Introduction This is just the first Blog in the Series of Blogs we will Write on this topic. If you are a developer or involved in any kind of web & app development and looking for a simple yet effectively functional technology then you are going in the right direction of thinking to deploy the application with the Docker. Docker is nothing but a container which communicates directly with the Linux kernel, hence it is very useful and easy to command in Linux systems. Oh! even Windows and MAC are not left behind to use containers. You may have heard about the vast numbers of developers talking about docker & containers, isolated virtual machine, hypervisors and other DevOps related systems. Today we will talk about the Introduction of Docker. What is a Docker? Docker is a very simple software for containerized applications. The concept of a container is to be a minimum, stateless environment for running a software. A container image is lightweight, separate, executable package of a software which packs together everything needed to run it: system libraries, settings, code, run-time, dependency, system tools. Bypassing all the technical words, we can say that it’s just a tiny package of a virtual machine for running an application which we put in it. It is obvious that everyone is very familiar and have heard about Virtual Machine and Hypervisor. Why a Docker? With Docker we can set-up the environment according to a particular application and process the image building. Docker image is a template (a required libraries) needed to run Docker container and also we need a registry to store images either on local or on web-server. Similarly a web registry (online registry), Docker Hub is a cloud-based registry service allowing you to link to the code repositories, building your images and testing them, manually storing the pushed images, and links to the Docker Cloud so you can deploy images to your hosts. We can also get pre-built images and get up and running in a minimum time than it would take with a normal VM. But, the biggest advantage is creating a homogeneous environment. By, installing Docker, the need to install different dependencies to run your application will no longer be required. Docker is all you need! This being available on all platforms, every developer in your team will be working in the same environment. The same applies to your development, staging and production servers. Now, this is cool. No more “it works on my machine.” Conclusion Here, an endpoint comes to the advantages of using Docker for deploying applications with minimum hassle and an image which is the pack of all required configuration. Stay Tuned to read the next blog in the series!. We will be back with Part II soon!
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Single-Page Applications (SPAs) are Web apps that heap an individual HTML page and progressively redesign that page as the user communicates with the app. It is also known as Single page application. Microsoft’s MSDN informed us that SPAs use AJAX and HTML5 to create fluid and responsive web apps, without constant page reloads.
On traditional websites, when visitors click on the links, these links generally lead to a new URL and load an entirely new page. In SPAs, the whole page doesn’t reload; instead, certain content is changed, loaded, and swapped out within the same page.
One of the best examples is Facebook : It is almost a SPA - most interactions don't require loading a new webpage. One example where it still happens is clicking on "Photos" section in the left side menu. It does send your browser to a new URL. I believe facebook engineers are managed in the direction of excluding these counter-examples and delivering real SPA experience. Let's have a look at the below example.
In above image, the page you can see is mainly the profile page of FB. Just note down the URL. On clicking any of the particular photos, the below image will appear.
In above image, we can see that URL is changed but page remains same which is actually a true example of SPA.
SPA Pros :
SPA Cons :
Advantages of a Single-Page Over Multi-Page Design :
Interpreted Mobile Development: You can reuse the same backend for web application and native mobile application.
Easy Navigation Path: There is no real way to get lost on a single page website since there is no other approach to get info like scrolling down the page.
Limited Amount of Bandwidth: Multi-page website takes a longer time to load. It still influences user experience. Single-page website needs limited amount of bandwidth than multi-page.
Enhanced Mobile-Friendliness: Single-page websites are much less demanding to transform into rapid loading responsive websites since it simply requires less time. No complicated navigation or extra bells and whistles make this task an easy thing. It takes a lot of efforts to build a mobile version of a multi-page website. Of course, responsive websites are not restricted in a number of pages.
9series is among leading and fast-growing open source PHP development companies in India, mastering in developing stunning native apps to awe-inspiring cross-platform apps giving innovation yet another dimension. Our main focused services are Mobile app development, Website & Web app development.