Fabrizio Caldarelli fcaldarelli

Install Kubernetes on Debian (>= 11)

The goal of this tutorial is to install a kubernetes cluster using Debian 11 or above.

This tutorial covers also as creating a single node cluster (step 7).

Before starting the installation process, ensure you have:

	# ===============================
	# Secrets for MariaDB and MaxScale
	# ===============================
	apiVersion: v1
	kind: Secret
	metadata:
	name: mariadb-root-secret
	namespace: mariadb-ha
	stringData:
	password: aaaaaaPDaA8fKDv

	# Generated by iptables-save v1.8.9 (nf_tables) on Fri Feb 16 19:53:48 2024
	*filter
	:INPUT DROP [0:0]
	:FORWARD DROP [0:0]
	:OUTPUT DROP [0:0]
	-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
	-A INPUT -p tcp -m tcp ! --tcp-flags FIN,SYN,RST,ACK SYN -m state --state NEW -j REJECT --reject-with tcp-reset
	-A INPUT -m state --state INVALID -j DROP
	-A INPUT -i lo -j ACCEPT
	-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT

	server {
	listen 80 default_server;
	listen [::]:80 default_server;

	root /var/www/top/public;

	index index.html index.htm index.php;

	server_name _;

	import java.util.Arrays;
	import java.util.Collections;
	import java.util.stream.Collectors;

	import org.springframework.boot.SpringApplication;
	import org.springframework.boot.autoconfigure.SpringBootApplication;
	import org.springframework.context.annotation.Bean;
	import org.springframework.http.HttpMethod;
	import org.springframework.web.cors.CorsConfiguration;
	import org.springframework.web.cors.UrlBasedCorsConfigurationSource;