Niklas Leinz corusm

(Assuming a Debian 8-like system)

Install prometheus-node-exporter

$ sudo apt update && sudo apt install prometheus-node-exporter

Configure prometheus-node-exporter to expose metrics only to localhost, not on to all networks. Modify file /etc/default/prometheus-node-exporter:
```
# Set the command-line arguments to pass to the server.
```

One liner for deleting images from a v2 docker registry

Just plug in your own values for registry and repo/image name.

registry='localhost:5000'
name='my-image'
curl -v -sSL -X DELETE "http://${registry}/v2/${name}/manifests/$(
    curl -sSL -I \
        -H "Accept: application/vnd.docker.distribution.manifest.v2+json" \

How to publish Python apps for human beings

So, you've created a Python app (be it a graphical user interface with Qt or the like, or a simple command line interface). Great! But how are others going to use it? Python applications often have dependencies (e.g. from third-party modules), and they also need a Python interpreter to run them. For a developer, installing all the necessary bits and bobs to make things work is okay, but that's unacceptable for a normal user - they just want to download the thing and run it.

Below are simple instructions to publish your app on the three main operating systems: Windows, macOS and Linux.

Docker compose as a systemd unit

Create file /etc/systemd/system/docker-compose@.service. SystemD calling binaries using an absolute path. In my case is prefixed by /usr/local/bin, you should use paths specific for your environment.

[Unit]
Description=%i service with docker compose
PartOf=docker.service
After=docker.service

	ARG UBUNTU_VERSION=18.04
	ARG CUDA_VERSION=10.2
	FROM nvidia/cuda:${CUDA_VERSION}-base-ubuntu${UBUNTU_VERSION}
	# An ARG declared before a FROM is outside of a build stage,
	# so it can’t be used in any instruction after a FROM
	ARG USER=reasearch_monster
	ARG PASSWORD=${USER}123$
	ARG PYTHON_VERSION=3.8
	# To use the default value of an ARG declared before the first FROM,
	# use an ARG instruction without a value inside of a build stage:

	brew install pandoc
	brew tap homebrew/cask
	brew install --cask basictex
	eval "$(/usr/libexec/path_helper)"
	# Update $PATH to include `/usr/local/texlive/2022basic/bin/universal-darwin`
	sudo tlmgr update --self
	sudo tlmgr install texliveonfly
	sudo tlmgr install xelatex
	sudo tlmgr install adjustbox
	sudo tlmgr install tcolorbox

	version: '3'

	services:
	webapp:
	image: containous/whoami
	# Move this directive under the "deploy:" if you are deploying to swarm instead of standalone Docker Engine
	labels:
	# Traefik v1
	- "traefik.frontend.rule=Host:whoami.localhost"
	# Traefik v2

	# Install these packages (use your favorite AUR tool here)
	yay -S minikube kubectl docker-machine-driver-kvm2 libvirt qemu-headless ebtables

	# Get libvirt going
	sudo systemctl enable libvirtd.service
	sudo usermod -a -G libvirt $(whoami)

	# This fix thanks to http://blog.programmableproduction.com/2018/03/08/Archlinux-Setup-Minikube-using-KVM/
	sudo virsh net-autostart default

	FROM arm32v6/alpine

	RUN apk add --no-cache dnsmasq

	EXPOSE 53/tcp \
	53/udp \
	67/udp

	ENTRYPOINT ["dnsmasq", "--no-daemon", "--user=dnsmasq", "--group=dnsmasq"]

	# Backup
	docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

	# Restore
	cat backup.sql \| docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE