Instance metadata and user data in AWS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to retrieve the instance ID from metadata.

AWS

curl http://169.254.169.254/latest/meta-data/[1]

Drag options to blanks, or click blank then click option'

Auser-data

Binstance-id

Cpublic-ipv4

Dsecurity-groups

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'user-data' instead of 'instance-id' to get instance ID.

The instance ID is accessed via the 'instance-id' path in the metadata service.

2fill in blank

medium

Complete the code to fetch the user data of an EC2 instance.

AWS

curl http://169.254.169.254/latest/[1]

Drag options to blanks, or click blank then click option'

Auser-data

Bhostname

Cami-id

Dinstance-id

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'instance-id' instead of 'user-data' to get user data.

User data is accessed via the 'user-data' path in the metadata service.

3fill in blank

hard

Fix the error in the command to get the public IPv4 address from metadata.

AWS

curl http://169.254.169.254/latest/meta-data/[1]

Drag options to blanks, or click blank then click option'

Apublic-ipv6

Blocal-ipv4

Cprivate-ipv4

Dpublic-ipv4

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'local-ipv4' or 'private-ipv4' which give internal IPs.

The public IPv4 address is accessed via the 'public-ipv4' path.

4fill in blank

hard

Fill both blanks to retrieve the security groups and the AMI ID from metadata.

AWS

curl http://169.254.169.254/latest/meta-data/[1] && curl http://169.254.169.254/latest/meta-data/[2]

Drag options to blanks, or click blank then click option'

Asecurity-groups

Binstance-type

Cami-id

Dpublic-hostname

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing 'instance-type' or 'public-hostname' instead of 'ami-id'.

'security-groups' returns the security groups attached to the instance, and 'ami-id' returns the AMI used to launch the instance.

5fill in blank

hard

Fill all three blanks to write a shell script that fetches instance ID, user data, and availability zone.

AWS

#!/bin/bash
INSTANCE_ID=$(curl http://169.254.169.254/latest/meta-data/[1])
USER_DATA=$(curl http://169.254.169.254/latest/[2])
AZ=$(curl http://169.254.169.254/latest/meta-data/[3])
echo "Instance ID: $INSTANCE_ID"
echo "User Data: $USER_DATA"
echo "Availability Zone: $AZ"

Drag options to blanks, or click blank then click option'

Ainstance-id

Buser-data

Cplacement/availability-zone

Dpublic-ipv4

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'public-ipv4' instead of availability zone path.

This script fetches the instance ID, user data, and availability zone from the metadata service using the correct paths.