tssganesh / ubuntush

The repository contains Dockerfile and scrip.sh to build an image with shell script. The image is based on ubuntu:latest image and script prints out the values to the console.

Overview: The repository is useful for running Custom Script(Shell script) Inside Docker container.

Files:

• Dockerfile
• main.sh

Main.sh:

• Prints incremental values to the console.
• In the beginning of the file mention "#!/bin/bash". Otherwise, the script won't be run and results in an error.

Dockerfile

• Base image is ubuntu
• Copies the main.sh script from the repository to the root directory
• Converts the main.sh to the executable using chmod command
• Uses CMD to invoke the main.sh file( When running the container main.sh script will be invoked)
• If / is not specified in the CMD, container looks in the Path directory for the executable.

Building the docker image:

• To build the docker file, download the repository and ensure that you are in the same directory where Dockerfile and main.sh files are located
• Execute the below command
• docker build -t="localimageName" .
• Verifify the image using "docker images" command
• docker run --rm -it localimageName
• It prints the variable value and also waits for 2 seconds to display the next incremented value.