Ljubljana, Slovenia

Docker

Issuing requests against our microservice

In order to test our microservice, we require a database, running migrations, and our service itself. We’re going to build a docker-compose.yml file which takes care of all of this.

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Docker: Building images with security in mind

When it comes to running our microservices in production, we need to build docker images. Security is unfortunately an afterthought, so let’s try to figure out what we can do to increase security so it’s better than most of the stuff out there.

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A love song for Bash

There isn’t a day where I don’t see some kind of DevOps article that advocates some sort of higher order programming language for performing shell tasks, most recently one that uses Python to issue a POST request on a Discord Webhook API, when ever somebody logs into your server.

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Auto-scaling a Docker Swarm

Setting up a Docker Swarm (“docker swarm mode” if you want to be more accurate), is pretty much a trivial process. You need 3 nodes, create a swarm on one of them and join the other two nodes to the swarm. Simple. What if you wanted a 100 swarm nodes? How fast can you provision new nodes to scale up your Docker Swarm?

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Managing configuration with Viper

Viper is a popular configuration library that’s designed with 12 factor applications in mind.

Viper is a complete configuration solution for go applications including 12 factor apps. It is designed to work within an application, and can handle all types of configuration needs and formats. Viper can be thought of as a registry for all of your applications configuration needs.

Let’s use it to provide configuration for a typical application.

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