blog: add draft about scaling aws rds

content/posts/_2021-08-20-scaling-aws-rds.md

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+---
+title: How (not) to scale Amazon RDS
+date: "2021-08-20"
+---
+
+I'm currently working on a webbased service hosted on AWS. It's quite common
+for the application to see large spikes of users for a brief time. Because of
+this, our database has to withstand immense loads.
+
+So far, our model was to use a single beefy RDS Postgres database instance,
+simply because we didn't need to care about the size of the database back when
+the project started. As time went by, the amount of visitors grew and grew. In
+order to keep up with the load, we just kept on throwing more money at the
+beast that is AWS by using larger and larger database instances. This had to
+stop. Everyone has heard of autoscaling database and compute instances before,
+so I dove right into the rabbithole of "the hyperscalable cloud" (tm).
+
+# First Attempt: