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A short class with Sarah and her students. The other ways are under More.
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Welcome, everyone! Today, we're diving into how to manage EC2 instances. Can anyone tell me what we mean by 'launching' an EC2 instance?
Is it when we create a new instance from an AMI?
Exactly! Launching an instance involves using an Amazon Machine Image, or AMI, to configure the operating system and software. What happens when we stop an instance?
We keep the data but just turn it off?
Correct! Stopping keeps your instance but turns it off, so you still retain your configurations and any EBS volumes attached. What's the difference when we terminate an instance?
Terminating deletes everything, right?
Yes, terminating an instance deletes it completely, and all data is lost unless backed up. Great job, everyone! Remembering these actions is crucial!
Let's look at the states an EC2 instance can be in. Can anyone name them?
Running, stopped, and terminated?
Great! Now, when an instance is in the 'stopped' state, are we still being charged for it?
Only for the EBS storage, right?
Exactly! While the instance is stopped, we don’t incur costs for the instance itself, just the storage. Who can tell me what happens when we reboot an instance?
It just restarts without losing any data or configurations?
That's correct! Rebooting is like rebooting your computer. It can help with updates or troubleshooting.
Let’s apply what we learned. When would you choose to stop an instance?
If I'm done using it for now and want to save costs!
Exactly! Stopping can save costs while retaining data. How about rebooting?
If I made changes to software or need to troubleshoot?
Yes! What about terminating? When would that be a good choice?
When I no longer need the instance and want to free up resources?
Exactly! Great discussion today! Remember the costs associated with each action to manage resources effectively.
To stop's to pause, to reboot's to restart, but to term, my friend, is to tear apart.
Imagine a gardener who tends to each plant. Stopping means taking care of the plant, rebooting is watering it again, but terminating is removing it from the garden.
Remember the 'SRT' method: S = Stop (power off), R = Reboot (restart), T = Terminate (delete permanently).
Use 'SRT' - S for Stop, R for Reboot, T for Terminate to remember these actions.
Term
What is stopping an EC2 instance?
Click to flip
Term
What does terminating an EC2 instance mean?
Click to flip
Term
What is the command to reboot an EC2 instance?
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A virtual server in Amazon's Elastic Compute Cloud (EC2) that allows you to run applications as you would on a physical server.
A pre-configured template for launching EC2 instances that includes an operating system and required software.
Turning off an EC2 instance while retaining its configurations and any data stored on it.
Permanently deleting an EC2 instance, which results in loss of all data unless backed up.
Restarting an EC2 instance, which helps apply updates or troubleshoot without losing configurations.
This section explains the fundamental commands used to manage Amazon EC2 instances, including launching, starting, stopping, rebooting, and terminating them.
The section provides an overview of EC2 instance management commands, detailing the processes of launching instances using an AMI, starting, stopping, rebooting, and terminating them, and the implications of each action.
This section delves into the essential commands for managing Amazon EC2 instances, a crucial component of AWS compute services. EC2 allows users to rent virtual servers to run applications in the cloud, and managing these instances efficiently is vital for optimal operation and cost control.
Understanding these actions helps maintain control over your cloud resources, optimizing performance and costs throughout your usage of AWS compute services.