DevOps

Elasticsearch Upgrade – What about index compatibility?

Upgrade Elasticsearch is an easy task, I always heard this sentence. Which is correct if you take care about indices and compatibility. At a customer, I had the chance to upgrade an old version of Elasticsearch, today I will share(…)

Elasticsearch queries: Domain Specific Language (DSL)

There are several query languages to query Elasticsearch (e.g. KQL, EQL, DSL, aso), in this blog I will speak about Domain Specific Language (DSL) which is the most flexible and gives access to all Elasticsearch options!(…)

Migrating Monitoring Data from Prometheus to VictoriaMetrics

Now that we know the advantages of VictoriaMetrics over Prometheus (see my previous blog post), we have to find a way to migrate data between the two. If you have the default retention set in Prometheus(…)

Prometheus vs VictoriaMetrics

As I went through many monitoring tools recently, I found that Prometheus is a de facto standard. At least from the way it is working. It is even a so strong standard that other Time Series Database (TSDB), like(…)

AWX log keeper.

The aim of this project is to use Ansible role to export AWX logs on disk, on daily basis, to have an easy access for debug and investigation.

Using WebHook’s from GitLab to execute external code and tools

by Alexandre Nestor Introduction WebHooks are HTTP callbacks that are triggered by events. In case of GitLab these can be events like pushing some code, or creating an issue, or pushing some comments. In this quick post I will(…)

Monitoring Short Living Processes with Prometheus

With the way Prometheus is gathering metrics, pull, it is not possible to get metrics from short living processes like batch jobs as: batch jobs can be shorter than scrap_interval batch timings and scrap_interval are not aligned In this blog,(…)

Predict the Future with Prometheus

As I am focusing on monitoring subject, I was wondering if it is possible to set alarm based on prediction instead of simple thresholds. Dynatrace has predictive anomaly detection feature, but in this blog, I want to test if on-premises(…)

dynatrace First Steps

In this blog, I will tell you how I setup my first agent, on a YaK deployed server. Of course, I will use YaK to deploy it. What is dynatrace? dynatrace is an observability platform which covers from infrastructure monitoring(…)

Rook Ceph: Tips and Tricks for storage using CephFS

In my Rook Ceph series, I’ve given first an introduction of Rook Ceph. Then I’ve shared the procedure on how to do a disk extension. With this blog post, I’d like to(…)