You don't have to do a big-bang style Google thing. You can just invest in some continuous improvement over the next few years: Iteration 0: What you have now.

You don't have to do a big-bang style Google thing. You can just invest in some continuous improvement over the next few years: Iteration 0: What you have now. Iteration 1: A build server builds your artifact, and your EC2 instances download the artifact from the build server. Iteration 2: The build server builds the artifact and builds a container and pushes it to ECR. Your EC2 instances now pull the image into Docker and start it. Iteration 3: You use ECS for basic container orchestration. Your build server instructs your ECS instances to download the image and run them, with blue-green deployments linked to your load balancer. Iteration 4: You set up K8s and your build server instructs it to deploy. I went in a similar trajectory, and I'm at iteration 3 right now, on the verge of moving to K8s. It's your call on how long the timespan is here, and commercial pressures will drive it. It could be 6 months, it could be 3 years.