Docker is Great

My wonderful tribute to Docker.

The Problem

In addition to this website, I host and maintain another website, Discord bot, and some game servers. Previously, I would run it all manually on an old laptop sitting by a router under my desk. Any updates I wanted to make would require me ssh'ing in, running `git pull`, and then performing whatever other steps would be necessary to get the service running. Setting up and configuring NGINX for multiple domains was simple enough at first, but any time I needed to make changes or view my settings required me digging through `/etc` with many executions of `cat` and `ls`.

Overall, the setup, while I was proud of it for figuring it out on my own, just felt clunky and unsustainable. Clearly, something new was needed.

The Solution

Enter Docker. Now, I don't need to fret over if I need to re-run `npm install` or worry about a million python virtual environments and how to make all of them coexist peacefully. No, all I would need to do is run a few Docker commands and my service would be up and running! Just like that! I so desperately wish I learned to apply Docker in my personal servers sooner. It's absolutely amazing and I wish for anyone doing any sort of dev-ops to try it out.

The Setup

For my websites, I now have each running in its own Docker container with a specific port exposed. Then, in the same environment, I have nginx-proxy and its acme companion running in their own Docker containers. They both handle literally all of the ingress (with free SSL!) and it is truly joyous how it takes just a few commands to set that up. The Discord bot also resides in its own container that sets up the Node.js environment and runs the bot with pm2 to allow for automatic restarts in the event it crashes.

The Conclusion

Use Docker for anything hosted to hold onto sanity for just a little longer.