shaposhnikoff

###############################################################################
# The MIT License
#
# Copyright 2012-2014 Jakub Jirutka <jakub@jirutka.cz>.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is

shaposhnikoff

Deploy K3s and Rancher on Raspberry Pi 4 cluster

Today I tried to setup a small Kubernetes cluster on top of 3 Raspberry Pi 4 (4GB Memory). Here is the steps to install the cluster.

Preparation

I have 3 Raspberry Pi 4 stacked with PoE headers and connected to a PoE switch at home. The are connected to Internet through a home router. All Pis are equipped with a 64GB Samsung SDXC card flushed with Ubuntu 20.04 image.

shaposhnikoff

apiVersion: v1
kind: Namespace
metadata:
  name: ns1
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: prometheus-example-app

shaposhnikoff

/ip firewall nat
add chain=dstnat dst-address-type=local protocol=tcp dst-port=443 action=dst-nat to-address=10.0.0.5 to-port=443
add chain=srcnat src-address=10.0.0.0/24 dst-address=10.0.0.5 protocol=tcp dst-port=443 out-interface=LAN action=masquerade

shaposhnikoff

Terraform - The Missing Manual

Infrastructure-as-Code is a principal that drives modern DevOps practice. I discuss the current state of Terraform and provide some basic guidelines/principles regarding how to structure it's usage for your project.

Tables of Contents

• Rationale
• Background
• Terraform Documentation Gotcha's

shaposhnikoff

1. install kind:
  go or go1.20.3 install sigs.k8s.io/kind@v0.18.0


2. create a 3-node worker cluster by creating a yml file like this:
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
- role: worker

shaposhnikoff

#!/bin/sh

# This is for Redhat 64 bit versions of Linux with `createrepo` installed. If you
# do not have createrepo, you can install it with:
# yum install -y createrepo

# Change DESTDIR path to RPMS directory of your repo
DESTDIR="/var/www/repo/rhel/6"

for ARCH in x86_64

shaposhnikoff

#!/bin/bash
# Create RPM Repository for Rhel/CentOS

ftpdir="$HOME/Dropbox/Public/rpmrepo"
releases=(el6 el7)

for release in "${releases[@]}"; do
    for dir in i386 x86_64 SRPMS; do
        pushd "${ftpdir}/${release}/${dir}" >/dev/null 2>&1
        createrepo -v .

shaposhnikoff

Local Mirror of RHEL

• How to mirror a repository in Linux
• How to create a local mirror of the latest update for Red Hat Enterprise Linux 5, 6, 7, 8 without using Satellite server?
• CentOS SELinux 설정 및 해제하기

server 1

yum install yum-utils createrepo

shaposhnikoff

#!/bin/zsh
#
# Script to get simple cw macros or free typing on the ICOM IC-705
#
# Make sure CI-V Transceive is ON and USB Echo Back is OFF
callsign=TM22YOTA
echo -e "Welcome. Press CTRL+C to exit...\n"
while true
do
        echo "CW: "