Software Architecture in Golang: Externalized Configuration Pattern

What is the Externalized Configuration Pattern? In simple terms the Externalized Configuration pattern consists of defining a dedicated secure data store in charge of handling of the values we need for our application in a secure way, those values typically include things such as credentials, keys or tokens that must not be made available in plain text.

In Go there are multiple ways to define configuration, some examples include:
■ Using CLI Parameters or Flags,
■ Using Property or Configuration Files, or
■ Using Environment Variables (my recommendation)

Using Environment Variables is the recommended way to define configuration values because it allows you to clearly separate the configuration from the application and the way it's being executed.

== Relevant links

== All Go/Golang Playlists

== Socials

00:00 - Introduction to the Externalized Configuration Pattern in Golang
00:43 - Configuration using Parameters or Flags in Golang (Externalized Configuration Pattern)
02:24 - Configuration using Properties Files in Golang (Externalized Configuration Pattern)
04:15 - Configuration using Environment Variables in Golang (Externalized Configuration Pattern)
05:42 - Configuration using HashiCorp Vault in Golang (Externalized Configuration Pattern)
08:33 - External Layer Configuration in Golang (Externalized Configuration Pattern)
10:53 - Conclusion of the Externalized Configuration Pattern in Golang

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[erikslorenz]

Thanks Mario! This is one of my favorite channels! I use go sparingly in my work (I do a lot of context switching between front and back end so I tend to use node) but I really appreciate you showing how the patterns apply to go.

I find myself using a lot of these patterns intuitively but it's fun to see them more formalized

For similar ones that are kind of grouped (secret key, secret value etc) I have found it useful to keep the secret in Json and then just parse it in the app. It gets kind of tedious adding every individual one in the vault imo

[MatiasSidler]

Thanks for these amazing videos! Please, keep uploading more like this one! Greetings from Argentina.

[GabrielPozo]

This is an interesting topic, thanks for sharing this kind of information!!

[kevinallen]

Mario, which tool are you using to draw on the screen?