Challenges Faced
The Customer was looking to run their .NET based application on AWS Cloud. They had multiple websites running. All sites had been developed on a 2-tier architecture with User Interface on a Database layer. All sites under the domains were running on multiple Web servers with SQL Server Standard edition as DB. Customer wanted to migrate their current infrastructure to AWS and looking for the App Maisters team to provide Managed Services.
Project Solution
App Maisters team worked with the customer to understand the current architecture and then designed and implemented the entire infrastructure on AWS using the following:
- Web servers were provisioned under ALB. All the websites were deployed on both the web servers
- All the servers except the RDP server were hosted in private subnet
- Only load balancer and RDP servers were in public subnet
- The web servers had a file server mounted for use during deployments as well as user uploads
- SQL Server Standard License was included as part of the AWS Infra Cost
- Active Directory and DNS were run in High Availability mode across 2 AZ’s, one in an EC2 and one in file server
- AWS S3 was used for any Data / Logs backups.
- NAT Gateway was added which is Highly Available AWS Managed Service.
- Periodic Automatic Snapshots were built in, on successful completion of POC.
- EBS – Extension of Hard disk size was automated to manage cost and data growth requirements.
- AWS CloudWatch was used for monitoring.
- AWS CloudTrail was setup for API and account activity tracking.
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