Clean Up Docker Resources featured image

Clean Up Docker Resources – Images, Containers, and Volumes

Docker is one of the most popular products in organizations these days. It makes the process of managing applications in containers very easy. Docker provides portability, performance, agility, scalability, and isolation to the applications since it uses containers. Containers are more portable and require fewer resources than virtual machines. As you work with Docker, you tend to accumulate an excessive …

Docker Ubuntu

How to install & operate Docker on Ubuntu in the public cloud

Docker is one of the most popular products in organizations these days. It makes the process of managing applications in containers very easy. Docker provides portability, performance, agility, scalability and isolation to the applications, since it uses containers, which are more portable and require less resources than virtual machines. In this tutorial, you will go through the steps required to …

VPN server under Docker

Run your own VPN server under Docker with OpenVPN Access Server

In this tutorial, I will be setting up an Open VPN server under Docker with CloudSigma. With CloudSigma’s cloud locations spread all over the globe, you can create a server in any of them and access the content from there. Creating the machine First, I am creating a machine with the following resources: 20 GHz CPU 16 GB RAM 20 …

Docker Hub on CloudSigma

How to Run Docker on CloudSigma (with CloudInit) Updated

In the past couple of years, Docker has received a tremendous amount of attention. While the concept of containers is hardly anything new (something we at CloudSigma talked more about in this previous post), Docker appears to have become the go-to container manager. To automatically deploy Docker at CloudSigma, you will need: An SSH key. Basic understanding of Docker. The official …

Manage Docker with Cgroups

Manage Docker resources with Cgroups

Last month I spoke at ApacheCon about Cgroups. It appears as very few Linux users (including yours truly until not too long ago) are familiar with Cgroups and their power. This is a pity, because Cgroups are very powerful, and allows you to allocate resources on your servers in a far more granular fashion than any other tool available in …

PaaS with Dokku

Build your own PaaS (with Dokku)

One of the most popular PaaS providers today is Heroku. Heroku, along with other PaaS providers like Engine Yard is loved by developers because it makes the deployment of a new application extremely fast and simple. It’s not hard that most developers would rather write code than setting up and troubleshoot servers. So it’s not hard to figure out why …