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EC2 Discover: Support filtering instances by tags, closes #551.

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This commit is contained in:
kimchy 2010-12-16 05:14:49 +02:00
parent ff0eeb3d1a
commit 698f67a31a
1 changed files with 33 additions and 0 deletions
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33
plugins/cloud/aws/src/main/java/org/elasticsearch/discovery/ec2/AwsEc2UnicastHostsProvider.java
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@ -23,6 +23,7 @@ import com.amazonaws.services.ec2.AmazonEC2;
import com.amazonaws.services.ec2.model.*;
import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.collect.ImmutableMap;
import org.elasticsearch.common.collect.ImmutableSet;
import org.elasticsearch.common.collect.Lists;
import org.elasticsearch.common.collect.Sets;
@ -35,6 +36,7 @@ import org.elasticsearch.discovery.zen.ping.unicast.UnicastHostsProvider;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
@ -57,6 +59,8 @@ public class AwsEc2UnicastHostsProvider extends AbstractComponent implements Uni
private final ImmutableSet<String> groups;
private final ImmutableMap<String, String> tags;
private final ImmutableSet<String> availabilityZones;
private final HostType hostType;
@ -71,6 +75,8 @@ public class AwsEc2UnicastHostsProvider extends AbstractComponent implements Uni
this.bindAnyGroup = componentSettings.getAsBoolean("any_group", true);
this.groups = ImmutableSet.copyOf(componentSettings.getAsArray("groups"));
this.tags = componentSettings.getByPrefix("tag.").getAsMap();
Set<String> availabilityZones = Sets.newHashSet(componentSettings.getAsArray("availability_zones"));
if (componentSettings.get("availability_zones") != null) {
availabilityZones.addAll(Strings.commaDelimitedListToSet(componentSettings.get("availability_zones")));
@ -110,6 +116,33 @@ public class AwsEc2UnicastHostsProvider extends AbstractComponent implements Uni
continue;
}
}
// see if we need to filter by tags
boolean filterByTag = false;
if (!tags.isEmpty()) {
if (instance.getTags() == null) {
filterByTag = true;
} else {
// check that all tags listed are there on the instance
for (Map.Entry<String, String> entry : tags.entrySet()) {
boolean found = false;
for (Tag tag : instance.getTags()) {
if (entry.getKey().equals(tag.getKey()) && entry.getValue().equals(tag.getValue())) {
found = true;
break;
}
}
if (!found) {
filterByTag = true;
break;
}
}
}
}
if (filterByTag) {
logger.trace("filtering out instance {} based tags {}, not part of {}", instance.getInstanceId(), tags, instance.getTags());
continue;
}
InstanceState state = instance.getState();
if (state.getName().equalsIgnoreCase("pending") || state.getName().equalsIgnoreCase("running")) {
String address = null;