bitnamicharts/wildfly
Bitnami Helm chart for WildFly
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Wildfly is a lightweight, open source application server, formerly known as JBoss, that implements the latest enterprise Java standards.
Trademarks: This software listing is packaged by Bitnami. The respective trademarks mentioned in the offering are owned by the respective companies, and use of them does not imply any affiliation or endorsement.
helm install my-release oci://registry-1.docker.io/bitnamicharts/wildfly
Looking to use WildFly in production? Try VMware Tanzu Application Catalog, the commercial edition of the Bitnami catalog.
This chart bootstraps a WildFly deployment on a Kubernetes cluster using the Helm package manager.
WildFly is written in Java, and implements the Java Platform, Enterprise Edition (Java EE) specification.
Bitnami charts can be used with Kubeapps for deployment and management of Helm Charts in clusters.
To install the chart with the release name my-release
:
helm install my-release oci://REGISTRY_NAME/REPOSITORY_NAME/wildfly
Note: You need to substitute the placeholders
REGISTRY_NAME
andREPOSITORY_NAME
with a reference to your Helm chart registry and repository. For example, in the case of Bitnami, you need to useREGISTRY_NAME=registry-1.docker.io
andREPOSITORY_NAME=bitnamicharts
.
These commands deploy WildFly on the Kubernetes cluster in the default configuration. The Parameters section lists the parameters that can be configured during installation.
Tip: List all releases using
helm list
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.
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.
Bitnami charts configure credentials at first boot. Any further change in the secrets or credentials require manual intervention. Follow these instructions:
kubectl create secret generic SECRET_NAME --from-literal=wildfly-password=PASSWORD --dry-run -o yaml | kubectl apply -f -
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.
To add extra environment variables (useful for advanced operations like custom init scripts), use the extraEnvVars
property.
extraEnvVars:
- name: LOG_LEVEL
value: DEBUG
Alternatively, use a ConfigMap or a Secret with the environment variables. To do so, use the extraEnvVarsCM
or the extraEnvVarsSecret
values.
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
NOTE: This Helm chart already includes sidecar containers for the Prometheus exporters (where applicable). These can be activated by adding the
--enable-metrics=true
parameter at deployment time. Thesidecars
parameter should therefore only be used for any extra sidecar containers.
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.
This chart allows you to set custom Pod affinity using the affinity
parameter. Find more information about Pod affinity in the Kubernetes documentation.
As an alternative, use one 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.
The Bitnami WildFly image stores the WildFly data and configurations at the /bitnami/wildfly
path of the container.
Persistent Volume Claims are used to keep the data across deployments. This is known to work in GCE, AWS, and minikube. See the Parameters section to configure the PVC or to disable persistence.
As the image run as non-root by default, it is necessary to adjust the ownership of the persistent volume so that the container can write data into it.
By default, the chart is configured to use Kubernetes Security Context to automatically change the ownership of the volume. However, this feature does not work in all Kubernetes distributions. As an alternative, this chart supports using an initContainer to change the ownership of the volume before mounting it in the final destination.
You can enable this initContainer by setting volumePermissions.enabled
to true
.
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.storageClass | DEPRECATED: use global.defaultStorageClass instead | "" |
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) | disabled |
Name | Description | Value |
---|---|---|
kubeVersion | Override Kubernetes version | "" |
nameOverride | String to partially override common.names.fullname | "" |
fullnameOverride | String to fully override common.names.fullname | "" |
commonLabels | Labels to add to all deployed objects | {} |
commonAnnotations | Annotations to add to all deployed objects | {} |
clusterDomain | Kubernetes cluster domain name | 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 the deployment(s)/statefulset(s) | ["sleep"] |
diagnosticMode.args | Args to override all containers in the the deployment(s)/statefulset(s) | ["infinity"] |
Name | Description | Value |
---|---|---|
image.registry | WildFly image registry | REGISTRY_NAME |
image.repository | WildFly image repository | REPOSITORY_NAME/wildfly |
image.digest | WildFly image digest in the way sha256:aa.... Please note this parameter, if set, will override the tag | "" |
image.pullPolicy | WildFly image pull policy | IfNotPresent |
image.pullSecrets | WildFly image pull secrets | [] |
image.debug | Enable image debug mode | false |
Name | Description | Value |
---|---|---|
wildflyUsername | WildFly username | user |
wildflyPassword | WildFly user password | "" |
exposeManagementConsole | Allows exposing the WildFly Management console outside the cluster | false |
command | Override default container command (useful when using custom images) | [] |
args | Override default container args (useful when using custom images) | [] |
lifecycleHooks | for the container to automate configuration before or after startup | {} |
extraEnvVars | Array with extra environment variables to add to the WildFly container | [] |
extraEnvVarsCM | Name of existing ConfigMap containing extra env vars | "" |
extraEnvVarsSecret | Name of existing Secret containing extra env vars | "" |
Name | Description | Value |
---|---|---|
replicaCount | Number of Wildfly replicas to deploy | 1 |
updateStrategy.type | WildFly deployment strategy type | RollingUpdate |
automountServiceAccountToken | Mount Service Account token in pod | true |
hostAliases | WildFly pod host aliases | [] |
extraVolumes | Optionally specify extra list of additional volumes for WildFly pods | [] |
extraVolumeMounts | Optionally specify extra list of additional volumeMounts for WildFly container(s) | [] |
serviceAccountName | Name of existing ServiceAccount to be connected | "" |
sidecars | Add additional sidecar containers to the WildFly pod | [] |
initContainers | Add additional init containers to the WildFly pods | [] |
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. | "" |
podLabels | Extra labels for WildFly pods | {} |
podAnnotations | Annotations for WildFly 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 | {} |
priorityClassName | Pod priorityClassName | "" |
schedulerName | Name of the k8s scheduler (other than default) | "" |
topologySpreadConstraints | Topology Spread Constraints for pod assignment | [] |
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) | {} |
containerPorts.http | WildFly HTTP container port | 8080 |
containerPorts.https | WildFly HTTPS container port | 8443 |
containerPorts.mgmt | WildFly Management container port |
Note: the README for this chart is longer than the DockerHub length limit of 25000, so it has been trimmed. The full README can be found at https://github.com/bitnami/charts/blob/main/bitnami/wildfly/README.md