Python: Unit Testing 101
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python
Python: Working with Parquet Files
Requirements
Python: _ explained
What _ is used for in Python?
Python: Check whether a string is a Palindrome
What is a Palindrome?
Python: Binary Search
What is Binary Search?
Python Cheatsheet
Lists
Python: Convert JSON to YAML
Use the following code to convert a JSON file into a YAML file
Getting started with Pipenv
Whas is Pipenv?
Python: remove duplicates from a sorted list
The goal: remove any duplicates from a sorted list. Example: given the list [2, 2, 4, 5, 5] we want to get the result: [2, 4, 5]
Python: Signal Handlers
What is a signal?
Python: Run Daemon
What is a daemon?
linux
Linux: Network Namespace
What is a Network Namespace?
Linux: /proc deep dive
What is /proc exactly?
Linux: Ulimit and number of open file descriptors
The goal of this post is to show you how to raise the limit on the number of open file descriptors in your system.
Linux Checklist
Linux Beginner File System Hierarchy / (aka root) /bin and /sbin /opt /usr /var /home /etc /proc /tmp Test What is ...
aws
AWS S3: Create Lifecycle Policy
S3 Lifecycle Policy in a nutshell
AWS: Create VPC, IGW, Subnet, Route Table and NACL
AWS network components overview
AWS: Solutions Architect Associate
Global Infrastructure Availability Zone is one or more data centres, each with redundant power, networking and connectivity, housed in separate facilitie...
AWS: Cloud Practitioner Summary
Cloud Computing
openstack
OpenStack Neutron: Troubleshooting and Solving Common Problems
Important note: this post is based on the great sessions ‘I Can’t Ping My VM! Learn How to Debug Neutron and Solve Common Problems’ of Rossella Sblendido &am...
OpenStack Neutron Introduction
Neutron Core Concepts
OpenStack Neutron: L2 and L3 agents
Important note: This post is a written form of this great presentation of Carl Baldwin and Rossella Sblendido. Usually when I watching vids, I write down som...
ansible
10 Ansible Interview Questions
Core Components
Ansible: write and run your first playbook
What is Ansible?
jenkins
Jenkins Scripts: Print Jobs
In this post we’ll see how write a very simple script to print a list of all Jenkins jobs. We’ll also see how to print jobs names based on given regex.
Gerrit: No Vote from Jenkins
No vote :(
packer
Getting Started with Packer
What is Packer?
Packer: Build your First Image
This is a practical version of how to start with Packer by building your first image. If you would like to understand better what is Packer and why to use it...
elastic
Elasticseach: search examples with Python
This post will focus on performing search calls on elasticsearch index using the elasticsearch-python library. Let’s start
Kibana: Getting ‘Forbidden’ while trying to create an index pattern
If you go to Kibana and try to create an index pattern but get “Forbidden” it means you have a locked index and while it’s read-only you will not be able to ...
flask
Flask + MongoDB Tutorial
In this tutorial I’ll demonstrate how to use Flask together with MongoDB.
mongo
Flask + MongoDB Tutorial
In this tutorial I’ll demonstrate how to use Flask together with MongoDB.
bash
Bash Best Practices
Exit script when a certain command fails
json
Back to Top ↑tests
Convert Subunit stream to Junitxml
What is Subunit?
security
SSL Certificate Problem: self signed certificate and how to fix
SSL certificate problem: self signed certificate in certificate