rebase: update libopenstorage/secrets

libopenstorage has added a new feature that makes it possible to destroy
the contents of a key/value in the Hashicorp Vault kv-v2 secrets backend.

See-also: https://github.com/libopenstorage/secrets/pull/55
Signed-off-by: Niels de Vos <ndevos@redhat.com>
This commit is contained in:
Niels de Vos
2021-08-02 10:40:42 +02:00
committed by mergify[bot]
parent 2782878ea2
commit d7bcb42481
13 changed files with 1674 additions and 236 deletions

6
vendor/github.com/libopenstorage/secrets/.travis.yml generated vendored Normal file
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@ -0,0 +1,6 @@
language: go
go:
- 1.14.6
script:
- |
make unit-test

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@ -1,2 +1,8 @@
generate:
go generate ./...
unit-test:
go test ./...
ci-test:
go test -timeout 1800s -v github.com/libopenstorage/secrets/vault -tags ci

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@ -3,9 +3,53 @@ module github.com/libopenstorage/secrets
go 1.13
require (
github.com/Azure/azure-sdk-for-go v36.2.0+incompatible
github.com/Azure/go-autorest/autorest v0.9.2
github.com/Azure/go-autorest/autorest/adal v0.7.0
github.com/Azure/go-autorest/autorest/to v0.3.0
github.com/IBM/keyprotect-go-client v0.5.1
github.com/aws/aws-sdk-go v1.25.41
github.com/golang/mock v1.4.3
github.com/hashicorp/go-hclog v0.14.1
github.com/hashicorp/vault v1.4.2
github.com/hashicorp/vault/api v1.0.5-0.20200902155336-f9d5ce5a171a
github.com/pborman/uuid v1.2.0
github.com/portworx/dcos-secrets v0.0.0-20180616013705-8e8ec3f66611
github.com/portworx/kvdb v0.0.0-20200929023115-b312c7519467
github.com/portworx/sched-ops v0.0.0-20200831185134-3e8010dc7056
github.com/sirupsen/logrus v1.4.2
github.com/stretchr/testify v1.4.0
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
google.golang.org/api v0.14.0
google.golang.org/protobuf v1.25.0 // indirect
)
replace (
github.com/Azure/go-autorest => github.com/Azure/go-autorest v14.2.0+incompatible
github.com/hashicorp/consul => github.com/hashicorp/consul v1.5.1
github.com/kubernetes-incubator/external-storage => github.com/libopenstorage/external-storage v5.1.0-openstorage+incompatible
github.com/kubernetes-incubator/external-storage v0.0.0-00010101000000-000000000000 => github.com/libopenstorage/external-storage v5.1.0-openstorage+incompatible
github.com/prometheus/prometheus => github.com/prometheus/prometheus v1.8.2-0.20190424153033-d3245f150225
k8s.io/api => k8s.io/api v0.15.11
k8s.io/apiextensions-apiserver => k8s.io/apiextensions-apiserver v0.15.11
k8s.io/apimachinery => k8s.io/apimachinery v0.15.11
k8s.io/apiserver => k8s.io/apiserver v0.15.11
k8s.io/cli-runtime => k8s.io/cli-runtime v0.15.11
k8s.io/client-go => k8s.io/client-go v0.15.11
k8s.io/cloud-provider => k8s.io/cloud-provider v0.15.11
k8s.io/cluster-bootstrap => k8s.io/cluster-bootstrap v0.15.11
k8s.io/code-generator => k8s.io/code-generator v0.15.11
k8s.io/component-base => k8s.io/component-base v0.15.11
k8s.io/cri-api => k8s.io/cri-api v0.15.11
k8s.io/csi-translation-lib => k8s.io/csi-translation-lib v0.15.11
k8s.io/kube-aggregator => k8s.io/kube-aggregator v0.15.11
k8s.io/kube-controller-manager => k8s.io/kube-controller-manager v0.15.11
k8s.io/kube-proxy => k8s.io/kube-proxy v0.15.11
k8s.io/kube-scheduler => k8s.io/kube-scheduler v0.15.11
k8s.io/kubectl => k8s.io/kubectl v0.15.11
k8s.io/kubelet => k8s.io/kubelet v0.15.11
k8s.io/kubernetes => k8s.io/kubernetes v1.16.0
k8s.io/legacy-cloud-providers => k8s.io/legacy-cloud-providers v0.15.11
k8s.io/metrics => k8s.io/metrics v0.15.11
k8s.io/sample-apiserver => k8s.io/sample-apiserver v0.15.11
)

File diff suppressed because it is too large Load Diff

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@ -21,6 +21,8 @@ var (
ErrSecretExists = errors.New("Secret Id already exists")
// ErrInvalidSecretData is returned when no secret data is found
ErrInvalidSecretData = errors.New("Secret Data cannot be empty when CustomSecretData|PublicSecretData flag is set")
// ErrInvalidKvdbProvided is returned when an incorrect KVDB implementation is provided for persistence store.
ErrInvalidKvdbProvided = errors.New("Invalid kvdb provided. secret store works in conjuction with a kvdb")
)
const (
@ -40,20 +42,26 @@ const (
)
const (
TypeAWS = "aws-kms"
TypeAzure = "azure-kv"
TypeDCOS = "dcos"
TypeDocker = "docker"
TypeGCloud = "gcloud-kms"
TypeIBM = "ibm-kp"
TypeK8s = "k8s"
TypeKVDB = "kvdb"
TypeVault = "vault"
TypeAWS = "aws-kms"
TypeAzure = "azure-kv"
TypeDCOS = "dcos"
TypeDocker = "docker"
TypeGCloud = "gcloud-kms"
TypeIBM = "ibm-kp"
TypeK8s = "k8s"
TypeKVDB = "kvdb"
TypeVault = "vault"
TypeVaultTransit = "vault-transit"
)
const (
// KeyVaultNamespace is a keyContext parameter for vault secrets.
KeyVaultNamespace = "vault-namespace"
// DestroySecret is a keyContext parameter for Vault secrets indicating whether the Secret should be destroyed
// This is only valid when Vault's KV Secret Engine is running on version 2 since by default keys are versioned and soft-deleted
// Activating this will PERMANENTLY delete all metadata and versions for a key
DestroySecret = "destroy-all-secret-versions"
)
// Secrets interface implemented by backend Key Management Systems (KMS)

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@ -0,0 +1,192 @@
package utils
import (
"context"
"errors"
"fmt"
"net/http"
"os"
"path"
"strconv"
"strings"
"github.com/hashicorp/go-hclog"
"github.com/hashicorp/vault/api"
"github.com/hashicorp/vault/command/agent/auth"
"github.com/hashicorp/vault/command/agent/auth/kubernetes"
)
const (
vaultAddressPrefix = "http"
// AuthMethodKubernetes is a named auth method.
AuthMethodKubernetes = "kubernetes"
// AuthMethod is a vault authentication method used.
// https://www.vaultproject.io/docs/auth#auth-methods
AuthMethod = "VAULT_AUTH_METHOD"
// AuthMountPath defines a custom auth mount path.
AuthMountPath = "VAULT_AUTH_MOUNT_PATH"
// AuthKubernetesRole is the role to authenticate against on Vault
AuthKubernetesRole = "VAULT_AUTH_KUBERNETES_ROLE"
// AuthKubernetesTokenPath is the file path to a custom JWT token to use for authentication.
// If omitted, the default service account token path is used.
AuthKubernetesTokenPath = "VAULT_AUTH_KUBERNETES_TOKEN_PATH"
// AuthKubernetesMountPath
AuthKubernetesMountPath = "kubernetes"
)
var (
ErrVaultAuthParamsNotSet = errors.New("VAULT_TOKEN or VAULT_AUTH_METHOD not set")
ErrVaultAddressNotSet = errors.New("VAULT_ADDR not set")
ErrInvalidVaultToken = errors.New("VAULT_TOKEN is invalid")
ErrInvalidSkipVerify = errors.New("VAULT_SKIP_VERIFY is invalid")
ErrInvalidVaultAddress = errors.New("VAULT_ADDRESS is invalid. " +
"Should be of the form http(s)://<ip>:<port>")
ErrAuthMethodUnknown = errors.New("unknown auth method")
ErrKubernetesRole = errors.New(AuthKubernetesRole + " not set")
)
// IsValidAddr checks address has the correct format.
func IsValidAddr(address string) error {
// Vault fails if address is not in correct format
if !strings.HasPrefix(address, vaultAddressPrefix) {
return ErrInvalidVaultAddress
}
return nil
}
// GetVaultParam retrieves a named parameter from the config or tried to get it from the environment variables.
func GetVaultParam(secretConfig map[string]interface{}, name string) string {
if tokenIntf, exists := secretConfig[name]; exists {
tokenStr, ok := tokenIntf.(string)
if !ok {
return ""
}
return strings.TrimSpace(tokenStr)
} else {
return strings.TrimSpace(os.Getenv(name))
}
}
// ConfigureTLS adds tls parameters to the vault configuration.
func ConfigureTLS(config *api.Config, secretConfig map[string]interface{}) error {
tlsConfig := api.TLSConfig{}
skipVerify := GetVaultParam(secretConfig, api.EnvVaultInsecure)
if skipVerify != "" {
insecure, err := strconv.ParseBool(skipVerify)
if err != nil {
return ErrInvalidSkipVerify
}
tlsConfig.Insecure = insecure
}
cacert := GetVaultParam(secretConfig, api.EnvVaultCACert)
tlsConfig.CACert = cacert
capath := GetVaultParam(secretConfig, api.EnvVaultCAPath)
tlsConfig.CAPath = capath
clientcert := GetVaultParam(secretConfig, api.EnvVaultClientCert)
tlsConfig.ClientCert = clientcert
clientkey := GetVaultParam(secretConfig, api.EnvVaultClientKey)
tlsConfig.ClientKey = clientkey
tlsserverName := GetVaultParam(secretConfig, api.EnvVaultTLSServerName)
tlsConfig.TLSServerName = tlsserverName
return config.ConfigureTLS(&tlsConfig)
}
// CloseIdleConnections ensures that the vault idle connections are closed.
func CloseIdleConnections(cfg *api.Config) {
if cfg == nil || cfg.HttpClient == nil {
return
}
// close connection in case of error (a fix for go version < 1.12)
if tp, ok := cfg.HttpClient.Transport.(*http.Transport); ok {
tp.CloseIdleConnections()
}
}
// Authenticate gets vault authentication parameters for the provided configuration.
func Authenticate(client *api.Client, config map[string]interface{}) (token string, autoAuth bool, err error) {
// use VAULT_TOKEN if it's provided
if token = GetVaultParam(config, api.EnvVaultToken); token != "" {
return token, false, nil
}
// or try to use the kubernetes auth method
if GetVaultParam(config, AuthMethod) != "" {
token, err = GetAuthToken(client, config)
return token, true, err
}
return "", false, ErrVaultAuthParamsNotSet
}
// GetAuthToken tries to get the vault token for the provided authentication method.
func GetAuthToken(client *api.Client, config map[string]interface{}) (string, error) {
path, _, data, err := authenticate(client, config)
if err != nil {
return "", err
}
secret, err := client.Logical().Write(path, data)
if err != nil {
return "", err
}
if secret == nil || secret.Auth == nil {
return "", errors.New("authentication returned nil auth info")
}
if secret.Auth.ClientToken == "" {
return "", errors.New("authentication returned empty client token")
}
return secret.Auth.ClientToken, err
}
func authenticate(client *api.Client, config map[string]interface{}) (string, http.Header, map[string]interface{}, error) {
method := GetVaultParam(config, AuthMethod)
switch method {
case AuthMethodKubernetes:
return authKubernetes(client, config)
}
return "", nil, nil, fmt.Errorf("%s method: %s", method, ErrAuthMethodUnknown)
}
func authKubernetes(client *api.Client, config map[string]interface{}) (string, http.Header, map[string]interface{}, error) {
authConfig, err := buildAuthConfig(config)
if err != nil {
return "", nil, nil, err
}
method, err := kubernetes.NewKubernetesAuthMethod(authConfig)
if err != nil {
return "", nil, nil, err
}
return method.Authenticate(context.TODO(), client)
}
func buildAuthConfig(config map[string]interface{}) (*auth.AuthConfig, error) {
role := GetVaultParam(config, AuthKubernetesRole)
if role == "" {
return nil, ErrKubernetesRole
}
mountPath := GetVaultParam(config, AuthMountPath)
if mountPath == "" {
mountPath = AuthKubernetesMountPath
}
tokenPath := GetVaultParam(config, AuthKubernetesTokenPath)
authMountPath := path.Join("auth", mountPath)
return &auth.AuthConfig{
Logger: hclog.NewNullLogger(),
MountPath: authMountPath,
Config: map[string]interface{}{
"role": role,
"token_path": tokenPath,
},
}, nil
}

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@ -1,21 +1,14 @@
package vault
import (
"context"
"errors"
"fmt"
"net/http"
"os"
"path"
"strconv"
"strings"
"sync"
"github.com/hashicorp/go-hclog"
"github.com/hashicorp/vault/api"
"github.com/hashicorp/vault/command/agent/auth"
"github.com/hashicorp/vault/command/agent/auth/kubernetes"
"github.com/libopenstorage/secrets"
"github.com/libopenstorage/secrets/vault/utils"
)
const (
@ -23,40 +16,25 @@ const (
DefaultBackendPath = "secret/"
VaultBackendPathKey = "VAULT_BACKEND_PATH"
VaultBackendKey = "VAULT_BACKEND"
vaultAddressPrefix = "http"
kvVersionKey = "version"
kvDataKey = "data"
kvMetadataKey = "metadata"
kvVersion1 = "kv"
kvVersion2 = "kv-v2"
AuthMethodKubernetes = "kubernetes"
// AuthMethod is a vault authentication method used.
// https://www.vaultproject.io/docs/auth#auth-methods
AuthMethod = "VAULT_AUTH_METHOD"
// AuthMountPath defines a custom auth mount path.
AuthMountPath = "VAULT_AUTH_MOUNT_PATH"
// AuthKubernetesRole is the role to authenticate against on Vault
AuthKubernetesRole = "VAULT_AUTH_KUBERNETES_ROLE"
// AuthKubernetesTokenPath is the file path to a custom JWT token to use for authentication.
// If omitted, the default service account token path is used.
AuthKubernetesTokenPath = "VAULT_AUTH_KUBERNETES_TOKEN_PATH"
// AuthKubernetesMountPath
AuthKubernetesMountPath = "kubernetes"
AuthMethodKubernetes = utils.AuthMethodKubernetes
AuthMethod = utils.AuthMethod
AuthMountPath = utils.AuthMountPath
AuthKubernetesRole = utils.AuthKubernetesRole
AuthKubernetesTokenPath = utils.AuthKubernetesTokenPath
AuthKubernetesMountPath = utils.AuthKubernetesMountPath
)
var (
ErrVaultTokenNotSet = errors.New("VAULT_TOKEN not set.")
ErrVaultAddressNotSet = errors.New("VAULT_ADDR not set.")
ErrInvalidVaultToken = errors.New("VAULT_TOKEN is invalid")
ErrInvalidSkipVerify = errors.New("VAULT_SKIP_VERIFY is invalid")
ErrInvalidVaultAddress = errors.New("VAULT_ADDRESS is invalid. " +
"Should be of the form http(s)://<ip>:<port>")
ErrAuthMethodUnknown = fmt.Errorf("unknown auth method")
ErrKubernetesRole = fmt.Errorf("%s not set", AuthKubernetesRole)
)
func init() {
if err := secrets.Register(Name, New); err != nil {
panic(err.Error())
}
}
type vaultSecrets struct {
mu sync.RWMutex
@ -89,17 +67,16 @@ func New(
return nil, config.Error
}
address := getVaultParam(secretConfig, api.EnvVaultAddress)
address := utils.GetVaultParam(secretConfig, api.EnvVaultAddress)
if address == "" {
return nil, ErrVaultAddressNotSet
return nil, utils.ErrVaultAddressNotSet
}
// Vault fails if address is not in correct format
if !strings.HasPrefix(address, vaultAddressPrefix) {
return nil, ErrInvalidVaultAddress
if err := utils.IsValidAddr(address); err != nil {
return nil, err
}
config.Address = address
if err := configureTLS(config, secretConfig); err != nil {
if err := utils.ConfigureTLS(config, secretConfig); err != nil {
return nil, err
}
@ -108,7 +85,7 @@ func New(
return nil, err
}
namespace := getVaultParam(secretConfig, api.EnvVaultNamespace)
namespace := utils.GetVaultParam(secretConfig, api.EnvVaultNamespace)
if len(namespace) > 0 {
// use a namespace as a header for setup purposes
// later use it as a key prefix
@ -116,32 +93,20 @@ func New(
defer client.SetNamespace("")
}
var autoAuth bool
var token string
if getVaultParam(secretConfig, AuthMethod) != "" {
token, err = getAuthToken(client, secretConfig)
if err != nil {
closeIdleConnections(config)
return nil, err
}
autoAuth = true
} else {
token = getVaultParam(secretConfig, api.EnvVaultToken)
}
if token == "" {
closeIdleConnections(config)
return nil, ErrVaultTokenNotSet
token, autoAuth, err := utils.Authenticate(client, secretConfig)
if err != nil {
utils.CloseIdleConnections(config)
return nil, fmt.Errorf("failed to get the authentication token: %w", err)
}
client.SetToken(token)
backendPath := getVaultParam(secretConfig, VaultBackendPathKey)
backendPath := utils.GetVaultParam(secretConfig, VaultBackendPathKey)
if backendPath == "" {
backendPath = DefaultBackendPath
}
var isBackendV2 bool
backend := getVaultParam(secretConfig, VaultBackendKey)
backend := utils.GetVaultParam(secretConfig, VaultBackendKey)
if backend == kvVersion1 {
isBackendV2 = false
} else if backend == kvVersion2 {
@ -150,7 +115,7 @@ func New(
// TODO: Handle backends other than kv
isBackendV2, err = isKvV2(client, backendPath)
if err != nil {
closeIdleConnections(config)
utils.CloseIdleConnections(config)
return nil, err
}
}
@ -170,15 +135,29 @@ func (v *vaultSecrets) String() string {
return Name
}
func (v *vaultSecrets) keyPath(secretID, namespace string) keyPath {
if namespace == "" {
func (v *vaultSecrets) keyPath(secretID string, keyContext map[string]string) keyPath {
backendPath := v.backendPath
var namespace string
var ok bool
if namespace, ok = keyContext[secrets.KeyVaultNamespace]; !ok {
namespace = v.namespace
}
var isDestroyKey bool
if v.isKvBackendV2 {
if destroyAllSecrets, ok := keyContext[secrets.DestroySecret]; ok {
// checking for any value seems sufficient to assume 'destroy' is requested
if destroyAllSecrets != "" {
isDestroyKey = true
}
}
}
return keyPath{
backendPath: v.backendPath,
isBackendV2: v.isKvBackendV2,
namespace: namespace,
secretID: secretID,
backendPath: backendPath,
isBackendV2: v.isKvBackendV2,
namespace: namespace,
secretID: secretID,
isDestroyKey: isDestroyKey,
}
}
@ -186,7 +165,7 @@ func (v *vaultSecrets) GetSecret(
secretID string,
keyContext map[string]string,
) (map[string]interface{}, error) {
key := v.keyPath(secretID, keyContext[secrets.KeyVaultNamespace])
key := v.keyPath(secretID, keyContext)
secretValue, err := v.read(key)
if err != nil {
return nil, fmt.Errorf("failed to get secret: %s: %s", key, err)
@ -218,7 +197,7 @@ func (v *vaultSecrets) PutSecret(
}
}
key := v.keyPath(secretID, keyContext[secrets.KeyVaultNamespace])
key := v.keyPath(secretID, keyContext)
if _, err := v.write(key, secretData); err != nil {
return fmt.Errorf("failed to put secret: %s: %s", key, err)
}
@ -229,7 +208,7 @@ func (v *vaultSecrets) DeleteSecret(
secretID string,
keyContext map[string]string,
) error {
key := v.keyPath(secretID, keyContext[secrets.KeyVaultNamespace])
key := v.keyPath(secretID, keyContext)
if _, err := v.delete(key); err != nil {
return fmt.Errorf("failed to delete secret: %s: %s", key, err)
}
@ -355,7 +334,7 @@ func (v *vaultSecrets) renewToken(namespace string) error {
v.client.SetNamespace(namespace)
defer v.client.SetNamespace("")
}
token, err := getAuthToken(v.client, v.config)
token, err := utils.GetAuthToken(v.client, v.config)
if err != nil {
return fmt.Errorf("get auth token for %s namespace: %s", namespace, err)
}
@ -403,131 +382,25 @@ func isKvBackendV2(client *api.Client, backendPath string) (bool, error) {
backendPath)
}
func getVaultParam(secretConfig map[string]interface{}, name string) string {
if tokenIntf, exists := secretConfig[name]; exists {
tokenStr, ok := tokenIntf.(string)
if !ok {
return ""
}
return strings.TrimSpace(tokenStr)
} else {
return strings.TrimSpace(os.Getenv(name))
}
}
func configureTLS(config *api.Config, secretConfig map[string]interface{}) error {
tlsConfig := api.TLSConfig{}
skipVerify := getVaultParam(secretConfig, api.EnvVaultInsecure)
if skipVerify != "" {
insecure, err := strconv.ParseBool(skipVerify)
if err != nil {
return ErrInvalidSkipVerify
}
tlsConfig.Insecure = insecure
}
cacert := getVaultParam(secretConfig, api.EnvVaultCACert)
tlsConfig.CACert = cacert
capath := getVaultParam(secretConfig, api.EnvVaultCAPath)
tlsConfig.CAPath = capath
clientcert := getVaultParam(secretConfig, api.EnvVaultClientCert)
tlsConfig.ClientCert = clientcert
clientkey := getVaultParam(secretConfig, api.EnvVaultClientKey)
tlsConfig.ClientKey = clientkey
tlsserverName := getVaultParam(secretConfig, api.EnvVaultTLSServerName)
tlsConfig.TLSServerName = tlsserverName
return config.ConfigureTLS(&tlsConfig)
}
func getAuthToken(client *api.Client, config map[string]interface{}) (string, error) {
path, _, data, err := authenticate(client, config)
if err != nil {
return "", err
}
secret, err := client.Logical().Write(path, data)
if err != nil {
return "", err
}
if secret == nil || secret.Auth == nil {
return "", errors.New("authentication returned nil auth info")
}
if secret.Auth.ClientToken == "" {
return "", errors.New("authentication returned empty client token")
}
return secret.Auth.ClientToken, err
}
func authenticate(client *api.Client, config map[string]interface{}) (string, http.Header, map[string]interface{}, error) {
method := getVaultParam(config, AuthMethod)
switch method {
case AuthMethodKubernetes:
return authKubernetes(client, config)
}
return "", nil, nil, fmt.Errorf("%s method: %s", method, ErrAuthMethodUnknown)
}
func authKubernetes(client *api.Client, config map[string]interface{}) (string, http.Header, map[string]interface{}, error) {
authConfig, err := buildAuthConfig(config)
if err != nil {
return "", nil, nil, err
}
method, err := kubernetes.NewKubernetesAuthMethod(authConfig)
if err != nil {
return "", nil, nil, err
}
return method.Authenticate(context.TODO(), client)
}
func buildAuthConfig(config map[string]interface{}) (*auth.AuthConfig, error) {
role := getVaultParam(config, AuthKubernetesRole)
if role == "" {
return nil, ErrKubernetesRole
}
mountPath := getVaultParam(config, AuthMountPath)
if mountPath == "" {
mountPath = AuthKubernetesMountPath
}
tokenPath := getVaultParam(config, AuthKubernetesTokenPath)
authMountPath := path.Join("auth", mountPath)
return &auth.AuthConfig{
Logger: hclog.NewNullLogger(),
MountPath: authMountPath,
Config: map[string]interface{}{
"role": role,
"token_path": tokenPath,
},
}, nil
}
func trimSlash(in string) string {
return strings.Trim(in, "/")
}
func init() {
if err := secrets.Register(Name, New); err != nil {
panic(err.Error())
}
}
type keyPath struct {
backendPath string
isBackendV2 bool
namespace string
secretID string
backendPath string
isBackendV2 bool
namespace string
secretID string
isDestroyKey bool
}
func (k keyPath) Path() string {
if k.isBackendV2 {
return path.Join(k.namespace, k.backendPath, kvDataKey, k.secretID)
keyType := kvDataKey
if k.isDestroyKey {
keyType = kvMetadataKey
}
return path.Join(k.namespace, k.backendPath, keyType, k.secretID)
}
return path.Join(k.namespace, k.backendPath, k.secretID)
}
@ -539,13 +412,3 @@ func (k keyPath) Namespace() string {
func (k keyPath) String() string {
return fmt.Sprintf("backendPath=%s, backendV2=%t, namespace=%s, secretID=%s", k.backendPath, k.isBackendV2, k.namespace, k.secretID)
}
func closeIdleConnections(cfg *api.Config) {
if cfg == nil || cfg.HttpClient == nil {
return
}
// close connection in case of error (a fix for go version < 1.12)
if tp, ok := cfg.HttpClient.Transport.(*http.Transport); ok {
tp.CloseIdleConnections()
}
}