docs/_docs/aws/aws.adoc

= Amazon S3 IP Finder

Amazon S3-based discovery allows Ignite nodes to register their IP addresses on start-up in an Amazon S3 store.
This way other nodes can try to connect to any of the IP addresses stored in S3 and initiate automatic node discovery.
To use S3 based automatic node discovery, you need to configure the `TcpDiscoveryS3IpFinder` type of `ipFinder`.

Here is an example of how to configure Amazon S3 based IP finder:


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tab:XML[]
[source,xml]
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<bean class="org.apache.ignite.configuration.IgniteConfiguration">

  <property name="discoverySpi">
    <bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
      <property name="ipFinder">
        <bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.s3.TcpDiscoveryS3IpFinder">
          <property name="awsCredentials" ref="aws.creds"/>
          <property name="bucketName" value="YOUR_BUCKET_NAME"/>
        </bean>
      </property>
    </bean>
  </property>
</bean>

<!-- AWS credentials. Provide your access key ID and secret access key. -->
<bean id="aws.creds" class="com.amazonaws.auth.BasicAWSCredentials">
<constructor-arg value="YOUR_ACCESS_KEY_ID" />
<constructor-arg value="YOUR_SECRET_ACCESS_KEY" />
</bean>
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tab:Java[]
[source,java]
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TcpDiscoverySpi spi = new TcpDiscoverySpi();

BasicAWSCredentials creds = new BasicAWSCredentials("yourAccessKey", "yourSecreteKey");

TcpDiscoveryS3IpFinder ipFinder = new TcpDiscoveryS3IpFinder();
ipFinder.setAwsCredentials(creds);
ipFinder.setBucketName("yourBucketName");

spi.setIpFinder(ipFinder);

IgniteConfiguration cfg = new IgniteConfiguration();

// Override default discovery SPI.
cfg.setDiscoverySpi(spi);

// Start a node.
Ignition.start(cfg);
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tab:C#/.NET[unsupported]
tab:C++[unsupported]
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You can also use *Instance Profile* for AWS credentials provider.

[tabs]
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tab:XML[]
[source,xml]
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<bean class="org.apache.ignite.configuration.IgniteConfiguration">

  <property name="discoverySpi">
    <bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
      <property name="ipFinder">
        <bean class="org.apache.ignite.spi.discovery.tcp.ipfinder.s3.TcpDiscoveryS3IpFinder">
          <property name="awsCredentialsProvider" ref="aws.creds"/>
          <property name="bucketName" value="YOUR_BUCKET_NAME"/>
        </bean>
      </property>
    </bean>
  </property>
</bean>

<!-- Instance Profile based credentials -->
<bean id="aws.creds" class="com.amazonaws.auth.InstanceProfileCredentialsProvider">
<constructor-arg value="false" />
</bean>
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tab:Java[]
[source,java]
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TcpDiscoverySpi spi = new TcpDiscoverySpi();

AWSCredentialsProvider instanceProfileCreds = new InstanceProfileCredentialsProvider(false);

TcpDiscoveryS3IpFinder ipFinder = new TcpDiscoveryS3IpFinder();
ipFinder.setAwsCredentialsProvider(instanceProfileCreds);
ipFinder.setBucketName("yourBucketName");

spi.setIpFinder(ipFinder);

IgniteConfiguration cfg = new IgniteConfiguration();

// Override default discovery SPI.
cfg.setDiscoverySpi(spi);

// Start a node.
Ignition.start(cfg);
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tab:C#/.NET[unsupported]
tab:C++[unsupported]
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