Dockerise simple customized website — Step by step implementation
Prerequisite: Need an Ubuntu machine with Docker installed.
Refer my article for installing Docker in Ubuntu machine: https://shorturl.at/6oJ7w
Let's quickly create a personalize webpage and once it was dockerised we will try adding more lights to the webpage.
Here is my quick webpage content for my index.html file:
<html>
<body>
<h1>Welcome to Hello World! </h1>
</body>
</html>Assume you have the Ubuntu machine and Docker installed and here is the reference to my earlier medium.com article for quick or easy reference:
Login to the Ubuntu machine and create a working folder DockerFolder and move into this new folder
Create an index.html inside this new folder using the vi editor as below:
Note: Incase if vi editor not available by default in Ubuntu, try use the below commands for clean and quick install
sudo apt-get update
sudo apt-get install vim -yIt's time to create a simple Dockerfile (Please note the file and it should be of this name as best practice) for containerizing the Ubuntu base image with apache2 webserver with the customized webpage to the root folder as below:
FROM ubuntu
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update -y
RUN apt-get install apache2 -y
COPY ./index.html /var/www/html
Next to build this file to create an image by executing the following command
sudo docker build . -t bsrinivasancbe/apachehelloworld2024This command will execute the configuration details in the current folder with the file named Dockerfile and an image will be created with the name “bsrinivasancbe/apachehelloworld2024”
Execute the following command to list out all the docker images in the current directory
sudo docker images
Now the image needs to be executed to create the instance namely container as below:
sudo docker run -it -p 80:80 -d bsrinivasancbe/apachehelloworld2024Also to list all the active containers in the current directory, execute the following command:
sudo docker ps
Hurray! you have created the docker container running on port 80 in an easy peasy steps!
Let say we want to verify the container in action, then we have to perform 2 more actions namely: enable the port 80 for the VM and start the Apache ser
vice by logging into the container as below:
To login to the running container execute the below docker command with <<containerid>> replaced with actual containerid that is listed from the above command
sudo docker exec -it <<containerid>> bashTo check the Apache service is running inside the container, execute following command to verify
service apache2 statusTo start the Apache service execute the below command and again check with above command to see the service got started now.
service apache2 start
Once done exit from the container by executing the below command
exitNow traverse to the browser and access the Public IP of the VM to see the web page getting accessed as below
Since our scope is done, let's do some clean up as best practices by stopping the container and removing from the VM machine from the following commands set:
sudo docker stop <<container_id>>
sudo docker rm <<container_id>>
Then we can delete the images by referring the image id as below
sudo docker rmi <<image_id>>
That’s it, Thank you for reading, Happy Dockerising!
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