Why choose Kubernetes?

Windows is perhaps the operating system that requires more attention when installing Docker. There are some prerequisites that need to be taken into consideration.

Supported Windows versions

Before installing Docker for Windows make sure you have a compatible version of Windows. Currently the supported versions are: Windows 10 64-bit: Home, Pro, Enterprise, or Education, version 1903 (Build 18362 or higher).

Windows Subsystem for Linux

As described in the official Docker documentation, you need to install the “Windows Subsystem for Linux” before installing Docker on Windows.

(more…)

In recent years, Docker has earned an important place in the daily lives of developers. Let’s go take an overview of this tool and find out how Docker works behind the scenes.

Features of Docker

One of the most important features Docker offers is instant startup time. A Docker container can be started in a fraction of the minimum time. This is a very fast action that is incomparable with the minutes it takes to start a virtual machine.

Docker uses the features of the Linux kernel for booting and interacting with containers. Due to this dependence on the Linux kernel, when Docker is run on other systems, such as MacOs, an additional layer of virtualisation is started, which is normally “masked” by Docker for Mac (as a user, you will not notice the difference, except in terms of speed). (more…)

Docker Compose is one of the most useful tools for developers and sysadmins. In fact, most IT jobs require knowledge of Docker and Docker Compose. Knowing how to use these technologies will undoubtedly be an advantage in continuing your career.

What is Docker compose?

In a nutshell, Docker Compose is a tool that allows you to manage multiple Docker containers. Do you remember micro-services, i.e. the concept of dividing a web application into different services? Well, these services run in individual containers that must be managed and must be configured to communicate with each other. Docker compose allows you to do just that. (more…)

Let’s continue with our guides dedicated to Docker. Today we’ll take a detailed look at a topic that is really fundamental for anyone involved in web development: Docker containers.

A container is the running instance of an application in an isolated environment that is dynamically allocated resources to run. Inside it, the container has the application to run and everything it needs: runtime, libraries, configuration, etc.

What is the difference between an image and a container?

A docker image is a static package containing all the resources necessary to run an application. (more…)

In order to develop software, it is necessary to have a local environment with all the available services needed to run the application being developed correctly.

For example, if you are developing a web application with Symfony, you will need to have a webserver such as Apache or Nginx, a PHP interpreter and probably a database on which to save data, such as Postgre or MySql. (more…)