Table of Contents

1. Challenge

   Practice Docker by Running the hello-world and busybox Images

   If docker is installed and the docker.service enabled, then a great way to test the ability to run a container is to use the docker subcommand run with a simple image like hello-world. The busybox image is another simple image that we will pull and run a command in. The ps subcommand is useful for viewing running or all containers, and images will list the images in the local repository. Using the rm subcommand we can remove containers and with rmi images.

   sudo -i
   docker run hello-world
   docker run --name hi hello-world
   docker search busybox
   docker pull docker.io/busybox
   docker run --name busy -it busybox /bin/sh
   exit
   docker ps -a # shows a <name> for hello-world
   docker rm <name>
   docker rm hi
   docker ps -a
   docker images
   docker rmi hello-world
   docker images
   

2. Challenge

   Create an apache2 Container Based On the Image httpd:2.4 Mapping localhost:8080 to the Container Port 80

   Use docker run to create a container named apache2, based upon the httpd:2.4 image, and map the HTTP port with -p 8080:80.

   docker run --name apache2 -p 8080:80 httpd:2.4 
   #Use CTRL+C to exit output from running container
   docker ps
   docker ps -a
   docker start apache2
   docker logs apache2
   docker stats apache2
   CTRL+C
   lynx -dump http://localhost:8080
   
   

3. Challenge

   In the apache2 Container, Update the Default index.html file, Then Verify and Commit the Changes

   docker exec -it apache2 bash
   ls
   cd htdocs
   echo 'apache2 container' > index.html
   exit
   lynx -dump http://localhost:8080
   docker commit -m 'Updated index.html' apache2
   

4. Challenge

   Restart the apache2 Container and Verify Changes Are in Effect

   docker ps
   docker stop apache2
   docker ps -a
   docker start apache2
   lynx -dump http://localhost:8080