Shan Desai shantanoo-desai

Create system drive

qemu-img create -f qcow2 alpine.qcow2 16G

Install image

Linux

Assign proxy to a specific wifi network

Step 1.

Have connected at least once to the WiFi network... obviously

Step 2.

Create a Proxy Auto-Config File

Resources

Side-project thread

If you were starting a side-project or two today...

GitLab 5-minute rails

5 Mins to free-tier deployments

This gist is to configure a Mosquitto MQTT Broker behind a Traefik reverse-proxy, both in a docker container. Mosquitto will be configuread as a TCP Service.

This is a simple configuration used on the same single server. Probably to be adapted for other cases. Having mosquitto behind a reverse proxy enables you to configure TLS on Traefik (likely you already do that for other applications as well) and to load balance different MQTT instances, but that goes beyond this gist.

As noted in Traefik docs, in the router you must use the rule HostSNI(`*`) when using non-TLS routers like in this example. Ref. https://docs.traefik.io/routing/routers/#rule_1

docker-compose.yml

Node-RED Radius custom authentication and authorization

Requirements

node-radius-client

Installation

Save user-authentication.js to <node-red>/user-authentication.js.
Add the following line to setting.js:

	#!/usr/bin/env python

	"""Filter for "ansible-vault"ing YAML Data Values

	https://gist.github.com/utoddl/66baa4154618ba1fc8ec8127483e7e89

	This script allows an ansible user to pass lines of yaml data
	through it to get string values vaulted and/or already-vaulted values
	unvaulted, thus simplifying the maintenance of vaulted strings in
	Ansible vars files and eliminating the need to vault entire files.

	#cloud-config
	autoinstall:
	version: 1
	refresh-installer: # start with an up-to-date installer
	update: yes
	interactive-sections: # Install groups listed here will wait for user input
	- storage
	storage: # should set the interactive default but doesn't seem to work??
	layout:
	name: direct

	version: '3.3'

	services:
	###############################################
	#### Traefik Proxy Setup #####
	###############################################
	traefik:
	image: traefik:latest
	container_name: traefik
	restart: always

	#cloud-config
	autoinstall:
	version: 1

	early-commands:
	- systemctl stop ssh # otherwise packer tries to connect and exceed max attempts
	- hostnamectl set-hostname ubuntu-00 # update hostname even for the installer environment
	- dhclient # re-register the updated hostname

	network:

	FROM ubuntu as ubuntu

	RUN apt-get update
	RUN apt-get install -y dpkg-dev wget gnupg2 curl

	ARG ubuntu_packages="wget htop default-jre-headless apt-transport-https nvidia-container-toolkit cuda-drivers libopengl0 linux-image-extra-virtual omnisci"

	WORKDIR /opt/packages/deb

	# Nvidia-Docker