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Create a Key Pair
You must specify a key pair when you launch an EC2 instance and then specify the private key of the key pair when you connect to the instance. You can create a key pair or use an existing key pair that you’ve used when launching other instances. For more information, see Amazon EC2 Key Pairs in the Amazon EC2 User Guide for Linux Instances.
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Create and initialize a CreateKeyPairRequest instance. Use the withKeyName method to set the key pair name, as follows:
CreateKeyPairRequest createKeyPairRequest = new CreateKeyPairRequest(); createKeyPairRequest.withKeyName(keyName);
Important
Key pair names must be unique. If you attempt to create a key pair with the same key name as an existing key pair, you’ll get an exception.
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Pass the request object to the createKeyPair method. The method returns a CreateKeyPairResult instance, as follows:
CreateKeyPairResult createKeyPairResult = amazonEC2Client.createKeyPair(createKeyPairRequest);
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Call the result object’s getKeyPair method to obtain a KeyPair object. Call the
KeyPair
object’s getKeyMaterial method to obtain the unencrypted PEM-encoded private key, as follows:KeyPair keyPair = new KeyPair(); keyPair = createKeyPairResult.getKeyPair(); String privateKey = keyPair.getKeyMaterial();