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In this tutorial, we will build a Private Application Load Balancer (ALB) with:

• ✅ Custom domain: shanvipanda.com

• ✅ HTTPS enabled

• ✅ Self-signed certificate

• ✅ Private DNS using Route53

• ✅ Secure internal access

This is a very important real-world DevOps concept for internal applications inside VPC.

In this tutorial, we will build a Private Application Load Balancer (ALB) with:

• ✅ Custom domain: shanvipanda.com

• ✅ HTTPS enabled

• ✅ Self-signed certificate

• ✅ Private DNS using Route53

• ✅ Secure internal access

This is a very important real-world DevOps concept for internal applications inside VPC.

Architecture Diagram

Flow:

⚠️ Since ALB is private, traffic works only inside VPC.

Step 1: Generate Self-Signed Certificate

We use OpenSSL to generate certificate locally.

openssl req -x509 -newkey rsa:2048 \
-keyout shanvi.key \
-out shanvi.crt \
-days 365 \
-nodes \
-subj ‘//CN=shanvipanda.com’

openssl req -x509 -newkey rsa:2048 \
-keyout shanvi1.key \
-out shanvi1.crt \
-days 365 \
-nodes \
-subj ‘//CN=shanvipanda.net’

openssl x509 -in shanvi.crt -text -noout