Question
General: autoscaling & security
Hi, I am very much new to kubernetes and trialing out the DO managed kubernetes product and have some questions that i need help with - struggling to find clear guides/docs describing the following:
Autoscaling
- What is the difference between using
kubectl autoscale...
anddoctl kubernetes cluster node-pool ...
(or via the dashboard) to configure autoscaling? Do they have the same effect? - What confuses me is the kubectl allows for the –cpu-percent parameter which determines when the pods scale up, but it is not clear what controls doctl…
Docker images
- Is it possible to build & deploy a docker image directly to kubernetes without needing to use a registry such as dockerhub?
Security:
- Network
- Firewall: firewall was created by default with the cluster, but not much detail on what exactly it is filtering?
- My interpretation of the rules are that it blocks all traffic to the cluster except on ports:
30000-32767
is that correct?
Context on my environment:
- Load balancer
- Cluster
- Express Node web api
- one node with two pods
- Managed Postgresdb
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