iArt kanitphong

Project Requirements Document: The Urlist Website

The following table outlines the detailed functional requirements of The Urlist website.

Requirement ID	Description	User Story	Expected Behavior/Outcome
FR001	Creating a New URL List	As a user, I want to be able to start a new, empty list so I can begin adding URLs.	The system should provide a clear way for the user to initiate the creation of a new list, potentially presenting an empty list view or an "add new list" button.
FR002	A

Screen Quick Reference

Basic

Description	Command
Start a new session with session name	`screen -S <session_name>`
List running sessions / screens	`screen -ls`
Attach to a running session	`screen -x`
Attach to a running session with name	`screen -r <session_name>`

Group Array of JavaScript Objects by Key or Property Value

Implementation

const groupBy = key => array =>
  array.reduce((objectsByKeyValue, obj) => {
    const value = obj[key];
    objectsByKeyValue[value] = (objectsByKeyValue[value] || []).concat(obj);
    return objectsByKeyValue;

kubeadm cloudinit

Setup a single node Kubernetes cluster for development using kubeadm: https://kubernetes.io/docs/setup/independent/install-kubeadm/

Create a CentOS 7 or Ubuntu Xenial (16.04) machine, and run kubeadm.sh as root.

You can pass this script as user-data to cloud-init so that it will be automatically run. For example, on openstack:

openstack server create NAME --flavor FLAVOR --key-name KEY --image 'Ubuntu Xenial' --network NET --security-group SECGROUP --user-data kubeadm.sh

	# non root user example for alpine
	#
	# usage:
	# $ docker build --build-arg "USER=someuser" --tag test .
	# $ docker run --rm test

	FROM alpine

	ARG USER=default
	ENV HOME /home/$USER