| /* | |
| * This program is free software: you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation, either version 3 of the License, or | |
| * (at your option) any later version. | |
| */ | |
| #include <arpa/inet.h> | |
| #include <linux/if_packet.h> | |
| #include <stdio.h> |
| Decoding the data in /proc/net/tcp: | |
| Linux 5.x /proc/net/tcp | |
| Linux 6.x /proc/PID/net/tcp | |
| Given a socket: | |
| $ ls -l /proc/24784/fd/11 | |
| lrwx------ 1 jkstill dba 64 Dec 4 16:22 /proc/24784/fd/11 -> socket:[15907701] |
According to this cloudflare blog article "Load Balancing without Load Balancers", we can build a rock-solid load balancer only using a router. All the magic comes from BGP and Equal-Cost Multi-Path routing.
In this howto, I will use bird as BGP router on linux instance (ie. servers).
I use GNS3 with this architecture :
The goal of this document to cover all aspects of Kubernetes management, including how resources are expressed, constrained and accounted for. This started a way to ensure that alternate container runtime implementation like Kata containers will behave from a resource accounting and consumption point of view in the same manner as runc.
Location of the latest version of this document: https://gist.github.com/mcastelino/b8ce9a70b00ee56036dadd70ded53e9f
If you do not understand cgroups please refer to a quick primer at the bottom of this document. This will help you understand how the resource enforcement actually works.
| #define _GNU_SOURCE | |
| #include <asm/bootparam.h> | |
| #include <errno.h> | |
| #include <fcntl.h> | |
| #include <linux/kvm.h> | |
| #include <linux/kvm_para.h> | |
| #include <stdarg.h> | |
| #include <stdint.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> |
