feat: add S3 integration and update AWS configuration for production deployment (#13)

Author: mama-samba-braima

AWS_DEPLOYMENT_CHECKLIST.md

@@ -0,0 +1,92 @@
+# Quick AWS Deployment Checklist
+
+## ✅ What You Need to Do in AWS Console
+
+### 1. Create S3 Bucket
+- Go to **S3** → **Create bucket**
+- Name: `yourcompany-product-images-prod` (unique name)
+- Region: Same as your EC2 (e.g., `us-east-1`)
+- Encryption: Enable (SSE-S3)
+- **Save bucket name**
+
+### 2. Create IAM Policy
+- Go to **IAM** → **Policies** → **Create policy**
+- Use JSON tab, paste:
+```json
+{
+    "Version": "2012-10-17",
+    "Statement": [
+        {
+            "Effect": "Allow",
+            "Action": ["s3:GetObject", "s3:PutObject", "s3:DeleteObject", "s3:HeadObject"],
+            "Resource": "arn:aws:s3:::YOUR-BUCKET-NAME/*"
+        },
+        {
+            "Effect": "Allow",
+            "Action": ["s3:ListBucket"],
+            "Resource": "arn:aws:s3:::YOUR-BUCKET-NAME"
+        }
+    ]
+}
+```
+- Replace `YOUR-BUCKET-NAME` with your bucket name
+- Name: `ProductServiceS3Policy`
+
+### 3. Create IAM Role (Recommended)
+- Go to **IAM** → **Roles** → **Create role**
+- Select **EC2** → **Next**
+- Attach `ProductServiceS3Policy` → **Next**
+- Name: `EC2-S3-Access-Role` → **Create role**
+
+### 4. Attach Role to EC2
+- Go to **EC2** → **Instances**
+- Select your instance → **Actions** → **Security** → **Modify IAM role**
+- Select `EC2-S3-Access-Role` → **Update**
+
+### 5. Update Application Configuration
+
+Create `application-prod.properties` or use environment variables:
+
+```properties
+aws.region=us-east-1
+aws.s3.bucket=your-bucket-name-here
+aws.s3.endpoint-override=
+aws.s3.path-style-enabled=false
+aws.access-key-id=
+aws.secret-access-key=
+```
+
+**Note**: Leave access keys empty if using IAM role (recommended)
+
+### 6. Deploy Application
+```bash
+# Build
+mvn clean package
+
+# Copy to EC2
+scp -i key.pem target/product-service.jar ec2-user@your-ec2-ip:~/app/
+
+# SSH into EC2
+ssh -i key.pem ec2-user@your-ec2-ip
+
+# Run with production config
+cd ~/app
+java -jar product-service.jar --spring.config.location=application-prod.properties
+```
+
+## 🔐 Alternative: Using Access Keys (Less Secure)
+
+If not using IAM role, create IAM user:
+- **IAM** → **Users** → **Create user**
+- Attach `ProductServiceS3Policy`
+- Create access key → **Save keys securely**
+- Set environment variables on EC2:
+```bash
+export AWS_ACCESS_KEY_ID=your-key-id
+export AWS_SECRET_ACCESS_KEY=your-secret-key
+```
+
+---
+
+**See `AWS_DEPLOYMENT_GUIDE.md` for detailed step-by-step instructions.**
+