microservices-demo VS loki

As an inbetween beginner and advanced you can look at this project - https://microservices-demo.github.io/ its more practical and again uses Python.

I'm new to kubernetes world. I got sample kubernetes deployments (like sock-shop) working end-to-end without any issues. I tried NodePort to access the service but instead of running it on a different port I need to run it exact port 80 on the host. I tried many ingress solutions but didn't work.

Here's an example app that fits all of the criteria above. Can be used as a good reference point. https://github.com/microservices-demo/microservices-demo

1) Deploy the Sock Shop app in our K8s cluster. While we’ll use Sock Shop as our example application, you can deploy your own app to your cluster and still follow along. 2) Deploy APIClarity in our K8s cluster and configure monitoring 3) Observe API traffic on the APIClarity dashboard 4) Review and create an API specification and view the generated OpenAPI spec in Swagger format. 5) Identify deviations from an API spec along with usage of shadow and zombie APIs. 6) View and filter API events

Depending on what you want there is Microservice demo from Google or Sock Shop from Weaveworks.

There are sample application that you could deploy, for example https://github.com/microservices-demo/microservices-demo

I also needed to make a small patch to Promtail to make this work: https://github.com/grafana/loki/pull/10256

We don't pull logs, we forward logs to a centralized logging service.

Over the past few months, I've been spending a lot of time creating dashboards on Grafana using Loki for MyUnisoft (the company I work for).

For log systems you generally don't migrate data. Logs lose value over time. What you want to do is to go ahead and start ingesting data into the new system (OpenObserve in this case) and slowly, the data in the old system will become stale and then you can retire it. However if you need to export logs anyhow, there is no straightforward way in loki to do this. You could run a script to query loki and export it to a file. If found this thread with a sample script - https://github.com/grafana/loki/issues/409

That snap is woefully out of date. The upstream repo was recently updated to 2.8.2, but the snap stable channel has 2.4.1 from 18 months ago. https://github.com/grafana/loki/releases/tag/v2.8.2

Loki

I installed promtail a few weeks back and I ran into this bug, that has been outstanding for months: https://github.com/grafana/loki/issues/8663 (e.g. a fix had been written but had not been released):

Due to a buffering issue, Loki would exit in case of configuration error without printing any error message or anything at all

There is definitely something weird about how the project is run.