Is it Observable

Episode : Can we observe VCluster?

This repository contains the files utilized during the tutorial presented in the dedicated IsItObservable episode related Vcluster.

This repository showcase the usage of Vcluster with :

• The OpenTelemetry demo
• Dynatrace

We will send all Telemetry data produced by OpenTelemetry Demo to Dynatrace.

Prerequisite

The following tools need to be install on your machine :

• jq
• kubectl
• git
• gcloud ( if you are using GKE)
• Helm

Deployment Steps in GCP

You will first need a Kubernetes cluster with 2 Nodes. You can either deploy on Minikube or K3s or follow the instructions to create GKE cluster:

1.Create a Google Cloud Platform Project

PROJECT_ID="<your-project-id>"
gcloud services enable container.googleapis.com --project ${PROJECT_ID}
gcloud services enable monitoring.googleapis.com \
    cloudtrace.googleapis.com \
    clouddebugger.googleapis.com \
    cloudprofiler.googleapis.com \
    --project ${PROJECT_ID}

2.Create a GKE cluster

ZONE=europe-west3-a
NAME=isitobservable-vcluster
gcloud container clusters create "${NAME}" --zone ${ZONE} --machine-type=e2-standard-8 --num-nodes=2

Getting started

Dynatrace Tenant

1. Dynatrace Tenant - start a trial

If you don't have any Dynatrace tenant , then i suggest to create a trial using the following link : Dynatrace Trial Once you have your Tenant save the Dynatrace tenant url in the variable DT_TENANT_URL (for example : https://dedededfrf.live.dynatrace.com)

DT_TENANT_URL=<YOUR TENANT Host>

2. Create the Dynatrace API Tokens

The dynatrace operator will require to have several tokens:

• Token to deploy and configure the various components
• Token to ingest metrics and Traces

Operator Token

One for the operator having the following scope:

• Create ActiveGate tokens
• Read entities
• Read Settings
• Write Settings
• Access problem and event feed, metrics and topology
• Read configuration
• Write configuration
• Paas integration - installer downloader

Save the value of the token . We will use it later to store in a k8S secret

API_TOKEN=<YOUR TOKEN VALUE>

Ingest data token

Create a Dynatrace token with the following scope:

• Ingest metrics (metrics.ingest)
• Ingest logs (logs.ingest)
• Ingest events (events.ingest)
• Ingest OpenTelemetry
• Read metrics

Save the value of the token . We will use it later to store in a k8S secret

DATA_INGEST_TOKEN=<YOUR TOKEN VALUE>

2.Clone the Github Repository

https://github.com/isItObservable/vcluster
cd vcluster

3. Install Vcluster CLI

curl -L -o vcluster "https://github.com/loft-sh/vcluster/releases/latest/download/vcluster-linux-amd64" && sudo install -c -m 0755 vcluster /usr/local/bin && rm -f vcluster

4. Deploy the environment

cd ..
chmod 777 deployment.sh
./deployment.sh  --clustername "${NAME}" --dturl "${DT_TENANT_URL}" --dtingesttoken "${DATA_INGEST_TOKEN}" --dtoperatortoken "${API_TOKEN}"

5. Create the virtual Cluster

vcluster create oteldemo --expose -f vcluster-manifest/value.yaml

6. Deploy the otel-demo

kubectl create ns otel-demo
kubectl apply -f openTelemetry-demo/deployment.yaml -n otel-demo

7. Create the monitoring service & collector

vcluster disconnect
kubectl apply -f vcluster-manifest/vcluster-monitoring.yaml
kubectl apply -f vcluster-manifest/token.yaml
kubectl apply -f openTelemetry-demo/openTelemetry-manifest_vcluster.yaml