How exactly do resources.requests and resources.limits in a Kubernetes manifest works “under the hood”, and how exactly will Linux allocate and limit resources for containers? So, in Kubernetes for Pods, we can set two main parameters for CPU and Memory – the spec.containers.resources.requests and spec.containers.resources.limits fields: resources.requests: affects how and where a Pod will be… Read More » The post Kubernetes: Pod resources.requests, resources.limits, and Linux cgroup...| RTFM: Linux, DevOps, and system administration
It’s difficult to describe in one post what thousands of books have been written about in a thousand pages, but today we’ll try to quickly review the basics of how hosts communicate on a network. First, let’s talk about the OSI and TCP/IP models, then about packet structure and connection establishment, and finally, we’ll… Read More » The post TCP/IP: OSI and TCP/IP models, TCP packets, Linux sockets and ports first appeared on RTFM: Linux, DevOps, and system administration.| RTFM: Linux, DevOps, and system administration