Why am I writing this?

Lately, I am doing more and more Azure stuff and find that terms are thrown around that I have trouble understanding. I, of course, went on Youtube and looked up a video on Azure. One by John Saville on Managed Identities popped up.

As a student in computer science, I decided I should listen, learn, take notes, and eventually apply.

To make sure I really understand it, I will write it here so that I am an idiot.

You finish your day, get home, put your bag down and hug yor cats (or kids ;) ). You hear a noise from your phone: A notification… From work. It’s almost 7PM, you had a long day and you simply want to wind down. You debate ignoring the message, but your work ethic kicks in and makes you look. It’s in the incident channel, never a good sign. Production is down. The web application is not responding and is showing a white screen. The feeling of dread starts in your stomach as you hurridely get your laptop out and venture forth your aid.

What is an IP Address?

Let’s start with the basics.

IP Address Classes

Class A
    Public range of 10.0.0.0 to 127.0.0.0
    Subnet mask: 255.0.0.0
    Number of Networks: 126
    Number of hosts per network 16,777,214
Class B
    Public range of 128.0.0.0 to 191.255.0.0
    Subnet mask: 255.255.0.0
    Number of Networks: 16,382
    Number of hosts per network 65,534
Class C
    Public range of 192.0.0.0 to 223.255.255.0
    Subnet mask: 255.255.255.0
    Number of Networks: 2,097,150
    Number of hosts per network 254
Class D
    Public range of 224.0.0.0 to 239.255.255.255
    Number of Networks: n/a
    Number of hosts per network multicasting
Class E
    Range: 240.0.0.0 to 255.255.255.255
    First octet value range from 240 to 255
    Number of Networks: N/A
    Number of Hosts per Network: Research/Reserved/Experimental

So, what does all this mean?

Install a Linux based distro. I tend to install raspbian 64-bit lite since i don’t use the UI. To do this, i use the Raspberry PI Imager.

Next, I update the packages: sudo apt update && suso apt upgrade

Next, I installed Docker: https://docs.docker.com/engine/install/debian/#install-using-the-convenience-script

Finally, I followed this tutorial on how to setup a Gitlab Runner: https://medium.com/devops-with-valentine/use-your-raspberry-pi-to-run-gitlab-ci-jobs-8cc29fa49dbe

So, I decided to build a homelab. I’ve been dabling with setting a homelab on a cloud platform for a while. However, I always found it a tad annoying that I had to pay to simply host content when I had a PC lying around at home.

So, without any more delay, here is my Homelab.

Part I

In this first part, I will explain why I chose thte OS and underlying technology. Just know, these are my choices. They aren’t necessarily correct. If you find something wrong or a better way of how to do this, please leave me a comment, or reach out to me. I listen to all feedback.

Rest Params

I always get Query Params mixed up with Path Params. I think it’s time I write about it so as to never forget again!

REST API Call

GET https://api.somedomain.com/path/to/resource?id=998

Here is an example of a REST API call. Let’s break it down.

We could modify this to use a Path Variable:

Tips

Have a Plan

It is a good idea to have a plan. At the beginning of the current day or the end of the day, plan for the upcoming day. I know I may be tired, but it might help.

Also, break up larger, insurmountable tasks into smaller ones. Take the time to plan out work and how to go about it. I tend to start coding waaaay too fast. This is a bad habit I picked up from Univserity.

Summary

This will be a short article on Typing on the specific Types Dict and Callable.

Reference from Python Docs

Callable

With a Type Callable, it means you are passing in a function, a callback if you will ;) .

Syntax

def func(callback: Callback[[param1, param2], return_param] -> None:
    ...
    return_param = callback(param1, param2)

Here, a callback is expecting 2 params and is returning one. The names are arbitrary. Also, you could use the ellipses operator to indicate an infinite list of params.

After a lot of soul searching, I decided it is time to up my game as a Software Developer.

For a few months now, I have been noticing I am having trouble coming up with proper software solutoins to my tasks. In my PRs, I am always getting plenty of comments that indicate that I am not implementing the best practice principles i was taught.

So, I decided I need to improve. I searched for things to do to imprve as a Software Developer. To help me along my path, I devised a lists of things I need to work on: