josemarcosrf

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

Prune

From docker 1.25+ you can use this commands:

• prune image: Remove all unused images, not just dangling ones. This will delete all the images without an associated container!

josemarcosrf

1. list all remote tags
git ls-remote --tags

2. delete local tag
git tag -d V_1_0_1

3. push tag deletion to remote
git push origin :refs/tags/V_1_0_1

4. tag local branch again

josemarcosrf

const fs = require('fs');
const { auth } = require('google-auth-library');

const API_KEY = 'ADD YOUR API KEY HERE';
const fileName = './audio.raw';

// Reads a local audio file and converts it to base64
const file = fs.readFileSync(fileName);
const audioBytes = file.toString('base64');

josemarcosrf

"""Provides a utility to inject environment variables into argparse definitions.
Currently requires explicit naming of env vars to check for"""

import argparse
import os

# Courtesy of http://stackoverflow.com/a/10551190 with env-var retrieval fixed
class EnvDefault(argparse.Action):
    """An argparse action class that auto-sets missing default values from env
    vars. Defaults to requiring the argument."""

josemarcosrf

If you are like me you find yourself cloning a repo, making some proposed changes and then deciding to later contributing back using the GitHub Flow convention. Below is a set of instructions I've developed for myself on how to deal with this scenario and an explanation of why it matters based on jagregory's gist.

To follow GitHub flow you should really have created a fork initially as a public representation of the forked repository and the clone that instead. My understanding is that the typical setup would have your local repository pointing to your fork as origin and the original forked repository as upstream so that you can use these keywords in other git commands.

1. Clone some repo (you've probably already done this step)

   git clone git@github...some-repo.git

josemarcosrf

Introduction

I wrote this gist to record the steps I followed to get docker running in my Raspberry Pi 3. The ARM ported debian version (Jessie) comes with an old version of docker. It is so old that the docker hub it tries to interact with doesn't work anymore :)

Hopefully this gist will help someone else to get docker running in their Raspberry Pi 3.

Installation

From original instructions at http://blog.hypriot.com/post/run-docker-rpi3-with-wifi/

josemarcosrf

from functools import wraps

def decorator(f):
  @wraps(f)
  def wrapper(*args, **kwargs):
    print("I am the wrapper, wrapping '{}'".format(f.__name__))
    return f(*args, **kwargs)
  return wrapper

josemarcosrf

# from the branch to rename
git branch -m new-name

# delete the old name-branch and push the new one
git push origin :old-name new-name

# reset the upstream with the new local name one
git push origin -u new-name

josemarcosrf

for i in *.wav; do lame -b 320 -h "${i}" "${i%.wav}.mp3"; done

josemarcosrf

# Download installers
mkdir ~/Downloads/nvidia
cd ~/Downloads/nvidia
wget https://developer.nvidia.com/compute/cuda/8.0/Prod2/local_installers/cuda_8.0.61_375.26_linux-run
wget http://us.download.nvidia.com/XFree86/Linux-x86_64/384.59/NVIDIA-Linux-x86_64-384.59.run
sudo chmod +x NVIDIA-Linux-x86_64-384.59.run
sudo chmod +x cuda_8.0.61_375.26_linux-run
./cuda_8.0.61_375.26_linux-run -extract=~/Downloads/nvidia/
# Uninstall old stuff
sudo apt-get --purge remove nvidia-*