Deploying with Helm directly

Prerequisites

• You must have a Kubernetes cluster

• Kubernetes version >= 1.22
• Currently supports x86-64, amd64 and arm64 architectures
• Helm version >= 3.8
• You must have kubectl access to your cluster

• The following table describes the hardware requirements that are needed to install SigNoz on Kubernetes:

  Component	Minimal Requirements	Recommended
  Memory	8 GB	16 GB
  CPU	4 cores	8 cores
  Storage	30 GB	80 GB

• Suggestion: In case you do not have any other storage class which supports volume expansion, you can patch default storage class definition by setting allowVolumeExpansion to True (this enables PVC resize).

  DEFAULT_STORAGE_CLASS=$(kubectl get storageclass -o=jsonpath='{.items[?(@.metadata.annotations.storageclass\.kubernetes\.io/is-default-class=="true")].metadata.name}')
  
  kubectl patch storageclass "$DEFAULT_STORAGE_CLASS" -p '{"allowVolumeExpansion": true}'
  

Install SigNoz

Helm Installation

The SigNoz Helm chart will install the following components into your Kubernetes cluster:

• SigNoz
• SigNoz Collector
• Clickhouse
• Zookeeper

1. Find a storage class to use in your cluster:

   kubectl get storageclass

2. Create a values.yaml file that will contain the configuration for the chart. Here is a minimal example to get started:

   global:
     storageClass: <storage-class>
   
   clickhouse:
     installCustomStorageClass: true

   You can find an exhaustive list of the parameters here.

3. Install SigNoz:

   helm repo add signoz https://charts.signoz.io
   helm repo update
   helm install signoz signoz/signoz \
      --namespace <namespace> --create-namespace \
      --wait \
      --timeout 1h \
      -f values.yaml

Test the installation

1. In another terminal, port-forward signoz on its http port. (By default, signoz exposes its http server on port 8080.)

   kubectl port-forward -n <namespace> svc/signoz 8080:8080

2. Run the following command to check the health of signoz:

   curl -X GET http://localhost:8080/api/v1/health

3. If the installation is successful, you should see the following output:

   {"status":"ok"}

(Optional) Install OpenTelemetry Demo

The OpenTelemetry Demo is a microservice-based distributed system intended to illustrate the implementation of OpenTelemetry in a near real-world environment. See more details at OpenTelemetry Demo.

1. Get the address of the SigNoz collector:

   kubectl get -n <namespace> svc/signoz-otel-collector

   This value will be used in the next step to configure the OpenTelemetry Demo to send data to the SigNoz collector.

2. Create a values.yaml file that will contain the configuration for the chart and send it to your SigNoz installation:

   default:
     env:
       - name: OTEL_SERVICE_NAME
         valueFrom:
           fieldRef:
             apiVersion: v1
             fieldPath: "metadata.labels['app.kubernetes.io/component']"
       - name: OTEL_EXPORTER_OTLP_METRICS_TEMPORALITY_PREFERENCE
         value: cumulative
       - name: OTEL_RESOURCE_ATTRIBUTES
         value: 'service.name=$(OTEL_SERVICE_NAME),service.namespace=opentelemetry-demo,service.version={{ .Chart.appVersion }}'
       - name: OTEL_COLLECTOR_NAME
         value: signoz-otel-collector.<namespace>.svc.cluster.local

   Note: The OTEL_COLLECTOR_NAME is the address obtained in the previous step.

3. Install OpenTelemetry Demo:

   helm repo add open-telemetry https://open-telemetry.github.io/opentelemetry-helm-charts
   helm repo update
   helm install otel-demo open-telemetry/opentelemetry-demo -f values.yaml

   More details on the installation can be found here.

Next Steps

• Collect Telemetry from your K8s Clusters
• Use OpenTelemetry Operator for automatic instrumentation