Here are 5 commands to run docker on ARM processors:

sudo apt-get update
sudo apt-get upgrade
curl -fsSL get.docker.com -o get-docker.sh && sh get-docker.sh
sudo usermod -aG docker $USER
sudo docker run --rm -it -p 80:80 jasonrandrews/php-example

A docker wrapper for the Cloudmapper application, used for visualizing AWS infrastructure.

git clone https://github.com/sebastientaggart/docker-cloudmapper.git
cd docker-cloudmapper
Edit .env file and add your AWS key, secret, region, and account name.
docker-compose build (go get a cup of coffee)
docker-compose up -d

Go to http://localhost:8000 and enjoy!

enable Weekly Email Notification from the Trusted Advisor.

1) Open the AWS Management Console.
2) Go to the Trusted Advisor service.
3) Select Preferences from the sub-navigation.
4) Enable weekly email notifications.

from functools import partialmethod
pd.DataFrame.head = partialmethod(pd.DataFrame.head, n=3)

apt-get update && apt-get upgrade
mkdir -p /usr/share/man/man1
apt-get install default-jdk
apt install openjdk-11-jdk

1. Open the AWS SNS Management Console
2. Create and select a SNS topic
3. Click on Actions > Subscribe to Topic

4. Choose HTTPS as the protocol and set the endpint to:
https://api.marbot.io/v1/sns/ea5e

5. Configure your CloudWatch Alarms to send notifications to the SNS topic.

lsblk prints all block devices in a tree-like format.

lsblk
NAME    MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
xvda    202:0    0   8G  0 disk
└─xvda1 202:1    0   8G  0 part /
xvdf    202:80   0  90G  0 disk

If file command on the disk identifier "xvdf" shows simply "data", then there is no file system on the device and you need to create one.

file -s /dev/xvdf
/dev/xvdf: data

The total file size of the Food-5K dataset is about 1.16 GB. Here are steps to download food 11 dataset.

https://mmspg.epfl.ch/downloads/food-image-datasets/

Use these commands at linux prompt:

ftp
open tremplin.epfl.ch
FoodImage@grebvm2.epfl.ch
Cahc1moo
get Food-11.zip

Cron entry to remove all files in /home/ folder that starts with 'bk_all_dbProdSlave' and not created in the last 2 days.

59 22 * * * find /home/ -name bk_all_dbProdSlave_\* -mtime +2 -exec rm -f {} \;

Similar as above to remove compressed files:

find /home -type f \( -name "*.sql.gz" -o -name "*.tar.gz" -mtime +10 \) -exec rm -rf {} \;

List of important Types in Amazon Cloud Formation tool:

IAM (User, Group, Policy, AccessKey, Role)
Athena (NamedQuery)
Route53 (RecordSetGroup)
EC2 (SecurityGroup::Id, KeyPair::KeyName, SpotFleet)
Lambda (Function, Permission)
Events (Rule)
ApiGateway (RestApi, Method, Deployment)
Logs (LogGroup)