DevOps And Platforms hosts and maintains several multisite installations of WordPress along with a handful of single site installations and some non-Wordpress sites such as PhpMyAdmin and LAM for systems administration tasks all on a single auto-scaling LAMP stack. DevOps And Platforms maintains a fleet of 4 EC2 instances running inside of a VPC and spanning 2 AZs. All instances are members of an Application Load Balancer which makes use of CloudFront, Global Accelerator and WAF.
Instance launch templates are broken up into two separate groups (autoscaling pools) and deploy different types of instances into separate AZ’s. The two pools of instances provide resiliency by existing in multiple availability zones. Using t2 and t3 small spot EC2 instances allows for extraordinary cost savings, speed, and scalability. The server technology is Ubuntu Linux running Apache 2.4 with virtual hosts, several versions of PHP, and a combination of private certs and letsEncrypt along with a handful of other server technologies and modules.
Database services are provided via a self hosted copy of MySQL on Ubuntu running on a separate reserved small EC2 instance.