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secret.go
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secret.go
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// Copyright 2020 Google LLC
//
// 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
//
// https://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 resources
import (
"encoding/json"
"github.com/google/kf/v2/pkg/apis/kf/v1alpha1"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"knative.dev/pkg/kmeta"
)
// BindingCredentialsSecretName gets the name of the secret for a ServiceInstanceBinding.
func BindingCredentialsSecretName(binding *v1alpha1.ServiceInstanceBinding) string {
return v1alpha1.GenerateName("credentials", binding.Name)
}
// MergeCredentialsSecretForBinding merges the Secret containing the binding credentials with params Secret.
func MergeCredentialsSecretForBinding(binding v1alpha1.ServiceInstanceBinding, serviceCredentialsSecret v1.Secret, bindingParamsSecret v1.Secret) (*v1.Secret, error) {
var mergedCredentials map[string]json.RawMessage
err := json.Unmarshal(serviceCredentialsSecret.Data[v1alpha1.ServiceInstanceParamsSecretKey], &mergedCredentials)
if err != nil {
return nil, err
}
// Merge in binding parameters, if there are any. Parameter values with the same key will override the original credential values.
err = json.Unmarshal(bindingParamsSecret.Data[v1alpha1.ServiceInstanceParamsSecretKey], &mergedCredentials)
if err != nil {
return nil, err
}
newCreds := make(map[string][]byte)
for k, v := range mergedCredentials {
newCreds[k] = v
}
return makeBindingCredentialsSecret(&binding, newCreds), nil
}
// MakeCredentialsForOSBService creates a Secret containing the binding
// credentials for an OSB service.
func MakeCredentialsForOSBService(
binding *v1alpha1.ServiceInstanceBinding,
creds map[string]interface{},
) (*v1.Secret, error) {
newCreds := make(map[string][]byte)
for k, v := range creds {
// Flatten OSB credentials into a Secret where keys are from OSB and
// values are JSON encoded values so the creds can be properly consumed
// by the code that builds VCAP_SERVICES and/or mounted directly into the
// container.
encoded, err := json.Marshal(v)
if err != nil {
return nil, err
}
newCreds[k] = encoded
}
return makeBindingCredentialsSecret(binding, newCreds), nil
}
func makeBindingCredentialsSecret(binding *v1alpha1.ServiceInstanceBinding, secretData map[string][]byte) *v1.Secret {
return &v1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: BindingCredentialsSecretName(binding),
Namespace: binding.GetNamespace(),
OwnerReferences: []metav1.OwnerReference{
*kmeta.NewControllerRef(binding),
},
},
Data: secretData,
}
}