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Helm chart for Keycloak

Keycloak is a high performance Java-based identity and access management solution. It lets developers add an authentication layer to their applications with minimum effort.

Overview of Keycloak

This chart is forked from https://github.com/bitnami/charts/tree/main/bitnami/keycloak to support using upstream images for keycloak. Some features might not be available.

TL;DR

helm install my-release oci://ghcr.io/teutonet/keycloak-chart/keycloak

Prerequisites

  • Kubernetes 1.23+
  • Helm 3.8.0+

Installing the Chart

To install the chart with the release name my-release:

helm install my-release oci://ghcr.io/teutonet/keycloak-chart/keycloak

These commands deploy a Keycloak application on the Kubernetes cluster in the default configuration.

Tip: List all releases using helm list

Configuration and installation details

Prometheus metrics

This chart can be integrated with Prometheus by setting metrics.enabled to true. This will expose Keycloak native Prometheus endpoint in a metrics service, which can be configured under the metrics.service section. It will have the necessary annotations to be automatically scraped by Prometheus.

Prometheus requirements

It is necessary to have a working installation of Prometheus or Prometheus Operator for the integration to work. Install the Bitnami Prometheus helm chart or the Bitnami Kube Prometheus helm chart to easily have a working Prometheus in your cluster.

Integration with Prometheus Operator

The chart can deploy ServiceMonitor objects for integration with Prometheus Operator installations. To do so, set the value metrics.serviceMonitor.enabled=true. Ensure that the Prometheus Operator CustomResourceDefinitions are installed in the cluster or it will fail with the following error:

no matches for kind "ServiceMonitor" in version "monitoring.coreos.com/v1"

Install the Bitnami Kube Prometheus helm chart for having the necessary CRDs and the Prometheus Operator.

It is strongly recommended to use immutable tags in a production environment. This ensures your deployment does not change automatically if the same tag is updated with a different image.

Bitnami will release a new chart updating its containers if a new version of the main container, significant changes, or critical vulnerabilities exist.

Use an external database

Sometimes, you may want to have Keycloak connect to an external PostgreSQL database rather than a database within your cluster - for example, when using a managed database service, or when running a single database server for all your applications. To do this, set the postgresql.enabled parameter to false and specify the credentials for the external database using the externalDatabase.* parameters. Here is an example:

postgresql.enabled=false
externalDatabase.host=myexternalhost
externalDatabase.user=myuser
externalDatabase.password=mypassword
externalDatabase.database=mydatabase
externalDatabase.port=5432
externalDatabase.schema=public

NOTE: Only PostgreSQL database server is supported as external database

It is not supported but possible to run Keycloak with an external MSSQL database with the following settings:

externalDatabase:
  host: "mssql.example.com"
  port: 1433
  user: keycloak
  database: keycloak
  existingSecret: passwords
extraEnvVars:
  - name: KC_DB # override values from the conf file
    value: 'mssql'
  - name: KC_DB_URL
    value: 'jdbc:sqlserver://mssql.example.com:1433;databaseName=keycloak;'

Importing and exporting a realm

Importing a realm

You can import a realm by setting the KEYCLOAK_EXTRA_ARGS to contain the --import-realm argument.

This will import all *.json under /opt/keycloak/data/import files as a realm into keycloak as per the official documentation here. You can supply the files by mounting a volume e.g. with docker compose as follows:

keycloak:
  image: keycloak/keycloak:latest
  volumes:
    - /local/path/to/realms/folder:/opt/keycloak/data/import

Exporting a realm

You can export a realm through the GUI but it will not export users even the option is set, this is a known keycloak bug.

By using the kc.sh script you can export a realm with users. Be sure to mount the export folder to a local folder:

keycloak:
  image: keycloak/keycloak:latest
  volumes:
    - /local/path/to/export/folder:/export

Then open a terminal in the running keycloak container and run:

kc.sh export --dir /export/ --users realm_file

This will export the all the realms with users to the /export folder.

Configure Ingress

This chart provides support for Ingress resources. If you have an ingress controller installed on your cluster, such as nginx-ingress-controller or contour you can utilize the ingress controller to serve your application. To enable Ingress integration, set ingress.enabled to true.

The most common scenario is to have one host name mapped to the deployment. In this case, the ingress.hostname property can be used to set the host name. The ingress.tls parameter can be used to add the TLS configuration for this host.

However, it is also possible to have more than one host. To facilitate this, the ingress.extraHosts parameter (if available) can be set with the host names specified as an array. The ingress.extraTLS parameter (if available) can also be used to add the TLS configuration for extra hosts.

NOTE: For each host specified in the ingress.extraHosts parameter, it is necessary to set a name, path, and any annotations that the Ingress controller should know about. Not all annotations are supported by all Ingress controllers, but this annotation reference document lists the annotations supported by many popular Ingress controllers.

Adding the TLS parameter (where available) will cause the chart to generate HTTPS URLs, and the application will be available on port 443. The actual TLS secrets do not have to be generated by this chart. However, if TLS is enabled, the Ingress record will not work until the TLS secret exists.

Learn more about Ingress controllers.

Configure TLS Secrets for use with Ingress

This chart facilitates the creation of TLS secrets for use with the Ingress controller (although this is not mandatory). There are several common use cases:

  • Generate certificate secrets based on chart parameters.
  • Enable externally generated certificates.
  • Manage application certificates via an external service (like cert-manager).
  • Create self-signed certificates within the chart (if supported).

In the first two cases, a certificate and a key are needed. Files are expected in .pem format.

Here is an example of a certificate file:

NOTE: There may be more than one certificate if there is a certificate chain.

-----BEGIN CERTIFICATE-----
MIID6TCCAtGgAwIBAgIJAIaCwivkeB5EMA0GCSqGSIb3DQEBCwUAMFYxCzAJBgNV
...
jScrvkiBO65F46KioCL9h5tDvomdU1aqpI/CBzhvZn1c0ZTf87tGQR8NK7v7
-----END CERTIFICATE-----

Here is an example of a certificate key:

-----BEGIN RSA PRIVATE KEY-----
MIIEogIBAAKCAQEAvLYcyu8f3skuRyUgeeNpeDvYBCDcgq+LsWap6zbX5f8oLqp4
...
wrj2wDbCDCFmfqnSJ+dKI3vFLlEz44sAV8jX/kd4Y6ZTQhlLbYc=
-----END RSA PRIVATE KEY-----
  • If using Helm to manage the certificates based on the parameters, copy these values into the certificate and key values for a given *.ingress.secrets entry.
  • If managing TLS secrets separately, it is necessary to create a TLS secret with name INGRESS_HOSTNAME-tls (where INGRESS_HOSTNAME is a placeholder to be replaced with the hostname you set using the *.ingress.hostname parameter).
  • If your cluster has a cert-manager add-on to automate the management and issuance of TLS certificates, add to *.ingress.annotations the corresponding ones for cert-manager.
  • If using self-signed certificates created by Helm, set both *.ingress.tls and *.ingress.selfSigned to true.

Securing traffic using TLS

TLS support for the web interface can be enabled in the chart by specifying the tls.enabled=true. Two possible options are available:

  • Provide your own secret with the PEM or JKS certificates
  • Have the chart auto-generate the certificates.

Providing your own TLS secret

To provide your own secret set the tls.existingSecret value. It is possible to use PEM or JKS.

To use PEM Certs:

  • tls.usePemCerts=true: Use PEM certificates instead of a JKS file.
  • tls.certFilename: Certificate filename. Defaults to tls.crt.
  • tls.certKeyFilename: Certificate key filename. Defaults to tls.key

To use JKS keystore:

  • tls.usePemCerts=false: Use JKS file.
  • tls.keystoreFilename: Certificate filename. Defaults to keycloak.keystore.jks.
  • tls.truststoreFilename: Truststore filename. Defaults to keycloak.truststore.jks.

In the following example we will use PEM certificates. First, create the secret with the certificates files:

kubectl create secret generic certificates-tls-secret --from-file=./cert.pem --from-file=./cert.key

Then, use the following parameters:

tls.enabled=true
tls.autoGenerated.enabled=false
tls.usePemCerts=true
tls.existingSecret="certificates-tls-secret"
tls.certFilename="cert.pem"
tls.certKeyFilename="cert.key"

Auto-generation of TLS certificates

It is also possible to rely on the chart certificate auto-generation capabilities. The chart supports two different ways to auto-generate the required certificates:

  • Using Helm capabilities. Enable this feature by setting tls.autoGenerated.enabled to true and tls.autoGenerated.engine to helm.
  • Relying on CertManager (please note it's required to have CertManager installed in your K8s cluster). Enable this feature by setting tls.autoGenerated.enabled to true and tls.autoGenerated.engine to cert-manager. Please note it's supported to use an existing Issuer/ClusterIssuer for issuing the TLS certificates by setting the tls.autoGenerated.certManager.existingIssuer and tls.autoGenerated.certManager.existingIssuerKind parameters.

Use with ingress offloading SSL

If your ingress controller has the TLS/SSL Termination, you might need to properly configure the reverse proxy headers via the proxyHeaders parameter. Find more information in the upstream documentation.

Update credentials

Bitnami charts configure credentials at first boot. Any further change in the secrets or credentials require manual intervention. Follow these instructions:

  • Update the user password following the upstream documentation
  • Update the password secret with the new values (replace the SECRET_NAME and PASSWORD placeholders)
kubectl create secret generic SECRET_NAME --from-literal=admin-password=PASSWORD --dry-run -o yaml | kubectl apply -f -

Backup and restore

To back up and restore Helm chart deployments on Kubernetes, you need to back up the persistent volumes from the source deployment and attach them to a new deployment using Velero, a Kubernetes backup/restore tool. Find the instructions for using Velero in this guide.

Resource requests and limits

Bitnami charts allow setting resource requests and limits for all containers inside the chart deployment. These are inside the resources value (check parameter table). Setting requests is essential for production workloads and these should be adapted to your specific use case.

To make this process easier, the chart contains the resourcesPreset values, which automatically sets the resources section according to different presets. Check these presets in the bitnami/common chart. However, in production workloads using resourcesPreset is discouraged as it may not fully adapt to your specific needs. Find more information on container resource management in the official Kubernetes documentation.

Set Pod affinity

This chart allows you to set your custom affinity using the affinity parameter. Find more information about Pod's affinity in the kubernetes documentation.

As an alternative, you can use of the preset configurations for pod affinity, pod anti-affinity, and node affinity available at the bitnami/common chart. To do so, set the podAffinityPreset, podAntiAffinityPreset, or nodeAffinityPreset parameters.

Add extra environment variables

In case you want to add extra environment variables (useful for advanced operations like custom init scripts), you can use the extraEnvVars property.

extraEnvVars:
  - name: KEYCLOAK_LOG_LEVEL
    value: DEBUG

Alternatively, you can use a ConfigMap or a Secret with the environment variables. To do so, use the extraEnvVarsCM or the extraEnvVarsSecret values.

Use Sidecars and Init Containers

If additional containers are needed in the same pod (such as additional metrics or logging exporters), they can be defined using the sidecars config parameter.

sidecars:
- name: your-image-name
  image: your-image
  imagePullPolicy: Always
  ports:
  - name: portname
    containerPort: 1234

If these sidecars export extra ports, extra port definitions can be added using the service.extraPorts parameter (where available), as shown in the example below:

service:
  extraPorts:
  - name: extraPort
    port: 11311
    targetPort: 11311

If additional init containers are needed in the same pod, they can be defined using the initContainers parameter. Here is an example:

initContainers:
  - name: your-image-name
    image: your-image
    imagePullPolicy: Always
    ports:
      - name: portname
        containerPort: 1234

Learn more about sidecar containers and init containers.

Initialize a fresh instance

The Bitnami Keycloak image allows you to use your custom scripts to initialize a fresh instance. In order to execute the scripts, you can specify custom scripts using the initdbScripts parameter as dict.

In addition to this option, you can also set an external ConfigMap with all the initialization scripts. This is done by setting the initdbScriptsConfigMap parameter. Note that this will override the previous option.

The allowed extensions is .sh.

Deploy extra resources

There are cases where you may want to deploy extra objects, such a ConfigMap containing your app's configuration or some extra deployment with a micro service used by your app. For covering this case, the chart allows adding the full specification of other objects using the extraDeploy parameter.

Parameters

Global parameters

Name Description Value
global.imageRegistry Global Docker Image registry ""
global.imagePullSecrets Global Docker registry secret names as an array []
global.defaultStorageClass Global default StorageClass for Persistent Volume(s) ""
global.security.allowInsecureImages Allows skipping image verification false
global.compatibility.openshift.adaptSecurityContext Adapt the securityContext sections of the deployment to make them compatible with Openshift restricted-v2 SCC: remove runAsUser, runAsGroup and fsGroup and let the platform use their allowed default IDs. Possible values: auto (apply if the detected running cluster is Openshift), force (perform the adaptation always), disabled (do not perform adaptation) auto
global.compatibility.omitEmptySeLinuxOptions If set to true, removes the seLinuxOptions from the securityContexts when it is set to an empty object false

Common parameters

Name Description Value
kubeVersion Override Kubernetes version reported by .Capabilities ""
apiVersions Override Kubernetes API versions reported by .Capabilities []
nameOverride String to partially override common.names.name ""
fullnameOverride String to fully override common.names.fullname ""
namespaceOverride String to fully override common.names.namespace ""
commonLabels Labels to add to all deployed objects {}
commonAnnotations Annotations to add to all deployed objects {}
clusterDomain Default Kubernetes cluster domain cluster.local
extraDeploy Array of extra objects to deploy with the release []
diagnosticMode.enabled Enable diagnostic mode (all probes will be disabled and the command will be overridden) false
diagnosticMode.command Command to override all containers in the chart release ["sleep"]
diagnosticMode.args Args to override all containers in the chart release ["infinity"]
useHelmHooks Enable use of Helm hooks if needed, e.g. on post-install jobs true

Keycloak parameters

Name Description Value
image.registry Keycloak image registry quay.io
image.repository Keycloak image repository keycloak/keycloak
image.digest Keycloak image digest in the way sha256:aa.... Please note this parameter, if set, will override the tag ""
image.pullPolicy Keycloak image pull policy IfNotPresent
image.pullSecrets Keycloak image pull secrets []
auth.adminUser Keycloak administrator user user
auth.adminPassword Keycloak administrator password for the new user ""
auth.existingSecret Existing secret containing Keycloak admin password ""
auth.passwordSecretKey Key where the Keycloak admin password is being stored inside the existing secret. ""
auth.annotations Additional custom annotations for Keycloak auth secret object {}
production Run Keycloak in production mode. TLS configuration is required except when using proxy headers false
tls.enabled Enable TLS in Keycloak false
tls.usePemCerts Use PEM certificates as input instead of PKS12/JKS stores false
tls.autoGenerated.enabled Enable automatic generation of TLS certificates true
tls.autoGenerated.engine Mechanism to generate the certificates (allowed values: helm, cert-manager) helm
tls.autoGenerated.certManager.existingIssuer The name of an existing Issuer to use for generating the certificates (only for cert-manager engine) ""
tls.autoGenerated.certManager.existingIssuerKind Existing Issuer kind, defaults to Issuer (only for cert-manager engine) ""
tls.autoGenerated.certManager.keyAlgorithm Key algorithm for the certificates (only for cert-manager engine) RSA
tls.autoGenerated.certManager.keySize Key size for the certificates (only for cert-manager engine) 2048
tls.autoGenerated.certManager.duration Duration for the certificates (only for cert-manager engine) 2160h
tls.autoGenerated.certManager.renewBefore Renewal period for the certificates (only for cert-manager engine) 360h
tls.existingSecret The name of an existing Secret containing the TLS certificates for Keycloak replicas ""
tls.certFilename Certificate filename inside the existing secret (when tls.usePemCerts=true and tls.autoGenerated.enabled=false) tls.crt
tls.certKeyFilename Certificate key filename inside the existing secret (when tls.usePemCerts=true and tls.autoGenerated.enabled=false) tls.key
tls.keystoreFilename Keystore filename inside the existing secret keycloak.keystore.jks
tls.truststoreFilename Truststore filename inside the existing secret keycloak.truststore.jks
tls.keystorePassword Password to access the keystore when it's password-protected ""
tls.truststorePassword Password to access the truststore when it's password-protected ""
tls.passwordsSecret The name of an existing Secret containing the keystore/truststore passwords (expected keys: tls-keystore-password and tls-truststore-password) ""
trustedCertsExistingSecret Name of the existing Secret containing the trusted certificates to validate communications with external services ""
adminRealm Name of the admin realm master
proxyHeaders Set Keycloak proxy headers ""
hostnameStrict Disables dynamically resolving the hostname from request headers (ignored if ingress.enabled is false). false
httpEnabled Force enabling HTTP endpoint (by default is only enabled if TLS is disabled) false
httpRelativePath Set the path relative to '/' for serving resources /
cache.enabled Switch to enable or disable the Keycloak distributed cache for kubernetes. true
cache.stack Cache stack to use jdbc-ping
cache.configFile Path to the file from which cache configuration should be loaded from cache-ispn.xml
cache.useHeadlessServiceWithAppVersion Create a headless service used for ispn containing the app version false
cache.javaOptsAppendExtra Extra java options to append to the java options ""
logging.output Alternates between the default log output format or json format default
logging.level Allowed values as documented: FATAL, ERROR, WARN, INFO, DEBUG, TRACE, ALL, OFF INFO
configuration Keycloak Configuration. Auto-generated based on other parameters when not specified ""
existingConfigmap Name of existing ConfigMap with Keycloak configuration ""
extraStartupArgs Extra default startup args ""
initdbScripts Dictionary of initdb scripts {}
initdbScriptsConfigMap ConfigMap with the initdb scripts (Note: Overrides initdbScripts) ""
command Override default container command (useful when using custom images) []
args Override default container args (useful when using custom images) []
extraEnvVars Extra environment variables to be set on Keycloak container []
extraEnvVarsCM Name of existing ConfigMap containing extra env vars ""
extraEnvVarsSecret Name of existing Secret containing extra env vars ""
containerPorts.http Keycloak HTTP container port 8080
containerPorts.https Keycloak HTTPS container port 8443
containerPorts.management Keycloak management container port 9000
extraContainerPorts Optionally specify extra list of additional ports for Keycloak container []
podSecurityContext.enabled Enabled Keycloak pods' Security Context true
podSecurityContext.fsGroupChangePolicy Set filesystem group change policy Always
podSecurityContext.sysctls Set kernel settings using the sysctl interface []
podSecurityContext.supplementalGroups Set filesystem extra groups []
podSecurityContext.fsGroup Set Keycloak pod's Security Context fsGroup 1001
containerSecurityContext.enabled Enabled containers' Security Context true
containerSecurityContext.seLinuxOptions Set SELinux options in container {}
containerSecurityContext.runAsUser Set containers' Security Context runAsUser 1001
containerSecurityContext.runAsGroup Set containers' Security Context runAsGroup 1001
containerSecurityContext.runAsNonRoot Set container's Security Context runAsNonRoot true
containerSecurityContext.privileged Set container's Security Context privileged false
containerSecurityContext.readOnlyRootFilesystem Set container's Security Context readOnlyRootFilesystem true
containerSecurityContext.allowPrivilegeEscalation Set container's Security Context allowPrivilegeEscalation false
containerSecurityContext.capabilities.drop List of capabilities to be dropped ["ALL"]
containerSecurityContext.seccompProfile.type Set container's Security Context seccomp profile RuntimeDefault
resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if resources is set (resources is recommended for production). small
resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
livenessProbe.enabled Enable livenessProbe on Keycloak containers true
livenessProbe.initialDelaySeconds Initial delay seconds for livenessProbe 120
livenessProbe.periodSeconds Period seconds for livenessProbe 1
livenessProbe.timeoutSeconds Timeout seconds for livenessProbe 5
livenessProbe.failureThreshold Failure threshold for livenessProbe 3
livenessProbe.successThreshold Success threshold for livenessProbe 1
readinessProbe.enabled Enable readinessProbe on Keycloak containers true
readinessProbe.initialDelaySeconds Initial delay seconds for readinessProbe 30
readinessProbe.periodSeconds Period seconds for readinessProbe 10
readinessProbe.timeoutSeconds Timeout seconds for readinessProbe 1
readinessProbe.failureThreshold Failure threshold for readinessProbe 3
readinessProbe.successThreshold Success threshold for readinessProbe 1
startupProbe.enabled Enable startupProbe on Keycloak containers false
startupProbe.initialDelaySeconds Initial delay seconds for startupProbe 30
startupProbe.periodSeconds Period seconds for startupProbe 5
startupProbe.timeoutSeconds Timeout seconds for startupProbe 1
startupProbe.failureThreshold Failure threshold for startupProbe 10
startupProbe.successThreshold Success threshold for startupProbe 1
customLivenessProbe Custom Liveness probes for Keycloak {}
customReadinessProbe Custom Readiness probes Keycloak {}
customStartupProbe Custom Startup probes for Keycloak {}

Keycloak StatefulSet parameters

Name Description Value
replicaCount Number of Keycloak replicas to deploy 1
updateStrategy.type Keycloak StatefulSet type RollingUpdate
revisionHistoryLimitCount Number of controller revisions to keep 10
minReadySeconds How many seconds a pod needs to be ready before killing the next, during update 0
statefulsetAnnotations Optionally add extra annotations on the StatefulSet resource {}
automountServiceAccountToken Mount Service Account token in Keycloak pods true
hostAliases Deployment pod host aliases []
podLabels Extra labels for Keycloak pods {}
podAnnotations Annotations for Keycloak pods {}
podAffinityPreset Pod affinity preset. Ignored if affinity is set. Allowed values: soft or hard ""
podAntiAffinityPreset Pod anti-affinity preset. Ignored if affinity is set. Allowed values: soft or hard soft
nodeAffinityPreset.type Node affinity preset type. Ignored if affinity is set. Allowed values: soft or hard ""
nodeAffinityPreset.key Node label key to match. Ignored if affinity is set. ""
nodeAffinityPreset.values Node label values to match. Ignored if affinity is set. []
affinity Affinity for pod assignment {}
nodeSelector Node labels for pod assignment {}
tolerations Tolerations for pod assignment []
topologySpreadConstraints Topology Spread Constraints for pod assignment spread across your cluster among failure-domains. Evaluated as a template []
podManagementPolicy Pod management policy for the Keycloak StatefulSet Parallel
priorityClassName Keycloak pods' Priority Class Name ""
schedulerName Use an alternate scheduler, e.g. "stork". ""
terminationGracePeriodSeconds Seconds Keycloak pod needs to terminate gracefully ""
lifecycleHooks LifecycleHooks to set additional configuration at startup {}
dnsPolicy DNS Policy for pod ""
dnsConfig DNS Configuration pod {}
enableServiceLinks If set to false, disable Kubernetes service links in the pod spec true
extraVolumes Optionally specify extra list of additional volumes for Keycloak pods []
extraVolumeMounts Optionally specify extra list of additional volumeMounts for Keycloak container(s) []
initContainers Add additional init containers to the Keycloak pods []
sidecars Add additional sidecar containers to the Keycloak pods []

Traffic Exposure Parameters

Name Description Value
service.type Kubernetes service type ClusterIP
service.http.enabled Enable http port on service true
service.ports.http Keycloak service HTTP port 80
service.ports.https Keycloak service HTTPS port 443
service.nodePorts.http Node port for HTTP ""
service.nodePorts.https Node port for HTTPS ""
service.extraPorts Extra port to expose on Keycloak service []
service.sessionAffinity Control where client requests go, to the same pod or round-robin None
service.sessionAffinityConfig Additional settings for the sessionAffinity {}
service.clusterIP Keycloak service clusterIP IP ""
service.loadBalancerIP loadBalancerIP for the SuiteCRM Service (optional, cloud specific) ""
service.loadBalancerSourceRanges Address that are allowed when service is LoadBalancer []
service.externalTrafficPolicy Enable client source IP preservation Cluster
service.annotations Additional custom annotations for Keycloak service {}
service.headless.annotations Annotations for the headless service. {}
service.headless.extraPorts Extra ports to expose on Keycloak headless service []
ingress.enabled Enable ingress record generation for Keycloak false
ingress.pathType Ingress path type ImplementationSpecific
ingress.apiVersion Force Ingress API version (automatically detected if not set) ""
ingress.hostname Default host for the ingress record (evaluated as template) keycloak.local
ingress.ingressClassName IngressClass that will be be used to implement the Ingress (evaluated as template) ""
ingress.controller The ingress controller type. Currently supports default and gce default
ingress.path Default path for the ingress record {{ .Values.httpRelativePath }}
ingress.servicePort Backend service port to use http
ingress.annotations Additional annotations for the Ingress resource. To enable certificate autogeneration, place here your cert-manager annotations. {}
ingress.labels Additional labels for the Ingress resource. {}
ingress.tls Enable TLS configuration for the host defined at ingress.hostname parameter false
ingress.selfSigned Create a TLS secret for this ingress record using self-signed certificates generated by Helm false
ingress.extraHosts An array with additional hostname(s) to be covered with the ingress record []
ingress.extraPaths Any additional arbitrary paths that may need to be added to the ingress under the main host. []
ingress.extraTls The tls configuration for additional hostnames to be covered with this ingress record. []
ingress.secrets If you're providing your own certificates, please use this to add the certificates as secrets []
ingress.extraRules Additional rules to be covered with this ingress record []
networkPolicy.enabled Specifies whether a NetworkPolicy should be created true
networkPolicy.allowExternal Don't require server label for connections true
networkPolicy.allowExternalEgress Allow the pod to access any range of port and all destinations. true
networkPolicy.addExternalClientAccess Allow access from pods with client label set to "true". Ignored if networkPolicy.allowExternal is true. true
networkPolicy.kubeAPIServerPorts List of possible endpoints to kube-apiserver (limit to your cluster settings to increase security) []
networkPolicy.extraIngress Add extra ingress rules to the NetworkPolicy []
networkPolicy.extraEgress Add extra ingress rules to the NetworkPolicy []
networkPolicy.ingressPodMatchLabels Labels to match to allow traffic from other pods. Ignored if networkPolicy.allowExternal is true. {}
networkPolicy.ingressNSMatchLabels Labels to match to allow traffic from other namespaces {}
networkPolicy.ingressNSPodMatchLabels Pod labels to match to allow traffic from other namespaces {}

Other parameters

Name Description Value
serviceAccount.create Specifies whether a ServiceAccount should be created true
serviceAccount.name The name of the ServiceAccount to use. ""
serviceAccount.annotations Additional Service Account annotations (evaluated as a template) {}
serviceAccount.automountServiceAccountToken Automount service account token for the server service account true
serviceAccount.extraLabels Additional Service Account labels (evaluated as a template) {}
pdb.create Enable/disable a Pod Disruption Budget creation true
pdb.minAvailable Minimum number/percentage of pods that should remain scheduled ""
pdb.maxUnavailable Maximum number/percentage of pods that may be made unavailable. Defaults to 1 if both pdb.minAvailable and pdb.maxUnavailable are empty. ""
autoscaling.vpa.enabled Enable VPA for Keycloak pods false
autoscaling.vpa.annotations Annotations for VPA resource {}
autoscaling.vpa.controlledResources VPA List of resources that the vertical pod autoscaler can control. Defaults to cpu and memory []
autoscaling.vpa.maxAllowed VPA Max allowed resources for the pod {}
autoscaling.vpa.minAllowed VPA Min allowed resources for the pod {}
autoscaling.vpa.updatePolicy.updateMode Autoscaling update policy Auto
autoscaling.hpa.enabled Enable HPA for Keycloak pods false
autoscaling.hpa.minReplicas Minimum number of Keycloak replicas 1
autoscaling.hpa.maxReplicas Maximum number of Keycloak replicas 11
autoscaling.hpa.targetCPU Target CPU utilization percentage ""
autoscaling.hpa.targetMemory Target Memory utilization percentage ""
autoscaling.hpa.behavior.scaleUp.stabilizationWindowSeconds The number of seconds for which past recommendations should be considered while scaling up 120
autoscaling.hpa.behavior.scaleUp.selectPolicy The priority of policies that the autoscaler will apply when scaling up Max
autoscaling.hpa.behavior.scaleUp.policies HPA scaling policies when scaling up []
autoscaling.hpa.behavior.scaleDown.stabilizationWindowSeconds The number of seconds for which past recommendations should be considered while scaling down 300
autoscaling.hpa.behavior.scaleDown.selectPolicy The priority of policies that the autoscaler will apply when scaling down Max
autoscaling.hpa.behavior.scaleDown.policies HPA scaling policies when scaling down []

Metrics parameters

Name Description Value
metrics.enabled Enable exposing Keycloak metrics false
metrics.service.ports.metrics Metrics service Metrics port 9000
metrics.service.annotations Annotations for enabling prometheus to access the metrics endpoints {}
metrics.service.extraPorts Add additional ports to the keycloak metrics service []
metrics.serviceMonitor.enabled if true, creates a Prometheus Operator ServiceMonitor (also requires metrics.enabled to be true) false
metrics.serviceMonitor.namespace Namespace in which Prometheus is running ""
metrics.serviceMonitor.annotations Additional custom annotations for the ServiceMonitor {}
metrics.serviceMonitor.labels Extra labels for the ServiceMonitor {}
metrics.serviceMonitor.jobLabel The name of the label on the target service to use as the job name in Prometheus ""
metrics.serviceMonitor.honorLabels honorLabels chooses the metric's labels on collisions with target labels false
metrics.serviceMonitor.tlsConfig TLS configuration used for scrape endpoints used by Prometheus {}
metrics.serviceMonitor.interval Interval at which metrics should be scraped. ""
metrics.serviceMonitor.scrapeTimeout Timeout after which the scrape is ended ""
metrics.serviceMonitor.metricRelabelings Specify additional relabeling of metrics []
metrics.serviceMonitor.relabelings Specify general relabeling []
metrics.serviceMonitor.selector Prometheus instance selector labels {}
metrics.prometheusRule.enabled Create PrometheusRule Resource for scraping metrics using PrometheusOperator false
metrics.prometheusRule.namespace Namespace which Prometheus is running in ""
metrics.prometheusRule.labels Additional labels that can be used so PrometheusRule will be discovered by Prometheus {}
metrics.prometheusRule.groups Groups, containing the alert rules. []

keycloak-config-cli parameters

Name Description Value
keycloakConfigCli.enabled Whether to enable keycloak-config-cli job false
keycloakConfigCli.image.registry keycloak-config-cli container image registry REGISTRY_NAME
keycloakConfigCli.image.repository keycloak-config-cli container image repository REPOSITORY_NAME/keycloak-config-cli
keycloakConfigCli.image.digest keycloak-config-cli container image digest in the way sha256:aa.... Please note this parameter, if set, will override the tag ""
keycloakConfigCli.image.pullPolicy keycloak-config-cli container image pull policy IfNotPresent
keycloakConfigCli.image.pullSecrets keycloak-config-cli container image pull secrets []
keycloakConfigCli.annotations Annotations for keycloak-config-cli job {}
keycloakConfigCli.command Command for running the container (set to default if not set). Use array form []
keycloakConfigCli.args Args for running the container (set to default if not set). Use array form []
keycloakConfigCli.automountServiceAccountToken Mount Service Account token in pod true
keycloakConfigCli.hostAliases Job pod host aliases []
keycloakConfigCli.resourcesPreset Set container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if keycloakConfigCli.resources is set (keycloakConfigCli.resources is recommended for production). small
keycloakConfigCli.resources Set container requests and limits for different resources like CPU or memory (essential for production workloads) {}
keycloakConfigCli.containerSecurityContext.enabled Enabled keycloak-config-cli Security Context true
keycloakConfigCli.containerSecurityContext.seLinuxOptions Set SELinux options in container {}
keycloakConfigCli.containerSecurityContext.runAsUser Set keycloak-config-cli Security Context runAsUser 1001
keycloakConfigCli.containerSecurityContext.runAsGroup Set keycloak-config-cli Security Context runAsGroup 1001
keycloakConfigCli.containerSecurityContext.runAsNonRoot Set keycloak-config-cli Security Context runAsNonRoot true
keycloakConfigCli.containerSecurityContext.privileged Set keycloak-config-cli Security Context privileged false
keycloakConfigCli.containerSecurityContext.readOnlyRootFilesystem Set keycloak-config-cli Security Context readOnlyRootFilesystem true
keycloakConfigCli.containerSecurityContext.allowPrivilegeEscalation Set keycloak-config-cli Security Context allowPrivilegeEscalation false
keycloakConfigCli.containerSecurityContext.capabilities.drop List of capabilities to be dropped ["ALL"]
keycloakConfigCli.containerSecurityContext.seccompProfile.type Set keycloak-config-cli Security Context seccomp profile RuntimeDefault
keycloakConfigCli.podSecurityContext.enabled Enabled keycloak-config-cli pods' Security Context true
keycloakConfigCli.podSecurityContext.fsGroupChangePolicy Set filesystem group change policy Always
keycloakConfigCli.podSecurityContext.sysctls Set kernel settings using the sysctl interface []
keycloakConfigCli.podSecurityContext.supplementalGroups Set filesystem extra groups []
keycloakConfigCli.podSecurityContext.fsGroup Set keycloak-config-cli pod's Security Context fsGroup 1001
keycloakConfigCli.backoffLimit Number of retries before considering a Job as failed 1
keycloakConfigCli.podLabels Pod extra labels {}
keycloakConfigCli.podAnnotations Annotations for job pod {}
keycloakConfigCli.nodeSelector Node labels for pod assignment {}
keycloakConfigCli.tolerations Tolerations for job pod assignment []
keycloakConfigCli.availabilityCheck.enabled Whether to wait until Keycloak is available true
keycloakConfigCli.availabilityCheck.timeout Timeout for the availability check (Default is 120s) ""
keycloakConfigCli.extraEnvVars Additional environment variables to set []
keycloakConfigCli.extraEnvVarsCM ConfigMap with extra environment variables ""
keycloakConfigCli.extraEnvVarsSecret Secret with extra environment variables ""
keycloakConfigCli.extraVolumes Extra volumes to add to the job []
keycloakConfigCli.extraVolumeMounts Extra volume mounts to add to the container []
keycloakConfigCli.initContainers Add additional init containers to the Keycloak config cli pod []
keycloakConfigCli.sidecars Add additional sidecar containers to the Keycloak config cli pod []
keycloakConfigCli.configuration keycloak-config-cli realms configuration {}
keycloakConfigCli.existingConfigmap ConfigMap with keycloak-config-cli configuration ""
keycloakConfigCli.cleanupAfterFinished.enabled Enables Cleanup for Finished Jobs false
keycloakConfigCli.cleanupAfterFinished.seconds Sets the value of ttlSecondsAfterFinished 600

Default init container parameters

Name Description Value
defaultInitContainers.prepareWriteDirs.enabled Enable init container that copies writable directories to an empty dir true
defaultInitContainers.prepareWriteDirs.containerSecurityContext.enabled Enabled "prepare-write-dirs" init-containers' Security Context true
defaultInitContainers.prepareWriteDirs.containerSecurityContext.seLinuxOptions Set SELinux options in "prepare-write-dirs" init-containers {}
defaultInitContainers.prepareWriteDirs.containerSecurityContext.runAsUser Set runAsUser in "prepare-write-dirs" init-containers' Security Context 1001
defaultInitContainers.prepareWriteDirs.containerSecurityContext.runAsGroup Set runAsGroup in "prepare-write-dirs" init-containers' Security Context 1001
defaultInitContainers.prepareWriteDirs.containerSecurityContext.runAsNonRoot Set runAsNonRoot in "prepare-write-dirs" init-containers' Security Context true
defaultInitContainers.prepareWriteDirs.containerSecurityContext.privileged Set privileged in "prepare-write-dirs" init-containers' Security Context false
defaultInitContainers.prepareWriteDirs.containerSecurityContext.readOnlyRootFilesystem Set readOnlyRootFilesystem in "prepare-write-dirs" init-containers' Security Context true
defaultInitContainers.prepareWriteDirs.containerSecurityContext.allowPrivilegeEscalation Set allowPrivilegeEscalation in "prepare-write-dirs" init-containers' Security Context false
defaultInitContainers.prepareWriteDirs.containerSecurityContext.capabilities.drop List of capabilities to be dropped in "prepare-write-dirs" init-containers ["ALL"]
defaultInitContainers.prepareWriteDirs.containerSecurityContext.seccompProfile.type Set seccomp profile in "prepare-write-dirs" init-containers RuntimeDefault
defaultInitContainers.prepareWriteDirs.resourcesPreset Set Keycloak "prepare-write-dirs" init container resources according to one common preset (allowed values: none, nano, micro, small, medium, large, xlarge, 2xlarge). This is ignored if defaultInitContainers.prepareWriteDirs.resources is set (defaultInitContainers.prepareWriteDirs.resources is recommended for production). nano
defaultInitContainers.prepareWriteDirs.resources Set Keycloak "prepare-write-dirs" init container requests and limits for different resources like CPU or memory (essential for production workloads) {}

Database parameters

Name Description Value
postgresql.enabled Switch to enable or disable the PostgreSQL helm chart true
postgresql.auth.postgresPassword Password for the "postgres" admin user. Ignored if auth.existingSecret with key postgres-password is provided ""
postgresql.auth.username Name for a custom user to create bn_keycloak
postgresql.auth.password Password for the custom user to create ""
postgresql.auth.database Name for a custom database to create bitnami_keycloak
postgresql.auth.existingSecret Name of existing secret to use for PostgreSQL credentials ""
postgresql.auth.secretKeys.userPasswordKey Name of key in existing secret to use for PostgreSQL credentials. Only used when auth.existingSecret is set. password
postgresql.architecture PostgreSQL architecture (standalone or replication) standalone
externalDatabase.host Database host ""
externalDatabase.port Database port number 5432
externalDatabase.user Non-root username for Keycloak bn_keycloak
externalDatabase.password Password for the non-root username for Keycloak ""
externalDatabase.database Keycloak database name bitnami_keycloak
externalDatabase.schema Keycloak database schema public
externalDatabase.existingSecret Name of an existing secret resource containing the database credentials ""
externalDatabase.existingSecretUserKey Name of an existing secret key containing the database user ""
externalDatabase.existingSecretPasswordKey Name of an existing secret key containing the database credentials ""
externalDatabase.annotations Additional custom annotations for external database secret object {}
externalDatabase.extraParams Additional JDBC connection parameters appended to the JDBC URL (KC_DB_URL). ""

Specify each parameter using the --set key=value[,key=value] argument to helm install. For example,

helm install my-release --set auth.adminPassword=secretpassword oci://ghcr.io/teutonet/keycloak-chart/keycloak

The above command sets the Keycloak administrator password to secretpassword.

NOTE: Once this chart is deployed, it is not possible to change the application's access credentials, such as usernames or passwords, using Helm. To change these application credentials after deployment, delete any persistent volumes (PVs) used by the chart and re-deploy it, or use the application's built-in administrative tools if available.

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

helm install my-release -f values.yaml oci://ghcr.io/teutonet/keycloak-chart/keycloak

Tip: You can use the default values.yaml

Keycloak realms, users and clients can be created from the Keycloak administration panel.

Useful links

License

Copyright © 2025 Broadcom. The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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