Chapter 5. Installing Knative Eventing

Procedure

1. In the Administrator perspective of the OpenShift Container Platform web console, navigate to Operators Installed Operators.
2. Check that the Project dropdown at the top of the page is set to Project: knative-eventing.
3. Click Knative Eventing in the list of Provided APIs for the OpenShift Serverless Operator to go to the Knative Eventing tab.
4. Click Create Knative Eventing.

5. In the Create Knative Eventing page, you can choose to configure the KnativeEventing object by using either the default form provided, or by editing the YAML.

   • Using the form is recommended for simpler configurations that do not require full control of KnativeEventing object creation.

     Optional. If you are configuring the KnativeEventing object using the form, make any changes that you want to implement for your Knative Eventing deployment.

6. Click Create.

   • Editing the YAML is recommended for more complex configurations that require full control of KnativeEventing object creation. You can access the YAML by clicking the edit YAML link in the top right of the Create Knative Eventing page.

     Optional. If you are configuring the KnativeEventing object by editing the YAML, make any changes to the YAML that you want to implement for your Knative Eventing deployment.

7. Click Create.
8. After you have installed Knative Eventing, the KnativeEventing object is created, and you are automatically directed to the Knative Eventing tab. You will see the knative-eventing custom resource in the list of resources.

Verification

1. Click on the knative-eventing custom resource in the Knative Eventing tab.

2. You are automatically directed to the Knative Eventing Overview page.

   
3. Scroll down to look at the list of Conditions.

4. You should see a list of conditions with a status of True, as shown in the example image.

   
   Note

   It may take a few seconds for the Knative Eventing resources to be created. You can check their status in the Resources tab.

5. If the conditions have a status of Unknown or False, wait a few moments and then check again after you have confirmed that the resources have been created.

Procedure

1. Create a file named eventing.yaml.

2. Copy the following sample YAML into eventing.yaml:

   apiVersion: operator.knative.dev/v1beta1
   kind: KnativeEventing
   metadata:
       name: knative-eventing
       namespace: knative-eventing

3. Optional. Make any changes to the YAML that you want to implement for your Knative Eventing deployment.

4. Apply the eventing.yaml file by entering:

   $ oc apply -f eventing.yaml

Verification

1. Verify the installation is complete by entering the following command and observing the output:

   $ oc get knativeeventing.operator.knative.dev/knative-eventing \
     -n knative-eventing \
     --template='{{range .status.conditions}}{{printf "%s=%s\n" .type .status}}{{end}}'

   Example output

   InstallSucceeded=True
   Ready=True

   Note

   It may take a few seconds for the Knative Eventing resources to be created.

2. If the conditions have a status of Unknown or False, wait a few moments and then check again after you have confirmed that the resources have been created.

3. Check that the Knative Eventing resources have been created by entering:

   $ oc get pods -n knative-eventing

   Example output

   NAME                                   READY   STATUS    RESTARTS   AGE
   broker-controller-58765d9d49-g9zp6     1/1     Running   0          7m21s
   eventing-controller-65fdd66b54-jw7bh   1/1     Running   0          7m31s
   eventing-webhook-57fd74b5bd-kvhlz      1/1     Running   0          7m31s
   imc-controller-5b75d458fc-ptvm2        1/1     Running   0          7m19s
   imc-dispatcher-64f6d5fccb-kkc4c        1/1     Running   0          7m18s

Verification

1. Click on the knative-kafka resource in the Knative Kafka tab. You are automatically directed to the Knative Kafka Overview page.

2. View the list of Conditions for the resource and confirm that they have a status of True.

   

   If the conditions have a status of Unknown or False, wait a few moments to refresh the page.

3. Check that the Knative broker for Apache Kafka resources have been created:

   $ oc get pods -n knative-eventing

   Example output

   NAME                                        READY   STATUS    RESTARTS   AGE
   kafka-broker-dispatcher-7769fbbcbb-xgffn    2/2     Running   0          44s
   kafka-broker-receiver-5fb56f7656-fhq8d      2/2     Running   0          44s
   kafka-channel-dispatcher-84fd6cb7f9-k2tjv   2/2     Running   0          44s
   kafka-channel-receiver-9b7f795d5-c76xr      2/2     Running   0          44s
   kafka-controller-6f95659bf6-trd6r           2/2     Running   0          44s
   kafka-source-dispatcher-6bf98bdfff-8bcsn    2/2     Running   0          44s
   kafka-webhook-eventing-68dc95d54b-825xs     2/2     Running   0          44s