kenichi-shibata

Setting up your Mac

Geting an Admin Account

• In order to install and configure your Mac, you need to be an Administrator on your computer. Either, contact Paul or Charlie, and they will create an account for you.

Installing of Software

Homebrew

kenichi-shibata

Setting up your Mac

Geting an Admin Account

• In order to install and configure your Mac, you need to be an Administrator on your computer. Either, contact Paul or Charlie, and they will create an account for you.

Installing of Software

Homebrew

kenichi-shibata

#!/usr/bin/python3
import cmd, json, sys, traceback
from collections import defaultdict
from dataclasses import dataclass
from typing import List, Dict

import requests

# This is part of Suhail's talk on the Infrastructure and Ops Superstream
# track for O'Reilly

kenichi-shibata

#!/usr/bin/env python
import argparse


def main(command_line=None):
    parser = argparse.ArgumentParser('Blame Praise app')
    parser.add_argument(
        '--debug',
        action='store_true',
        help='Print debug info'

kenichi-shibata

#!/usr/bin/env python
import argparse


def main(command_line=None):
    parser = argparse.ArgumentParser('Blame Praise app')
    parser.add_argument(
        '--debug',
        action='store_true',
        help='Print debug info'

kenichi-shibata

Recording Rule Example 1
================================
# Aggregating up requests per second that has a path label:
- record: instance_path:requests:rate5m
  expr: rate(requests_total{job="myjob"}[5m])

- record: path:requests:rate5m
  expr: sum without (instance)(instance_path:requests:rate5m{job="myjob"})

Recording Rule Example 2

kenichi-shibata

Running Linux and Windows on M1 with QEMU

30.11.2020: Updated with the new patchseries and instructions for Windows

02.12.2020: Added tweaks

08.12.2020: Updated with patchseries v4

31.01.2020: Updated with patchseries v6

kenichi-shibata

##How to check file integrity with shasum

---

For verifying the integrity (but not authenticity of data, i.e., who authored it or the origin of the file) of a file, it is necessary to run a checksum function on the file which will output a value and compare it to a previously stored checksum value; if it matches we can be relatively confident that the file hasn't been tampered with or altered.

You might be asked to verify a file's sha1sum or sha2sum–all this means is calculating and verifying the cryptographic sha1 or sha2 hash value or digest included in the file.

###Various commands and methods for verifying shasum 1 or 2:

---

Organic:
In terminal run:

kenichi-shibata

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

kenichi-shibata

Setting up a Multi-Arch, Multi OS cluster

I wanted to build a home lab to get some experience with how Kubernetes works in a multi-architecture, multi-OS environment. Here's the worklog. I'll probably turn it into a blog later :)

• Setting up a Multi-Arch, Multi OS cluster
  • First node - ODroid HC-1
    • Initial setup of the ODroid
• ODroid frequency scaling (optional)