K8s on DigitalOcean might be a solution. K8s can be pretty complex but for a single tenant/single app you can probably skip some of the complexity. Even at 100

K8s on DigitalOcean might be a solution. K8s can be pretty complex but for a single tenant/single app you can probably skip some of the complexity. Even at 100 containers you're probably going to want health checks (some load balancer integration), rolling deploys, metrics, and aggregated logging. Amazon also added support for Docker containers to Lambda. You need to make sure your container implements the correct interface so Lambda can start it which is in their docs