forked from gardener-attic/gardener-extensions
/
serviceaccount.go
89 lines (74 loc) · 2.85 KB
/
serviceaccount.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
// Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 internal
import (
"context"
"encoding/json"
"fmt"
"github.com/gardener/gardener-extensions/controllers/provider-gcp/pkg/gcp"
"github.com/gardener/gardener-extensions/pkg/util"
corev1 "k8s.io/api/core/v1"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// ServiceAccount represents a GCP service account.
type ServiceAccount struct {
// Raw is the raw representation of the GCP service account.
Raw []byte
// ProjectID is the project id the service account is associated to.
ProjectID string
}
// GetServiceAccount retrieves the ServiceAccount from the secret with the given secret reference.
func GetServiceAccount(ctx context.Context, c client.Client, secretRef corev1.SecretReference) (*ServiceAccount, error) {
data, err := GetServiceAccountData(ctx, c, secretRef)
if err != nil {
return nil, err
}
projectID, err := ExtractServiceAccountProjectID(data)
if err != nil {
return nil, err
}
return &ServiceAccount{
Raw: data,
ProjectID: projectID,
}, nil
}
// GetServiceAccountData retrieves the service account specified by the secret reference.
func GetServiceAccountData(ctx context.Context, c client.Client, secretRef corev1.SecretReference) ([]byte, error) {
secret, err := util.GetSecretByRef(ctx, c, secretRef)
if err != nil {
return nil, err
}
return ReadServiceAccountSecret(secret)
}
// ReadServiceAccountSecret reads the ServiceAccount from the given secret.
func ReadServiceAccountSecret(secret *corev1.Secret) ([]byte, error) {
data, ok := secret.Data[gcp.ServiceAccountJSONField]
if !ok {
return nil, fmt.Errorf("secret %s/%s doesn't have a service account json", secret.Namespace, secret.Name)
}
return data, nil
}
// ExtractServiceAccountProjectID extracts the project id from the given service account JSON.
func ExtractServiceAccountProjectID(serviceAccountJSON []byte) (string, error) {
var serviceAccount struct {
ProjectID string `json:"project_id"`
}
if err := json.Unmarshal(serviceAccountJSON, &serviceAccount); err != nil {
return "", err
}
if serviceAccount.ProjectID == "" {
return "", fmt.Errorf("no service account specified")
}
return serviceAccount.ProjectID, nil
}