pythoninthegrass

# syntax=docker/dockerfile:1.7

FROM ubuntu:20.04

ARG PYTHON_VERSION="3.11"
ENV TZ=US/Chicago
ARG DEBIAN_FRONTEND=noninteractive

RUN <<EOF
#!/usr/bin/env bash

pythoninthegrass

How to resize a qcow2 disk image on Linux

This example takes olddisk.qcow2 and resizes it into newdisk.qcow2, extending one of the guest's partitions to fill the extra space.

1. qcow2 format

1.1. Verify the filesystems of olddisk.qcow2

pythoninthegrass

# Below are the dependencies required for installing the common combination of numpy, scipy, pandas and matplotlib 
# in an Alpine based Docker image.

ARG VERSION=3.18

FROM alpine:${VERSION}

RUN apk update \
    && apk add \
        --no-cache \

pythoninthegrass

# Source: https://gist.github.com/vfarcic/77c63cede031951654d5fea5ce0acb43

#########################################################################################
# Say Goodbye to Makefile - Use Taskfile to Manage Tasks in CI/CD Pipelines and Locally #
#########################################################################################

# Additional Info:
# - Task: https://taskfile.dev
# - Dagger: The Missing Ingredient for Your Disastrous CI/CD Pipeline: https://youtu.be/oosQ3z_9UEM

pythoninthegrass

kamal

This documentation adds important additions to the docs for kamal deploy tool (see github.com/basecamp/kamal)

Destination flag

You can use kamal deploy --destination staging

This will read config/deploy.yml and config/deploy.staging.yml files, and also will read .env.staging file if it exists.

pythoninthegrass

microk8s & fluxcd

(optional) prepare the server

# install at https://multipass.run/
multipass launch --name microk8s-flux --mem 2G
multipass shell microk8s-flux

# assume ubuntu with snap installed, if not install it via
apt install snapd

pythoninthegrass

ghcr (GitHub Container Registry) quickstart

CLI

To push container images to ghcr, you need peronal access token (PAT) - see how to create PAT

1. Get PAT (personal access token)

Personal Settings > Developer settings > Personal access tokens

pythoninthegrass

# code: language=ansible

---
- hosts: localhost
  connection: local
  gather_facts: true
  any_errors_fatal: true
  vars:
    base_dir: "{{ home_dir }}/git/nerd-fonts"
    repo_url: https://github.com/ryanoasis/nerd-fonts.git

pythoninthegrass

#!/usr/bin/env bash

# run this on the remote terminal machine, as auser with sudo powers, probably through a remote ssh shell

# this will overwrite all the settings it touches

# the name of the user to run these commands as
TARGET_USER=jane

# we need an inlocked desktop session. we can either start a new autologin one or unlock an existing one

pythoninthegrass

#!/usr/bin/env bash

# To see current swap usage
sysctl -a | grep swap

# Monitor swap usage
vm_stat 60

# Use only when when your system is in a very bad shape
sudo pkill -HUP -u _windowserver