Install KAAP Operator Helm chart

KAAP Operator is installed using Helm. You can install just the operator and the PulsarCluster CRDs, or you can install Kaap Stack, which includes the operator, CRDs, and the Prometheus monitoring stack.

Install KAAP Operator

Install the DataStax Helm repository:

helm repo add kaap https://datastax.github.io/kaap
helm repo update

The KAAP Operator Helm chart is available for download (here.

Install the KAAP operator Helm chart:

helm install kaap kaap/kaap
...
NAME: kaap
LAST DEPLOYED: Wed Jun 28 11:37:45 2023
NAMESPACE: pulsar-cluster
STATUS: deployed
REVISION: 1
TEST SUITE: None

Ensure KAAP operator is up and running:

Kubectl
Result

kubectl get deployment

NAME              READY   UP-TO-DATE   AVAILABLE   AGE
kaap   1/1     1            1           13m

Describe the deployment:

Kubectl
Result

kubectl describe deployment kaap

Name:                   kaap
Namespace:              pulsar-cluster
CreationTimestamp:      Wed, 28 Jun 2023 11:37:49 -0400
Labels:                 app.kubernetes.io/managed-by=Helm
                        app.kubernetes.io/name=kaap
                        helm.sh/chart=kaap-0.1.0
Annotations:            deployment.kubernetes.io/revision: 1
                        meta.helm.sh/release-name: kaap
                        meta.helm.sh/release-namespace: pulsar-cluster
                        prometheus.io/path: /q/metrics
                        prometheus.io/port: 8080
                        prometheus.io/scheme: http
                        prometheus.io/scrape: true
Selector:               app.kubernetes.io/name=kaap
Replicas:               1 desired | 1 updated | 1 total | 1 available | 0 unavailable
StrategyType:           RollingUpdate
MinReadySeconds:        0
RollingUpdateStrategy:  25% max unavailable, 25% max surge
Pod Template:
  Labels:           app.kubernetes.io/name=kaap
  Annotations:      checksum/config: bf2ad27453a7deeb74c2e0b177154649cb6cf292a31b80855c92d28f6a141134
                    prometheus.io/path: /q/metrics
                    prometheus.io/port: 8080
                    prometheus.io/scheme: http
                    prometheus.io/scrape: true
  Service Account:  kaap
  Containers:
   kaap:
    Image:      datastax/kaap:latest
    Port:       8080/TCP
    Host Port:  0/TCP
    Liveness:   http-get http://:8080/q/health/live delay=0s timeout=10s period=30s #success=1 #failure=3
    Readiness:  http-get http://:8080/q/health/ready delay=0s timeout=10s period=30s #success=1 #failure=3
    Environment Variables from:
      kaap  ConfigMap  Optional: false
    Environment:
      KUBERNETES_NAMESPACE:   (v1:metadata.namespace)
    Mounts:                  <none>
  Volumes:                   <none>
Conditions:
  Type           Status  Reason
  ----           ------  ------
  Available      True    MinimumReplicasAvailable
  Progressing    True    NewReplicaSetAvailable
OldReplicaSets:  <none>
NewReplicaSet:   kaap-76dfd8ddf9 (1/1 replicas created)
Events:
  Type    Reason             Age   From                   Message
  ----    ------             ----  ----                   -------
  Normal  ScalingReplicaSet  2m5s  deployment-controller  Scaled up replica set kaap-76dfd8ddf9 to 1

You’ve now installed KAAP.

By default, when KAAP is installed, the PulsarCluster CRDs are also created. This setting is defined in the Pulsar operator values.yaml file as crd: create: true.

To see the available CRDs:

Kubectl
Result

kubectl get crds | grep kaap

autorecoveries.kaap.oss.datastax.com           2023-05-12T16:35:59Z
bastions.kaap.oss.datastax.com                 2023-05-12T16:36:00Z
bookkeepers.kaap.oss.datastax.com              2023-05-12T16:36:00Z
brokers.kaap.oss.datastax.com                  2023-05-12T16:36:01Z
functionsworkers.kaap.oss.datastax.com         2023-05-12T16:36:01Z
proxies.kaap.oss.datastax.com                  2023-05-12T16:36:02Z
pulsarclusters.kaap.oss.datastax.com           2023-05-12T16:36:04Z
zookeepers.kaap.oss.datastax.com               2023-05-12T16:36:06Z

Uninstall

To uninstall the KAAP Operator:

Helm
Result

helm uninstall kaap

release "kaap" uninstalled

What’s next?

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