Quick Start

The Quick Start assumes that you have already installed a Kubernetes cluster. For instructions on preparing Kubernetes platforms for installing Verrazzano, see Platform Setup. For detailed installation instructions, see the Installation Guides.

NOTE: If you just created the cluster, then you must wait until your nodes reach Ready status before installing Verrazzano.

Getting up and running quickly with Verrazzano is as easy as 1 - 2 - 3:

1. Install CLI

The Verrazzano command-line tool, vz, is available for Linux and Mac systems.

Download the binary you want from the Releases page.

For example, to download the latest release for Linux AMD64 machines:

    $ curl -LO https://github.com/verrazzano/verrazzano/releases/download/v1.7.2/verrazzano-1.7.2-linux-amd64.tar.gz

Unpack and copy the vz binary.

  $ tar xvf verrazzano-1.7.2-linux-amd64.tar.gz

The following command needs to be run as root.

  $ sudo cp verrazzano-1.7.2/bin/vz /usr/local/bin

2. Install Verrazzano

You install Verrazzano by creating a Verrazzano custom resource in your Kubernetes cluster. Verrazzano currently supports several installation profiles.

Using the Quick Start, you’ll install the dev profile, which is suitable for evaluation.

Install Verrazzano with its dev profile.

$ vz install -f - <<EOF
apiVersion: install.verrazzano.io/v1beta1
kind: Verrazzano
metadata:
  name: example-verrazzano
spec:
  profile: dev
  defaultVolumeSource:
    persistentVolumeClaim:
      claimName: verrazzano-storage
  volumeClaimSpecTemplates:
    - metadata:
        name: verrazzano-storage
      spec:
        resources:
          requests:
            storage: 2Gi
EOF

Wait for the installation to complete. Installation logs will be streamed to the command window until the installation has completed or until the default timeout (30m) has been reached.

NOTE: For some applications, the Kiali console may show warnings for objects that replicate hostname/port configurations across multiple IngressTraits. These warnings do not impact functionality and can be suppressed with the following component override.

3. Deploy an application

The Hello World Helidon example application provides a simple Hello World REST service written with Helidon. For more information and the code of this application, see the Verrazzano Examples.

To deploy the Hello World Helidon example application:

1. Create a namespace for the example application and add labels identifying the namespace as managed by Verrazzano and enabled for Istio.

   $ kubectl create namespace hello-helidon
   $ kubectl label namespace hello-helidon verrazzano-managed=true istio-injection=enabled
   

2. Apply the hello-helidon resources to deploy the application.

   $ kubectl apply -f https://raw.githubusercontent.com/verrazzano/verrazzano/v1.7.2/examples/hello-helidon/hello-helidon-comp.yaml -n hello-helidon
   $ kubectl apply -f https://raw.githubusercontent.com/verrazzano/verrazzano/v1.7.2/examples/hello-helidon/hello-helidon-app.yaml -n hello-helidon
   

3. Wait for the application to be ready.

   $ kubectl wait \
       --for=condition=Ready pods \
       --all -n hello-helidon \
       --timeout=300s
   
   # Sample output
   pod/hello-helidon-deployment-78468f5f9c-czmp4 condition met
   

   This creates the Verrazzano OAM Component application resources for the example and waits for the pods in the hello-helidon namespace to be ready.

4. Save the host name of the load balancer exposing the application’s REST service endpoints.

   $ HOST=$(kubectl get gateways.networking.istio.io hello-helidon-hello-helidon-gw \
       -n hello-helidon \
       -o jsonpath='{.spec.servers[0].hosts[0]}')
   

5. Get the default message.

   $ curl -sk \
       -X GET \
       "https://${HOST}/greet"
   
   # Expected response
   {"message":"Hello World!"}
   

Next steps

See the Verrazzano Example Applications.