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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.provision.maintenance;
import com.yahoo.config.provision.CloudAccount;
import com.yahoo.config.provision.NodeType;
import com.yahoo.jdisc.Metric;
import com.yahoo.transaction.Mutex;
import com.yahoo.vespa.hosted.provision.Node;
import com.yahoo.vespa.hosted.provision.NodeList;
import com.yahoo.vespa.hosted.provision.NodeMutex;
import com.yahoo.vespa.hosted.provision.NodeRepository;
import com.yahoo.vespa.hosted.provision.node.Agent;
import com.yahoo.vespa.hosted.provision.node.Dns;
import com.yahoo.vespa.hosted.provision.node.IP;
import com.yahoo.vespa.hosted.provision.provisioning.FatalProvisioningException;
import com.yahoo.vespa.hosted.provision.provisioning.HostIpConfig;
import com.yahoo.vespa.hosted.provision.provisioning.HostProvisioner;
import com.yahoo.yolean.Exceptions;
import javax.naming.NamingException;
import java.time.Duration;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Resumes provisioning (requests additional IP addresses, updates DNS when IPs are ready) of hosts in state provisioned
*
* @author freva
* @author mpolden
*/
public class HostResumeProvisioner extends NodeRepositoryMaintainer {
private static final Logger log = Logger.getLogger(HostResumeProvisioner.class.getName());
private final HostProvisioner hostProvisioner;
HostResumeProvisioner(NodeRepository nodeRepository, Duration interval, Metric metric, HostProvisioner hostProvisioner) {
super(nodeRepository, interval, metric);
this.hostProvisioner = hostProvisioner;
}
@Override
protected double maintain() {
NodeList allNodes;
// Host and child nodes are written in separate transactions, but both are written while holding the
// unallocated lock. Hold the unallocated lock while reading nodes to ensure we get all the children
// of newly provisioned hosts.
try (Mutex ignored = nodeRepository().nodes().lockUnallocated()) {
allNodes = nodeRepository().nodes().list();
}
NodeList hosts = allNodes.state(Node.State.provisioned).nodeType(NodeType.host, NodeType.confighost, NodeType.controllerhost);
int failures = 0;
for (Node host : hosts) {
try {
HostIpConfig hostIpConfig = hostProvisioner.provision(host);
setIpConfig(host, hostIpConfig);
} catch (IllegalArgumentException | IllegalStateException e) {
log.log(Level.INFO, "Could not provision " + host.hostname() + ", will retry in " +
interval() + ": " + Exceptions.toMessageString(e));
} catch (FatalProvisioningException e) {
// FatalProvisioningException is thrown if node is not found in the cloud, allow for
// some time for the state to propagate
if (host.history().age(clock().instant()).getSeconds() < 30) continue;
failures++;
log.log(Level.SEVERE, "Failed to provision " + host.hostname() + ", failing out the host recursively", e);
nodeRepository().nodes().parkRecursively(
host.hostname(), Agent.HostResumeProvisioner, true, "Failed by HostResumeProvisioner due to provisioning failure");
} catch (RuntimeException e) {
if (e.getCause() instanceof NamingException)
log.log(Level.INFO, "Could not provision " + host.hostname() + ", will retry in " + interval() + ": " + Exceptions.toMessageString(e));
else {
failures++;
log.log(Level.WARNING, "Failed to provision " + host.hostname() + ", will retry in " + interval(), e);
}
}
}
return asSuccessFactorDeviation(hosts.size(), failures);
}
private void setIpConfig(Node host, HostIpConfig hostIpConfig) {
if (hostIpConfig.isEmpty()) return;
hostIpConfig.asMap().forEach((hostname, ipConfig) ->
verifyDns(hostname, host.type(), host.cloudAccount(), ipConfig));
nodeRepository().nodes().performOnRecursively(NodeList.of(host), __ -> true, nodes -> {
List<Node> updated = new ArrayList<>();
for (NodeMutex mutex : nodes.children())
updated.add(nodeRepository().nodes().write(mutex.node().with(hostIpConfig.require(mutex.node().hostname())), mutex));
updated.add(nodeRepository().nodes().write(nodes.parent().node()
.with(hostIpConfig.require(nodes.parent().node().hostname()))
.withExtraId(hostIpConfig.hostId()),
nodes.parent()));
return updated;
});
}
/** Verify DNS configuration of given node */
private void verifyDns(String hostname, NodeType hostType, CloudAccount cloudAccount, IP.Config ipConfig) {
for (String ipAddress : ipConfig.primary()) {
Dns.verify(hostname, ipAddress, hostType, nodeRepository().nameResolver(), cloudAccount, nodeRepository().zone());
}
}
}
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