Helm Charts

This repository contains helm charts for all CloudHut products. As of now there's only the Kowl helm chart which is documented below.

Installing the helm chart

helm repo add cloudhut https://raw.githubusercontent.com/cloudhut/charts/master/archives
helm repo update
helm install -f values.yaml kowl cloudhut/kowl

Chart configuration

Parameter	Description	Default
replicaCount	Number of Kowl replicas	1
global.imageRegistry	Global Image Registry	(none)
image.registry	Image Registry	quay.io
image.repository	Docker image repo	/cloudhut/kowl
image.pullPolicy	Image pull policy	IfNotPresent
image.tag	Image tag	v1.2.2 (inherited)
imagePullSecrets	Reference to one or more secrets to be used when pulling images	s
nameOverride	Expand the name of the chart	(none)
fullnameOverride	Create a default fully qualified app name	(none)
serviceAccount.create	Create a new service account	true
serviceAccount.annotations	Annotations for new service account	{}
serviceAccount.name	Service Account Name	(none / generated if create is true)
podAnnotations	Annotations to attach on Kowl pod	{}
podSecurityContext	Pod Security Context	{runAsUser: 99, fsGroup: 99}
securityContext	Container Security Context	{runAsNonRoot: true}
service.type	Service type	ClusterIP
service.port	Service port	80
service.type	Annotations to attach to service	{}
ingress.enabled	Whether or not to deploy an ingress	false
ingress.annotations	Ingress annotations	{}
ingress.hosts[0].host	Ingress hostname	chart-example.local
ingress.hosts[0].paths	Path within the url structure	[]
ingress.tls	TLS configuration for the ingress	[]
resources	Resource configuration for deployment	{}
autoscaling.enabled	Whether or not to deploy a horizontal pod autoscaler	false
autoscaling.minReplicas	Minimum number of replicas	1
autoscaling.maxReplicas	Maximum number of replicas	100
autoscaling.targetCPUUtilizationPercentage	Target average utilization for CPU in %	80
autoscaling.targetMemoryUtilizationPercentage	Target average utilization for RAM in %	(none)
nodeSelector	Node selector used in deployment	{}
tolerations	Tolerations for tainted nodes	[]
affinity	Pod (anti)affinities	{}
extraVolumes	Add additional volumes, e. g. for tls keys	""
extraVolumeMounts	Add additional volumes mounts, e. g. for tls keys	""
extraEnv	Additional environment variables for kowl	""
extraEnvFrom	Additional environment variables for kowl mapped from Secret or ConfigMap	""
kowl.config	Kowl config content	{}
kowl.roles	Kowl roles config content (business)	(none)
kowl.roleBindings	Kowl rolebindings config content (business)	(none)
secret.existingSecret	Secret name of an existing secret (see notes below)	(none)
secret.kafka.saslPassword	Kafka sasl password value	(none)
secret.kafka.tlsCa	Kafka TLS ca file	(none)
secret.kafka.tlsCert	Kafka TLS cert file	(none)
secret.kafka.tlsKey	Kafka TLS key	(none)
secret.kafka.tlsPassphrase	Kafka TLS passphrase	(none)
secret.cloudhut.licenseToken	License token for Kowl business (business)	(none)
secret.keyname.cloudhut-license-token	Secret key name for the cloudhut license token	cloudhut-license-token
secret.keyname.kafka-tls-passphrase	Secret key name for the TLS passphrase	kafka-tls-passphrase
secret.keyname.kafka-sasl-password	Secret key name for the SASL password	kafka-sasl-password
login.google.clientSecret	Google OAuth client secret (business)	(none)
login.github.clientSecret	GitHub OAuth client secret (business)	(none)
login.github.personalAccessToken	GitHub personal access token (business)	(none)

Further documentation can be found in the examples.

Usage of the tpl Function

The tpl function allows us to pass string values from values.yaml through the templating engine. It is used for the following values:

• extraEnv
• extraEnvFrom
• extraVolumes
• extraVolumeMounts

Kowl Config / Mounted secrets

With this chart you can specify the whole YAML config for Kowl (Business). This includes path to files which may be mounted by this chart. This is the list of static paths which you may need to specify in the config in case you use them:

Type	Path
Config	/etc/kowl/configs/config.yaml
Roles	/etc/kowl/configs/roles.yaml
Role Bindings	/etc/kowl/configs/role-bindings.yaml
Kafka TLS CA	/etc/kowl/secrets/kafka-tls-ca
Kafka TLS Cert	/etc/kowl/secrets/kafka-tls-cert
Kafka TLS Key	/etc/kowl/secrets/kafka-tls-key
Google Groups Service Account	/etc/kowl/secrets/login-google-groups-service-account.json

Using an existing secret

If you prefer to use an existing secret rather than creating a new one with this chart you must specify all keys. Please take a look at the sample manifest.