How to Install jenkins using Helm chart on instance

How to install Jenkins using Helm Chart on instance


Prerequisites

To follow along with this post you need to use a Kubernetes cluster and Helm chart.

All major cloud provides offer hosted Kubernetes clusters:

1. AWS: EKS

2. Azure: AKS

3. Google Cloud: GKE

you must also have the Helm Client installed. The Helm documentation provides install instructions.

[Helm documentation: https://helm.sh/docs/intro/install/ ]

we also have a way to deploy Jenkins on your local machine, but we will not explain it on this post. 

Adding the Jenkins Chart repository

$ helm repo add jenkins https://charts.jenkins.io

$ helm repo update

$ helm repo list


Deploying a simple Jenkins instance

To deploy a jenkins instance with the default settings, run this command:

$ helm upgrade --install jenkins(jenkins_name) jenkins/jenkins 


its the easiest way to deploy jenkins with default values.


but I will introduce how to deploy Jenkins to LoadBalancer type.


I will share the Helm-Jenkins yaml file:

--------------------------------

## @section Global parameters

## Global Docker image parameters

## Please, note that this will override the image parameters, including dependencies, configured to use the global value

## Current available global Docker image parameters: imageRegistry, imagePullSecrets and storageClass


## @param global.imageRegistry Global Docker image registry

## @param global.imagePullSecrets Global Docker registry secret names as an array

## @param global.storageClass Global StorageClass for Persistent Volume(s)

##

global:

  imageRegistry: ""

  ## E.g.

  ## imagePullSecrets:

  ##   - myRegistryKeySecretName

  ##

  imagePullSecrets: []

  storageClass: ""


## @section Common parameters


## @param kubeVersion Override Kubernetes version

##

kubeVersion: ""

## @param nameOverride String to partially override common.names.fullname

##

nameOverride: ""

## @param fullnameOverride String to fully override common.names.fullname

##

fullnameOverride: ""

## @param commonLabels Labels to add to all deployed objects

##

commonLabels: {}

## @param commonAnnotations Annotations to add to all deployed objects

##

commonAnnotations: {}

## @param clusterDomain Kubernetes cluster domain name

##

clusterDomain: cluster.local

## @param extraDeploy Array of extra objects to deploy with the release

##

extraDeploy: []

## Enable diagnostic mode in the deployment

##

diagnosticMode:

  ## @param diagnosticMode.enabled Enable diagnostic mode (all probes will be disabled and the command will be overridden)

  ##

  enabled: false

  ## @param diagnosticMode.command Command to override all containers in the deployment

  ##

  command:

    - sleep

  ## @param diagnosticMode.args Args to override all containers in the deployment

  ##

  args:

    - infinity


## @section Jenkins Image parameters


## Bitnami Jenkins image

## ref: https://hub.docker.com/r/bitnami/jenkins/tags/

## @param image.registry Jenkins image registry

## @param image.repository Jenkins image repository

## @param image.tag Jenkins image tag (immutable tags are recommended)

## @param image.pullPolicy Jenkins image pull policy

## @param image.pullSecrets Jenkins image pull secrets

## @param image.debug Enable image debug mode

##

image:

  registry: docker.io

  repository: bitnami/jenkins

  tag: 2.319.3-debian-10-r14

  ## Specify a imagePullPolicy

  ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'

  ## ref: https://kubernetes.io/docs/user-guide/images/#pre-pulling-images

  ##

  pullPolicy: IfNotPresent

  ## Optionally specify an array of imagePullSecrets.

  ## Secrets must be manually created in the namespace.

  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/

  ## e.g:

  ## pullSecrets:

  ##   - myRegistryKeySecretName

  ##

  pullSecrets: []

  ## Enable debug mode

  ##

  debug: false


## @section Jenkins Configuration parameters

## Jenkins settings based on environment variables

## ref: https://github.com/bitnami/bitnami-docker-jenkins#configuration


## @param jenkinsUser Jenkins username

##

jenkinsUser: user (you can use Username whatever you want)

## @param jenkinsPassword Jenkins user password

## Defaults to a random 10-character alphanumeric string if not set

##

jenkinsPassword: "(you can use Password whatever you want but it must be longer than 6  letters) "

## @param jenkinsHost Jenkins host to create application URLs

##

jenkinsHost: ""

## @param jenkinsHome Jenkins home directory

##

jenkinsHome: /bitnami/jenkins/home

## @param javaOpts Custom JVM parameters

##

javaOpts: []

## @param disableInitialization Skip performing the initial bootstrapping for Jenkins

##

disableInitialization: "no"

## @param command Override default container command (useful when using custom images)

##

command: []

## @param args Override default container args (useful when using custom images)

##

args: []

## @param extraEnvVars Array with extra environment variables to add to the Jenkins container

## e.g:

## extraEnvVars:

##   - name: FOO

##     value: "bar"

##

extraEnvVars: []

## @param extraEnvVarsCM Name of existing ConfigMap containing extra env vars

##

extraEnvVarsCM: ""

## @param extraEnvVarsSecret Name of existing Secret containing extra env vars

##

extraEnvVarsSecret: ""


## @section Jenkins deployment parameters


## @param updateStrategy.type Jenkins deployment strategy type

## ref: https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#strategy

## NOTE: Set it to `Recreate` if you use a PV that cannot be mounted on multiple pods

## e.g:

## updateStrategy:

##  type: RollingUpdate

##  rollingUpdate:

##    maxSurge: 25%

##    maxUnavailable: 25%

##

updateStrategy:

  type: RollingUpdate


## @param serviceAccountName Jenkins pod service account name

##

serviceAccountName: "default"


## @param priorityClassName Jenkins pod priority class name

##

priorityClassName: ""

## @param schedulerName Name of the k8s scheduler (other than default)

## ref: https://kubernetes.io/docs/tasks/administer-cluster/configure-multiple-schedulers/

##

schedulerName: ""

## @param topologySpreadConstraints Topology Spread Constraints for pod assignment

## https://kubernetes.io/docs/concepts/workloads/pods/pod-topology-spread-constraints/

## The value is evaluated as a template

##

topologySpreadConstraints: []

## @param hostAliases Jenkins pod host aliases

## https://kubernetes.io/docs/concepts/services-networking/add-entries-to-pod-etc-hosts-with-host-aliases/

##

hostAliases: []

## @param extraVolumes Optionally specify extra list of additional volumes for Jenkins pods

##

extraVolumes: []

## @param extraVolumeMounts Optionally specify extra list of additional volumeMounts for Jenkins container(s)

##

extraVolumeMounts: []

## @param sidecars Add additional sidecar containers to the Jenkins pod

## e.g:

## sidecars:

##   - name: your-image-name

##     image: your-image

##     imagePullPolicy: Always

##     ports:

##       - name: portname

##         containerPort: 1234

##

sidecars: []

## @param initContainers Add additional init containers to the Jenkins pods

## ref: https://kubernetes.io/docs/concepts/workloads/pods/init-containers/

## e.g:

## initContainers:

##  - name: your-image-name

##    image: your-image

##    imagePullPolicy: Always

##    ports:

##      - name: portname

##        containerPort: 1234

##

initContainers: []

## @param lifecycleHooks Add lifecycle hooks to the Jenkins deployment

##

lifecycleHooks: {}

## @param podLabels Extra labels for Jenkins pods

## ref: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/

##

podLabels: {}

## @param podAnnotations Annotations for Jenkins pods

## ref: https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/

##

podAnnotations: {}

## @param podAffinityPreset Pod affinity preset. Ignored if `affinity` is set. Allowed values: `soft` or `hard`

## ref: https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#inter-pod-affinity-and-anti-affinity

##

podAffinityPreset: ""

## @param podAntiAffinityPreset Pod anti-affinity preset. Ignored if `affinity` is set. Allowed values: `soft` or `hard`

## Ref: https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#inter-pod-affinity-and-anti-affinity

##

podAntiAffinityPreset: soft

## Node affinity preset

## Ref: https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#node-affinity

##

nodeAffinityPreset:

  ## @param nodeAffinityPreset.type Node affinity preset type. Ignored if `affinity` is set. Allowed values: `soft` or `hard`

  ##

  type: ""

  ## @param nodeAffinityPreset.key Node label key to match. Ignored if `affinity` is set

  ##

  key: ""

  ## @param nodeAffinityPreset.values Node label values to match. Ignored if `affinity` is set

  ## E.g.

  ## values:

  ##   - e2e-az1

  ##   - e2e-az2

  ##

  values: []

## @param affinity Affinity for pod assignment

## Ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity

## NOTE: podAffinityPreset, podAntiAffinityPreset, and nodeAffinityPreset will be ignored when it's set

##

affinity: {}

## @param nodeSelector Node labels for pod assignment

## ref: https://kubernetes.io/docs/user-guide/node-selection/

##

nodeSelector: {}

## @param tolerations Tolerations for pod assignment

## ref: https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/

##

tolerations: {}

## Jenkins containers' resource requests and limits

## ref: https://kubernetes.io/docs/user-guide/compute-resources/

## @param resources.limits The resources limits for the Jenkins container

## @param resources.requests [object] The requested resources for the Jenkins container

##

resources:

  limits: {}

  requests:

    memory: 512Mi

    cpu: 300m

## Container ports

## @param containerPorts.http Jenkins HTTP container port

## @param containerPorts.https Jenkins HTTPS container port

##

containerPorts:

  http: 8080

  https: 8443

## Configure Pods Security Context

## ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-pod

## @param podSecurityContext.enabled Enabled Jenkins pods' Security Context

## @param podSecurityContext.fsGroup Set Jenkins pod's Security Context fsGroup

##

podSecurityContext:

  enabled: true

  fsGroup: 1001

## Configure Container Security Context (only main container)

## ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-container

## @param containerSecurityContext.enabled Enabled Jenkins containers' Security Context

## @param containerSecurityContext.runAsUser Set Jenkins container's Security Context runAsUser

## @param containerSecurityContext.runAsNonRoot Set Jenkins container's Security Context runAsNonRoot

##

containerSecurityContext:

  enabled: true

  runAsUser: 1001

  runAsNonRoot: true

## Configure extra options for Jenkins containers' startup, liveness and readiness probes

## ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/#configure-probes

## @param startupProbe.enabled Enable startupProbe

## @param startupProbe.initialDelaySeconds Initial delay seconds for startupProbe

## @param startupProbe.periodSeconds Period seconds for startupProbe

## @param startupProbe.timeoutSeconds Timeout seconds for startupProbe

## @param startupProbe.failureThreshold Failure threshold for startupProbe

## @param startupProbe.successThreshold Success threshold for startupProbe

##

startupProbe:

  enabled: false

  initialDelaySeconds: 180

  periodSeconds: 10

  timeoutSeconds: 5

  successThreshold: 1

  failureThreshold: 6

## @param livenessProbe.enabled Enable livenessProbe

## @param livenessProbe.initialDelaySeconds Initial delay seconds for livenessProbe

## @param livenessProbe.periodSeconds Period seconds for livenessProbe

## @param livenessProbe.timeoutSeconds Timeout seconds for livenessProbe

## @param livenessProbe.failureThreshold Failure threshold for livenessProbe

## @param livenessProbe.successThreshold Success threshold for livenessProbe

##

livenessProbe:

  enabled: true

  initialDelaySeconds: 180

  periodSeconds: 10

  timeoutSeconds: 5

  successThreshold: 1

  failureThreshold: 6

## @param readinessProbe.enabled Enable readinessProbe

## @param readinessProbe.initialDelaySeconds Initial delay seconds for readinessProbe

## @param readinessProbe.periodSeconds Period seconds for readinessProbe

## @param readinessProbe.timeoutSeconds Timeout seconds for readinessProbe

## @param readinessProbe.failureThreshold Failure threshold for readinessProbe

## @param readinessProbe.successThreshold Success threshold for readinessProbe

##

readinessProbe:

  enabled: true

  initialDelaySeconds: 30

  periodSeconds: 5

  timeoutSeconds: 3

  successThreshold: 1

  failureThreshold: 3

## @param customStartupProbe Custom startupProbe that overrides the default one

##

customStartupProbe: {}

## @param customLivenessProbe Custom livenessProbe that overrides the default one

##

customLivenessProbe: {}

## @param customReadinessProbe Custom readinessProbe that overrides the default one

#

customReadinessProbe: {}


## @section Traffic Exposure Parameters


## Jenkins service parameters

##

service:

  ## @param service.type Jenkins service type

  ##

  type: LoadBalancer

# we have four of serviice.type to communication with jenkins server type:

# Cluster IP, Node IP, Load Balancer, External Name


  annotations:

    service.beta.kubernetes.io/aws-load-balancer-type: "nlb"

# AWS LoadBalancer type 

    service.beta.kubernetes.io/aws-load-balancer-internal: "true"

    service.beta.kubernetes.io/aws-load-balancer-name: "nlb-internal-jenkins"

# fill the name out what you want to use 

    service.beta.kubernetes.io/aws-load-balancer-subnets: "subnet-(must be support from AWS/GCP/Azure), subnet-(must be support from AWS/GCP/Azure)"

# you must write your own subnet address you are using on aws-load-balancer-subnets part. In my case, I have two EKS node cluster. this part should be different each other how many cluster(s)/node(s) you are using and what cloud system you are using. 

    https: 443

  ## Node ports to expose

  ## @param service.nodePorts.http Node port for HTTP

  ## @param service.nodePorts.https Node port for HTTPS

  ## NOTE: choose port between <30000-32767>

  ##

  nodePorts:

    http: ""

    https: ""

  ## @param service.clusterIP Jenkins service Cluster IP

  ## e.g.:

  ## clusterIP: None

  ##

  clusterIP: ""

  ## @param service.loadBalancerIP Jenkins service Load Balancer IP

  ## ref: https://kubernetes.io/docs/concepts/services-networking/service/#type-loadbalancer

  ##

  loadBalancerIP: ""

  ## @param service.loadBalancerSourceRanges Jenkins service Load Balancer sources

  ## ref: https://kubernetes.io/docs/tasks/access-application-cluster/configure-cloud-provider-firewall/#restrict-access-for-loadbalancer-service

  ## e.g:

  ## loadBalancerSourceRanges:

  ##   - 10.10.10.0/24

  ##

  loadBalancerSourceRanges: []

  ## @param service.externalTrafficPolicy Jenkins service external traffic policy

  ## ref https://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer/#preserving-the-client-source-ip

  ##

  externalTrafficPolicy: Cluster

  ## @param service.annotations Additional custom annotations for Jenkins service

  ##

  annotations: {}

## Configure the ingress resource that allows you to access the Jenkins installation

## ref: https://kubernetes.io/docs/user-guide/ingress/

##

ingress:

  ## @param ingress.enabled Enable ingress record generation for Jenkins

  ##

  enabled: false

  ## @param ingress.pathType Ingress path type

  ##

  pathType: ImplementationSpecific

  ## @param ingress.apiVersion Force Ingress API version (automatically detected if not set)

  ##

  apiVersion: ""

  ## @param ingress.hostname Default host for the ingress record

  ##

  hostname: jenkins.local

  ## @param ingress.path Default path for the ingress record

  ## NOTE: You may need to set this to '/*' in order to use this with ALB ingress controllers

  ##

  path: /

  ## @param ingress.annotations Additional annotations for the Ingress resource. To enable certificate autogeneration, place here your cert-manager annotations.

  ## For a full list of possible ingress annotations, please see

  ## ref: https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/nginx-configuration/annotations.md

  ## Use this parameter to set the required annotations for cert-manager, see

  ## ref: https://cert-manager.io/docs/usage/ingress/#supported-annotations

  ##

  ## e.g:

  ## annotations:

  ##   kubernetes.io/ingress.class: nginx

  ##   cert-manager.io/cluster-issuer: cluster-issuer-name

  ##

  annotations: {}

  ## @param ingress.tls Enable TLS configuration for the host defined at `ingress.hostname` parameter

  ## TLS certificates will be retrieved from a TLS secret with name: `{{- printf "%s-tls" .Values.ingress.hostname }}`

  ## You can:

  ##   - Use the `ingress.secrets` parameter to create this TLS secret

  ##   - Relay on cert-manager to create it by setting the corresponding annotations

  ##   - Relay on Helm to create self-signed certificates by setting `ingress.selfSigned=true`

  ##

  tls: false

  ## DEPRECATED: Use ingress.annotations instead of ingress.certManager

  ## certManager: false

  ##


  ## @param ingress.selfSigned Create a TLS secret for this ingress record using self-signed certificates generated by Helm

  ##

  selfSigned: false

  ## @param ingress.extraHosts An array with additional hostname(s) to be covered with the ingress record

  ## e.g:

  ## extraHosts:

  ##   - name: jenkins.local

  ##     path: /

  ##

  extraHosts: []

  ## @param ingress.extraPaths An array with additional arbitrary paths that may need to be added to the ingress under the main host

  ## e.g:

  ## extraPaths:

  ## - path: /*

  ##   backend:

  ##     serviceName: ssl-redirect

  ##     servicePort: use-annotation

  ##

  extraPaths: []

  ## @param ingress.extraTls TLS configuration for additional hostname(s) to be covered with this ingress record

  ## ref: https://kubernetes.io/docs/concepts/services-networking/ingress/#tls

  ## e.g:

  ## extraTls:

  ## - hosts:

  ##     - jenkins.local

  ##   secretName: jenkins.local-tls

  ##

  extraTls: []

  ## @param ingress.secrets Custom TLS certificates as secrets

  ## NOTE: 'key' and 'certificate' are expected in PEM format

  ## NOTE: 'name' should line up with a 'secretName' set further up

  ## If it is not set and you're using cert-manager, this is unneeded, as it will create a secret for you with valid certificates

  ## If it is not set and you're NOT using cert-manager either, self-signed certificates will be created valid for 365 days

  ## It is also possible to create and manage the certificates outside of this helm chart

  ## Please see README.md for more information

  ## e.g:

  ## secrets:

  ##   - name: jenkins.local-tls

  ##     key: |-

  ##       -----BEGIN RSA PRIVATE KEY-----

  ##       ...

  ##       -----END RSA PRIVATE KEY-----

  ##     certificate: |-

  ##       -----BEGIN CERTIFICATE-----

  ##       ...

  ##       -----END CERTIFICATE-----

  ##

  secrets: []

  ## @param ingress.ingressClassName IngressClass that will be be used to implement the Ingress (Kubernetes 1.18+)

  ## This is supported in Kubernetes 1.18+ and required if you have more than one IngressClass marked as the default for your cluster .

  ## ref: https://kubernetes.io/blog/2020/04/02/improvements-to-the-ingress-api-in-kubernetes-1.18/

  ##

  ingressClassName: ""


## @section Persistence Parameters


## Persistence Parameters

## ref: https://kubernetes.io/docs/user-guide/persistent-volumes/

##

persistence:

  ## @param persistence.enabled Enable persistence using Persistent Volume Claims

  ##

  enabled: true

  ## @param persistence.storageClass Persistent Volume storage class

  ## If defined, storageClassName: <storageClass>

  ## If set to "-", storageClassName: "", which disables dynamic provisioning

  ## If undefined (the default) or set to null, no storageClassName spec is set, choosing the default provisioner

  ##

  storageClass: ""

  ## @param persistence.existingClaim Use a existing PVC which must be created manually before bound

  ##

  existingClaim: ""

  ## @param persistence.annotations Additional custom annotations for the PVC

  ##

  annotations: {}

  ## @param persistence.accessModes [array] Persistent Volume access modes

  ##

  accessModes:

    - ReadWriteOnce

  ## @param persistence.size Persistent Volume size

  ##

  size: 8Gi

  ## @param persistence.selector Selector to match an existing Persistent Volume for Ingester's data PVC

  ## If set, the PVC can't have a PV dynamically provisioned for it

  ## E.g.

  ## selector:

  ##   matchLabels:

  ##     app: my-app

  ##

  selector: {}

## 'volumePermissions' init container parameters

## Changes the owner and group of the persistent volume mount point to runAsUser:fsGroup values

##   based on the podSecurityContext/containerSecurityContext parameters

##

volumePermissions:

  ## @param volumePermissions.enabled Enable init container that changes the owner/group of the PV mount point to `runAsUser:fsGroup`

  ##

  enabled: false

  ## Bitnami Shell image

  ## ref: https://hub.docker.com/r/bitnami/bitnami-shell/tags/

  ## @param volumePermissions.image.registry Bitnami Shell image registry

  ## @param volumePermissions.image.repository Bitnami Shell image repository

  ## @param volumePermissions.image.tag Bitnami Shell image tag (immutable tags are recommended)

  ## @param volumePermissions.image.pullPolicy Bitnami Shell image pull policy

  ## @param volumePermissions.image.pullSecrets Bitnami Shell image pull secrets

  ##

  image:

    registry: docker.io

    repository: bitnami/bitnami-shell

    tag: 10-debian-10-r353

    pullPolicy: IfNotPresent

    ## Optionally specify an array of imagePullSecrets.

    ## Secrets must be manually created in the namespace.

    ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/

    ## e.g:

    ## pullSecrets:

    ##   - myRegistryKeySecretName

    ##

    pullSecrets: []

  ## Init container's resource requests and limits

  ## ref: https://kubernetes.io/docs/user-guide/compute-resources/

  ## @param volumePermissions.resources.limits The resources limits for the init container

  ## @param volumePermissions.resources.requests The requested resources for the init container

  ##

  resources:

    limits: {}

    requests: {}

  ## Init container Container Security Context

  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-container

  ## @param volumePermissions.securityContext.runAsUser Set init container's Security Context runAsUser

  ## NOTE: when runAsUser is set to special value "auto", init container will try to chown the

  ##   data folder to auto-determined user&group, using commands: `id -u`:`id -G | cut -d" " -f2`

  ##   "auto" is especially useful for OpenShift which has scc with dynamic user ids (and 0 is not allowed)

  ##

  securityContext:

    runAsUser: 0


## @section Metrics Parameters


metrics:

  ## @param metrics.enabled Start a sidecar prometheus exporter to expose Jenkins metrics

  ##

  enabled: false

  ## Bitnami Jenkins Exporter image

  ## ref: https://hub.docker.com/r/bitnami/jenkins-exporter/tags/

  ## @param metrics.image.registry Jenkins Exporter image registry

  ## @param metrics.image.repository Jenkins Exporter image repository

  ## @param metrics.image.tag Jenkins Jenkins Exporter image tag (immutable tags are recommended)

  ## @param metrics.image.pullPolicy Jenkins Exporter image pull policy

  ## @param metrics.image.pullSecrets Jenkins Exporter image pull secrets

  ##

  image:

    registry: docker.io

    repository: bitnami/jenkins-exporter

    tag: 0.20171225.0-debian-10-r720

    pullPolicy: IfNotPresent

    ## Optionally specify an array of imagePullSecrets.

    ## Secrets must be manually created in the namespace.

    ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/

    ## e.g:

    ## pullSecrets:

    ##   - myRegistryKeySecretName

    ##

    pullSecrets: []

  ## Configure Container Security Context

  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/#set-the-security-context-for-a-pod

  ## @param metrics.containerSecurityContext.enabled Enabled Jenkins exporter containers' Security Context

  ## @param metrics.containerSecurityContext.runAsUser Set Jenkins exporter containers' Security Context runAsUser

  ##

  containerSecurityContext:

    enabled: true

    runAsUser: 1001

  ## Jenkins exporter resource requests and limits

  ## ref: https://kubernetes.io/docs/user-guide/compute-resources/

  ## @param metrics.resources.limits The resources limits for the Jenkins exporter container

  ## @param metrics.resources.requests The requested resources for the Jenkins exporter container

  ##

  resources:

    limits: {}

    requests: {}

  ## Jenkins exporter service parameters

  ##

  service:

    ## @param metrics.service.type Jenkins exporter service type

    ##

    type: ClusterIP

    ## @param metrics.service.port Jenkins exporter service port

    ##

    port: 9122

    ## @param metrics.service.nodePort Node port for exporter

    ##

    nodePort: ""

    ## @param metrics.service.externalTrafficPolicy Jenkins exporter service external traffic policy

    ## ref: https://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer/#preserving-the-client-source-ip

    ##

    externalTrafficPolicy: Cluster

    ## @param metrics.service.loadBalancerIP Jenkins exporter service Load Balancer IP

    ## ref: https://kubernetes.io/docs/concepts/services-networking/service/#internal-load-balancer

    ##

    loadBalancerIP: ""

    ## @param metrics.service.loadBalancerSourceRanges Jenkins exporter service Load Balancer sources

    ## https://kubernetes.io/docs/tasks/access-application-cluster/configure-cloud-provider-firewall/#restrict-access-for-loadbalancer-service

    ## e.g.

    ## loadBalancerSourceRanges:

    ##   - 10.10.10.0/24

    ##

    loadBalancerSourceRanges: []

    ## @param metrics.service.annotations [object] Additional custom annotations for Jenkins exporter service

    ##

    annotations:

      prometheus.io/scrape: "true"

      prometheus.io/port: "{{ .Values.metrics.service.ports.http }}"

  ## Prometheus Service Monitor

  ## ref: https://github.com/coreos/prometheus-operator

  ##      https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#endpoint

  ##

  serviceMonitor:

    ## @param metrics.serviceMonitor.enabled Create ServiceMonitor resource(s) for scraping metrics using PrometheusOperator

    ##

    enabled: false

    ## @param metrics.serviceMonitor.namespace The namespace in which the ServiceMonitor will be created

    ##

    namespace: ""

    ## @param metrics.serviceMonitor.interval The interval at which metrics should be scraped

    ##

    interval: 30s

    ## @param metrics.serviceMonitor.scrapeTimeout The timeout after which the scrape is ended

    ##

    scrapeTimeout: ""

    ## @param metrics.serviceMonitor.jobLabel The name of the label on the target service to use as the job name in prometheus.

    ##

    jobLabel: ""

    ## @param metrics.serviceMonitor.relabelings RelabelConfigs to apply to samples before scraping

    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#relabelconfig

    ##

    relabelings: []

    ## @param metrics.serviceMonitor.metricRelabelings MetricRelabelConfigs to apply to samples before ingestion

    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#relabelconfig

    ##

    metricRelabelings: []

    ## @param metrics.serviceMonitor.selector ServiceMonitor selector labels

    ## ref: https://github.com/bitnami/charts/tree/master/bitnami/prometheus-operator#prometheus-configuration

    ##

    ## selector:

    ##   prometheus: my-prometheus

    ##

    selector: {}

    ## @param metrics.serviceMonitor.honorLabels Specify honorLabels parameter to add the scrape endpoint

    ##

    honorLabels: false

    ## @param metrics.serviceMonitor.labels Extra labels for the ServiceMonitor

    ##

    labels: {}

--------------------------------

after this steps, you should follow this command:

$ kubectl create namespace (namespace)

$ helm install jenkins jenkins/jenkins -f (jenkins_filename) -n (namespace)


it will take about 2-3 minuates to deploy Jenkins using Helm chart Correctly

$ kubectl get pods --all-namespaces


if jenkins pod and service are work correctly, follow this command to enter jenkins:

$ kubectl get svc --all-namespaces


Now, we can enter Jenkins and we can confirm that it is working correctly.


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