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Ruan Bekker ruanbekker

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@ruanbekker
ruanbekker / open_port.py
Created June 25, 2022 21:00 — forked from jdavis/open_port.py
Find an open port in Python.
import socket
def find_open_port():
"""
Use socket's built in ability to find an open port.
"""
sock = socket.socket()
sock.bind(('', 0))
@ruanbekker
ruanbekker / site-maintenance.html
Created June 25, 2022 23:23 — forked from sameerjoshi/site-maintenance.html
Site Maintenance
<!doctype html>
<title>Site Maintenance</title>
<style>
body { text-align: center; padding: 150px; }
h1 { font-size: 50px; }
body { font: 20px Helvetica, sans-serif; color: #333; }
article { display: block; text-align: left; width: 650px; margin: 0 auto; }
a { color: #dc8100; text-decoration: none; }
a:hover { color: #333; text-decoration: none; }
</style>
@ruanbekker
ruanbekker / 137-karpenter.sh
Created June 25, 2022 06:14 — forked from vfarcic/137-karpenter.sh
########################################################
# How To Auto-Scale Kubernetes Clusters With Karpenter #
# https://youtu.be/C-2v7HT-uSA #
########################################################
# Referenced videos:
# - GKE Autopilot - Fully Managed Kubernetes Service From Google: https://youtu.be/Zztufl4mFQ4
#########
# Setup #
@ruanbekker
ruanbekker / swarm.yml
Created June 15, 2019 16:51 — forked from MetalArend/swarm.yml
Run a GitLab Runner on your Swarm
version: '3.4'
secrets:
# Find your registration token at: "Your project" > "Settings" > "CI/CD" > "Runners settings" > "Specific Runners" (look for registration token)
# Register it as `GITLAB_REGISTRATION_TOKEN`: `docker secret create GITLAB_REGISTRATION_TOKEN YOUR_REGISTRATION_TOKEN`
GITLAB_REGISTRATION_TOKEN:
external: true
# Find your personal access token at: "Your user account" > "Settings" > "Access Tokens" > "Create personal access token" (for api)
# Register it as `GITLAB_PERSONAL_ACCESS_TOKEN`: `docker secret create GITLAB_PERSONAL_ACCESS_TOKEN <YOUR ACCESS TOKEN>`
@ruanbekker
ruanbekker / generate-ssh-key.sh
Created June 9, 2020 19:21 — forked from grenade/01-generate-ed25519-ssh-key.sh
Correct file permissions for ssh keys and config.
ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/id_rsa
ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/github_rsa
ssh-keygen -t rsa -b 4096 -N '' -C "rthijssen@gmail.com" -f ~/.ssh/mozilla_rsa
@ruanbekker
ruanbekker / nginx-tuning.md
Created September 23, 2020 12:22 — forked from denji/nginx-tuning.md
NGINX tuning for best performance

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

@ruanbekker
ruanbekker / assume-role-policy.json
Created September 28, 2020 08:42 — forked from clstokes/assume-role-policy.json
Example: Terraform IAM Role
{
"Version": "2012-10-17",
"Statement": [
{
"Action": "sts:AssumeRole",
"Principal": {
"Service": "ec2.amazonaws.com"
},
"Effect": "Allow",
"Sid": ""
@ruanbekker
ruanbekker / git-feature-workflow.md
Created November 28, 2018 06:10 — forked from blackfalcon/git-feature-workflow.md
Git basics - a general workflow

There are many Git workflows out there, I heavily suggest also reading the atlassian.com [Git Workflow][article] article as there is more detail then presented here.

The two prevailing workflows are [Gitflow][gitflow] and [feature branches][feature]. IMHO, being more of a subscriber to continuous integration, I feel that the feature branch workflow is better suited.

When using Bash in the command line, it leaves a bit to be desired when it comes to awareness of state. I would suggest following these instructions on [setting up GIT Bash autocompletion][git-auto].

Basic branching

When working with a centralized workflow the concepts are simple, master represented the official history and is always deployable. With each now scope of work, aka feature, the developer is to create a new branch. For clarity, make sure to use descriptive names like transaction-fail-message or github-oauth for your branches.

@ruanbekker
ruanbekker / rancher-on-k3os.md
Created June 6, 2020 19:15 — forked from sebstyle/rancher-on-k3os.md
Install rancher on k3os

Rancher cluster on k3os

Goal

Install rancher on k3os with centralized datastore on mysql cluster.

Environment

  • Host: Ubuntu 18.04.4 Desktop (32gb ram 4 cpu)
  • Virtualisation: kvm/qemu (virtual machine manager)
  • Local network: 192.168.0.0/16
    • Gateway: 192.168.0.1
@ruanbekker
ruanbekker / clean-up-boot-partition-ubuntu.md
Created May 17, 2019 10:16 — forked from ipbastola/clean-up-boot-partition-ubuntu.md
Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r