whoami

Whoami

Whoami is a tiny Go webserver that prints os information and HTTP request to output.

DISCLAIMER: This is an unofficial chart not supported by Whoami authors.

TL;DR;

$ helm repo add cowboysysop https://cowboysysop.github.io/charts/
$ helm install my-release cowboysysop/whoami

Introduction

This chart bootstraps a Whoami deployment on a Kubernetes cluster using the Helm package manager.

Prerequisites

• Kubernetes >= 1.19
• Helm >= 3.1

Installing

Install the chart using:

$ helm repo add cowboysysop https://cowboysysop.github.io/charts/
$ helm install my-release cowboysysop/whoami

These commands deploy Whoami on the Kubernetes cluster in the default configuration and with the release name my-release. The deployment configuration can be customized by specifying the customization parameters with the helm install command using the --values or --set arguments. Find more information in the configuration section of this document.

Upgrading

Upgrade the chart deployment using:

$ helm upgrade my-release cowboysysop/whoami

The command upgrades the existing my-release deployment with the most latest release of the chart.

TIP: Use helm repo update to update information on available charts in the chart repositories.

Upgrading to version 4.0.0

Some parameters related to port management have been modified:

• Parameter service.port has been renamed service.ports.http.
• Parameter service.nodePort has been renamed service.nodePorts.http.

Upgrading to version 3.0.0

Some parameters related to image management have been modified:

• Registry prefix in image.repository parameters is now configured in image.registry.
• Parameter imagePullSecrets has been renamed global.imagePullSecrets.

Upgrading to version 2.0.0

The chart is no more compatible with Helm 2.

Refer to the Helm documentation for more information.

Uninstalling

Uninstall the my-release deployment using:

$ helm uninstall my-release

The command deletes the release named my-release and frees all the kubernetes resources associated with the release.

TIP: Specify the --purge argument to the above command to remove the release from the store and make its name free for later use.

Configuration

The following tables lists all the configurable parameters expose by the chart and their default values.

Global parameters

Name	Description	Default
global.imageRegistry	Global Docker image registry	""
global.imagePullSecrets	Global Docker registry secret names as an array	[]

Common parameters

Name	Description	Default
kubeVersion	Override Kubernetes version	""
nameOverride	Partially override whoami.fullname template with a string (will prepend the release name)	nil
fullnameOverride	Fully override whoami.fullname template with a string	nil
commonAnnotations	Annotations to add to all deployed objects	{}
commonLabels	Labels to add to all deployed objects	{}
extraDeploy	Array of extra objects to deploy with the release	[]

Parameters

Name	Description	Default
replicaCount	Number of replicas	1
image.registry	Image registry	docker.io
image.repository	Image repository	traefik/whoami
image.tag	Image tag	v1.9.0
image.digest	Image digest	""
image.pullPolicy	Image pull policy	IfNotPresent
pdb.create	Specifies whether a pod disruption budget should be created	false
pdb.minAvailable	Minimum number/percentage of pods that should remain scheduled	1
pdb.maxUnavailable	Maximum number/percentage of pods that may be made unavailable	nil
serviceAccount.create	Specify whether to create a ServiceAccount	true
serviceAccount.annotations	ServiceAccount annotations	{}
serviceAccount.name	The name of the ServiceAccount to create	Generated using the whoami.fullname template
podAnnotations	Additional pod annotations	{}
podLabels	Additional pod labels	{}
podSecurityContext	Pod security context	{}
priorityClassName	Priority class name	nil
securityContext	Container security context	{}
containerPorts.http	Container port for HTTP	80
livenessProbe.enabled	Enable liveness probe	true
livenessProbe.initialDelaySeconds	Delay before the liveness probe is initiated	0
livenessProbe.periodSeconds	How often to perform the liveness probe	10
livenessProbe.timeoutSeconds	When the liveness probe times out	1
livenessProbe.failureThreshold	Minimum consecutive failures for the liveness probe to be considered failed after having succeeded	3
livenessProbe.successThreshold	Minimum consecutive successes for the liveness probe to be considered successful after having failed	1
readinessProbe.enabled	Enable readiness probe	true
readinessProbe.initialDelaySeconds	Delay before the readiness probe is initiated	0
readinessProbe.periodSeconds	How often to perform the readiness probe	10
readinessProbe.timeoutSeconds	When the readiness probe times out	1
readinessProbe.failureThreshold	Minimum consecutive failures for the readiness probe to be considered failed after having succeeded	3
readinessProbe.successThreshold	Minimum consecutive successes for the readiness probe to be considered successful after having failed	1
service.annotations	Service annotations	{}
service.type	Service type	ClusterIP
service.clusterIP	Static cluster IP address or None for headless service when service type is ClusterIP	nil
service.loadBalancerIP	Static load balancer IP address when service type is LoadBalancer	nil
service.loadBalancerSourceRanges	Source IP address ranges when service type is LoadBalancer	nil
service.externalTrafficPolicy	External traffic routing policy when service type is LoadBalancer or NodePort	Cluster
service.ports.http	Service port for HTTP	80
service.nodePorts.http	Service node port for HTTP when service type is LoadBalancer or NodePort	nil
ingress.enabled	Enable ingress controller resource	false
ingress.ingressClassName	IngressClass that will be be used to implement the Ingress	""
ingress.pathType	Ingress path type	ImplementationSpecific
ingress.annotations	Ingress annotations	{}
ingress.hosts[0].host	Hostname to your Whoami installation	whoami.local
ingress.hosts[0].paths	Paths within the url structure	[/]
ingress.tls[0].secretName	TLS Secret (certificates)	nil
ingress.tls[0].hosts[0]	TLS hosts	nil
resources	CPU/Memory resource requests/limits	{}
nodeSelector	Node labels for pod assignment	{}
tolerations	Tolerations for pod assignment	[]
affinity	Map of node/pod affinities	{}
extraArgs	Additional container arguments	{}
extraEnvVars	Additional container environment variables	[]
extraEnvVarsCM	Name of existing ConfigMap containing additional container environment variables	nil
extraEnvVarsSecret	Name of existing Secret containing additional container environment variables	nil

Tests parameters

Name	Description	Default
tests.image.registry	Image registry	ghcr.io
tests.image.repository	Image repository	cowboysysop/pytest
tests.image.tag	Image tag	1.0.35
tests.image.digest	Image digest	""
tests.image.pullPolicy	Image pull policy	IfNotPresent

Setting parameters

Specify the parameters you which to customize using the --set argument to the helm install command. For instance,

$ helm install my-release \
    --set nameOverride=my-name cowboysysop/whoami

The above command sets the nameOverride to my-name.

Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,

$ helm install my-release \
    --values values.yaml cowboysysop/whoami

TIP: You can use the default values.yaml.