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terrraform launch template: Setting root filesystem settings
2 min read
Converting a Launch Configuration to a Launch Template might have a no brainer direct equivalent but in some cases it requires some knowledge of the template we are going to use. That would be the case of the root_block_device dynamic block:
07/06/2022
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AWS: How to get the On Demand price of a EC2 instance using Python and Boto3
3 min read
We can use python with Boto3 to retrieve the current On Demand price for a given instance type.
31/05/2022
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AWS: How to get the Spot price of EC2 Instances using Python and Boto3
2 min read
Running on spot instances can save us a bunch of money on the cloud. It is based on long-term trends in supply and demand. You'll pay the Spot price that's in effect for the time period your instances are running. We can use boto3 to retrieve the current spot price:
26/05/2022
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How to identify when a spot instance receives a termination notice
2 min read
When running spot instances, if AWS needs to reclaim that capacity (or if the current Spot price exceeds our bid price) we will receive a two minutes grace period to be able to save any data we need.
To check is we need to terminate our tasks on the spot instance we can use the instance's metadata
24/05/2022
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Indentify whether we are running an spot instance using AWS CLI
2 min read
On a running instance we might want to be able to identify whether it is a spot or on demand instance. We can use awscli to identify it
23/05/2022
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