We never grant extensions for projects even if the CSP encountered a service downtime.

Students should use spot instances whenever possible, except for services that need to be kept alive for instructor assessment.

You can apply a tag to the spot instance request in AWS, but it will not propagate to the instance when the spot request is satisfied. Therefore, you must tag the instance separately once it has been launched. Students are encouraged to find novel ways to use AWS APIs to automate this process, if they like.

Login EC2

For Ubuntu instances:

chmod 600 ec2-keypair.pem
ssh -i ec2-keypair.pem [email protected]

For other instances, you might have to use ec2-user instead of ubuntu.

Delete EC2 instances

• Terminating your instance is essentially deleting it, it will take some time to get reflected on your dashboard (meaning it won't appear on your instance list table) There is no use of terminated instances.

• Once you terminated your instances, it means you have completely lost that particular instance. But during the time of creation of your instance if have you had enabled the option called Protect against accidental termination. Then you will not be able to terminate without disabling this option.

• But in your instance table if the Instance State column has the value temianted means your instance is deleted and you can no longer use it.

Vertical Scaling

Vertical scaling involves changing the capacity of the resources in the system due to a change in your needs. This typically involves provisioning and switching to resources with more or less capacity such as CPU, cores, memory, etc.