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Merge pull request #48043 from xiangpengzhao/validate-storage-backend

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Automatic merge from submit-queue (batch tested with PRs 48043, 48200, 49139, 36238, 49130)

Validate --storage-backend type.

**What this PR does / why we need it**:
Validate --storage-backend type as early as possible.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #47517
This PR is as per https://github.com/kubernetes/kubernetes/pull/47517/files#r121975646

**Special notes for your reviewer**:
/cc @justinsb 

**Release note**:

```release-note
NONE
```
This commit is contained in:
Kubernetes Submit Queue 2017-07-19 01:57:24 -07:00 committed by GitHub
commit 8293a7d5a2
2 changed files with 12 additions and 0 deletions
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1
staging/src/k8s.io/apiserver/pkg/server/options/BUILD
View File

@ -51,6 +51,7 @@ go_library(
"//vendor/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/runtime/serializer:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/net:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
"//vendor/k8s.io/apiserver/pkg/admission:go_default_library",
"//vendor/k8s.io/apiserver/pkg/admission/initializer:go_default_library",
"//vendor/k8s.io/apiserver/pkg/audit:go_default_library",

11
staging/src/k8s.io/apiserver/pkg/server/options/etcd.go
View File

@ -22,6 +22,7 @@ import (
"github.com/spf13/pflag"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apiserver/pkg/registry/generic"
genericregistry "k8s.io/apiserver/pkg/registry/generic/registry"
"k8s.io/apiserver/pkg/server"
@ -47,6 +48,12 @@ type EtcdOptions struct {
DefaultWatchCacheSize int
}
var storageTypes = sets.NewString(
storagebackend.StorageTypeUnset,
storagebackend.StorageTypeETCD2,
storagebackend.StorageTypeETCD3,
)
func NewEtcdOptions(backendConfig *storagebackend.Config) *EtcdOptions {
return &EtcdOptions{
StorageConfig: *backendConfig,
@ -64,6 +71,10 @@ func (s *EtcdOptions) Validate() []error {
allErrors = append(allErrors, fmt.Errorf("--etcd-servers must be specified"))
}
if !storageTypes.Has(s.StorageConfig.Type) {
allErrors = append(allErrors, fmt.Errorf("--storage-backend invalid, must be 'etcd3' or 'etcd2'. If not specified, it will default to 'etcd3'"))
}
return allErrors
}