Skip to main content

Hello Universe

Hello Universe is a demo web application utilized to help users learn more about Palette and its features. It functions as a standalone front-end application and provides users with a local click counter and funny Spectro Cloud-themed images.

Versions Supported​

  • 1.1.1

Prerequisites​

  • A Palette account.

  • A cluster profile where the Hello Universe pack can be integrated.

  • A Palette cluster with port :8080 available. If port 8080 is not available, you can set a different port in the values.yaml file.

  • Ensure sufficient CPU resources within the cluster to allocate a minimum of 100 milliCPU and a maximum of 200 milliCPU per replica.

Parameters​

The following parameters are applied to the hello-universe.yaml manifest through the values.yaml file. Users do not need to take any additional actions regarding these parameters.

ParameterDescriptionDefault ValueRequired
manifests.namespaceThe namespace in which the application will be deployed.hello-universeNo
manifests.images.hello-universeThe application image that will be utilized to create the containers.ghcr.io/spectrocloud/hello-universe:1.1.1No
manifests.portThe cluster port number on which the service will listen for incoming traffic.8080No
manifests.replicasThe number of Pods to be created.1No

Usage​

To utilize the Hello Universe pack, create either a full Palette cluster profile or an add-on Palette cluster profile and add the pack to your profile.

If your infrastructure provider does not offer a native load balancer solution, such as VMware and MAAS, the MetalLB pack must be included to the cluster profile to help the LoadBalancer service specified in the manifest obtain an IP address.

After defining the cluster profile, use it to deploy a new cluster or attach it as an add-on profile to an existing cluster.

Once the cluster status displays Running and Healthy, access the Hello Universe application through the exposed service URL along with the displayed port number.

Terraform​

You can reference the Hello Universe pack in Terraform with the following data resource.

data "spectrocloud_registry" "community_registry" {
  name = "Palette Registry"
}
data "spectrocloud_pack" "hellouniverse" {
  name         = "hello-universe"
  version      = "1.1.1"
  registry_uid = data.spectrocloud_registry.community_registry.id
}

References​