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infrastructure/cloud-aws/aws-ec2/SKILL.md

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+---
+name: aws-ec2
+description: Manage EC2 instances, AMIs, and auto-scaling groups. Configure security groups, key pairs, and instance types. Use when deploying compute resources on AWS.
+license: MIT
+metadata:
+  author: devops-skills
+  version: "1.0"
+---
+
+# AWS EC2
+
+Deploy and manage Amazon EC2 compute instances.
+
+## Launch Instance
+
+```bash
+aws ec2 run-instances \
+  --image-id ami-0abcdef1234567890 \
+  --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}]'
+```
+
+## Auto Scaling
+
+```bash
+# Create launch template
+aws ec2 create-launch-template \
+  --launch-template-name web-template \
+  --version-description v1 \
+  --launch-template-data '{
+    "ImageId": "ami-xxx",
+    "InstanceType": "t3.micro"
+  }'
+
+# Create ASG
+aws autoscaling create-auto-scaling-group \
+  --auto-scaling-group-name web-asg \
+  --launch-template LaunchTemplateName=web-template \
+  --min-size 2 --max-size 10 --desired-capacity 2 \
+  --vpc-zone-identifier "subnet-xxx,subnet-yyy"
+```
+
+## User Data
+
+```bash
+#!/bin/bash
+yum update -y
+yum install -y httpd
+systemctl start httpd
+systemctl enable httpd
+```
+
+## Instance Management
+
+```bash
+# List instances
+aws ec2 describe-instances --filters "Name=tag:Name,Values=web*"
+
+# Stop/Start
+aws ec2 stop-instances --instance-ids i-xxx
+aws ec2 start-instances --instance-ids i-xxx
+
+# Create AMI
+aws ec2 create-image --instance-id i-xxx --name "my-ami"
+```
+
+## Best Practices
+
+- Use launch templates
+- Implement auto-scaling
+- Use spot instances for cost savings
+- Regular AMI updates
+- Instance metadata service v2
+
+## Related Skills
+
+- [terraform-aws](../terraform-aws/) - IaC deployment
+- [aws-vpc](../aws-vpc/) - Networking