Docker is an open source containerization toolkit which enables developers to package applications into containers.

As the name suggests, Docker is like a container ship which provides means to sort, link, manage and ship containers from a d...

Think like a Virtual Machine but:

• light weight
• great resource efficiency
• improved developer productivity

Where containers differ from VMs is the fact that they take advantage of the Linux kernel which comes with pro...

Containers don’t come with the weight of a full OS image and a hypervisor.

Containers include only OS processes and dependencies necessary to execute the code inside them.

Containers occupy less space(MBs not GBs) which means you can run multiple copies of the same ap...

Docker enhances the native Linux containerization technologies which enables:

• seamless portability: can run natively across any desktop, data center or cloud development
• granular updates: only one process runs in a container. An application can...

DockerFile - every container has one and states the instructions for building the container’s image. It consists in command-line instructions;

Docker images - contains executable source code, libs and dependencies the code needs; Read-only ...

On the same host:

• Docker Compose - creates a .yaml which specifies the used containers; can deploy and run containers from a single command; can define persistent volumes for storage, databases and service dependencies;

On different hosts:

Yo...