Working with Docker Images

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Pull the latest `alpine` image.

1. Pull the latest alpine image from Docker Hub:

   docker image pull alpine:latest

2. You can confirm it is there with:

   docker images

Pull the latest `httpd` image.

1. Pull the latest httpd image:

   docker pull httpd:latest

   Note: If you don’t put the version, the latest version is assumed.

Pull nginx 1.15.

1. Pull nginx version 1.15:

   docker pull nginx:1.15

2. To confirm that it is there:

   docker images

Compare the history.

1. Look at the history for both the httpd and nginx images.

   docker history httpd

2. Note the following command gives an error because the latest version is assumed:

   docker history nginx

3. When you specify the right version, the command succeeds:

   docker history nginx:1.15