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4
src/postmortem/2023-09-27_Signup-failures.md
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title = '2023-09-27 Signup Failures Postmortem'
date = 2023-09-28
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# 2023-09-27 Signup Failures Postmortem

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src/slides/example/Example.md
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title = "Title"
date = 2023-08-07
slides = true
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### Title
Subtitle
----------------------------------------------------------------------------
-------------------------------------------------------------------------
<!-- HTML comment -->
Slide 1
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Slide 2
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Image 1
![image][1]
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Image 2
<img src="./CompSoc_Logo_PNG.png" height="100"></img>
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-------------------------------------------------------------------------
[1]: CompSoc_Logo_PNG.png

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src/slides/skynet/0_Intro.md
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title = "Skynet: Intro"
date = 2023-09-23
slides = true
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
# Skynet: Introduction
----------------------------------------------------------------------------
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Skynet is the UL Computer Society's computer cluster.
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Has a long history: <<https://2016.skynet.ie/history.html>>.
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Older than the Society. (1992 vs 1994)
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But alas good things always come to an end.
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Due to //A Series of Unfortunate Events// we lost internet in Jan 2023
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Turns out Wordpress got Wordpress'd and we had a //smol// spam problem.
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ITD also wanted us to have all servers patched and up to date.
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# Skynet 3.0
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Gave us a chance to do a full rebuild.
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Servers were delved Indiana Jones style.
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![Delving into Ruins](0_intro_img1.png)
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Backups were made.
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Returned Summer 2023.
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Powered by NixOS.
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Fully open source: <<https://gitlab.skynet.ie/compsoc1/skynet/nixos>>
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Skynet now can compile and update itself.
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Be not Afraid
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Automation FTW!
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How hosts:
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* Email
* Gitlab + CI/CD runners
@ -94,6 +94,6 @@ How hosts:
* <<https://skynet.ie>>
* User sites (<<https://silver.users.skynet.ie>>)
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Always iterating, always improving.

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src/slides/skynet/1_setup.md
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title = "Skynet: Setup"
date = 2023-09-23
slides = true
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# Skynet: Setup
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Now that ye have the history time to get you Skynet accounts.
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This is for new members, if there are any older members please wait a little while.
This is for new members.
If there are any older members please wait a little while.
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## New Members
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1. Be a fully paid up member of UL Computer Society
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2. Go to <<https://account.skynet.ie/signup>> and enter the same email used for UL Wolves
2. Go to <<https://account.skynet.ie/signup>>.
Enter the same email used for UL Wolves
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3. You will get an email to verify your address, follow the link.
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4. Choose a ``username`` and ``password``.
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Congrats! You are in! //heist music//
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## Returning Members
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1. Please go to <<https://account.skynet.ie/modify>> and enter the same email used for UL Wolves
1. Please go to <<https://account.skynet.ie/modify>>.
Enter the same email used for UL Wolves
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Congrats! You are in! //heist music//
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## Returning Members
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If you have forgotten your ``username`` please use <<https://account.skynet.ie/recover/username>>
If you have forgotten your ``username``.
Use <<https://account.skynet.ie/recover/username>>
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If you have forgotten your ``password`` please use <<https://account.skynet.ie/recover/password>>
If you have forgotten your ``password``.
Use <<https://account.skynet.ie/recover/password>>
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## All Members
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Now that we are all on the same page we can now set an SSH key.
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Prepwork:
```bash
@ -79,7 +84,7 @@ mkdir skynet
cd skynet
```
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```bash
ssh-keygen -t ed25519 -C "<comment>"
@ -90,13 +95,13 @@ Password: Press Enter twice
We will use the ``{username}.pub`` file later
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Back to the ssh folder
```bash
cd ../
```
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Windows
```powershell
@ -109,7 +114,7 @@ Linux
touch config
```
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Into it pop this
```
@ -120,47 +125,47 @@ Host *.skynet.ie
```
(we will also ping this on discord)
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Remember the ``{username}.pub`` in ``~/.ssh/skynet`` ?
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```bash
cat ~/.ssh/skynet/{username}.pub
```
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Copy the text and go to <<https://account.skynet.ie/modify>>
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Select the SSH Key field and submit.
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Congratulations, you now have full access to all of Skynet's services!
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Now to learn //how// to access them!
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## Email
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1. Go to <<https://mail.skynet.ie/>>
2. Login with ``username@skynet.ie`` and ``password``
3. Done
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## Email (Thunderbird)
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0. Have Thunderbird Installed
1. Add Account
@ -168,45 +173,45 @@ Now to learn //how// to access them!
3. It can take a few min.
4. Done
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## Skynet Webserver
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```bash
ssh {username}@skynet.skynet.ie
```
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Thats it, you have logged into Skynet (webserver)!
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## Skynet Website
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The server you logged onto is a webserver.
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This means it can serve content on the web.
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Due to aforementioned //issues// we can only serve static files (no database)
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This is more than enough for most folks needs.
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We are going to create a ``public_html`` in your own home directory with correct permissions
Create a ``public_html`` in your own home directory with correct permissions
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```bash
mkdir ~/public_html
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cd ~/public_html
```
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Now we have a folder, time to put something in it.
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```bash
nano index.html
```
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This brings up a terminal based editor, type whatever ye want here.
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To exit press ``[ctrl]``+``[x]`` to bring up save options.
You cna rename the file, for now just press ``[enter]``
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If you go to <<https://{username}.users.skynet.ie>> then teh contents will be displayed.
Go to <<https://{username}.users.skynet.ie>> to view your website.
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That was cumbersome to do right?
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Logging in only to change a file on terminal that you have never used before.
Logging in.
Only to change a file on terminal that you have never used before.
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Surely there is a better way?
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Well luckily for you programmers are lazy
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There are ways to transfer files from your local computer to the server.
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Fow Windows you have WinSCP: <<https://winscp.net/>>
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If ye are using linux you can use put ``sftp://{username}@skynet.skynet.ie`` (or use filezilla)
If ye are using linux you can use put ``sftp://{username}@skynet.skynet.ie``
(or use filezilla)
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## Gitlab
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As part of your Skynet account you have access to our Gitlab Server.
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1. Go to <<https://gitlab.skynet.ie>>
2. Login with ``username`` and ``password``
3. Done
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## Gitlab Website
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its possible to have a website on gitlab.
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Powered by source control and CI/CD pipelines (devops)
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Go to the ``Dashboard`` > ``Groups`` > ``New Group``
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Name the group Personal or College or something like that.
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If you name the group the same as your username then your username will be part of the URL.
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Inside that Group create a ``New Project``, name it whatever ye want.
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``Create from Template`` > Any one that starts with ``Pages`` (I recommend ``pages/html``)
``Create from Template`` > Any one that starts with ``Pages``
(I recommend ``pages/html``)
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It will appear on the screen in a moment after clicking.
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Go up to Edit > Web IDE > Change something on the index.html
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``[ctrl] + [shift] + [g]`` (or click the icon on the left), enter a msg and ``commit to master``.
``[ctrl] + [shift] + [g]`` (or click the icon on the left), enter a msg
And ``commit to master``.
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Your website will now be build and deployed.
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Woot!!! Devops!!!
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To get teh link is a tad annoying.
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Go to ``Settings`` (bottom left of repo page) > Pages
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Open the link in a new tab and marvel at yer creation.
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If you go back and commit new changes they will show up as well.
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In a future session we will discuss Gitlab (and git in general) more.
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Here completes the rough introduction to Skynet and creating websites.
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If ye have any questions/ideas feel free to ask.
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If ye want to take a deeper look into server administration feel free to ask.
If ye want to take a deeper look into server admin feel free to ask.
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Skynet team is always open to newcomers!

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src/slides/skynet/2_topics.md
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title = "Skynet: Topics"
date = 2023-10-08
slides = false
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Topics that will be covered by teh skynet Training

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src/slides/skynet/3_nix.md
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title = "Skynet: Nix"
date = 2023-10-08
slides = true
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# *nix, Nix and Nixos
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## *nix
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Skynet runs on a flavor of Linux called NixOS
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Normal linux commands apply (basic primer)
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``cd`` - change directory
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``mkdir`` - make directory
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``ls`` - list directory
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``touch {filename}`` - create file named {filename}
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``nano {filename}`` - edit {filename}
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``history`` - view history of previous commands
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``grep "{query}" {filename/path}`` - find {query} in a file
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There is also piping where the output of one command is piped into another command
There is also piping where:
The output of one command is piped into another command
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Often called [Unix philosophy][1]
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Can make really powerful programs from smaller simple programs.
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``history | grep "nano"`` - search the history for any mention of ``nano``
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## Nix
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Nix is a (lazy) functional language
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```nix
a = 1 # int
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e = true # boolean
```
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```nix
double = x: x*2
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mul 2 3
```
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```nix
s = { foo = "bar"; biz = "baz"; }
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s.biz # baz
```
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Info:
1. [Offical guide][2]
2. [Nix Pills][3]
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## NixOS
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Some crazy person saw Nix and thought "I want to make an OS with that"
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In essence a giant function is created with an OS as the output
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This does have quite a few advantages
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* Config as Code
* Deterministic
* Reproducible
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Skynet 2.0 had its config spread across different servers making it hard to get a good overview
Skynet 2.0 had its config spread across different servers.
Making it hard to get a good overview
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Skynet 3.0 is fully source controlled on [gitlab.skynet.ie][4]
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Deterministic and Reproducible go hand in hand.
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Deterministic means that for the same inputs you get the same output.
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Reproducible is that you are able to create the same output from the source code.
Reproducible is that you are able to create the same output from
the source code.
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We use Flakes, which adds a lockfile, reduces hassle for the dev.
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Questions?
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[1]: https://en.wikipedia.org/wiki/Unix_philosophy