e-lo [IT Engineer life]

e-lo [IT Engineer life]

“Ichigyo-zammai”

Japanese practice of full concentration on a single activity (less is more).

Happiness and freedom begin with a clear understanding of one principle: Some things are within our control, and some things are not. It is only after you have faced up to this fundamental rule and learned to distinguish between what you can and can’t control that inner tranquility and outer effectiveness become possible.

Epictetus

“Underpromise and overdeliver”

The definition of “underpromise and overdeliver” is a strategy in which product or service providers aim for superior customer service by doing more than they originally said they would do.

“Tell me and I forget. Show me and I remember. Involve me and I understand.”

Chinese proverb

“Wu-Nien”

Zen Buddhists apply this term (meaning literally “no-thought”) to meditation on one’s own self-nature.

NOTE:

Some of the things I have done or not done, spent time on or not spent time, liked or not liked, tested or not tested, used hours on or just minutes on, changed or not changed, started to enjoy or changed my mind about, started and finished or started but not finished, found out or not found out yet, could be stored here.

CODE:

Usually it has been done before and / or there is best practices, the key is to dismantle it and understand its’s pieces.

Set up general
VSCExtensions:
Magic Python (MagicStack Inc.), syntax highlighter
Python, IntelliSense
Azure Resource Manager (ARM) Tools for Visual Studio Code (MS)
PowerShell
TODO highlights
ToolsGit Bash and Azure Cli:
GIT, SSH (or with Putty), BASH, NANO
Greenshot
Np++
Pythondir(os), all the attributes of an object.
filter(def is_even (num % 2 ==0), list)
range(2, 10, 2), 2,4,6,8
for idx, val in enumerate(list)
sorted(list) and reversed(list), sort any iterables
zip(list1, list2)
isinstance(object, classinfo), isinstance(1, int), True
inp = input(“Whoareyou\n”)
print(inp)
id(object) function returns the identity of an object. This is an integer which is unique and constant for the object during its lifetime.
help(object), display the documentation of modules, functions, classes, keywords.

Use the Python == and != operators to compare object equality, comparing the value objects.
This is what you need if you want to compare whether or not two objects have the same contents, and you don’t care about where they’re stored in memory.
Use the Python is and is not operators when you want to compare object identity. Here, you’re comparing whether or not two variables point to the same object in memory.
The main use case for these operators is when you’re comparing to None. It’s faster and safer to compare to None by memory address than it is by using class methods.
c = None # Assigning a value of None to a variable is one way to reset it to its original, empty state.

a = [1,2,3]
b = [1,2,3]
c = None
print(str(b == a)), True
print(str(b is a)), False
print(str(c is None)), True

dict = {}
dict[“key1”] = 123456
dict[“key2”] = 456789
dict[“key3”] = 789456
for k, v in dict.items():
    print(k, v)
print(dict.get(“key2”))
rm_v = dict.pop(“key3”)
print(dict)
new_v = {“key4”:99999}
dict.update(new_v)
print(dict)

 
PEP 484 Type Hints
def greet(user_input:str,iteration: int, msg: str =”Welcome”) -> str:
    rv = “”
    for x in range(iteration):
        rv = rv + msg + ” ” + user_input + “\n”
    return rv
print(greet(“World”, 3))
TipsA space at the end can ruin your day (either strip() | ” ” replace “” np+
pip(3) –version
python –version
import sys
print(sys.version)

Linux (Linux System Admin Command):

https://www.javatpoint.com/linux-system-admin-commands

The day before tomorrow:

https://github.com/spawnmarvel

spawnmarvel/quickguides: quickguides, markdown, nutshell reference (github.com)

https://vault.bitwarden.com/#/

https://devhints.io/bash

https://ss64.com/convert.html

https://ss64.com/

https://help.ubuntu.com/community/LinuxFilesystemTreeOverview

https://certlogik.com/decoder/

Python and MS SQL:

https://docs.python.org/3/

Code Style — The Hitchhiker’s Guide to Python (python-guide.org)

https://docs.microsoft.com/en-us/sql/sql-server/?view=sql-server-ver15

https://docs.microsoft.com/en-us/sql/?view=sql-server-ver15

Game or fun:

https://xkcd.com/1335/

https://sudoku.com

VM

Azure “good-to-know” about any VM, with example on SKU:General purpose virtual machine sizes:

https://docs.microsoft.com/en-us/azure/virtual-machines/sizes-general

Checking VM stats on the Dv2 and DSv2-series:

Size and vCPU
Memory GiB
Temp storage (SSD) GiB
Max temp storage throughput: IOPS/Read MBps/Write MBps
Max data disks
Throughput: IOPS
Max NICs
Expected network bandwidth

https://docs.microsoft.com/en-us/azure/virtual-machines/dv2-dsv2-series

Good SKU for testing:

Rgaz104-07-rg0
Virtual macine nameaz104testVM
RegionWest Europe
Availability opt.Availability zone, 1
ImageWindows Server 2016 Datacenter -Gen2
SizeB2s General purpose, 2 vcpu, 4 gib memory
UserThe7481Announcementin85February2008That783LedZeppelinWouldTakeThe
StageAtThe87Bonnaroo78Festival01
PanteraIsRegardedAsOneOfTheMost8745Successful08And98Influential741254
BandsInHeavy666MetalHistoryHaving75SoldAround20MillionRecords
WorldWide18AndHavingReceived481FourGrammyNominations168,
[and the numbers/letters/signs for Caesar Cipher or not!? Who knows, Twitter does]
Public inbound portAllow selected
Select inbound portRDP, 3389
DiskStandard SSD, lrs
NetworkCreate all new and keep default or use existing
ManagementKeep default
AdvancedKeep default
Tags
Review + create
PricePrice, 0.0769 AUD/hr

#Remove all
Get-AzResourceGroup -Name ‘az104-07*’ | Remove-AzResourceGroup -Force -AsJob

MS Azure

Azure documentation

https://docs.microsoft.com/en-us/azure/?produ

Connect to Azure using Powershell (Module -Name Az must be installed)

# $PSVersionTable.PSVersion
# Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
# Install-Module -Name Az -Scope CurrentUser -Repository PSGallery -Force
# Take a coffee, this takes time, answer Yx2 and wait, when done, close/open Powershell and verify module
# Minimum Powershell v is 5.1
# Get-InstalledModule -Name Az

Connect AzAccount
# or
Connect AzAccount -TenantId The-tenant-id-we-copied-from-azure-ad
$rg = “testit2-rg”
Get-AzResource -ResourceGroupName $rg

AZ Powershell Reference

https://docs.microsoft.com/en-us/powershell/azure/?view=azps-6.3.0&viewFallbackFrom=azps-5.2.0

Connect to Azure from Az CLI (must be installed) using Git Bash (must be installed) :

az login
# If that does not work, go to Portal.azure.com, Azure Active Directory, Properties and you will see the tenant id, cp it
az login –tenant The-tenant-id-we-copied-from-azure-ad
rg=”testit2-rg”
az resource list –resource-group $rg

AZ CLI Reference

https://docs.microsoft.com/en-us/cli/azure/

More stuff on the next page…

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