWrapper metricReceiver,
ClassLocking classLocking) {
this.config = config;
this.docker = docker;
this.metricReceiver = metricReceiver;
this.classLocking = classLocking;
}
@Override
public void enable() {
if (nodeAdminStateUpdater.isPresent()) {
return;
}
Environment environment = new Environment();
ConfigServerHttpRequestExecutor requestExecutor =
ConfigServerHttpRequestExecutor.create(environment.getConfigServerUris());
NodeRepository nodeRepository = new NodeRepositoryImpl(requestExecutor);
Orchestrator orchestrator = new OrchestratorImpl(requestExecutor);
Clock clock = Clock.systemUTC();
String dockerHostHostName = HostName.getLocalhost();
ProcessExecuter processExecuter = new ProcessExecuter();
docker.start();
DockerOperations dockerOperations = new DockerOperationsImpl(
docker,
environment,
processExecuter);
StorageMaintainer storageMaintainer = new StorageMaintainer(
dockerOperations,
processExecuter,
metricReceiver,
environment,
clock);
AclMaintainer aclMaintainer = new AclMaintainer(
dockerOperations,
nodeRepository,
dockerHostHostName);
Function<String, NodeAgent> nodeAgentFactory = (hostName) -> new NodeAgentImpl(
hostName,
nodeRepository,
orchestrator,
dockerOperations,
storageMaintainer,
aclMaintainer,
environment,
clock,
NODE_AGENT_SCAN_INTERVAL);
NodeAdmin nodeAdmin = new NodeAdminImpl(
dockerOperations,
nodeAgentFactory,
storageMaintainer,
aclMaintainer,
metricReceiver,
clock);
nodeAdminStateUpdater = Optional.of(new NodeAdminStateUpdater(
nodeRepository,
orchestrator,
storageMaintainer,
nodeAdmin,
dockerHostHostName,
clock,
NODE_ADMIN_CONVERGE_STATE_INTERVAL,
classLocking));
nodeAdminStateUpdater.get().start();
}
@Override
public void disable() {
if (!nodeAdminStateUpdater.isPresent()) {
return;
}
nodeAdminStateUpdater.get().stop();
nodeAdminStateUpdater = Optional.empty();
// TODO: Also stop docker
}
public NodeAdminStateUpdater getNodeAdminStateUpdater() {
return nodeAdminStateUpdater.get();
}
}
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