python – Fahad Ahammed

SSH Config and Ansible Host Generator and Why I am doing it this way?

I am recently playing the role as an SRE and that is why I have to deal with a lot of servers. Not only cloud once or clusters but also bare metals as well as Virtual Machines. For more systematic environment preparation, I have Gitlab pipeline. But for basic tasks like change the config on demand or check a specific directory or search something or any other unpredictable or repeated tasks, I need Ansible for better grasp from my local machine or Bastion server. So, what do I have to do?

Create an entry to the .ssh/config file
Create an entry ansible host file as inventory

Repeated tasks? For me, yes. I needed to manage these. So, created a python script

My Understanding about RUN, CMD and ENTRYPOINT in Dockerfile

Containerization gives us many benefits from packaging to distribution and others. Thus, Docker is widely used as a containerization tool which is designed for running specific tasks and processes, not for hosting operating systems or like other virtualization tools like VMWare, VirtualBox etc. You create a container to serve a single unit task. Once it completes the given task, it stops. The container life-cycle depends on the ongoing process inside of it. Once the process stops,

Effective use of Redis with Python and Connection Pool

I have been working with redis and python for sometime. It is fun to play with python and redis. There are so many things can be solved by redis.

Session persistency
Caching
Volatile Datastore
Job or Message Queue
Search

And many more. But recently I was thinking about using it as main database. I am not yet sure what kind of problem I might face or what things to optimize when it is about scalability or reliability. I will for sure share my experience.

Here I want to talk about –

How to run Python Flask Application?

I mostly use Python Flask when I need to develop a Web App or API.

Why? Because it is:

lightweight
Very Flexible
Micro-Service Friendly
Fast Development

These are one of the main reasons I choose Flask. But mostly I love to code with Flask. There are so many ways to run flask applications. I will write some of them here with code examples.

Apache Kafka in Docker Container and Implement it’s Functionalities with Python

According to the website, Apache Kafka is an open-source distributed event streaming platform used by thousands of companies for high-performance data pipelines, streaming analytics, data integration, and mission-critical applications.

In this post, I am going to share a basic way to start using Apache Kafka with python.