lukeplausin

# Count total EBS based storage in AWS
aws ec2 describe-volumes | jq "[.Volumes[].Size] | add"
# Count total EBS storage with a tag filter
aws ec2 describe-volumes --filters "Name=tag:Name,Values=CloudEndure Volume qjenc" | jq "[.Volumes[].Size] | add"
# Describe instances concisely
aws ec2 describe-instances | jq '[.Reservations | .[] | .Instances | .[] | {InstanceId: .InstanceId, State: .State, SubnetId: .SubnetId, VpcId: .VpcId, Name: (.Tags[]|select(.Key=="Name")|.Value)}]'
# Wait until $instance_id is running and then immediately stop it again
aws ec2 wait instance-running --instance-id $instance_id && aws ec2 stop-instances --instance-id $instance_id

# Get 10th instance in the account

lukeplausin

# Ever wondered which modules are the most popular? Well.. here they are. The top 500 PyPI modules, by download

urllib3, 910195765
six, 749120890
botocore, 670113460
python-dateutil, 629757389
pip, 629606070
requests, 626954494
s3transfer, 595019137
certifi, 570148733

lukeplausin

#!/bin/bash -e

# How to use this script:
# 1. Follow these instructions to configure a single AWS account to do initial login with SSO
#    https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-sso.html
# 2. Export AWS_PROFILE=... and then run "aws sso login" to get an SSO token
# 3. Once signed in with AWS SSO, run this script to automatically list out all the other accounts and roles and add them to your config file

# If you want to filter roles / accounts in the process, or validate config before committing it, you can customise the script to do this.

lukeplausin

# This script will explain how to transfer a file to EC2 using SSM ONLY!

# You will need to have permission to run SSM commands on the target machine and have sudo access as well

# Infos
INSTANCE_ID=i-1234567890
FILE_NAME=the_file.tar.gz

# Step 1: Run command on machine to install netcat and dump from port to filename
# < Start session

lukeplausin

#!/usr/bin/env zsh

# This script assumes that you store all your charts in a single repo
# under a single folder called charts-folder. It will go back through previous versions
# of the code and upload all of them into your chart registry.

# This script assumes that you have updated the chart version in `Chart.yaml`
# whenever a change has been made in the chart. If this is not the case, you can
# switch off version checking by disabling the check on line 54.

lukeplausin

# This is a powershell script which I wrote to verify that Crowdstrike is installed
# for deployment with Microsoft Intune (Endpoint Manager).
# You can use it for any installer which deploys a windows service, just change the $service_name
# variable from "csagent" to the name of the service. For example, Dropbox for Windows is "DbxSvc".

# Name of the service
$service_name = "csagent"
# Number of retries
$max_attempts = 15

lukeplausin

# If your pod container doesn't have bash in the path, you might need to replace `bash` with `/bin/bash/`, `/bin/sh` or `/bin/ash`.

# Simple string from the command line - puts the literal text 'AAA' into a new file /tmp/test.txt
echo 'AAA' > kubectl -n MyNamespace exec -ti $my_pod_id -c my-pod-container -- bash -c 'cat - > /tmp/test.txt'

# Copy / inject a file from the local filesystem into a new file in the pod in the remote kubernetes cluster
kubectl -n MyNamespace exec -i $my_pod_id -c my-pod-container -- bash -c 'cat - > /tmp/file.txt' </my/input/file.txt

lukeplausin

# Ah yes, the lovely, undocumented, and not-at-all-irrationally-difficult-to-understand ArgoCD method of chart customisation - plugins...

# If you are struggling to install the "lovely" plugin (or any plugin for that matter) with the ArgoCD Helm chart, this Gist could help you.
# Include this values config file as part of a Helm/Helmfile values argument to include the "lovely" plugin in your ArgoCD deployment.
# "Lovely" includes several popular tools for helm chart management, including the brilliant Helmfile, which itself includes
# "Vals" for secrets management.

---
argo-cd:
  configs:

lukeplausin

# This gist describes how to undelete files in GCS while retaining most of the metadata.
# GCS doesn't seem to use delete markers like AWS. If anyone knows a better way please say so in the comments.

# I couldn't find any examples of how to do this other than in the UI.
# GCS documentation doesn't seem to include instructions for restoring versioned objects in python, but I found
# that this method works. Confusingly they use terms like version, generation, and revision interchangably in
# the documentation. I couldn't understand how object deletion works on versioned buckets.

import tempfile
from google.cloud import storage

lukeplausin

# This script assumes that you are using a router or device which uses NAT and support upnp,
# you are using ip4 and a debian based linux distro (this covers 90% of home networks and raspberry pi).
# Home routers often won't let you expose port 22, so the port is exposed and mapped with upnp.

# Copy the script to your computer, and then edit the variables at the top.
# Then run the script by typing "bash ./home_ssh_server.sh" into the terminal.

### Variables ###

# This is the public hostname which you will use to connect to your home server.