Are you preparing for a DevOps interview and wondering how to present your AWS DevOps projects effectively? Whether you're a fresher or an experienced professional, this video is designed to guide you through the key aspects of explaining AWS DevOps projects in an interview. We cover the essential elements that interviewers look for, including project scope, tools and technologies used, challenges faced, and the impact of your contributions. Learn how to articulate your experience in a way that resonates with recruiters and hiring managers. Make your DevOps projects stand out in your next interview!
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Hybrid Cloud Network and Scalable Application Deployment
Objective: Design and implement a hybrid cloud infrastructure on AWS that securely connects an on-premises datacenter with AWS cloud resources, deploying a highly available and scalable web application with a backend RDS database.
Key Components:
Network Connectivity:
VPC Configuration: Created a Virtual Private Cloud (VPC) with a CIDR block of 10.0.0.0/16 or any other
Subnets:
Public Subnet: Deployed in 10.0.1.0/24 for external-facing resources like the web servers.
Private Subnet: Deployed in 10.0.2.0/24 for internal resources like the RDS database.
Internet Gateway: Attached an Internet Gateway to the VPC to enable internet access for resources in the public subnet.
Route Tables: Configured route tables to direct internet-bound traffic from the public subnet to the Internet Gateway, and intra-VPC traffic between subnets.
On-Premises Connectivity:
VPN Gateway: Set up a VPN Gateway to establish a secure connection between the on-premises datacenter and the AWS VPC.
Customer Gateway: Configured the on-premises Customer Gateway device to communicate with the AWS VPN Gateway, ensuring encrypted traffic between on-premises and AWS resources.
Application Deployment:
Auto Scaling Group:
Configured an Auto Scaling Group with a minimum of 3 instances for the web application to handle traffic spikes and ensure high availability.
Implemented health checks to automatically replace unhealthy instances.
Elastic Load Balancer (ELB): Deployed an ELB in front of the Auto Scaling Group to distribute incoming traffic across multiple instances.
Security Groups: Created and applied security groups to the web servers and database to control inbound and outbound traffic, ensuring secure access.
Database Setup:
Amazon RDS: Deployed a Multi-AZ Amazon RDS instance in the private subnet for high availability and fault tolerance.
Database Connectivity: Configured the web application to securely connect to the RDS instance using database credentials stored in AWS Secrets Manager.
Monitoring and Logging:
CloudWatch Monitoring: Enabled Amazon CloudWatch to monitor the health and performance of the application, including CPU usage, memory, and disk I/O of the EC2 instances.
CloudTrail and VPC Flow Logs: Set up AWS CloudTrail and VPC Flow Logs to monitor and log API activity and network traffic within the VPC for security and troubleshooting purposes.
Outcome: Successfully implemented a secure and scalable hybrid cloud environment that integrates on-premises resources with AWS. The architecture ensured high availability and performance of the web application, supported by an Auto Scaling Group and a fault-tolerant RDS database. Monitoring and logging mechanisms were put in place to maintain visibility and operational excellence.
16 сен 2024
