session_11.md

Dockerize Shell Script Lab 1

In this lab session we are going to dockerize shell script

Step 1 :- Write the simple shell script

In this step we are going to write simple shell script which take run time arguments
create the file test.sh put below code in it and save it.

#!/bin/bash
echo "First Name: $FIRST"
echo "Last Name: $LAST"

Step 2 :- Write the dockerfile

In this step we are going to write the dockerfile which load the base image ,copy our contents to that image ,run our particular commands .
create the file dockerfile put below code in it and save it.

ARG CODE_VERSION=latest
FROM ubuntu:${CODE_VERSION}
COPY ./test.sh /
ENV FIRST=SAGAR
ENV LAST=JADHAV
RUN chmod u+x /test.sh
ENTRYPOINT ["/test.sh"]

Step 3 :- Build the image using dockerfile

In this step we are going to build the image using dockerfile

docker build -f dockerfile -t demo/labone:1 . 

Step 4 :- Run the Container using our image which perform our particular task

In this step we are going to run the container using our image

docker run demo/labone:1
docker run -e FIRST=AKSHAY -e LAST=ITHAPE demo/labone:1