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Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */

package v1alpha1

import metav1 “k8s.io/apimachinery/pkg/apis/meta/v1”

const ( // APIVersionSelector is the CUE path for the Timoni’s API version. APIVersionSelector Selector = “timoni.apiVersion”

// InstanceSelector is the CUE path for the Timoni's instance. InstanceSelector Selector = "timoni.instance" // ConfigValuesSelector is the CUE path for the Timoni's instance config. ConfigValuesSelector Selector = "timoni.instance.config" // ApplySelector is the CUE path for the Timoni's apply resource sets. ApplySelector Selector = "timoni.apply"

// ValuesSelector is the CUE path for the Timoni's module values. ValuesSelector Selector = "values"

)

// InstanceSchema defines the v1alpha1 CUE schema for Timoni’s instance API. const InstanceSchema = ` #Timoni: { apiVersion: string & =~”^v1alpha1$” instance: {…} apply: [string]: […] kubeMinorVersion?: int }

timoni: #Timoni `

// Instance holds the information about the module, values // and the list of the managed Kubernetes resources. type Instance struct { metav1.TypeMeta json:",inline" metav1.ObjectMeta json:"metadata,omitempty"

// Module is a reference to the module's artifact in the registry. Module ModuleReference `json:"module"` // Values hold the user-supplied configuration of this instance. Values string json:"values" // LastTransitionTime is the timestamp (UTC RFC3339) of the last inventory change. // +optional LastTransitionTime string json:"lastTransitionTime,omitempty" // Inventory contains the list of Kubernetes resource object references. // +optional Inventory *ResourceInventory json:"inventory,omitempty"

// Images contains the list of container image references. // +optional Images []string json:"images,omitempty"

}

Explanation

This code defines the API structure for Timoni’s instances within a Kubernetes environment. It’s a crucial part of Timoni’s functionality, allowing users to manage their Kubernetes resources with configurations from Helm modules.

Key Concepts:

Selectors: The APIVersionSelector, InstanceSelector, ConfigValuesSelector, ApplySelector, and ValuesSelector constants define CUE paths used to access specific data within Timoni’s configurations. These selectors are likely used for parsing and manipulating the configuration data.
InstanceSchema: This constant defines the CUE schema for Timoni’s instance API, which acts as a blueprint for validating and structuring the instance data. It defines the required and optional fields for an instance, including:
apiVersion: The version of the Timoni API.
instance: This field holds the instance-specific data, including the module reference and values.
apply: This field is likely used for defining the Kubernetes resources that should be managed by Timoni.
kubeMinorVersion: An optional field likely used for specifying the targeted Kubernetes minor version.
Instance Struct: This struct represents a Timoni instance, holding the following information:
TypeMeta: Metadata about the API type and version.
ObjectMeta: Kubernetes metadata for the instance.
Module: A reference to the Helm module used by this instance.
Values: The user-provided configuration values for the instance.
LastTransitionTime: Timestamp of the last inventory update.
Inventory: A reference to the Kubernetes resources managed by the instance.
Images: A list of container image references.

Functionality:

Defining the API: This code defines the structure of Timoni’s instance API, defining the fields and their expected types.
Validating Data: The CUE schema enforces consistency and validity of instance data, ensuring that Timoni operates correctly.
Instance Representation: The Instance struct provides a clear, structured representation of a Timoni instance within the system.

Overall: This code defines the basic structure and data representation for Timoni instances, which serve as the foundation for Timoni’s management of Kubernetes resources based on Helm modules and user configurations.

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