Posted on

Docker Volumes: An Introduction

Docker volume

Docker volumes are very useful when we need to persist data in Docker containers or share data between containers. Docker volumes are important because when a Docker container is destroyed, it’s entire file system is destroyed too. So if we want to keep this data in some way, it is necessary that we use Docker volumes. Docker volumes are attached to containers during a docker run command by using the -v flag When Docker Volumes…

Read more

Posted on

Understanding Docker Containers

Docker container

In a previous article, we talked about Docker images but we could only use a small section to talk about Docker containers. Now, let’s go deeper. Docker Containers A Docker container is created from a Docker image. If a Docker image is a recipe, think of the Docker container as the dish that is prepared A container image is a lightweight, stand-alone, executable package of a piece of software that includes everything needed to run…

Read more

Posted on

Working Effectively with Docker Images

Docker Images

Docker is a wonderful tool for many things. A few of them are; As a version control system for your entire app’s operating system by storing each configuration as a central build. To distribute/collaborate our app’s operating system with our team. To run your code on your laptop in the same environment as you have on your server. We are going to explore Docker images. Why we should use them, and how to go about…

Read more

Posted on

Easy and powerful reverse proxy and load balancing with Docker

nginx reverse proxy

I build a lot of websites, and I run them in Docker containers. What happens is, I end up with URLs like this 0.0.0.0:1234. This is a problem because, They are difficult to remember Do not allow sub-domains. Bad for password managers My initial solution was to add a reverse proxy with Nginx so I have virtual hosts that point to my containers. However, this means I was writing the same Nginx configuration, over and over…

Read more

Posted on

Moving a WordPress site into a Docker Container

docker-wordpress

WordPress is a very popular and flexible Content Management System (CMS). If you build websites, you are likely to have worked with (or had someone ask you to) WordPress. There are several tutorials about how to set up a new WordPress site with docker. Here is a very good one. However, no one really says how to move an existing WordPress site into a docker container. I have several servers on Digital Ocean, Linode and Vultr,…

Read more

Posted on

Docker, Nginx and Let’s Encrypt for a secure website

docker

Let me show you how I use Docker, Nginx and Let’s encrypt to host my websites and serve secure https content. I use Docker to host a lot of my websites, and with Let’s Encrypt now issuing free SSL certificates, there is no excuse for not having one. Things to note My test server is running on Ubuntu 16.04. Though the process should be similar on most other servers. You should have pointed your domain…

Read more