Linux PSI monitoring
As I mentioned before linux psi metrics are exposed in cgroup v2 hierarchy.
Tagged "linux"
Linux PSI
From performance perspective one of the simplest question is how well your system is handling current load ?
ICMP Echo permissions
Network ping tool, one of the most widely used tool to debug network problem.
gRPCurl - curl for gRPC
In previous blog post How kubernetes is interacting with docker ?
CNI - the Container Network Interface
CNI is simple interface based on environment variables and JSON config.
Docker and Kubernetes at network layer
I wrote some posts about how kubernetes is interacting with docker at CRI level, but what about networking ?
dropwatch - discover where network packets are dropped
Let’s imagine situation where you experience network problem with dropping packets and you’ve no idea where the problem is located.