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AWS EC2 virtual machine management for instances, AMIs, and networking. Use when launching instances, configuring security groups, managing key pairs, troubleshooting connectivity, or automating instance lifecycle.
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npx skills add https://github.com/ComeOnOliver/skillshub --skill ec2명령은 한 줄로 유지됩니다. 복사하기 전에 가로로 스크롤해 전체 내용을 확인하세요.
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SOC 직업 분류 기준
SKILL.md 표시 중
| name | ec2 |
| description | AWS EC2 virtual machine management for instances, AMIs, and networking. Use when launching instances, configuring security groups, managing key pairs, troubleshooting connectivity, or automating instance lifecycle. |
| last_updated | 2026-01-07 |
| doc_source | https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ |
Amazon Elastic Compute Cloud (EC2) provides resizable compute capacity in the cloud. Launch virtual servers, configure networking and security, and manage storage.
| Category | Example | Use Case |
|---|---|---|
| General Purpose | t3, m6i | Web servers, dev environments |
| Compute Optimized | c6i | Batch processing, gaming |
| Memory Optimized | r6i | Databases, caching |
| Storage Optimized | i3, d3 |
| Data warehousing |
| Accelerated | p4d, g5 | ML, graphics |
| Option | Description |
|---|---|
| On-Demand | Pay by the hour/second |
| Reserved | 1-3 year commitment, up to 72% discount |
| Spot | Unused capacity, up to 90% discount |
| Savings Plans | Flexible commitment-based discount |
Template containing OS, software, and configuration for launching instances.
Virtual firewalls controlling inbound and outbound traffic.
AWS CLI:
# Create key pair
aws ec2 create-key-pair \
--key-name my-key \
--query 'KeyMaterial' \
--output text > my-key.pem
chmod 400 my-key.pem
# Create security group
aws ec2 create-security-group \
--group-name web-server-sg \
--description "Web server security group" \
--vpc-id vpc-12345678
# Allow SSH and HTTP
aws ec2 authorize-security-group-ingress \
--group-id sg-12345678 \
--protocol tcp \
--port 22 \
--cidr 10.0.0.0/8
aws ec2 authorize-security-group-ingress \
--group-id sg-12345678 \
--protocol tcp \
--port 80 \
--cidr 0.0.0.0/0
# Launch instance
aws ec2 run-instances \
--image-id ami-0123456789abcdef0 \
--instance-type t3.micro \
--key-name my-key \
--security-group-ids sg-12345678 \
--subnet-id subnet-12345678 \
--tag-specifications 'ResourceType=instance,Tags=[{Key=Name,Value=web-server}]'
boto3:
import boto3
ec2 = boto3.resource('ec2')
instances = ec2.create_instances(
ImageId='ami-0123456789abcdef0',
InstanceType='t3.micro',
KeyName='my-key',
SecurityGroupIds=['sg-12345678'],
SubnetId='subnet-12345678',
MinCount=1,
MaxCount=1,
TagSpecifications=[{
'ResourceType': 'instance',
'Tags': [{'Key': 'Name', 'Value': 'web-server'}]
}]
)
instance = instances[0]
instance.wait_until_running()
instance.reload()
print(f"Instance ID: {instance.id}")
print(f"Public IP: {instance.public_ip_address}")
aws ec2 run-instances \
--image-id ami-0123456789abcdef0 \
--instance-type t3.micro \
--key-name my-key \
--security-group-ids sg-12345678 \
--subnet-id subnet-12345678 \
--user-data '#!/bin/bash
yum update -y
yum install -y httpd
systemctl start httpd
systemctl enable httpd
echo "<h1>Hello from $(hostname)</h1>" > /var/www/html/index.html
'
# Create instance profile
aws iam create-instance-profile \
--instance-profile-name web-server-profile
aws iam add-role-to-instance-profile \
--instance-profile-name web-server-profile \
--role-name web-server-role
# Launch with profile
aws ec2 run-instances \
--image-id ami-0123456789abcdef0 \
--instance-type t3.micro \
--iam-instance-profile Name=web-server-profile \
...
aws ec2 create-image \
--instance-id i-1234567890abcdef0 \
--name "my-custom-ami-$(date +%Y%m%d)" \
--description "Custom AMI with web server" \
--no-reboot
aws ec2 request-spot-instances \
--instance-count 1 \
--type "one-time" \
--launch-specification '{
"ImageId": "ami-0123456789abcdef0",
"InstanceType": "c5.large",
"KeyName": "my-key",
"SecurityGroupIds": ["sg-12345678"],
"SubnetId": "subnet-12345678"
}' \
--spot-price "0.05"
# Create volume
aws ec2 create-volume \
--availability-zone us-east-1a \
--size 100 \
--volume-type gp3 \
--iops 3000 \
--throughput 125 \
--encrypted
# Attach to instance
aws ec2 attach-volume \
--volume-id vol-12345678 \
--instance-id i-1234567890abcdef0 \
--device /dev/sdf
# Create snapshot
aws ec2 create-snapshot \
--volume-id vol-12345678 \
--description "Daily backup"
| Command | Description |
|---|---|
aws ec2 run-instances | Launch instances |
aws ec2 describe-instances | List instances |
aws ec2 start-instances | Start stopped instances |
aws ec2 stop-instances | Stop running instances |
aws ec2 reboot-instances | Reboot instances |
aws ec2 terminate-instances | Terminate instances |
aws ec2 modify-instance-attribute | Modify instance settings |
| Command | Description |
|---|---|
aws ec2 create-security-group | Create security group |
aws ec2 describe-security-groups | List security groups |
aws ec2 authorize-security-group-ingress | Add inbound rule |
aws ec2 revoke-security-group-ingress | Remove inbound rule |
aws ec2 authorize-security-group-egress | Add outbound rule |
| Command | Description |
|---|---|
aws ec2 describe-images | List AMIs |
aws ec2 create-image | Create AMI from instance |
aws ec2 copy-image | Copy AMI to another region |
aws ec2 deregister-image | Delete AMI |
| Command | Description |
|---|---|
aws ec2 create-volume | Create EBS volume |
aws ec2 attach-volume | Attach to instance |
aws ec2 detach-volume | Detach from instance |
aws ec2 create-snapshot | Create snapshot |
aws ec2 modify-volume | Resize/modify volume |
# Require IMDSv2
aws ec2 modify-instance-metadata-options \
--instance-id i-1234567890abcdef0 \
--http-tokens required \
--http-endpoint enabled
Checklist:
# Check security group
aws ec2 describe-security-groups --group-ids sg-12345678
# Check instance state
aws ec2 describe-instances \
--instance-ids i-1234567890abcdef0 \
--query "Reservations[].Instances[].{State:State.Name,PublicIP:PublicIpAddress}"
Use Session Manager instead:
aws ssm start-session --target i-1234567890abcdef0
Causes:
# Check instance state reason
aws ec2 describe-instances \
--instance-ids i-1234567890abcdef0 \
--query "Reservations[].Instances[].StateReason"
Debug:
# Check instance status
aws ec2 describe-instance-status \
--instance-ids i-1234567890abcdef0
# Get console output
aws ec2 get-console-output \
--instance-id i-1234567890abcdef0
# Get screenshot (for Windows/GUI issues)
aws ec2 get-console-screenshot \
--instance-id i-1234567890abcdef0
# Enable detailed monitoring
aws ec2 monitor-instances \
--instance-ids i-1234567890abcdef0
# Check CloudWatch metrics
aws cloudwatch get-metric-statistics \
--namespace AWS/EC2 \
--metric-name CPUUtilization \
--dimensions Name=InstanceId,Value=i-1234567890abcdef0 \
--start-time $(date -d '1 hour ago' -u +%Y-%m-%dT%H:%M:%SZ) \
--end-time $(date -u +%Y-%m-%dT%H:%M:%SZ) \
--period 300 \
--statistics Average