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In this lab, we will be creating docker image with dockerfile and run a container using it

In case you prefer a video, check below our YouTube video for this lab

Open Play with Docker

login with your docker hub account.

Task: Create a Dockerfile to create a docker image

vi Dockerfile

FROM ubuntu

RUN apt-get update  

RUN apt-get install figlet  

CMD ["figlet", "hello docker"]  

Task: Build docker image with Dockerfile from previous step

docker image build -t imageformfile:0.1 .

Task: Run docker container with image build in previous step

docker container run imageformfile:0.1

Task: List all docker images on local system

docker image ls -a

Task: List all all changes made to docker image

Use image from previous step

docker image history <image ID>

Update you docker image with 0.2

vi Dockerfile

CMD ["figlet", "hello docker 0.2"]  

TasK: Build docker image with updated Dockerfile from previous step

update tag to 0.2

docker image build -t imageformfile:0.2 .

Task: Run docker container with image build in previous step

docker container run imageformfile:0.2

Task: Delete all open nodes/instances and close session

1. Select the node and click on DELETE
2. Repeat same for any other open nodes
3. click close session

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