helm-chart-boilerplate

Generic Helm Chart

A generisied Helm chart for any use case following best-practises for security, scaling and zero-downtime updates.

Prerequisities:

• helm >= 3

ToDo:

• Support for DaemonSet resource type

Usage

cd helm-chart-boilerplate # cd to the root 
helm upgrade --install myrelease ./charts/common --namespace app --create-namespace 

Parameters

See values.yaml for examples

Key	Type	Default	Description
affinity	object	{}
autoscaling.enabled	bool	false
autoscaling.maxReplicas	int	1
autoscaling.minReplicas	int	1
autoscaling.targetCPUUtilizationPercentage	int	80
configMap.enabled	bool	false
configMap.envFrom	bool	false
deploymentLabels	object	{}
env	list	[]
extraVolumeMounts	list	[]
extraVolumes	list	[]
fullnameOverride	string	""
hook.enabled	bool	false
hook.image.pullPolicy	string	"Always"
hook.image.repository	string	"mcr.microsoft.com/mssql-tools"
hook.image.tag	string	"1.0.0"
image.pullPolicy	string	"Always"
image.repository	string	""
image.tag	string	"latest"
imagePullSecrets[0].name	string	"regcred"
initContainers.args	list	[]
initContainers.command	list	[]
initContainers.enabled	bool	false
initContainers.extraVolumeMounts	list	[]
initContainers.extraVolumes	list	[]
initContainers.image.imagePullPolicy	string	nil
initContainers.image.repository	string	nil
initContainers.image.tag	string	nil
livenessProbe	object	{}
nameOverride	string	""
nodeSelector.”beta.kubernetes.io/arch”	string	"amd64"
nodeSelector.”beta.kubernetes.io/os”	string	"linux"
orleans.enabled	bool	false
persistence.accessMode	string	"ReadWriteMany"
persistence.enabled	bool	false
persistence.size	string	"10Gi"
persistence.storageClassName	string	"default"
podAnnotations	object	{}
podSecurityContext	object	{}
rawYaml.content	string	"kind: RoleBinding\napiVersion: rbac.authorization.k8s.io/v1\nmetadata:\n name: myrelease-app-pod-reader-binding1\n namespace: default\nsubjects:\n- kind: ServiceAccount\n name: myrelease-app\n apiGroup: ''\nroleRef:\n kind: Role\n name: myrelease-app-pod-reader\n apiGroup: ''\n"
rawYaml.enabled	bool	false
readinessProbe	object	{}
redisSidecar.enabled	bool	false
redisSidecar.image	string	"redis"
redisSidecar.livenessInterval	int	30
redisSidecar.pullPolicy	string	"Always"
redisSidecar.targetPort	int	6379
replicaCount	int	1
resources	object	{}
securityContext	object	{}
serviceAccount.annotations	object	{}
serviceAccount.enabled	bool	false
serviceAccount.name	string	""
services[0].containerPort	int	80
services[0].name	string	"http"
services[0].targetPort	int	80
services[0].type	string	"ClusterIP"
startupProbe	object	{}
tolerations	list	[]

---

Documentation

See comments in values.yaml for full list of features and some examples See examples in README.md

Uninstall

helm delete -n app myrelease