cloudfoundry/cf-k8s-controllers

/*
Copyright 2021.

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 (
    "fmt"

    v1 "k8s.io/api/core/v1"
    metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)

// CFServiceBindingSpec defines the desired state of CFServiceBinding
type CFServiceBindingSpec struct {
    // The mutable, user-friendly name of the service binding. Unlike metadata.name, the user can change this field
    DisplayName *string `json:"displayName,omitempty"`

    // The Service this binding uses. When created by the korifi API, this will refer to a CFServiceInstance
    Service v1.ObjectReference `json:"service"`

    // A reference to the CFApp that owns this service binding. The CFApp must be in the same namespace
    AppRef v1.LocalObjectReference `json:"appRef"`
}

// CFServiceBindingStatus defines the observed state of CFServiceBinding
type CFServiceBindingStatus struct {
    // A reference to the Secret containing the binding Credentials in
    // servicebinding.io format. In order to conform to that spec the resource
    // should have a "duck type" field called `binding`. From more info see the
    // servicebinding.io [spec](https://servicebinding.io/spec/core/1.0.0-rc3/#Duck%20Type)
    // +optional
    Binding v1.LocalObjectReference `json:"binding"`

    // A reference to the Secret containing the binding Credentials object. For
    // bindings to user-provided services this refers to the credentials secret
    // from the service instance
    // +optional
    Credentials v1.LocalObjectReference `json:"credentials"`

    //+kubebuilder:validation:Optional
    Conditions []metav1.Condition `json:"conditions,omitempty"`

    // ObservedGeneration captures the latest generation of the CFServiceBinding that has been reconciled
    ObservedGeneration int64 `json:"observedGeneration,omitempty"`
}

//+kubebuilder:object:root=true
//+kubebuilder:subresource:status
//+kubebuilder:printcolumn:name="Display Name",type=string,JSONPath=`.spec.displayName`
//+kubebuilder:printcolumn:name="Age",type="date",JSONPath=`.metadata.creationTimestamp`

// CFServiceBinding is the Schema for the cfservicebindings API
type CFServiceBinding struct {
    metav1.TypeMeta   `json:",inline"`
    metav1.ObjectMeta `json:"metadata,omitempty"`

    Spec CFServiceBindingSpec `json:"spec,omitempty"`

    Status CFServiceBindingStatus `json:"status,omitempty"`
}

//+kubebuilder:object:root=true

// CFServiceBindingList contains a list of CFServiceBinding
type CFServiceBindingList struct {
    metav1.TypeMeta `json:",inline"`
    metav1.ListMeta `json:"metadata,omitempty"`
    Items           []CFServiceBinding `json:"items"`
}

func (b CFServiceBinding) StatusConditions() []metav1.Condition {
    return b.Status.Conditions
}

func (b CFServiceBinding) UniqueName() string {
    return fmt.Sprintf("sb::%s::%s::%s", b.Spec.AppRef.Name, b.Spec.Service.Namespace, b.Spec.Service.Name)
}

func (b CFServiceBinding) UniqueValidationErrorMessage() string {
    return fmt.Sprintf("Service binding already exists: App: %s Service Instance: %s", b.Spec.AppRef.Name, b.Spec.Service.Name)
}

func init() {
    SchemeBuilder.Register(&CFServiceBinding{}, &CFServiceBindingList{})
}