Using Dynatrace Releases

05/06/2021

This post will cover how to use the Dynatrace releases functionality…

Assumptions

  • You have a Dynatrace environment available
  • You have a host (or Kubernetes cluster) with a OneAgent already installed

Dynatrace Release Tracking

Using the Dynatrace release functionality is extremely easy. The method differs slightly whether you’re using a VM based deployment for your application or Kubernetes.

Fundamentally though, there are three things you must set:

  1. The product eg. frontend
  2. The stage eg. dev
  3. The version eg. v0.0.1

Kubernetes Method

For Kubernetes, simply add Kubernetes labels to your pods:

app.kubernetes.io/part-of
app.kubernetes.io/version

The product value is taken from the app.kubernetes.io/part-of label. The version is taken from the app.kubernetes.io/version label and the stage is taken from either the namespace or the Dynatrace host group (if set).

That’s all there is to it & you’ll see releases begin to appear when new deployments are pushed.

releases_kubernetes

VM Method

Assuming you have a process on a VM, make the following environment variables available to the process during startup.

export DT_RELEASE_PRODUCT=<PRODUCT-NAME>
export DT_RELEASE_STAGE=<STAGE-NAME>
export DT_RELEASE_VERSION=<VERSION-NUMBER>

For example, to track apache httpd releases we add these variables to /etc/apache2/envvars and restart apache2:

echo 'export DT_RELEASE_VERSION=v0.1' | sudo tee -a /etc/apache2/envvars
echo 'export DT_RELEASE_STAGE=dev' | sudo tee -a /etc/apache2/envvars
echo 'export DT_RELEASE_PRODUCT=frontend' | sudo tee -a /etc/apache2/envvars
sudo service apache2 restart

apache_release

Summary

This is a relatively new feature in Dynatrace but is so easy to do, I now consider it a best practice.

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