Addressing day-to-day issues
In this section, we will discuss a few issues you would encounter on what we will call Day 2. If we mark Day 0 as the moment when we prepare the GitOps and Argo CD adoption and start working on proofs of concept (POCs) and Day 1 when we actually start implementing and deploying our GitOps solution, then Day 2 would be when we are in production, and we need to take care of the whole live setup. We went through important topics such as high availability (HA), disaster recovery (DR), and observability in Chapter 3, Operating Argo CD, and now we will see some issues that don’t fall into any of these categories.
Restarting components
Back in 2018 when we started with Argo CD, we had cases when we deployed a new version of one of our microservices and the synchronization just got stuck. The user interface (UI) showed that the reconciliation loop was ongoing, but nothing was happening, there was no progress, and no error was displayed. That’...