Fluent Bit Helm Chart for Kubernetes

Use our multi-arch Helm chart to streamline your Kubernetes monitoring by creating a DaemonSet on your Kubernetes cluster using the Helm package manager.

Prerequisites

• Kubernetes 1.20+ with Beta APIs enabled
• Helm 2.9+ package manager installed

Installation

STEP 1. Create a namespace for the DaemonSet. The following example adopts the namespace coralogix-logger.

kubectl create namespace coralogix-logger

STEP 2. Create a secret key using your Coralogix Send-Your-Data API key.

kubectl create secret generic coralogix-keys \
        -n coralogix-logger \
        --from-literal=PRIVATE_KEY=<Send-Your-Data API Key>

STEP 3. Add the Helm Chart Repo and run an update to fetch it.

helm repo add coralogix-charts-virtual https://cgx.jfrog.io/artifactory/coralogix-charts-virtual &&
helm repo update

STEP 4. Create an override.yaml to override particular settings.

• endpoint: Input the OpenTelemetry endpoint associated with your Coralogix domain.
• dynamic_metadata: You may change the dynamic field from which we extract the application and subsystem name or a static value to overwrite these names.

---
# fluentbit-override.yaml:
dynamic_metadata:
  app_name: kubernetes.namespace_name
  sub_system: kubernetes.container_name
fluent-bit:
  endpoint: <coralogix_endpoint>
  logLevel: error

---
# fluentbit-override.yaml:
static_metadata:
  app_name: MyApplication
  sub_system: MySubsystem
fluent-bit:
  endpoint: <coralogix_endpoint>
  logLevel: error

• If a dynamic variable includes special characters, it must be declared in a different notation, such as the following. Failure to do so will result in LUA exceptions and failure to process properly.

  app_name: kubernetes.labels["k8s-app"]
  app_name: kubernetes.labels["app.kubernetes.io/name"]

STEP 5. Deploy the Helm Chart.

helm upgrade fluent-bit-http coralogix-charts-virtual/fluent-bit-http \
  --install \
  --namespace=coralogix-logger \
  -f fluentbit-override.yaml

Remove the Daemonset

STEP 6. Remove the DaemonSet.

helm uninstall fluent-bit-http \
     -n coralogix-logger

Notes:

• podsecuritypolicy has been deprecated for Kubernetes v1.25+.
• Disable this by adding the following to your override file:

podSecurityPolicy:
  create: false

Additional Resources

Review and make suggestions for improvement for our Helm chart in our Integrations Repository.

Support

Need help?

Our world-class customer success team is available 24/7 to walk you through your setup and answer any questions that may come up.

Feel free to reach out to us via our in-app chat or by sending us an email at [email protected].