Launching an AWS EC2 GPU Instance
EC2 asks about creating new connection keys or reusing existing keys at the end of the launch process.
From Launch to Access
Launching an EC2 GPU instance involves two separate decisions. First, during the launch process, you decide whether to create connection keys or reuse keys that already exist. Later, after the instance has launched, you begin access from the EC2 control panel. Keeping these moments separate prevents a common confusion: key management belongs to launching, while connecting begins by working with the selected instance in the control panel.
Connection Key Decisions
At the end of the EC2 launch process, EC2 asks whether you want to create new connection keys or reuse existing keys. For a first EC2 use, create new keys and download them. If keys already exist and are intended for reuse, select the existing keys instead. This decision happens as part of launching the instance; it is separate from the later control-panel action that begins a connection.
Selecting Keys During a First Use
You are using EC2 for the first time and reach the key question at the end of the launch process. What should you do?
Identify the stage: The question appears at the end of the launch process, before the later control-panel connection step.
Choose the first-use path: For a first EC2 use, choose to create new connection keys.
Keep the keys: Download the newly created keys as part of that first-use process.
Create new connection keys and download them. Key selection is complete before you begin connecting from the EC2 control panel.
Booting Before Connection
Launching the instance does not guarantee that a connection will succeed immediately. An EC2 instance may take a few minutes to boot. The boot period belongs between launching the instance and successfully connecting to it, so an early connection attempt can fail simply because the instance is not ready yet.
What do you think happens?
You launch the instance and an immediate connection attempt fails. What is the most appropriate next response?
Reveal answer
Answer: Wait for the instance to boot and retry.
An instance may take a few minutes to boot, so an initial failed attempt may require waiting before trying again.
Beginning the Connection
After the instance has been launched, start the connection from the EC2 control panel. First select the instance you intend to access. Then click Connect. Selecting the instance identifies the resource, and clicking Connect takes you to the instructions for that instance. These actions are ordered: select the instance first, then choose Connect.
Starting Access from the Control Panel
The GPU instance has been launched. Which control-panel sequence begins the connection?
Identify the resource: In the EC2 control panel, select the instance you intend to access.
Begin the connection: With the instance selected, click Connect.
Follow the instance instructions: The Connect action takes you to the instructions for that selected instance.
Select the instance in the EC2 control panel, click Connect, and then follow the instructions for that instance.
When the First Attempt Fails
Treat an initial failed connection attempt as a reason to consider boot time first. If the instance has only just been launched, wait several minutes for it to boot and then retry. The source guidance does not make the first failed attempt a reason to change the launch process immediately. The practical sequence is to allow boot time, then make another connection attempt from the selected instance in the control panel.
Mistakes to Avoid
Treating key selection and connecting as the same step
Key creation or reuse belongs to the launch process. Connection begins later from the EC2 control panel.
Fix:
Handle the key question during launch, then select the launched instance and click Connect in the control panel.Trying to connect without selecting the instance first
The control-panel process is ordered: selecting the instance identifies the intended resource.
Fix:
Select the instance first, then click Connect.Assuming an immediate failure means the process is unusable
An instance may take a few minutes to boot.
Fix:
Wait for the instance to boot and retry the connection.Creating new keys when the intended path is reuse
EC2 provides a choice between creating new connection keys and reusing existing keys at the end of the launch process.
Fix:
Choose the key path that matches the situation: create and download keys for a first EC2 use, or select existing keys for reuse.
Apply the Workflow
You are using EC2 for the first time. At the end of the launch process, EC2 asks about connection keys. After the instance launches, you want to access it, but the first attempt does not succeed. Write the correct sequence of actions, including the key decision, the control-panel action, and the response to the failed first attempt.
Hints
- For a first EC2 use, decide what happens to new connection keys.
- The connection begins by selecting the instance in the EC2 control panel.
- An instance may need a few minutes to boot before you retry.
Expected sequence: create new connection keys and download them; after the instance has launched, select it in the EC2 control panel and click Connect; if the first attempt fails, wait several minutes for booting and retry.
Key Takeaways
- At the end of the launch process, EC2 lets you create new connection keys or select existing keys for reuse.
- For a first EC2 use, create new keys and download them.
- To begin connecting, select the instance in the EC2 control panel and click Connect.
- An instance may take a few minutes to boot, so wait and retry if the initial connection attempt fails.
- Key management occurs during launch, while connection begins from the selected instance in the control panel.