Install by using the Knative Operator CLI Plugin

    Before installing Knative, you must meet the following prerequisites:

    • For prototyping purposes, Knative works on most local deployments of Kubernetes. For example, you can use a local, one-node cluster that has 3 CPUs and 4 GB of memory.

      Tip

      You can install a local distribution of Knative for development purposes using the

    • For production purposes, it is recommended that:

      • If you have only one node in your cluster, you need at least 6 CPUs, 6 GB of memory, and 30 GB of disk storage.
      • If you have multiple nodes in your cluster, for each node you need at least 2 CPUs, 4 GB of memory, and 20 GB of disk storage.
      • You have a cluster that uses Kubernetes v1.23 or newer.
      • You have installed the kubectl CLI.
      • Your Kubernetes cluster must have access to the internet, because Kubernetes needs to be able to fetch images. To pull from a private registry, see .

    Caution

    The system requirements provided are recommendations only. The requirements for your installation might vary, depending on whether you use optional components, such as a networking layer.

    Install the Knative Operator CLI Plugin

    Before you install the Knative Operator CLI Plugin, first install the .

    MacOSLinux

    1. Download the binary for your system from the release page.

    2. Download the binary kn-operator-linux-amd64 for your system from the .

    3. Rename the binary to kn-operator:

      1. mv kn-operator-linux-amd64 kn-operator

    Make the plugin executable by running the command:

    1. chmod +x kn-operator

    Create the directory for the kn plugin:

    1. mkdir -p ~/.config/kn/plugins

    Move the file to a plugin directory for kn:

    1. cp kn-operator ~/.config/kn/plugins

    You should see more information about how to use this CLI plugin.

    Install the Knative Operator

    You can install Knative Operator of any specific version under any specific namespace. By default, the namespace is default, and the version is the latest.

    To install the latest version of Knative Operator, run:

    1. kn operator install

    To install Knative Operator under a certain namespace, e.g. knative-operator, run:

    1. kn operator install -n knative-operator

    To install Knative Operator of a specific version, e.g. 1.7.1, run:

    You can install Knative Serving of any specific version under any specific namespace. By default, the namespace is knative-serving, and the version is the latest.

    To install the latest version of Knative Serving, run:

    1. kn operator install --component serving

    To install Knative Serving under a certain namespace, e.g. knative-serving, run:

    1. kn operator install --component serving -n knative-serving

    To install Knative Operator of a specific version, e.g. 1.7, run:

    1. kn operator install --component serving -n knative-serving -v "1.7"

    To install the ingress plugin, e.g Kourier, together with the install command, run:

    1. kn operator install --component serving -n knative-serving -v "1.7" --kourier

    If you do not specify the ingress plugin, istio is used as the default. However, you need to make sure you install first.

    You can configure the network layer option via the Operator CLI Plugin. Click on each of the following tabs to see how you can configure Knative Serving with different ingresses:

    Kourier (Choose this if you are not sure)Istio (default)Contour

    The following steps install Kourier and enable its Knative integration:

    1. To configure Knative Serving to use Kourier, run the command as follows:

      1. kn operator enable ingress --kourier -n knative-serving

    The following steps install Istio to enable its Knative integration:

    2. To configure Knative Serving to use Istio, run the command as follows:

      The following steps install Contour and enable its Knative integration:

      1. Install a properly configured Contour:

        1. kubectl apply --filename https://github.com/knative/net-contour/releases/download/knative-v1.8.0/contour.yaml

      2. To configure Knative Serving to use Contour, run the command as follows:

      Installing the Knative Eventing component

      You can install Knative Eventing of any specific version under any specific namespace. By default, the namespace is knative-eventing, and the version is the latest.

      To install the latest version of Knative Eventing, run:

      1. kn operator install --component eventing

      To install Knative Eventing under a certain namespace, e.g. knative-eventing, run:

      1. kn operator install --component eventing -n knative-eventing

      To install Knative Operator of a specific version, e.g. 1.7, run:

      1. kn operator install --component eventing -n knative-eventing -v "1.7"

      Installing Knative Eventing with event sources

      Knative Operator can configure the Knative Eventing component with different event sources. Click on each of the following tabs to see how you can configure Knative Eventing with different event sources:

      CephGitHubGitLabApache KafkaRabbitMQRedis

      1. To install the eventing source Ceph, run the following command:

        1. kn operator enable eventing-source --ceph --namespace knative-eventing

      2. To install the eventing source Github, run the following command:

        1. kn operator enable eventing-source --github --namespace knative-eventing

      3. To install the eventing source Gitlab, run the following command:

        1. kn operator enable eventing-source --gitlab --namespace knative-eventing

      4. To install the eventing source Kafka, run the following command:

        1. kn operator enable eventing-source --kafka --namespace knative-eventing

      5. To install the eventing source RabbitMQ, run the following command:

      6. To install the eventing source Redis, run the following command: