Part 1: Create

This is Part 1 of the exercise that will focus on creating add-ons that will be used to test cluster overrides in a later section.

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What Will You Do

In part 1, you will:

• Create a Namespace
• Create a YAML Add-On
• Create a Helm Add-On
• Create a cluster blueprint
• Apply the blueprint to a cluster

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Step 1: Create Namespace

In this step, we will create a namespace on the cluster that will be used for our add-ons.

• Navigate to the project in your Org where your cluster is located
• Select Infrastructure -> Namespaces
• Click "New Namespace"
• Enter a name for the namespace
• Select "Wizard" for the Type
• Click "Save"

• Click "Save & Go To Placement"

• Select the cluster where the namespace will be published
• Click "Save & Go To Publish"

• Click "Publish"

The namespace is now published on the cluster.

• Click "Exit"

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Step 2: Create YAML Add-On

In this step, we will create a YAML based NGINX add-on. In a later section, we will use cluster overrides to customize this add-on.

• Navigate to the project in your Org where your cluster is located
• Select Infrastructure -> Add-Ons
• Click "New Add-On" -> "Create New Add-On"
• Select "Bring your own"
• Enter a name for the add-on
• Select "k8s YAML" for the Type
• Select "Upload files manually"
• Select the previously created namespace
• Click "Create"

Next, create a version for this add-on.

• Click "New Version"

• Enter a version name
• Save the following YAML to a file and upload the file

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-yaml
  labels:
    app: nginx
  annotations: 
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx-yaml
        image: nginx
        ports:
        - containerPort: 80

• Click "Save Changes"

The YAML add-on and version will be created.

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Step 3: Create Helm Add-On

In this step, we will create a Helm based NGINX add-on. In a later section, we will use cluster overrides to customize this add-on.

• Navigate to the project in your Org where your cluster is located
• Select Infrastructure -> Add-Ons
• Click "New Add-On" -> "Create New Add-On from Catalog"
• Search for "nginx"
• Select "nginx" from "default bitnami"

• Click "Create Add-On"

• Enter a name for the add-on
• Select the previously created namespace
• Click "Create"

Next, create a version for this add-on.

• Enter a version name
• Save the following YAML to a file and upload the file as the values file

service:
  type: ClusterIP

• Click "Save Changes"

The Helm add-on and version will be created.

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Step 4: Create Blueprint

In this step, we will create a custom blueprint based off the "minimal" blueprint. The blueprint will contain the previously created add-ons.

• Navigate to the project in your Org where your cluster is located
• Select Infrastructure -> Blueprints
• Click "New Blueprint"
• Enter a name for the blueprint
• Select "Custom Blueprint" for the Type
• Click "Save"

Next, create a blueprint version for this custom blueprint.

• Enter the "Version Name"
• Select the minimal blueprint as the base blueprint

• In the add-ons section, add the previously created YAML and Helm add-ons
• In the Managed System Add-Ons section, deselect "Ingress Controller"
• Click "Save Changes"

The blueprint and version will be created.

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Step 5: Apply Blueprint

In this step, we will apply the blueprint to an existing cluster.

• Navigate to the project in your Org where the cluster is located
• Select Infrastructure -> Clusters
• Click the gear icon on the cluster card
• Select "Update Blueprint"
• Select the previosuly created blueprint
• Select the blueprint version
• Click "Save and Publish"

The blueprint will begin to be applied to the cluster.

The blueprint is now applied to the cluster.

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Recap

Congratulations! At this point, you have successfully created a YAML and a Helm based add-on which have been deployed to the cluster via a custom cluster blueprint.

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