-
Notifications
You must be signed in to change notification settings - Fork 63
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
set auth alias custom metadata to service account annotations
- Loading branch information
Showing
5 changed files
with
201 additions
and
15 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
30 changes: 30 additions & 0 deletions
30
integrationtest/vault/serviceAccountControllerBinding.yaml
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| # Copyright (c) HashiCorp, Inc. | ||
| # SPDX-License-Identifier: MPL-2.0 | ||
|
|
||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| kind: ClusterRoleBinding | ||
| metadata: | ||
| name: test-service-account-getter-account-binding | ||
| roleRef: | ||
| apiGroup: rbac.authorization.k8s.io | ||
| kind: ClusterRole | ||
| name: system:controller:service-account-controller | ||
| subjects: | ||
| - kind: ServiceAccount | ||
| name: test-token-reviewer-account | ||
| namespace: test | ||
| --- | ||
| apiVersion: rbac.authorization.k8s.io/v1 | ||
| kind: ClusterRoleBinding | ||
| metadata: | ||
| name: test-service-account-getter-account-binding-vault | ||
| roleRef: | ||
| apiGroup: rbac.authorization.k8s.io | ||
| kind: ClusterRole | ||
| name: system:controller:service-account-controller | ||
| subjects: | ||
| - kind: ServiceAccount | ||
| name: vault | ||
| namespace: test | ||
|
|
||
|
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| package kubeauth | ||
|
|
||
| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "strings" | ||
|
|
||
| v1 "k8s.io/api/core/v1" | ||
| kubeerrors "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/runtime" | ||
| ) | ||
|
|
||
| const annotationKeyPrefix = "auth-metadata.vault.hashicorp.com/" | ||
|
|
||
| // serviceAccountGetter defines a namespace validator interface | ||
| type serviceAccountGetter interface { | ||
| annotations(context.Context, *http.Client, string, string) (map[string]string, error) | ||
| } | ||
|
|
||
| type serviceAccountGetterFactory func(*kubeConfig) serviceAccountGetter | ||
|
|
||
| // serviceAccountGetterWrapper implements the serviceAccountGetter interface | ||
| type serviceAccountGetterWrapper struct { | ||
| config *kubeConfig | ||
| } | ||
|
|
||
| func newServiceAccountGetterWrapper(config *kubeConfig) serviceAccountGetter { | ||
| return &serviceAccountGetterWrapper{ | ||
| config: config, | ||
| } | ||
| } | ||
|
|
||
| func (w *serviceAccountGetterWrapper) annotations(ctx context.Context, client *http.Client, namespace, serviceAccount string) (map[string]string, error) { | ||
| url := fmt.Sprintf("%s/api/v1/namespaces/%s/serviceaccounts/%s", | ||
| strings.TrimSuffix(w.config.Host, "/"), namespace, serviceAccount) | ||
| req, err := http.NewRequestWithContext(ctx, "GET", url, nil) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // Use the configured TokenReviewer JWT as the bearer | ||
| if w.config.TokenReviewerJWT == "" { | ||
| return nil, errors.New("service account lookup failed: TokenReviewer JWT needs to be configured to retrieve service accounts") | ||
| } | ||
| setRequestHeader(req, fmt.Sprintf("Bearer %s", w.config.TokenReviewerJWT)) | ||
|
|
||
| resp, err := client.Do(req) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| body, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| if resp.StatusCode != http.StatusOK { | ||
| var errStatus metav1.Status | ||
| if err = json.Unmarshal(body, &errStatus); err != nil { | ||
| return nil, fmt.Errorf("failed to parse error status on service account retrieval failure err=%s", err) | ||
| } | ||
|
|
||
| if errStatus.Status != metav1.StatusSuccess { | ||
| return nil, fmt.Errorf("failed to get service account (code %d status %s)", | ||
| resp.StatusCode, kubeerrors.FromObject(runtime.Object(&errStatus))) | ||
| } | ||
| } | ||
| var sa v1.ServiceAccount | ||
| err = json.Unmarshal(body, &sa) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| annotations := map[string]string{} | ||
| for k, v := range sa.Annotations { | ||
| if strings.HasPrefix(k, annotationKeyPrefix) { | ||
| newK := strings.TrimPrefix(k, annotationKeyPrefix) | ||
| annotations[newK] = v | ||
| } | ||
| } | ||
| return annotations, nil | ||
| } | ||
|
|
||
| type mockServiceAccountGetter struct { | ||
| meta metav1.ObjectMeta | ||
| } | ||
|
|
||
| func mockServiceAccountGetterFactory(meta metav1.ObjectMeta) serviceAccountGetterFactory { | ||
| return func(config *kubeConfig) serviceAccountGetter { | ||
| return &mockServiceAccountGetter{ | ||
| meta: meta, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func (v *mockServiceAccountGetter) annotations(context.Context, *http.Client, string, string) (map[string]string, error) { | ||
| annotations := map[string]string{} | ||
| for k, v := range v.meta.Annotations { | ||
| if strings.HasPrefix(k, annotationKeyPrefix) { | ||
| newK := strings.TrimPrefix(k, annotationKeyPrefix) | ||
| annotations[newK] = v | ||
| } | ||
| } | ||
| return annotations, nil | ||
| } |