Dwight Spencer denzuko

haproxy and keepalived install and configuration

On API loadbalancer nodes

echo "install haproxy and keepalived service"
apt install -y haproxy keepalived

echo "copy and move haproxy config"
cat /etc/haproxy/haproxy.cfg
cat <<EOT >> /etc/haproxy/haproxy.cfg
listen Stats-Page

This (and related gists) captures how i created my docker swarm architecture. This is intended mostly for my own notes incase i need to re-creeate anything later! As such expect some typos and possibly even an error...

Installation Step-by-Step

Each major task has its own gist, this is to help with maitainability long term.

	;;=============================================================================
	;; 1. THE CORE PROLOG ENGINE IN LISP (Unification & Backtracking)
	;;=============================================================================

	(defun variablep (x)
	"Variables in our Prolog are symbols starting with a question mark, e.g., ?x"
	(and (symbolp x) (char= (char (symbol-name x) 0) #\?)))

	(defun match-variable (var input bindings)
	"Handles variable binding and checks for consistency."

	# place this into /usr/share/icecast2/web/json.xsl
	<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0">
	<xsl:output omit-xml-declaration="yes" method="text" indent="no" media-type="text/javascript" encoding="UTF-8"/>
	<xsl:strip-space elements="*"/>
	<xsl:template match="/icestats">{
	<xsl:for-each select="source">
	"<xsl:value-of select="@mount"/>":{
	"server_name":"<xsl:value-of select="server_name"/>",
	"listeners":"<xsl:value-of select="listeners"/>",
	"description":"<xsl:value-of select="server_description"/>",

	#!/bin/tcsh
	##
	# Podcast sync script
	# version 1.2
	# Copyright (C)2026 Dwight Spencer <[email protected]>. All Rights Reserved.
	# Licenced for use and distribution under the BSD 2-clause licence.
	##
	# Example config file:
	# schema:

	#!/bin/bash
	# Ollama Model Export Script
	# Usage: bash ollama-export.sh vicuna:7b
	# SPDX-License-Identifier: MIT (https://ncurl.xyz/s/o_o6DVqIR)
	# https://gist.github.com/supersonictw/f6cf5e599377132fe5e180b3d495c553

	# Interrupt if any error occurred
	set -e

	# Declare

	FROM python:3.9.18-alpine3.18
	RUN pip install pipx invoke[invocations] scrapy scapy beautifulsoup ansible[dockerpy,pywinrm]
	WORKDIR /src
	COPY tasks.py /src
	ENTRYPOINT invoke
	CMD --list

	---
	## Execute: docker compose up -D ./docker-compose.yml
	version: '3'
	services:

	autoscale:
	image: gianarb/orbiter:latest
	healthcheck:
	test: ["CMD", "exit 0"]
	interval: 25s

	version: "3.8"

	# This should give a high level idea of the approach.
	# The complete solution is too complex and involves multiple internal microservices.
	# I have tried to capture core things to consider while some else needs to achieve Docker swarm based auto scalout of workers.

	services:
	webserver:
	image: customized/airflow:prod
	environment:

	include player.mk
	include example.mk