Web Application for Docker Using JavaScript
JavaScript
JavaScript is a programming language that is:
- High level: It provides abstractions that allow you to ignore the details of the machine where it’s running. It manages memory automatically with a garbage collector, so you can focus on the code instead of managing memory locations, and provides many constructs which allow you to deal with highly powerful variables and objects.
- Dynamic: As opposed to static programming languages, a dynamic language executes at runtime many of the things that a static language does at compile time. This has pros and cons, and it gives us powerful features like dynamic typing, late binding, reflection, functional programming, object runtime alteration, closures and much more.
- Dynamically typed: A variable does not enforce a type. You can reassign any type to a variable, for example assigning an integer to a variable that holds a string.
- Weakly typed: As opposed to strong typing, weakly (or loosely) typed languages do not enforce the type of an object. This allows more flexibility but denies us type safety and type checking (something that TypeScript and Flow aim to improve)
- Interpreted: It’s commonly known as an interpreted language, which means that it does not need a compilation stage before a program can run, as opposed to C, Java or Go for example. In practice, browsers do compile JavaScript before executing it, for performance reasons, but this is transparent to you as there is no additional step involved.
- Multi-paradigm: The language does not enforce any particular programming paradigm, unlike Java for example which forces the use of object-oriented programming, or C that forces imperative programming.
In case you’re wondering, JavaScript has nothing to do with Java, it’s an unfortunate name choice but we have to live with it.
JavaScript is one of the most popular programming languages in the world, and is now widely used also outside of the browser. The rise of Node.js in the last few years unlocked back-end development — once the domain of Java, Ruby, Python, PHP, and more traditional server-side languages.
Client-Side JavaScript
Client-side JavaScript is the most common form of the language. The script should be included in or referenced by an HTML document for the code to be interpreted by the browser.
It means that a web page need not be a static HTML, but can include programs that interact with the user, control the browser, and dynamically create HTML content.
The JavaScript client-side mechanism provides many advantages over traditional CGI server-side scripts. For example, you might use JavaScript to check if the user has entered a valid e-mail address in a form field.
Docker platform
Docker is an open platform for developing, shipping, and running applications. Docker enables you to separate your applications from your infrastructure so you can deliver software quickly.
With Docker, you can manage your infrastructure in the same ways you manage your applications. By taking advantage of Docker’s methodologies for shipping, testing, and deploying code quickly, you can significantly reduce the delay between writing code and running it in production.
Dockerfile
Each Docker container starts with a Dockerfile. A Dockerfile is a text file written in an easy-to-understand syntax that includes the instructions to build a Docker image (more on that in a moment). A Dockerfile specifies the operating system that will underlie the container, along with the languages, environmental variables, file locations, network ports, and other components it needs — and, of course, what the container will actually be doing once we run it.
Docker image
Once you have your Dockerfile written, you invoke the Docker build utility to create an image based on that Dockerfile. Whereas the Dockerfile is the set of instructions that tells build how to make the image, a Docker image is a portable file containing the specifications for which software components the container will run and how. Because a Dockerfile will probably include instructions about grabbing some software packages from online repositories, you should take care to explicitly specify the proper versions, or else your Dockerfile might produce inconsistent images depending on when it’s invoked. But once an image is created
Task Description 📄
⚙️ Task 7.1 -
📌 In this task you have to create a Web Application for Docker (one of the great Containerization Tool which provides the user Platform as a Service (PaaS)) by showing your own creativity and UI/UX designing skills to make the WebPortal user friendly.
📌 This app will help the user to run all the docker commands like:
👉docker images
👉docker ps
👉docker run
👉docker rm -f
👉docker exec
Front-end Code
basic.html
This is a sample code of HTML and JavaScript
Back-end Code-
Back site we are used python scripting language
Backend.py-
Final Outputs-
These are the some sample snapshot inside text box we are use all type docker command just like ok show image, PS command ,RM command, run command all type we are provide because back inside all the output in comes in Linux system.
