100-Days-Of-DevOps-Challenge-KodeKloud

Docker Ports Mapping

The Nautilus DevOps team is planning to host an application on a nginx-based container. There are number of tickets already been created for similar tasks. One of the tickets has been assigned to set up a nginx container on Application Server 2 in Stratos Datacenter. Please perform the task as per details mentioned below:

Pull nginx:stable docker image on Application Server 2.
Create a container named cluster using the image you pulled.
Map host port 5002 to container port 80. Please keep the container in running state.

Steps

Login into App Server 2
Pull the docker image
```
 docker pull nginx:stable
```

Create a container with port mapping

 docker run -d --name cluster -p 5002:80 nginx:stable

Make sure container is running
```
 docker ps
```

Good to Know?

Docker Port Mapping

Purpose: Expose container services to host network
Traffic Routing: Route host traffic to container ports
Service Access: Make containerized services accessible
Load Balancing: Distribute traffic across multiple containers

Port Mapping Syntax

Basic: -p host_port:container_port
IP Binding: -p host_ip:host_port:container_port
Protocol: -p port:port/tcp or -p port:port/udp
Random Port: -P maps all exposed ports to random host ports

NGINX Container

Web Server: High-performance HTTP server and reverse proxy
Default Port: Listens on port 80 inside container
Static Content: Serves static files efficiently
Reverse Proxy: Can proxy requests to backend services

Container States

Running: Container is actively executing
Stopped: Container exists but not running
Paused: Container processes are paused
Restarting: Container is in restart loop

This site is open source. Improve this page.