How to Install and Access Jenkins Using Docker?| S-Logix

Description:
This task demonstrates how to create a Python script, write a Dockerfile, build a Docker image, and run it as a container that prints output from inside Docker.

Step 1: Check Docker Installation
Description: Verify that Docker is installed and working on your system.
Command:
```
docker --version
            
```
If it shows a version number → Docker is installed successfully.
Step 2: Pull Jenkins Image
Description: Download the official Jenkins Long Term Support image.
Command:
```
docker pull jenkins/jenkins:lts
            
```
lts → Long-Term Support version (recommended for production)

Step 3: Run Jenkins Container
Description: Start Jenkins container and expose required ports.
Command:

docker run -d -p 8092:8080 -p 50002:50000 --name myappjenkins jenkins/jenkins:lts

Command	Purpose
-d	Run as background service
-p 8092:8080	Jenkins web UI
-p 50002:50000	Jenkins agent communication
--name myjenkins	Name for container

Check if container is running:

docker ps

Step 4: Access Jenkins in Browser
Description: Open Jenkins dashboard using browser.
Open:
➡ http://localhost:8092
You will see Initial Jenkins Setup screen requesting the admin password.
Step 5: Get Initial Admin Password
Description: Retrieve Jenkins system password stored inside the container.
Command:
```
docker exec -it myappjenkins cat /var/jenkins_home/secrets/initialAdminPassword
            
```
```
1d1b12d3aece4c659540f5ef6921ae58
            
```
Copy the displayed password and paste it into the browser.
Step 6: Install Suggested Plugins
Description: Jenkins installer recommends default plugins required for pipeline jobs.
Action:
➡ Click Install Suggested Plugins
Wait for installation to complete.