Can script all that yourself if you properly document it so somebody else can come along a figure out exactly what is going on should you disappear/quit/call in sick/hit by bus.

Elastic Search 'beats' ( https://www.elastic.co/products/beats ) can do all the monitoring/stats, deploying snapshots to multiple servers can also be automated in Go or drop a Go binary on the server for some kind of Command&Control architecture for continuous remote maint, starting/stopping containers ect (assuming all security precautions have been considered).

This worked for a deployment of ~75 docker containers ymmv

There are many options. You can use Googles GKE which manages the k8s cluster for you. You can use kops or Hyperkube for bare metal/aws.

Host monitoring you would utilize Kubernetes daemonsets which install whatever monitoring tool you want to use onto every single node in a cluster.