Feb 28RaspberryPi with DHT22 Sensor for Humidity and Temperature Data with InfluxDBI have been playing with RaspberryPI for a while. There are several project I tried to do with RaspberryPI. These boards play a significant role in my home lab for different experiments like Docker Private Repository, Media Server, Ad Blocker with pi-hole, Secure Proxy for anonymity, secure network access with…Influxdb4 min read
Feb 1Explore InfluxDB: Part 1I have been trying to manage time to explore InfluxDB for observability. This article is one of many about InfluxDB and Telegraf. I will cover basic installation here. To install InfluxDB I have used docker-compose for now. In future, maybe I will choose and share some other form of installation. …Influxdb5 min read
Nov 25, 2021My Understanding about RUN, CMD and ENTRYPOINT in DockerfileContainerization 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…Docker6 min read
Sep 11, 2021How 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…Flask2 min read
Jul 1, 2021Apache Kafka in Docker Container and Implement it’s Functionalities with PythonAccording 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. What are the tools needed? Docker compose will…Kafka2 min read
Jan 15, 2021Raspberry Pi and Docker RegistryRecently I have been using a Raspberry Pi 3B+ bought from a classified advertisement site called Bikroy.com. A student wanted to sell this, as his final college project was done. It was cheaper with an acrylic casing and a fan. However, I wanted to use this Pi for several pet…Raspberry Pi3 min read
Oct 12, 2020Update MongoDB data as like as where clauseSo, I needed to update a value of every document in a collection. {"_id": **, "status": "SOLD"} {"_id": **, "status": "SOLD"} I need those to be {"_id": **, "status": "INACTIVE"} {"_id": **, "status": "INACTIVE"} How? The answer should be updateMany try { db.COLLECTION.updateMany( {status: "SOLD"}, {$set: {current_value: "INACTIVE"}} ); } catch (e) { print(e); }Mongodb1 min read
Oct 5, 2020Starting using Tornado for the First TimeNow it is around 07:20 PM of 5th October, 2020. I was thinking about trying this Python Framework named “Tornado Web Server”.Python1 min read
Mar 7, 2020Traffic Mirroring to load test web applicationGenerating real traffic on your application is hard. Successful load testing lends the assurance of a high-quality application that can serve a large number of users of the organization. First of all, Why do we need load testing? When testing our website, app or API endpoint under a load, we…Nginx3 min read
Jan 29, 2020Why & How to Redis? — Part-1I have been using Redis for more than one year. But initially It was only with caching plugins. I did not see beyond that. As caching, it was just like an unimportant image of Redis caught in my head. You might think why I am saying it as unimportant. Whenever we…Redis5 min read
