Customizing Digitalocean Floating IPs

Digitalocean allows, for free, the option to add an additional IP address to your virtual machine ("droplet"). These floating IPs are similiar to Amazon AWS Elastic IPs and are tied to your account and location, rather than any specific instance This means that when an instance is destroyed, you can still preserve the floating address and migrate it to your new instance, providing it's in the same datacenter location. Floating IPs also have load balancing features, where if a site/instance goes down, it can automatically redirect to a backup instance. It is for these reasons it is…

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Migrating Nginx to a Docker Container

This is a write-up of how I migrated my Nginx web server from running as a standard service to running inside a Docker container. We will also see how to customize logging and network options, including configuring docker for IPv6 Preparing nginx.conf For me, I find it easier having a single nginx.conf file, appending the single flat file with vhosts generated from a template. For example, for additional vhosts, you could use this template The main things you'll need to comment out any access_log or error_log entries, created on a per-vhost basis. For now, I'm just…

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Getting Started with Docker using Cockpit (Fedora 26)

Introduction For ages, I've been wanting to get into Docker, especially how it's now the next big thing. In this tutorial, we will see how Docker works, it's basic commands, what you can do with it and also touch upon Docker security, such as isolation. So what is Docker? Docker is a platform used to deploy applications in a convenient way. It's kinda like virtual machines, but not quite. It's exploded in popularity because it makes system administration a lot more efficient and better. Installing stuff, especially web applications is annoying, compiling stuff, dependencies breaking, extraneous files left everything, then…

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