100 day jouney- DAY 4 Jenkins, Docker, Kubernetes, Ansible, and Terraform
Tags: devops, jenkins, docker, ansible
Published: 2024-06-24 05:13:01


#### Introduction

Hey there! Today, we're going to learn about some cool tools that help people make computer programs work better and faster. Think about how a team of people works together to make a movie. Each person has their own job, and they use different tools to help make the movie. In the world of computers, we use tools like Jenkins, Docker, Kubernetes, Ansible, and Terraform to help us build and manage software. Let’s explore each tool and see how they work!

### Popular DevOps Tools

#### 1. Jenkins

**What It Does:**
- **Automates Tasks:** Jenkins is like a machine that helps movie makers by automating repetitive tasks like editing scenes or adding special effects.
- **Plugins:** Jenkins can be customized with different add-ons to help with various jobs, like adding different special effects to the movie.
- **Pipeline:** Imagine an assembly line that moves movie scenes through different stages like filming, editing, and finalizing.

**Why We Use It:**
Jenkins helps people make sure their computer programs work properly by automatically building and testing them. It's like having a machine that helps put together and check scenes in a movie to ensure they look great.

**Example:**
Imagine you're making a movie. Jenkins can automatically edit the scenes, add special effects, and check if everything is perfect.

#### 2. Docker

**What It Does:**
- **Containerization:** Docker packages your movie files and all the necessary software into containers, ensuring everything you need is in one place.
- **Lightweight:** These containers are easy to carry around and don’t take up much space.
- **Portability:** You can take these containers anywhere and start working on your movie right away.

**Why We Use It:**
Docker helps developers ensure that their programs can run anywhere without problems. It's like packing all the movie files and editing software you need into a portable hard drive.

**Example:**
Imagine you have a portable hard drive with all the files needed to edit a movie. Docker makes sure you can take that hard drive to any computer, and you'll have everything you need to continue working on the movie just like at home.

#### 3. Kubernetes

**What It Does:**
- **Orchestration:** Kubernetes is like a director who coordinates all the different teams in a movie production, making sure everyone works together smoothly.
- **Self-Healing:** If a team member gets sick or makes a mistake, Kubernetes finds a replacement or fixes the mistake quickly.
- **Scalability:** If more scenes need to be filmed quickly, Kubernetes can bring in more team members to handle the increased workload.

**Why We Use It:**
Kubernetes helps manage lots of containers, making sure they all work together nicely. It’s like having a director who ensures every part of the movie production is running correctly and on time.

**Example:**
Imagine a movie set with multiple teams filming different scenes. Kubernetes makes sure each team has the right equipment and instructions, and if a team needs help, Kubernetes finds someone to assist.

#### 4. Ansible

**What It Does:**
- **Agentless:** Ansible doesn’t need any special tools installed on the other computers it manages.
- **Simple Language:** Uses easy-to-understand instructions to tell teams what to do.
- **Idempotency:** Ensures the same result every time, like following a reliable script.

**Why We Use It:**
Ansible helps automate tasks like setting up and configuring computers, just like giving all the movie teams the same script to follow.

**Example:**
Imagine you have a script for filming a scene. Ansible can give this script to every team, and they’ll all film the same scene without any mistakes.

#### 5. Terraform

**What It Does:**
- **Infrastructure as Code:** Terraform lets you describe your movie set layout and equipment setup using a special language.
- **Multi-Provider:** Supports different types of movie sets (like action, comedy, or drama).
- **Execution Plans:** Shows you a plan of what will happen before you start filming.

**Why We Use It:**
Terraform helps create and manage large setups, making sure everything is built correctly and efficiently. It’s like having a detailed plan for setting up a new movie set that everyone can follow.

**Example:**
Imagine you have a blueprint for setting up a new movie set. Terraform shows you the plan and lets you know what equipment you need and how to arrange everything step-by-step.


### Conclusion

These DevOps tools help people build and manage software just like different tools help make a movie. Jenkins is great for automating tasks, Docker for packaging, Kubernetes for managing teams, Ansible for giving instructions, and Terraform for planning big projects. By understanding these tools, you can see how they help create amazing software, just like movie-making tools help create blockbuster films!