The purpose of this repository is to show you, how do we monitor the Java applications deployed on Azure Kubernetes Service, using a feature of Azure Monitor that provides extensible application performance management (APM) and monitoring for live web apps. Developers and DevOps professionals can use Application Insights to:
✅ Automatically detect performance anomalies.
✅ Help diagnose issues by using powerful analytics tools.
✅ See what users actually do with apps.
✅ Help continuously improve app performance and usability.
Since November 2020, using Java SDK is no more needed to instrument java applications and to collect application telemetry. The solution recommended by Microsoft is an auto-instrumentation using 3.0 agent which will track and correlate the application.
The stack used on this tutorial is :
- SpringBoot 2.6.x
- Java 17
- OpenAPI 3.0 — Contract-FIRST (Documenting the API)
- Terraform
- Kubernetes and Helm chart
For this workshop we need some tools to interact with the Azure account az cli, Kubernetes services (kubectl), maybe the tool for IaaC to provision a resources (Terraform)
1- Azure Cli:
Windows: https://docs.microsoft.com/en-us/cli/azure/install-azure-cli-windows?tabs=azure-cli
Linux: https://docs.microsoft.com/fr-fr/cli/azure/install-azure-cli-linux?pivots=apt
Macos: https://docs.microsoft.com/fr-fr/cli/azure/install-azure-cli-macos
Check : $ az -v or az --version
2- kubectl (not kubelet) :
Windows: https://kubernetes.io/fr/docs/tasks/tools/install-kubectl/#installer-kubectl-sur-windows
Linux: https://kubernetes.io/fr/docs/tasks/tools/install-kubectl/#installer-kubectl-sur-linux
Macos: https://kubernetes.io/fr/docs/tasks/tools/install-kubectl/#installer-avec-homebrew-sur-macos
Check : $ kubectl version
3- terraform
All environments: https://www.terraform.io/downloads.html
Check : $ terraform -v or terraform --version
4- You need also helm cli (If you want to deploy directly the charts without using terraform - helm_release resource)