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[incubator/kubeless] Adding Kafka Trigger (#5961)
* Initial helm configuration with kafka trigger * Fixing formatting * Incrementing version * Moving kafka controller to it's own cluster role * Updating README for clarity * Adding role binding
This commit is contained in:
Alex Alvarez
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k8s-ci-robot
k8s-ci-robot
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@@ -1,5 +1,5 @@
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name: kubeless
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version: 1.0.3
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version: 1.0.4
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appVersion: v1.0.0-alpha.3
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description: Kubeless is a Kubernetes-native serverless framework. It runs on top of your Kubernetes cluster and allows you to deploy small unit of code without having to build container images.
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icon: https://cloud.githubusercontent.com/assets/4056725/25480209/1d5bf83c-2b48-11e7-8db8-bcd650f31297.png
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@@ -43,37 +43,48 @@ $ helm delete my-release
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The command removes all the Kubernetes components associated with the chart and deletes the release.
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## Kafka Trigger
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Kubeless supports triggering functions via Kafka events. More info here: https://kubeless.io/docs/use-existing-kafka/.
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An existing Kafka cluster needs to be accessible to kubeless -- if you like, you may look into setting Kafka up via the [Kafka chart](https://github.com/kubernetes/charts/tree/master/incubator/kafka). Once Kafka is running,
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to enable the Kafka trigger you must congifure the following values: `rbac.create: true`, `kafkaTrigger.enabled: true`, `kafkaTrigger.env.kafkaBrokers: <your_kafka_brokers>`.
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## Configuration
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The following table lists the configurable parameters of the Kubeless chart and their default values.
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| Parameter | Description | Default |
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|------------------------------------------|--------------------------------------------|---------------------------------------|
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| `config.builderImage` | Function builder image | `kubeless/function-image-builder` |
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| `config.builderImagePullSecret` | Secret to pull builder image | "" |
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| `config.builderImage` | Provision image | `kubeless/unzip` |
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| `config.builderImagePullSecret` | Secret to pull provision image | "" |
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| `config.deploymentTemplate` | Deployment template for functions | `{}` |
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| `config.enableBuildStep` | Enable builder functionality | `false` |
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| `config.functionRegistryTLSVerify` | Enable TLS verification for image registry | `{}` |
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| `config.runtimeImages` | Runtimes available | python, nodejs, ruby, php and go |
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| `controller.deployment.image.repository` | Controller image | `bitnami/kubeless-controller-manager` |
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| `controller.deployment.image.pullPolicy` | Controller image pull policy | `IfNotPresent` |
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| `controller.deployment.replicaCount` | Number of replicas | `1` |
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| `ui.enabled` | Kubeless UI component | `false` |
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| `ui.deployment.ui.image.repository` | Kubeless UI image | `bitnami/kubeless-ui` |
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| `ui.deployment.ui.image.pullPolicy` | Kubeless UI image pull policy | `IfNotPresent` |
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| `ui.deployment.proxy.image.repository` | Proxy image | `kelseyhightower/kubectl` |
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| `ui.deployment.proxy.image.pullPolicy` | Proxy image pull policy | `IfNotPresent` |
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| `ui.deployment.replicaCount` | Number of replicas | `1` |
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| `ui.service.name` | Service name | `ui-port` |
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| `ui.service.type` | Kubernetes service name | `NodePort` |
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| `ui.service.externalPort` | Service external port | `3000` |
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| `ui.ingress.enabled` | Kubeless UI ingress switch | `false` |
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| `ui.ingress.annotations` | Kubeless UI ingress annotations | `{}` |
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| `ui.ingress.path` | Kubeless UI ingress path | `{}` |
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| `ui.ingress.hosts` | Kubeless UI ingress hosts | `[chart-example.local]` |
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| `ui.ingress.tls` | Kubeless UI ingress TLS | `[]` |
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| Parameter | Description | Default |
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|------------------------------------------------|--------------------------------------------|---------------------------------------|
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| `config.builderImage` | Function builder image | `kubeless/function-image-builder` |
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| `config.builderImagePullSecret` | Secret to pull builder image | "" |
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| `config.builderImage` | Provision image | `kubeless/unzip` |
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| `config.builderImagePullSecret` | Secret to pull provision image | "" |
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| `config.deploymentTemplate` | Deployment template for functions | `{}` |
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| `config.enableBuildStep` | Enable builder functionality | `false` |
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| `config.functionRegistryTLSVerify` | Enable TLS verification for image registry | `{}` |
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| `config.runtimeImages` | Runtimes available | python, nodejs, ruby, php and go |
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| `controller.deployment.image.repository` | Controller image | `bitnami/kubeless-controller-manager` |
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| `controller.deployment.image.pullPolicy` | Controller image pull policy | `IfNotPresent` |
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| `controller.deployment.replicaCount` | Number of replicas | `1` |
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| `ui.enabled` | Kubeless UI component | `false` |
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| `ui.deployment.ui.image.repository` | Kubeless UI image | `bitnami/kubeless-ui` |
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| `ui.deployment.ui.image.pullPolicy` | Kubeless UI image pull policy | `IfNotPresent` |
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| `ui.deployment.proxy.image.repository` | Proxy image | `kelseyhightower/kubectl` |
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| `ui.deployment.proxy.image.pullPolicy` | Proxy image pull policy | `IfNotPresent` |
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| `ui.deployment.replicaCount` | Number of replicas | `1` |
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| `ui.service.name` | Service name | `ui-port` |
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| `ui.service.type` | Kubernetes service name | `NodePort` |
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| `ui.service.externalPort` | Service external port | `3000` |
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| `ui.ingress.enabled` | Kubeless UI ingress switch | `false` |
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| `ui.ingress.annotations` | Kubeless UI ingress annotations | `{}` |
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| `ui.ingress.path` | Kubeless UI ingress path | `{}` |
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| `ui.ingress.hosts` | Kubeless UI ingress hosts | `[chart-example.local]` |
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| `ui.ingress.tls` | Kubeless UI ingress TLS | `[]` |
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| `kafkaTrigger.enabled` | Kubeless Kafka Trigger | `false` |
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| `kafkaTrigger.env.kafkaBrokers` | Kafka Brokers Environment Variable | `localhost:9092` |
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| `kafkaTrigger.deployment.ui.image.repository` | Kubeless Kafka Trigger image | `bitnami/kubeless-ui` |
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| `kafkaTrigger.deployment.ui.image.pullPolicy` | Kubeless Kafka Trigger image pull policy | `IfNotPresent` |
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| `kafkaTrigger.deployment.ui.image.tag` | Kubeless Kafka Trigger image tag | `v1.0.0-alpha.3` |
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Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
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@@ -0,0 +1,12 @@
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRoleBinding
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metadata:
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name: kafka-controller-deployer
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: kafka-controller-deployer
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subjects:
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- kind: ServiceAccount
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name: controller-acct
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namespace: {{ .Release.Namespace }}
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@@ -0,0 +1,26 @@
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{{- if .Values.kafkaTrigger.enabled }}
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRole
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metadata:
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name: kafka-controller-deployer
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rules:
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- apiGroups:
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- ""
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resources:
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- services
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- configmaps
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verbs:
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- get
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- list
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- apiGroups:
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- kubeless.io
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resources:
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- functions
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- kafkatriggers
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verbs:
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- get
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- list
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- watch
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- update
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- delete
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{{- end }}
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@@ -0,0 +1,26 @@
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{{- if .Values.kafkaTrigger.enabled }}
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apiVersion: apps/v1beta1
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kind: Deployment
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metadata:
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labels:
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kubeless: kafka-trigger-controller
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name: kafka-trigger-controller
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namespace: {{ .Release.Namespace }}
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spec:
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selector:
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matchLabels:
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kubeless: kafka-trigger-controller
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template:
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metadata:
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labels:
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kubeless: kafka-trigger-controller
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spec:
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containers:
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- image: "{{ .Values.kafkaTrigger.deployment.image.repository }}:{{ .Values.kafkaTrigger.deployment.image.tag }}"
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imagePullPolicy: {{ .Values.kafkaTrigger.deployment.image.pullPolicy }}
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name: kafka-trigger-controller
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env:
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- name: KAFKA_BROKERS
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value: {{ .Values.kafkaTrigger.env.kafkaBrokers }}
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serviceAccountName: controller-acct
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{{- end }}
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@@ -0,0 +1,15 @@
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{{- if .Values.kafkaTrigger.enabled }}
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apiVersion: apiextensions.k8s.io/v1beta1
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description: CRD object for Kafka trigger type
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kind: CustomResourceDefinition
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metadata:
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name: kafkatriggers.kubeless.io
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spec:
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group: kubeless.io
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names:
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kind: KafkaTrigger
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plural: kafkatriggers
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singular: kafkatrigger
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scope: Namespaced
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version: v1beta1
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{{- end }}
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@@ -185,3 +185,13 @@ ui:
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# - secretName: chart-example-tls
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# hosts:
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# - chart-example.local
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## Kafka Trigger configuration Configuration
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kafkaTrigger:
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enabled: false
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deployment:
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image:
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repository: bitnami/kafka-trigger-controller
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tag: v1.0.0-alpha.3
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pullPolicy: IfNotPresent
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kafkaBrokers: localhost:9092
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