DEV Community: Rahul Saxena

Why Docker Popular ?

Rahul Saxena — Sun, 23 Jun 2024 14:45:03 +0000

Why Docker Popular-

Portability: Docker ensures that applications run consistently across any environment, from a developer's personal laptop to the production server, avoiding the common pitfall of encountering bugs and inconsistencies due to environment-specific differences.
Efficiency: Containers share the host system's kernel and do not require an operating system per application, making them lighter and faster than traditional virtual machines. This efficient use of system resources translates to faster start-up times and more scalable solutions.
Isolation: Docker provides application isolation, which improves security and allows multiple containers to run simultaneously on the same host without interference. Each container has its own filesystem, ensuring processes are separated and resource usage is controlled.
Version Control and Component Reuse: Docker images can be versioned, shared, and reused. This is akin to version controlling the entire environment. Developers can push their Docker images to a registry (such as Docker Hub) and pull them down for use without needing to set up environments manually.
CI/CD : Docker simplifies the development process by allowing developers to create local environments that match production systems. Additionally, Docker works well with continuous integration and deployment (CI/CD) systems Automating the deployment process and ensuring that applications are deployed consistently.

What is Docker | Visual thinking |2024

Rahul Saxena — Sun, 23 Jun 2024 14:38:43 +0000

What is Docker ?

Docker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly.

With Docker, you can manage your infrastructure in the same ways you manage your applications. By taking advantage of Docker's methodologies for shipping, testing, and deploying code, you can significantly reduce the delay between writing code and running it in production.

@Rahulcloud2023

Terrafrom Sketch Notes | Terraform Architecture| Part -1.1

Rahul Saxena — Sun, 16 Apr 2023 05:20:25 +0000

Terraform is an open-source infrastructure-as-code (IaC) platform that allows users to declaratively define, provide, and manage infrastructure resources.

There are several layers to examine when it comes to Terraform's architecture:

Configuration Layer: This is where the Terraform code is written. It defines the infrastructure resources that need to be created, updated, or deleted.

State Layer: This layer is responsible for storing the current state of the infrastructure. It tracks the resources that have been created, updated, or deleted, and stores this information in a state file.

Provider Layer: Providers are plugins that Terraform uses to interact with infrastructure resources. Each provider is responsible for a specific set of resources (e.g. AWS, Google Cloud, Azure, etc.).

Execution Layer: This layer is responsible for executing the Terraform code. It reads the configuration files, interacts with the providers to create/update/delete resources, and updates the state file

Terraform's architecture is modular and adaptable in general, allowing users to specify and manage infrastructure resources across numerous cloud providers and on-premises infrastructure.

Terrafrom Sketch Notes | What is Terraform | Part -1

Rahul Saxena — Wed, 12 Apr 2023 10:32:24 +0000

Terraform is an open-source infrastructure as code (IaC) software tool created by HashiCorp. It allows developers to define and provision infrastructure resources across multiple cloud providers, such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP), as well as on-premises data centers in human-readable configuration files that you can version, reuse, and share.

It is written in go language.

@Rahulcloud2023