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feat(metrics-operator): add basicauth to prometheus provider (#2154)
Signed-off-by: realanna <anna.reale@dynatrace.com> Signed-off-by: RealAnna <89971034+RealAnna@users.noreply.github.com> Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> Signed-off-by: Florian Bacher <florian.bacher@dynatrace.com> Co-authored-by: odubajDT <93584209+odubajDT@users.noreply.github.com> Co-authored-by: Florian Bacher <florian.bacher@dynatrace.com> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
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64 changes: 64 additions & 0 deletions
64
metrics-operator/controllers/common/providers/prometheus/common.go
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,64 @@ | ||
package prometheus | ||
|
||
import ( | ||
"context" | ||
"errors" | ||
"net/http" | ||
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metricsapi "github.com/keptn/lifecycle-toolkit/metrics-operator/api/v1alpha3" | ||
promapi "github.com/prometheus/client_golang/api" | ||
"github.com/prometheus/common/config" | ||
corev1 "k8s.io/api/core/v1" | ||
"k8s.io/apimachinery/pkg/types" | ||
"sigs.k8s.io/controller-runtime/pkg/client" | ||
) | ||
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const secretKeyUserName = "user" | ||
const secretKeyPassword = "password" | ||
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var ErrSecretKeyRefNotDefined = errors.New("the SecretKeyRef property with the Prometheus API Key is missing") | ||
var ErrInvalidSecretFormat = errors.New("secret key does not contain user and password") | ||
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type SecretData struct { | ||
User string `json:"user"` | ||
Password config.Secret `json:"password"` | ||
} | ||
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//go:generate moq -pkg fake -skip-ensure -out ./fake/roundtripper_mock.go . IRoundTripper | ||
type IRoundTripper interface { | ||
GetRoundTripper(context.Context, metricsapi.KeptnMetricsProvider, client.Client) (http.RoundTripper, error) | ||
} | ||
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type RoundTripperRetriever struct { | ||
} | ||
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func (r RoundTripperRetriever) GetRoundTripper(ctx context.Context, provider metricsapi.KeptnMetricsProvider, k8sClient client.Client) (http.RoundTripper, error) { | ||
secret, err := getPrometheusSecret(ctx, provider, k8sClient) | ||
if err != nil { | ||
if errors.Is(err, ErrSecretKeyRefNotDefined) { | ||
return promapi.DefaultRoundTripper, nil | ||
} | ||
return nil, err | ||
} | ||
return config.NewBasicAuthRoundTripper(secret.User, secret.Password, "", promapi.DefaultRoundTripper), nil | ||
} | ||
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func getPrometheusSecret(ctx context.Context, provider metricsapi.KeptnMetricsProvider, k8sClient client.Client) (*SecretData, error) { | ||
if !provider.HasSecretDefined() { | ||
return nil, ErrSecretKeyRefNotDefined | ||
} | ||
secret := &corev1.Secret{} | ||
if err := k8sClient.Get(ctx, types.NamespacedName{Name: provider.Spec.SecretKeyRef.Name, Namespace: provider.Namespace}, secret); err != nil { | ||
return nil, err | ||
} | ||
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var secretData SecretData | ||
user, ok := secret.Data[secretKeyUserName] | ||
pw, yes := secret.Data[secretKeyPassword] | ||
if !ok || !yes { | ||
return nil, ErrInvalidSecretFormat | ||
} | ||
secretData.User = string(user) | ||
secretData.Password = config.Secret(pw) | ||
return &secretData, nil | ||
} |
193 changes: 193 additions & 0 deletions
193
metrics-operator/controllers/common/providers/prometheus/common_test.go
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@@ -0,0 +1,193 @@ | ||
package prometheus | ||
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import ( | ||
"context" | ||
"net/http" | ||
"net/http/httptest" | ||
"reflect" | ||
"strings" | ||
"testing" | ||
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metricsapi "github.com/keptn/lifecycle-toolkit/metrics-operator/api/v1alpha3" | ||
"github.com/keptn/lifecycle-toolkit/metrics-operator/controllers/common/fake" | ||
promapi "github.com/prometheus/client_golang/api" | ||
"github.com/prometheus/common/config" | ||
"github.com/stretchr/testify/require" | ||
corev1 "k8s.io/api/core/v1" | ||
v1 "k8s.io/api/core/v1" | ||
k8serrors "k8s.io/apimachinery/pkg/api/errors" | ||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
"sigs.k8s.io/controller-runtime/pkg/client" | ||
) | ||
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const prometheusPayload = "test" | ||
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func TestGetSecret_NoKeyDefined(t *testing.T) { | ||
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fakeClient := fake.NewClient() | ||
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p := metricsapi.KeptnMetricsProvider{ | ||
Spec: metricsapi.KeptnMetricsProviderSpec{ | ||
TargetServer: "svr.URL", | ||
}, | ||
} | ||
r1, e := getPrometheusSecret(context.TODO(), p, fakeClient) | ||
require.NotNil(t, e) | ||
require.ErrorIs(t, ErrSecretKeyRefNotDefined, e) | ||
require.Empty(t, r1) | ||
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} | ||
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func TestGetSecret_NoSecretDefined(t *testing.T) { | ||
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secretName := "testSecret" | ||
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fakeClient := fake.NewClient() | ||
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b := true | ||
p := metricsapi.KeptnMetricsProvider{ | ||
Spec: metricsapi.KeptnMetricsProviderSpec{ | ||
SecretKeyRef: v1.SecretKeySelector{ | ||
Key: "apiKey", | ||
LocalObjectReference: v1.LocalObjectReference{ | ||
Name: secretName, | ||
}, | ||
Optional: &b, | ||
}, | ||
TargetServer: "svr", | ||
}, | ||
} | ||
r1, e := getPrometheusSecret(context.TODO(), p, fakeClient) | ||
require.NotNil(t, e) | ||
t.Log(e.Error()) | ||
require.True(t, k8serrors.IsNotFound(e)) | ||
require.Empty(t, r1) | ||
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} | ||
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func TestGetSecret_HappyPath(t *testing.T) { | ||
svr := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { | ||
_, err := w.Write([]byte(prometheusPayload)) | ||
require.Nil(t, err) | ||
})) | ||
defer svr.Close() | ||
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secretName := "mySecret" | ||
apiToken := &corev1.Secret{ | ||
ObjectMeta: metav1.ObjectMeta{ | ||
Name: secretName, | ||
Namespace: "default", | ||
}, | ||
Data: map[string][]byte{ | ||
"user": []byte("myuser"), | ||
"password": []byte("mytoken"), | ||
}, | ||
} | ||
fakeClient := fake.NewClient(apiToken) | ||
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p := metricsapi.KeptnMetricsProvider{ | ||
ObjectMeta: metav1.ObjectMeta{Namespace: "default"}, | ||
Spec: metricsapi.KeptnMetricsProviderSpec{ | ||
SecretKeyRef: v1.SecretKeySelector{ | ||
Key: "login", | ||
LocalObjectReference: v1.LocalObjectReference{ | ||
Name: secretName, | ||
}, | ||
}, | ||
TargetServer: svr.URL, | ||
}, | ||
} | ||
r1, e := getPrometheusSecret(context.TODO(), p, fakeClient) | ||
require.Nil(t, e) | ||
require.Equal(t, "myuser", r1.User) | ||
require.Equal(t, config.Secret("mytoken"), r1.Password) | ||
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} | ||
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func Test_GetRoundtripper(t *testing.T) { | ||
goodsecret := &corev1.Secret{ | ||
ObjectMeta: metav1.ObjectMeta{ | ||
Name: "test", | ||
Namespace: "default", | ||
}, | ||
Data: map[string][]byte{ | ||
"user": []byte("myuser"), | ||
"password": []byte("mytoken"), | ||
}, | ||
} | ||
tests := []struct { | ||
name string | ||
provider metricsapi.KeptnMetricsProvider | ||
k8sClient client.Client | ||
want http.RoundTripper | ||
wantErr bool | ||
errorStr string | ||
}{ | ||
{ | ||
name: "TestSuccess", | ||
provider: metricsapi.KeptnMetricsProvider{ | ||
ObjectMeta: metav1.ObjectMeta{Namespace: "default"}, | ||
Spec: metricsapi.KeptnMetricsProviderSpec{ | ||
Type: "", | ||
TargetServer: "", | ||
SecretKeyRef: v1.SecretKeySelector{ | ||
LocalObjectReference: v1.LocalObjectReference{ | ||
Name: "test", | ||
}, | ||
Key: "", | ||
Optional: nil, | ||
}, | ||
}, | ||
}, | ||
k8sClient: fake.NewClient(goodsecret), | ||
want: config.NewBasicAuthRoundTripper("myuser", "mytoken", "", promapi.DefaultRoundTripper), | ||
wantErr: false, | ||
}, | ||
{ | ||
name: "TestSecretNotDefined", | ||
provider: metricsapi.KeptnMetricsProvider{}, | ||
k8sClient: fake.NewClient(), | ||
want: promapi.DefaultRoundTripper, | ||
wantErr: false, | ||
}, | ||
{ | ||
name: "TestErrorFromGetPrometheusSecretNotExists", | ||
provider: metricsapi.KeptnMetricsProvider{ | ||
ObjectMeta: metav1.ObjectMeta{Namespace: "default"}, | ||
Spec: metricsapi.KeptnMetricsProviderSpec{ | ||
Type: "", | ||
TargetServer: "", | ||
SecretKeyRef: v1.SecretKeySelector{ | ||
LocalObjectReference: v1.LocalObjectReference{ | ||
Name: "test", | ||
}, | ||
Key: "", | ||
Optional: nil, | ||
}, | ||
}, | ||
}, | ||
k8sClient: fake.NewClient(), | ||
want: nil, | ||
wantErr: true, | ||
errorStr: "not found", | ||
}, | ||
} | ||
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for _, tt := range tests { | ||
t.Run(tt.name, func(t *testing.T) { | ||
got, err := RoundTripperRetriever{}.GetRoundTripper(context.TODO(), tt.provider, tt.k8sClient) | ||
t.Log(err) | ||
if (err != nil) != tt.wantErr { | ||
t.Errorf("getRoundtripper() error = %v, wantErr %v", err, tt.wantErr) | ||
return | ||
} | ||
if tt.errorStr != "" && !strings.Contains(err.Error(), tt.errorStr) { | ||
t.Errorf("getRoundtripper() error = %s, wantErr %s", err.Error(), tt.errorStr) | ||
return | ||
} | ||
if !reflect.DeepEqual(got, tt.want) { | ||
t.Errorf("getRoundtripper() got = %v, want %v", got, tt.want) | ||
} | ||
}) | ||
} | ||
} |
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