honeycomb

Honeycomb Kubernetes Agent

Honeycomb is built for modern dev teams to see and understand how their production systems are behaving. Our goal is to give engineers the observability they need to eliminate toil and delight their users. This helm chart will install the Honeycomb Kubernetes Agent.

TL;DR;

helm repo add honeycomb https://honeycombio.github.io/helm-charts
helm install honeycomb honeycomb/honeycomb --set honeycomb.apiKey=YOUR_API_KEY

Prerequisites

• Helm 3.0+

Installing the Chart

Using default agent configuration

By default, this chart will collect metrics from all nodes and pods, and watchers configuration to capture logs from the following system components:

• kube-controller-manager
• kube-scheduler

helm repo add honeycomb https://honeycombio.github.io/helm-charts
helm install honeycomb honeycomb/honeycomb --set honeycomb.apiKey=YOUR_API_KEY

Using modified log watchers configuration

The agent watchers can be configured via this chart's watchers property. Create a yaml file with your Honeycomb API key and custom agent configuration similar to the following:

honeycomb:
  apiKey: YOUR_API_KEY
watchers:
  - dataset: kubernetes-logs
    labelSelector: component=kube-controller-manager
    namespace: kube-system
    parser: glog
  - dataset: kubernetes-logs
    labelSelector: component=kube-scheduler
    namespace: kube-system
    parser: glog

Then use this yaml file when installing the chart

helm repo add honeycomb https://honeycombio.github.io/helm-charts
helm install honeycomb honeycomb/honeycomb --values my-values-file.yaml

Capturing events with Heptio Eventrouter

An optional configuration is to capture Kubernetes events using the Heptio Eventrouter component. Configure the Eventrouter to use the stdout sink for logs, and you can capture them with this watchers configuration

watchers:
  - dataset: k8s-eventrouter
    labelSelector: app=eventrouter
    namespace: olly
    parser: json
    processors:
      - drop_field:
          field: old_event

See docs for more information on agent watchers configuration.

Configuration

The values.yaml file contains information about all configuration options for this chart.

The only requirement is a Honeycomb API Key. This can be provided either by setting honeycomb.apiKey or by setting honeycomb.existingSecret to the name of an existing opaque secret resource with your API Key specified in the api-key field.

You can obtain your API Key by going to your Account profile page inside of your Honeycomb instance.

Parameters

The following table lists the configurable parameters of the Honeycomb chart, and their default values.

Parameter	Description	Default
honeycomb.apiKey	Honeycomb API Key	YOUR_API_KEY
honeycomb.apiHost	API URL to sent events to	https://api.honeycomb.io
honeycomb.existingSecret	Name of an existing secret resource to use containing your API Key in the api-key field	nil
watchers	An array of watchers configuration snippets for the log agent (docs). Set this to an empty array [] to disable log collection.	kube-controller-manager, kube-scheduler
verbosity	Agent log level	info
splitLogging	Send all log levels to stdout instead of stderr	false
additionalFields	Additional fields to add to each event	nil
metrics.enabled	Enable and install metrics collection as events into Honeycomb	true
metrics.dataset	Name of Honeycomb dataset for Kubernetes metrics	kubernetes-metrics
metrics.clusterName	Name of Kubernetes cluster to use for metrics	k8s-cluster
metrics.metricGroups	Resource groups (node, pod, container, volume) to collect metrics from	node, pod
metrics.omitLabels	Pod labels to omit from being emitted as fields in metrics	nil
metrics.additionalFields	Additional fields to add to each metric (overrides global setting)	nil
nameOverride	String to partially override honeycomb.fullname template with a string (will append the release name)	nil
fullnameOverride	String to fully override honeycomb.fullname template with a string	nil
imagePullSecrets	Specify docker-registry secret names as an array	[]
image.repository	Honeycomb Agent Image name	honeycombio/honeycomb-kubernetes-agent
image.tag	Honeycomb Image tag (leave blank to use app version)	nil
image.pullPolicy	Honeycomb agent image pull policy	IfNotPresent
terminationGracePeriodSeconds	How many seconds to wait before terminating agent on shutdown	30
podAnnotations	Pod annotations	{}
podSecurityContext	Security context for pod	{}
securityContext	Security context for container	{}
resources	CPU/Memory resource requests/limits	{}
nodeSelector	Node labels for pod assignment	{}
tolerations	Tolerations for pod assignment	[]
affinity	Map of node/pod affinities	{}
priorityClassName	Pod priority for Honeycomb agent	nil
rbac.create	Specify whether RBAC resources should be created and used	true
serviceAccount.create	Specify whether a ServiceAccount should be created	true
serviceAccount.name	The name of the ServiceAccount to create	Generated using the honeycomb.fullname template
serviceAccount.annotations	Annotations to be applied to ServiceAccount	{}

Upgrading

Upgrading from 1.0.x or earlier

The default log collection now includes all standard Kubernetes services. The following Kubernetes components will have logs collection enabled by default: api-server, controller, scheduler, coredns, kube-proxy. You can override this using the watchers parameter.

Upgrading from 0.11.0 or earlier

The agent. prefix for properties has been deprecated. All properties under this space have been moved to the root level. In a future release the agent. prefix will no longer work for any property.

The Metrics functionality has been completely revamped. No more dependencies on external components (heapster). As such the default dataset has changed, and other properties associated with metrics are updated.

The Events functionality has been removed in favor of using the Heptio event router.