public String getDefaultSshKeyName() {
        return this.defaultSshKeyName;
    }
<p>
A default Amazon EC2 key-pair name. The default value is <code>none</code>. If you specify a key-pair name,
OpsWorks Stacks installs the public key on the instance and you can use the private key with an SSH client to log
in to the instance. For more information, see <a
href="https://docs.aws.amazon.com/opsworks/latest/userguide/workinginstances-ssh.html"> Using SSH to Communicate
with an Instance</a> and <a
href="https://docs.aws.amazon.com/opsworks/latest/userguide/security-ssh-access.html"> Managing SSH Access</a>.
You can override this setting by specifying a different key pair, or no key pair, when you <a
href="https://docs.aws.amazon.com/opsworks/latest/userguide/workinginstances-add.html"> create an instance</a>.
</p>

@return A default Amazon EC2 key-pair name. The default value is <code>none</code>. If you specify a key-pair
        name, OpsWorks Stacks installs the public key on the instance and you can use the private key with an SSH
        client to log in to the instance. For more information, see <a
        href="https://docs.aws.amazon.com/opsworks/latest/userguide/workinginstances-ssh.html"> Using SSH to
        Communicate with an Instance</a> and <a
        href="https://docs.aws.amazon.com/opsworks/latest/userguide/security-ssh-access.html"> Managing SSH
        Access</a>. You can override this setting by specifying a different key pair, or no key pair, when you <a
        href="https://docs.aws.amazon.com/opsworks/latest/userguide/workinginstances-add.html"> create an
        instance</a>.
aws-java-sdk-opsworks/src/main/java/com/amazonaws/services/opsworks/model/UpdateStackRequest.java