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what & why Let’s say you have a scalable architecture (like a server/worker model), and you want autoscaling to happens automatically based on the workers CPU usage, which is useful is some scenarios. Kubernetes has an Horizontal Pod Autoscaler feature that we can utilize to do just that ! how First, let’s talk requirements. You’ll need : a k8s cluster (k0s, minikube or microk8s), kubectl installed and configured to talk to your cluster metrics-server deployed. This will provide the metrics necessary for the autoscaling algorithm to work. Check on your particular provider how to do so. example architecture Here is an example architecture that can benefit from scaling : ...

what & why If you want to control a docker instance (the docker daemon) which is not your machine, you can expose it as a TCP socket (instead of a traditionnal UNIX socket) and connect to it remotely using the docker client. We’ll also use SSH forwarding to secure the connection to the docker api if security is a concern. how Install docker curl -fsSL https://get.docker.com | sh sudo usermod -aG docker $USER then edit the systemd service unit by adding the -H tcp://0.0.0.0:2375 to the ExecStart options. ...