🎯 Objective
Create an AMI (Amazon Machine Image) from an existing EC2 instance to capture its configuration, OS, and data.
AMI can be used to:
Launch identical EC2 instances
Create backups
Standardize environments
🧠 What is an AMI?
An AMI (Amazon Machine Image) is a template that contains:
Operating System
Installed software
Configuration
Attached EBS snapshots
👉 It allows you to recreate the same server anytime
🏗️ How It Works
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EC2 Instance → AMI → Launch New Instances📊 AMI Components
🛠️ Method 1: Create AMI via AWS Console
1️⃣ Go to EC2 Dashboard
Navigate to:
EC2 → Instances
2️⃣ Select Your Instance
Choose the instance you want to create AMI from
3️⃣ Create Image
Click:
Actions → Image and templates → Create Image
4️⃣ Configure AMI
Fill in:
Image name → Example: my-app-ami
Image description → Optional
No reboot:
❌ Unchecked → safer (recommended)
✅ Checked → faster but may risk data inconsistency
5️⃣ Click Create Image
👉 AWS will:
Create snapshots
Register AMI
🔍 Check AMI Status
Go to:
EC2 → AMIs
Wait until status becomes:
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available🚀 Launch Instance from AMI
1. Go to:EC2 → AMIs
1. Select your AMI
1. Click:Launch instance
⚙️ Method 2: Using AWS CLI
📌 Create AMI
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aws ec2 create-image \
--instance-id i-1234567890abcdef0 \
--name"my-app-ami" \
--no-reboot🔍 Describe AMIs
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aws ec2 describe-images--owners self⚠️ Important Notes
AMI is region-specific
Charges apply for snapshots (EBS storage)
Use consistent naming for versioning
Stop instance (optional) for data consistency
🧪 Example Use Case
👉 You configured:
Nginx
Database
App
Create AMI → launch 10 identical servers instantly 🚀
🧠 DevOps Insight
👉 AMI = Golden Image Strategy
Used for:
Auto Scaling Groups
CI/CD deployments
Immutable infrastructure
⚠️ Common Mistakes
❌ Not waiting for AMI to become available
❌ Using outdated AMI
❌ Ignoring storage costs
❌ Forgetting region limitation
🎯 Result
An AMI has been successfully created from the EC2 instance, enabling quick replication, backup, and scalable deployment of identical environments.