Deploying on OpenShift
This guide covers generating and deploying OpenShift resources based on sane default and user supplied configuration.
Prerequisites
To complete this guide, you need:
-
Roughly 15 minutes
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An IDE
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JDK 11+ installed with
JAVA_HOMEconfigured appropriately -
Apache Maven 3.8.6
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Optionally the Quarkus CLI if you want to use it
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Access to an OpenShift cluster (Minishift is a viable option)
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OpenShift CLI (Optional, only required for manual deployment)
Bootstrapping the project
First, we need a new project that contains the OpenShift extension. This can be done using the following command:
Quarkus offers the ability to automatically generate OpenShift resources based on sane defaults and user supplied configuration. The OpenShift extension is actually a wrapper extension that brings together the kubernetes and container-image-s2i extensions with sensible defaults so that it’s easier for the user to get started with Quarkus on OpenShift.
When we added the OpenShift extension to the command line invocation above, the following dependency was added to the pom.xml
<dependency>
<groupId>io.quarkus</groupId>
<artifactId>quarkus-openshift</artifactId>
</dependency>
implementation("io.quarkus:quarkus-openshift")
Log Into the OpenShift Cluster
Before we build and deploy our application we need to log into an OpenShift cluster. You can log in via the OpenShift CLI:
oc login -u myUsername (1)
| 1 | You’ll be prompted for the required information such as server URL, password, etc. |
Alternatively, you may log in using the API token:
oc login --token=myToken --server=myServerUrl
| You can request the token via the Copy Login Command link in the OpenShift web console. |
Finally, you don’t need to use the OpenShift CLI at all.
Instead, set the quarkus.kubernetes-client.master-url config property and authenticate with the quarkus.kubernetes-client.token, or quarkus.kubernetes-client.username and quarkus.kubernetes-client.password respectively:
quarkus build -Dquarkus.kubernetes-client.master-url=myServerUrl -Dquarkus.kubernetes-client.token=myToken
./mvnw install -Dquarkus.kubernetes-client.master-url=myServerUrl -Dquarkus.kubernetes-client.token=myToken
./gradlew build -Dquarkus.kubernetes-client.master-url=myServerUrl -Dquarkus.kubernetes-client.token=myToken
Build and Deployment
You can trigger a build and deployment in a single step or build the container image first and then configure the OpenShift application manually if you need more control over the deployment configuration.
To trigger a build and deployment in a single step:
quarkus build -Dquarkus.kubernetes.deploy=true
./mvnw install -Dquarkus.kubernetes.deploy=true
./gradlew build -Dquarkus.kubernetes.deploy=true
If you want to test your application immediately then set the quarkus.openshift.route.expose config property to true to expose the service automatically, e.g. add -Dquarkus.openshift.route.expose=true to the command above.
|
This command will build your application locally, then trigger a container image build and finally apply the generated OpenShift resources automatically.
The generated resources use OpenShift’s DeploymentConfig that is configured to automatically trigger a redeployment when a change in the ImageStream is noticed.
In other words, any container image build after the initial deployment will automatically trigger redeployment, without the need to delete, update or re-apply the generated resources.
You can use the OpenShift web console to verify that the above command has created an image stream, a service resource and has deployed the application. Alternatively, you can run the following OpenShift CLI commands:
oc get is (1)
oc get pods (2)
oc get svc (3)
| 1 | Lists the image streams created. |
| 2 | Get the list of pods. |
| 3 | Get the list of Kubernetes services. |
Note that the service is not exposed to the outside world by default.
So unless you’ve used the quarkus.openshift.route.expose config property to expose the created service automatically you’ll need to expose the service manually.
oc expose svc/greeting (1)
oc get routes (2)
curl http://<route>/greeting (3)
| 1 | Expose the service. |
| 2 | Get the list of exposed routes. |
| 3 | Access your application. |
Configure the OpenShift Application Manually
If you need more control over the deployment configuration you can build the container image first and then configure the OpenShift application manually.
To trigger a container image build:
./mvnw clean package -Dquarkus.container-image.build=true
The build that will be performed is a s2i binary build.
The input of the build is the jar that has been built locally and the output of the build is an ImageStream that is configured to automatically trigger a deployment.
|
During the build you may find the
For more information, see deploying to kubernetes. |
Once the build is done we can create a new application from the relevant ImageStream.
oc get is (1)
oc new-app --name=greeting <project>/openshift-quickstart:1.0.0-SNAPSHOT (2)
oc get svc
oc expose svc/greeting (3)
oc get routes (4)
curl http://<route>/greeting (5)
| 1 | Lists the image streams created. The image stream of our application should be tagged as <project>/openshift-quickstart:1.0.0-SNAPSHOT. |
| 2 | Create a new application from the image source. |
| 3 | Expose the service to the outside world. |
| 4 | Get the list of exposed routes. |
| 5 | Access your application. |
After this setup the next time the container image is built a deployment to OpenShift is triggered automatically. In other words, you don’t need to repeat the above steps.
Non-S2I Builds
Out of the box the OpenShift extension is configured to use container-image-s2i. However, it’s still possible to use other container image extensions like:
When a non-s2i container image extension is used, an ImageStream is created that is pointing to an external dockerImageRepository. The image is built and pushed to the registry and the ImageStream populates the tags that are available in the dockerImageRepository.
To select which extension will be used for building the image:
quarkus.container-image.builder=docker
or
quarkus.container-image.builder=jib
Customizing
All available customization options are available in the OpenShift configuration options.
Some examples are provided in the sections below:
Exposing Routes
To expose a Route for the Quarkus application:
quarkus.openshift.route.expose=true
|
You don’t necessarily need to add this property in the
The same applies to all properties listed below. |
Environment variables
OpenShift provides multiple ways of defining environment variables:
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key/value pairs
-
import all values from a Secret or ConfigMap
-
interpolate a single value identified by a given field in a Secret or ConfigMap
-
interpolate a value from a field within the same resource
Environment variables from key/value pairs
To add a key/value pair as an environment variable in the generated resources:
quarkus.openshift.env.vars.my-env-var=foobar
The command above will add MY_ENV_VAR=foobar as an environment variable.
Please note that the key my-env-var will be converted to uppercase and dashes will be replaced by underscores resulting in MY_ENV_VAR.
Environment variables from Secret
To add all key/value pairs of Secret as environment variables just apply the following configuration, separating each Secret
to be used as source by a comma (,):
quarkus.openshift.env.secrets=my-secret,my-other-secret
which would generate the following in the container definition:
envFrom:
- secretRef:
name: my-secret
optional: false
- secretRef:
name: my-other-secret
optional: false
The following extracts a value identified by the keyName field from the my-secret Secret into a foo environment variable:
quarkus.openshift.env.mapping.foo.from-secret=my-secret
quarkus.openshift.env.mapping.foo.with-key=keyName
This would generate the following in the env section of your container:
- env:
- name: FOO
valueFrom:
secretKeyRef:
key: keyName
name: my-secret
optional: false
Environment variables from ConfigMap
To add all key/value pairs from ConfigMap as environment variables just apply the following configuration, separating each
ConfigMap to be used as source by a comma (,):
quarkus.openshift.env.configmaps=my-config-map,another-config-map
which would generate the following in the container definition:
envFrom:
- configMapRef:
name: my-config-map
optional: false
- configMapRef:
name: another-config-map
optional: false
The following extracts a value identified by the keyName field from the my-config-map ConfigMap into a foo
environment variable:
quarkus.openshift.env.mapping.foo.from-configmap=my-configmap
quarkus.openshift.env.mapping.foo.with-key=keyName
This would generate the following in the env section of your container:
- env:
- name: FOO
valueFrom:
configMapRefKey:
key: keyName
name: my-configmap
optional: false
Environment variables from fields
It’s also possible to use the value from another field to add a new environment variable by specifying the path of the field to be used as a source, as follows:
quarkus.openshift.env.fields.foo=metadata.name
Using Deployment instead of DeploymentConfig
Out of the box the extension will generate a DeploymentConfig resource. Often users, prefer to use Deployment as the main deployment resource, but still make use of OpenShift specific resources like Route, BuildConfig etc.
This feature is enabled by setting quarkus.openshift.deployment-kind to Deployment.
quarkus.openshift.deployment-kind=Deployment
Since Deployment is a Kubernetes resource and not OpenShift specific, it can’t possibly leverage ImageStream resources, as is the case with DeploymentConfig. This means that the image references need to include the container image registry that hosts the image.
When the image is built, using OpenShift builds (s2i binary and docker strategy) the OpenShift internal image registry image-registry.openshift-image-registry.svc:5000 will be used, unless another registry has been explicitly specified by the user. Please note, that in the internal registry the project/namespace name is added as part of the image repository: image-registry.openshift-image-registry.svc:5000/<project name>/<name>:<tag>, so users will need to make sure that the target project/namespace name is aligned with the quarkus.container-image.group.
quarkus.container-image.group=<project/namespace name>
Validation
A conflict between two definitions, e.g. mistakenly assigning both a value and specifying that a variable is derived from a field, will result in an error being thrown at build time so that you get the opportunity to fix the issue before you deploy your application to your cluster where it might be more difficult to diagnose the source of the issue.
Similarly, two redundant definitions, e.g. defining an injection from the same secret twice, will not cause an issue but will indeed report a warning to let you know that you might not have intended to duplicate that definition.
Backwards compatibility
Previous versions of the OpenShift extension supported a different syntax to add environment variables. The older syntax is still supported but is deprecated, and it’s advised that you migrate to the new syntax.
Old |
New |
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Plain variable |
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From field |
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All from |
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All from |
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From one |
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From one |
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If you redefine the same variable using the new syntax while keeping the old syntax, ONLY the new version will be kept, and a warning will be issued to alert you of the problem. For example, if you define both
quarkus.openshift.env-vars.my-env-var.value=foobar and quarkus.openshift.env.vars.my-env-var=newValue, the extension will only generate an environment variable MY_ENV_VAR=newValue and issue a warning.
|
Mounting volumes
The OpenShift extension allows the user to configure both volumes and mounts for the application.
Any volume can be mounted with a simple configuration:
quarkus.openshift.mounts.my-volume.path=/where/to/mount
This will add a mount to my pod for volume my-volume to path /where/to/mount
The volumes themselves can be configured as shown in the sections below:
Knative - OpenShift Serverless
OpenShift also provides the ability to use Knative via the OpenShift Serverless functionality.
The first order of business is to instruct Quarkus to generate Knative resources by setting:
quarkus.kubernetes.deployment-target=knative
In order to leverage OpenShift S2I to build the container image on the cluster and use the resulting container image for the Knative application, we need to set a couple of configuration properties:
# set the Kubernetes namespace which will be used to run the application
quarkus.container-image.group=geoand
# set the container image registry - this is the standard URL used to refer to the internal OpenShift registry
quarkus.container-image.registry=image-registry.openshift-image-registry.svc:5000
The application can then be deployed to OpenShift Serverless by enabling the standard quarkus.kubernetes.deploy=true property.
Configuration Reference
Configuration property fixed at build time - All other configuration properties are overridable at runtime
Type |
Default |
|
|---|---|---|
The OpenShift flavor / version to use. Older versions of OpenShift have minor differences in the labels and fields they support. This option allows users to have their manifests automatically aligned to the OpenShift 'flavor' they use. Environment variable: Show more |
|
|
The kind of the deployment resource to use. Supported values are 'Deployment' and 'DeploymentConfig' defaulting to the latter. Environment variable: Show more |
|
|
The name of the group this component belongs too Environment variable: Show more |
string |
|
The name of the application. This value will be used for naming Kubernetes resources like: 'Deployment', 'Service' and so on… Environment variable: Show more |
string |
|
The version of the application. Environment variable: Show more |
string |
|
The namespace the generated resources should belong to. If not value is set, then the 'namespace' field will not be added to the 'metadata' section of the generated manifests. This in turn means that when the manifests are applied to a cluster, the namespace will be resolved from the current Kubernetes context (see https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/#context for more details). Environment variable: Show more |
string |
|
Add the build timestamp to the Kubernetes annotations This is a very useful way to have manifests of successive builds of the same application differ - thus ensuring that Kubernetes will apply the updated resources Environment variable: Show more |
boolean |
|
Working directory Environment variable: Show more |
string |
|
list of string |
||
The arguments Environment variable: Show more |
list of string |
|
The service account Environment variable: Show more |
string |
|
The host under which the application is going to be exposed Environment variable: Show more |
string |
|
The number of desired pods Environment variable: Show more |
int |
|
The type of service that will be generated for the application Environment variable: Show more |
|
|
The nodePort to set when serviceType is set to nodePort Environment variable: Show more |
int |
|
Image pull policy Environment variable: Show more |
|
|
The image pull secret Environment variable: Show more |
list of string |
|
The http path to use for the probe For this to work, the container port also needs to be set Assuming the container port has been set (as per above comment), if execAction or tcpSocketAction are not set, an HTTP probe will be used automatically even if no path is set (which will result in the root path being used) Environment variable: Show more |
string |
|
The command to use for the probe. Environment variable: Show more |
string |
|
The tcp socket to use for the probe (the format is host:port). Environment variable: Show more |
string |
|
The amount of time to wait before starting to probe. Environment variable: Show more |
|
|
The period in which the action should be called. Environment variable: Show more |
|
|
The amount of time to wait for each action. Environment variable: Show more |
|
|
The success threshold to use. Environment variable: Show more |
int |
|
The failure threshold to use. Environment variable: Show more |
int |
|
The http path to use for the probe For this to work, the container port also needs to be set Assuming the container port has been set (as per above comment), if execAction or tcpSocketAction are not set, an HTTP probe will be used automatically even if no path is set (which will result in the root path being used) Environment variable: Show more |
string |
|
The command to use for the probe. Environment variable: Show more |
string |
|
The tcp socket to use for the probe (the format is host:port). Environment variable: Show more |
string |
|
The amount of time to wait before starting to probe. Environment variable: Show more |
|
|
The period in which the action should be called. Environment variable: Show more |
|
|
The amount of time to wait for each action. Environment variable: Show more |
|
|
The success threshold to use. Environment variable: Show more |
int |
|
The failure threshold to use. Environment variable: Show more |
int |
|
When true (the default), emit a set of annotations to identify services that should be scraped by prometheus for metrics. In configurations that use the Prometheus operator with ServiceMonitor, annotations may not be necessary. Environment variable: Show more |
boolean |
|
Define the annotation prefix used for scrape values, this value will be used as the base for other annotation name defaults. Altering the base for generated annotations can make it easier to define re-labeling rules and avoid unexpected knock-on effects. The default value is Environment variable: Show more |
string |
|
Define the annotation used to indicate services that should be scraped. By default, Environment variable: Show more |
string |
|
Define the annotation used to indicate the path to scrape. By default, Environment variable: Show more |
string |
|
Define the annotation used to indicate the port to scrape. By default, Environment variable: Show more |
string |
|
Define the annotation used to indicate the scheme to use for scraping By default, Environment variable: Show more |
string |
|
EmptyDir volumes Environment variable: Show more |
list of string |
|
CPU Requirements Environment variable: Show more |
string |
|
Memory Requirements Environment variable: Show more |
string |
|
CPU Requirements Environment variable: Show more |
string |
|
Memory Requirements Environment variable: Show more |
string |
|
If set, it will change the name of the container according to the configuration Environment variable: Show more |
string |
|
If true, an Openshift Route will be created Environment variable: Show more |
boolean |
|
If true, the service will be exposed Environment variable: Show more |
boolean |
|
The host under which the application is going to be exposed Environment variable: Show more |
string |
|
If true, the 'app.kubernetes.io/version' label will be part of the selectors of Service and DeploymentConfig Environment variable: Show more |
boolean |
|
The optional list of Secret names to load environment variables from. Environment variable: Show more |
list of string |
|
The optional list of ConfigMap names to load environment variables from. Environment variable: Show more |
list of string |
|
If set, the secret will mounted to the application container and its contents will be used for application configuration. Environment variable: Show more |
string |
|
If set, the config amp will be mounted to the application container and its contents will be used for application configuration. Environment variable: Show more |
string |
|
The SELinux level label that applies to the container. Environment variable: Show more |
string |
|
The SELinux role label that applies to the container. Environment variable: Show more |
string |
|
The SELinux type label that applies to the container. Environment variable: Show more |
string |
|
The SELinux user label that applies to the container. Environment variable: Show more |
string |
|
The name of the GMSA credential spec to use. Environment variable: Show more |
string |
|
GMSACredentialSpec is where the GMSA admission webhook (https://github.com/kubernetes-sigs/windows-gmsa) inlines the contents of the GMSA credential spec named by the GMSACredentialSpecName field. Environment variable: Show more |
string |
|
The UserName in Windows to run the entrypoint of the container process. Environment variable: Show more |
string |
|
HostProcess determines if a container should be run as a 'Host Process' container. Environment variable: Show more |
boolean |
|
The UID to run the entrypoint of the container process. Environment variable: Show more |
long |
|
The GID to run the entrypoint of the container process. Environment variable: Show more |
long |
|
Indicates that the container must run as a non-root user. Environment variable: Show more |
boolean |
|
A list of groups applied to the first process run in each container, in addition to the container’s primary GID. If unspecified, no groups will be added to any container. Environment variable: Show more |
list of long |
|
A special supplemental group that applies to all containers in a pod. Environment variable: Show more |
long |
|
Sysctls hold a list of namespaced sysctls used for the pod. Environment variable: Show more |
string |
|
It holds policies that will be used for applying fsGroup to a volume when volume is mounted. Values: OnRootMismatch, Always Environment variable: Show more |
|
|
If true, the debug mode in pods will be enabled. Environment variable: Show more |
boolean |
|
The transport to use. Environment variable: Show more |
string |
|
If enabled, it means the JVM will wait for the debugger to attach before executing the main class. If false, the JVM will immediately execute the main class, while listening for the debugger connection. Environment variable: Show more |
string |
|
It specifies the address at which the debug socket will listen. Environment variable: Show more |
int |
|
Custom labels to add to all resources Environment variable: Show more |
|
|
Custom annotations to add to all resources Environment variable: Show more |
|
|
The port number. Refers to the container port. Environment variable: Show more |
int |
|
The host port. Environment variable: Show more |
int |
|
The application path (refers to web application path). Environment variable: Show more |
string |
|
The protocol. Environment variable: Show more |
|
|
Environment variable: |
int |
|
The name of the volumeName to mount. Environment variable: Show more |
string |
|
The path to mount. Environment variable: Show more |
string |
|
Path within the volumeName from which the container’s volumeName should be mounted. Environment variable: Show more |
string |
|
ReadOnly Environment variable: Show more |
boolean |
|
The name of the secret to mount. Environment variable: Show more |
string |
required |
Default mode. When specifying an octal number, leading zero must be present. Environment variable: Show more |
string |
|
The path where the file will be mounted. Environment variable: Show more |
string |
required |
It must be a value between 0000 and 0777. If not specified, the volume defaultMode will be used. Environment variable: Show more |
int |
|
Optional Environment variable: Show more |
boolean |
|
The name of the ConfigMap to mount. Environment variable: Show more |
string |
required |
Default mode. When specifying an octal number, leading zero must be present. Environment variable: Show more |
string |
|
The path where the file will be mounted. Environment variable: Show more |
string |
required |
It must be a value between 0000 and 0777. If not specified, the volume defaultMode will be used. Environment variable: Show more |
int |
|
Optional Environment variable: Show more |
boolean |
|
Git repository URL. Environment variable: Show more |
string |
required |
The directory of the repository to mount. Environment variable: Show more |
string |
|
The commit hash to use. Environment variable: Show more |
string |
|
The name of the claim to mount. Environment variable: Show more |
string |
required |
Default mode. When specifying an octal number, leading zero must be present. Environment variable: Show more |
string |
|
Optional Environment variable: Show more |
boolean |
|
The name of the disk to mount. Environment variable: Show more |
string |
required |
The partition. Environment variable: Show more |
int |
|
Filesystem type. Environment variable: Show more |
string |
|
Whether the volumeName is read only or not. Environment variable: Show more |
boolean |
|
The share name. Environment variable: Show more |
string |
required |
The secret name. Environment variable: Show more |
string |
required |
Whether the volumeName is read only or not. Environment variable: Show more |
boolean |
|
The name of the disk to mount. Environment variable: Show more |
string |
required |
The URI of the vhd blob object OR the resourceID of an Azure managed data disk if Kind is Managed Environment variable: Show more |
string |
required |
Kind of disk. Environment variable: Show more |
|
|
Disk caching mode. Environment variable: Show more |
|
|
File system type. Environment variable: Show more |
string |
|
Whether the volumeName is read only or not. Environment variable: Show more |
boolean |
|
The container image. Environment variable: Show more |
string |
|
Working directory. Environment variable: Show more |
string |
|
The commands Environment variable: Show more |
list of string |
|
The arguments Environment variable: Show more |
list of string |
|
The service account. Environment variable: Show more |
string |
|
The host under which the application is going to be exposed. Environment variable: Show more |
string |
|
The port number. Refers to the container port. Environment variable: Show more |
int |
|
The host port. Environment variable: Show more |
int |
|
The application path (refers to web application path). Environment variable: Show more |
string |
|
The protocol. Environment variable: Show more |
|
|
Environment variable: |
int |
|
Image pull policy. Environment variable: Show more |
|
|
The image pull secret Environment variable: Show more |
list of string |
|
The http path to use for the probe For this to work, the container port also needs to be set Assuming the container port has been set (as per above comment), if execAction or tcpSocketAction are not set, an HTTP probe will be used automatically even if no path is set (which will result in the root path being used) Environment variable: Show more |
string |
|
The command to use for the probe. Environment variable: Show more |
string |
|
The tcp socket to use for the probe (the format is host:port). Environment variable: Show more |
string |
|
The amount of time to wait before starting to probe. Environment variable: Show more |
|
|
The period in which the action should be called. Environment variable: Show more |
|
|
The amount of time to wait for each action. Environment variable: Show more |
|
|
The success threshold to use. Environment variable: Show more |
int |
|
The failure threshold to use. Environment variable: Show more |
int |
|
The http path to use for the probe For this to work, the container port also needs to be set Assuming the container port has been set (as per above comment), if execAction or tcpSocketAction are not set, an HTTP probe will be used automatically even if no path is set (which will result in the root path being used) Environment variable: Show more |
string |
|
The command to use for the probe. Environment variable: Show more |
string |
|
The tcp socket to use for the probe (the format is host:port). Environment variable: Show more |
string |
|
The amount of time to wait before starting to probe. Environment variable: Show more |
|
|
The period in which the action should be called. Environment variable: Show more |
|
|
The amount of time to wait for each action. Environment variable: Show more |
|
|
The success threshold to use. Environment variable: Show more |
int |
|
The failure threshold to use. Environment variable: Show more |
int |
|
The name of the volumeName to mount. Environment variable: Show more |
string |
|
The path to mount. Environment variable: Show more |
string |
|
Path within the volumeName from which the container’s volumeName should be mounted. Environment variable: Show more |
string |
|
ReadOnly Environment variable: Show more |
boolean |
|
CPU Requirements Environment variable: Show more |
string |
|
Memory Requirements Environment variable: Show more |
string |
|
CPU Requirements Environment variable: Show more |
string |
|
Memory Requirements Environment variable: Show more |
string |
|
The optional list of Secret names to load environment variables from. Environment variable: Show more |
list of string |
|
The optional list of ConfigMap names to load environment variables from. Environment variable: Show more |
list of string |
|
The map associating environment variable names to their associated field references they take their value from. Environment variable: Show more |
|
|
The map associating environment name to its associated value. Environment variable: Show more |
|
|
The optional name of the Secret from which a value is to be extracted. Mutually exclusive with Environment variable: Show more |
string |
|
The optional name of the ConfigMap from which a value is to be extracted. Mutually exclusive with Environment variable: Show more |
string |
|
The key identifying the field from which the value is extracted. Environment variable: Show more |
string |
required |
The container image. Environment variable: Show more |
string |
|
Working directory. Environment variable: Show more |
string |
|
The commands Environment variable: Show more |
list of string |
|
The arguments Environment variable: Show more |
list of string |
|
The service account. Environment variable: Show more |
string |
|
The host under which the application is going to be exposed. Environment variable: Show more |
string |
|
The port number. Refers to the container port. Environment variable: Show more |
int |
|
The host port. Environment variable: Show more |
int |
|
The application path (refers to web application path). Environment variable: Show more |
string |
|
The protocol. Environment variable: Show more |
|
|
Environment variable: |
int |
|
Image pull policy. Environment variable: Show more |
|
|
The image pull secret Environment variable: Show more |
list of string |
|
The http path to use for the probe For this to work, the container port also needs to be set Assuming the container port has been set (as per above comment), if execAction or tcpSocketAction are not set, an HTTP probe will be used automatically even if no path is set (which will result in the root path being used) Environment variable: Show more |
string |
|
The command to use for the probe. Environment variable: Show more |
string |
|
The tcp socket to use for the probe (the format is host:port). Environment variable: Show more |
string |
|
The amount of time to wait before starting to probe. Environment variable: Show more |
|
|
The period in which the action should be called. Environment variable: Show more |
|
|
The amount of time to wait for each action. Environment variable: Show more |
|
|
The success threshold to use. Environment variable: Show more |
int |
|
The failure threshold to use. Environment variable: Show more |
int |
|
The http path to use for the probe For this to work, the container port also needs to be set Assuming the container port has been set (as per above comment), if execAction or tcpSocketAction are not set, an HTTP probe will be used automatically even if no path is set (which will result in the root path being used) Environment variable: Show more |
string |
|
The command to use for the probe. Environment variable: Show more |
string |
|
The tcp socket to use for the probe (the format is host:port). Environment variable: Show more |
string |
|
The amount of time to wait before starting to probe. Environment variable: Show more |
|
|
The period in which the action should be called. Environment variable: Show more |
|
|
The amount of time to wait for each action. Environment variable: Show more |
|
|
The success threshold to use. Environment variable: Show more |
int |
|
The failure threshold to use. Environment variable: Show more |
int |
|
The name of the volumeName to mount. Environment variable: Show more |
string |
|
The path to mount. Environment variable: Show more |
string |
|
Path within the volumeName from which the container’s volumeName should be mounted. Environment variable: Show more |
string |
|
ReadOnly Environment variable: Show more |
boolean |
|
CPU Requirements Environment variable: Show more |
string |
|
Memory Requirements Environment variable: Show more |
string |
|
CPU Requirements Environment variable: Show more |
string |
|
Memory Requirements Environment variable: Show more |
string |
|
The optional list of Secret names to load environment variables from. Environment variable: Show more |
list of string |
|
The optional list of ConfigMap names to load environment variables from. Environment variable: Show more |
list of string |
|
The map associating environment variable names to their associated field references they take their value from. Environment variable: Show more |
|
|
The map associating environment name to its associated value. Environment variable: Show more |
|
|
The optional name of the Secret from which a value is to be extracted. Mutually exclusive with Environment variable: Show more |
string |
|
The optional name of the ConfigMap from which a value is to be extracted. Mutually exclusive with Environment variable: Show more |
string |
|
The key identifying the field from which the value is extracted. Environment variable: Show more |
string |
required |
The ip address Environment variable: Show more |
string |
|
The hostnames to resolve to the ip Environment variable: Show more |
list of string |
|
Custom annotations to add to exposition (route or ingress) resources Environment variable: Show more |
|
|
The map associating environment variable names to their associated field references they take their value from. Environment variable: Show more |
|
|
The map associating environment name to its associated value. Environment variable: Show more |
|
|
The optional name of the Secret from which a value is to be extracted. Mutually exclusive with Environment variable: Show more |
string |
|
The optional name of the ConfigMap from which a value is to be extracted. Mutually exclusive with Environment variable: Show more |
string |
|
The key identifying the field from which the value is extracted. Environment variable: Show more |
string |
required |
|
About the Duration format
The format for durations uses the standard You can also provide duration values starting with a number.
In this case, if the value consists only of a number, the converter treats the value as seconds.
Otherwise, |