Subscribe to AWS Public IP Address Changes via Amazon SNS
AWS has previously announced that AWS Public IP Address Ranges are now available through the JSON file form. An extremely popular service, this file allows AWS Direct Connect users can use this file to update route tables to show the prefixes advertised in Direct Connect public connections.
AWS has further enhanced this file by allowing you to subscribe to an Amazon Simple Notification Service topic and get notifications every time the file is updated. You may then use your code to obtain the file and use it to update your local environment.
For more detailed information, check out AWS IP Address Ranges documentation.
Resource-Oriented Bidding for EC2 Spot Instances
AWS has previously introduced the Spot Fleet API, a service that lets you launch and manage groups of instances in one go. The API will then select the EC2 capacity with the lowest price and maintain the requested capacity.
This time, AWS is enhancing the Spot Fleet API through bidding weights, a new functionality that makes it easy to select spot fleets that better suited to your application.
Not only can you now specify a certain number of capacity units for your fleet, you can also determine the type of instances you want. For example, you could set a certain amount of RAM spread across two or more instances, or 120 vCPUS spread across either C3 or C4 instance types.
You may also specify attributes such as compute power, EBS-optimized bandwidth, networking performances, and so on. This lets you get resources of multiple instance types without getting bogged down with the details of specifying instance types.
You may use this new feature by submitting requests to RequestSpotFleet or by using the AWS Command Line Interface.
Need assistance in building the right EC2 Spot Fleet? Contact our experts today at PolarSeven and get the best available advice on cloud computing.
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