Terraform is an open-source infrastructure as code software tool that provides a consistent CLI workflow to manage hundreds of cloud services. Terraform codifies cloud APIs into declarative configuration files.

Ansible is an open-source automation tool, or platform, used for IT tasks such as configuration management, application deployment, intraservice orchestration, and provisioning. Automation is crucial these days, with IT environments that are too complex and often need to scale too quickly for system administrators and developers to keep up if they had to do everything manually. Automation simplifies complex tasks, not just making developers’ jobs more manageable but allowing them to focus attention on other tasks that add value to an organization. In other words, it frees up time and increases efficiency. And Ansible, as noted above, is rapidly rising to the top in the world of automation tools.

NGINX is open-source software for web serving, reverse proxying, caching, load balancing, media streaming, and more. It started out as a web server designed for maximum performance and stability. In addition to its HTTP server capabilities, NGINX can also function as a proxy server for email (IMAP, POP3, and SMTP) and a reverse proxy and load balancer for HTTP, TCP, and UDP servers.

Jenkins is a free and open-source automation server. It helps automate the parts of software development related to building, testing, and deploying, facilitating continuous integration and continuous delivery. It is a server-based system that runs in servlet containers such as Apache Tomcat.
Jenkins offers a simple way to set up a continuous integration or continuous delivery (CI/CD) environment for almost any combination of languages and source code repositories using pipelines, as well as automating other routine development tasks. While Jenkins doesn’t eliminate the need to create scripts for individual steps, it does give you a faster and more robust way to integrate your entire chain of build, test, and deployment tools than you can easily build yourself.

Node.js is an open-source, cross-platform, back-end, JavaScript runtime environment that executes JavaScript code outside a web browser

What is Blockchain?

Blockchain is a decentralized, distributed ledger technology that allows secure, transparent and tamper-proof recording of transactions and data. It was initially introduced as the underlying technology of the cryptocurrency Bitcoin, but has since found use in a wide range of applications beyond finance.

In a blockchain system, transactions are grouped into blocks, which are linked together in a chain. Each block contains a cryptographic hash of the previous block, which ensures that any alteration to a previous block will be immediately detected. This makes the blockchain resistant to tampering and hacking.

In addition to its security features, blockchain technology has several other benefits, including its ability to provide transparency, accountability, and traceability. It is being used in various industries, such as supply chain management, voting systems, and smart contracts.


Why Blockchain is so popular?
Blockchain is popular for several reasons, including:

Decentralization: Blockchain is a decentralized system, meaning that it is not controlled by a single entity, such as a government or a financial institution. This makes it more democratic and resistant to censorship or manipulation.

Security: Transactions on a blockchain are secured using advanced cryptography, making them almost impossible to hack or alter without being detected.

Transparency: Blockchain technology allows for transparent, tamper-proof recording of data and transactions, making it easier to track and verify information.

Efficiency: Blockchain transactions can be completed quickly and without the need for intermediaries, making them faster and more cost-effective than traditional transactions.

Smart contracts: Smart contracts are self-executing contracts with the terms of the agreement directly written into the code. This allows for automatic execution of transactions, reducing the need for intermediaries and streamlining the process.

These advantages have led to the adoption of blockchain technology in various industries, including finance, healthcare, logistics, and more. Additionally, the potential for blockchain to disrupt traditional industries and create new business models has made it a popular topic among investors and entrepreneurs.

MongoDB is an object-oriented, simple, dynamic, and scalable NoSQL database. It is based on the NoSQL document store model. The data objects are stored as separate documents inside a collection — instead of storing the data into the columns and rows of a traditional relational database.

Apache Kafka is a popular open-source data streaming platform providing high-throughput data pipelines. As such, Instana has included comprehensive Kafka Monitoring in our Infrastructure and Application Monitoring solution. Instana discovers all Kafka instances present in the environment, understands the dependencies and interactions between the cluster and its servers, and automatically begins monitoring the health and performance of each instance.

React Native is an open-source JavaScript framework, designed for building apps on multiple platforms like iOS, Android, and also web applications, utilizing the very same code base. It is based on React, and it brings all its glory to mobile app development.

Scala is a strong statically typed general-purpose programming language which supports both object-oriented programming and functional programming. Designed to be concise, many of Scala's design decisions are aimed to address criticisms of Java.

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