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Hot Database Connections for Serverless Functions

Preamble — Problems to Solve

Firing up new Serverless containers — a.k.a. cold starts — takes from one to several seconds (time varies per platform). To eliminate such cost/latency, Serverless frameworks keep already started containers warm for a period of time (duration varies per provider).

Serverless functions might make database access. Although less costly than starting new Serverless container, database connection creation and tear down may cost tens or even hundreds of milliseconds depending on your DBMS environment. This problem is exacerbated with Serverless functions that are are short-lived and cannot afford such cost on every call.

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Comparing Container Pipelines

Introduction

Containers brought a monumental shift to DevOps by allowing teams to ship code faster than ever before. However, we still have to go through the process of building, packaging, and deploying those containers. That's why we use container pipelines.

However, there are many different choices when it comes to container pipelines. How do we know which one to use? In this article, we'll compare six choices and cover the configuration, benefits, limitations, and pricing of each.

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How Do Developers Choose the Best Fit for Containers-as-a-Service (CaaS)?

The emergence of cloud-native development and containers has redefined how software is developed. But not all organizations have the resources or expertise to set up the required infrastructure to support a containerized application. Luckily, cloud vendors offer Containers-as-a-Service to help developers to capitalize on the benefits of cloud native development.

All three leading cloud providers have CaaS products but choosing the right one can be a challenge. While everyone has different requirements, it is always beneficial to understand what solutions others are using and why, to help inform decisions.