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Merge pull request #467 from davidz627/fix/vvc
Implement ValidateVolumeCapabilities and refactor parameter handling for more comprehensive validation of existing disks in all cloud calls
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Original file line number | Diff line number | Diff line change |
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/* | ||
Copyright 2020 The Kubernetes Authors. | ||
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 common | ||
|
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import ( | ||
"fmt" | ||
"strings" | ||
) | ||
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const ( | ||
ParameterKeyType = "type" | ||
ParameterKeyReplicationType = "replication-type" | ||
ParameterKeyDiskEncryptionKmsKey = "disk-encryption-kms-key" | ||
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replicationTypeNone = "none" | ||
) | ||
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// DiskParameters contains normalized and defaulted disk parameters | ||
type DiskParameters struct { | ||
// Values: pd-standard OR pd-ssd | ||
// Default: pd-standard | ||
DiskType string | ||
// Values: "none", regional-pd | ||
// Default: "none" | ||
ReplicationType string | ||
// Values: {string} | ||
// Default: "" | ||
DiskEncryptionKMSKey string | ||
} | ||
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// ExtractAndDefaultParameters will take the relevant parameters from a map and | ||
// put them into a well defined struct making sure to default unspecified fields | ||
func ExtractAndDefaultParameters(parameters map[string]string) (DiskParameters, error) { | ||
p := DiskParameters{ | ||
DiskType: "pd-standard", // Default | ||
ReplicationType: replicationTypeNone, // Default | ||
DiskEncryptionKMSKey: "", // Default | ||
} | ||
for k, v := range parameters { | ||
if k == "csiProvisionerSecretName" || k == "csiProvisionerSecretNamespace" { | ||
// These are hardcoded secrets keys required to function but not needed by GCE PD | ||
continue | ||
} | ||
switch strings.ToLower(k) { | ||
case ParameterKeyType: | ||
if v != "" { | ||
p.DiskType = strings.ToLower(v) | ||
} | ||
case ParameterKeyReplicationType: | ||
if v != "" { | ||
p.ReplicationType = strings.ToLower(v) | ||
} | ||
case ParameterKeyDiskEncryptionKmsKey: | ||
// Resource names (e.g. "keyRings", "cryptoKeys", etc.) are case sensitive, so do not change case | ||
p.DiskEncryptionKMSKey = v | ||
default: | ||
return p, fmt.Errorf("parameters contains invalid option %q", k) | ||
} | ||
} | ||
return p, nil | ||
} |
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Original file line number | Diff line number | Diff line change |
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/* | ||
Copyright 2020 The Kubernetes Authors. | ||
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. | ||
*/ | ||
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package common | ||
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import ( | ||
"reflect" | ||
"testing" | ||
) | ||
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func TestExtractAndDefaultParameters(t *testing.T) { | ||
tests := []struct { | ||
name string | ||
parameters map[string]string | ||
expectParams DiskParameters | ||
expectErr bool | ||
}{ | ||
{ | ||
name: "defaults", | ||
parameters: map[string]string{}, | ||
expectParams: DiskParameters{ | ||
DiskType: "pd-standard", | ||
ReplicationType: "none", | ||
DiskEncryptionKMSKey: "", | ||
}, | ||
}, | ||
{ | ||
name: "specified empties", | ||
parameters: map[string]string{ParameterKeyType: "", ParameterKeyReplicationType: "", ParameterKeyDiskEncryptionKmsKey: ""}, | ||
expectParams: DiskParameters{ | ||
DiskType: "pd-standard", | ||
ReplicationType: "none", | ||
DiskEncryptionKMSKey: "", | ||
}, | ||
}, | ||
{ | ||
name: "random keys", | ||
parameters: map[string]string{ParameterKeyType: "", "foo": "", ParameterKeyDiskEncryptionKmsKey: ""}, | ||
expectErr: true, | ||
}, | ||
{ | ||
name: "real values", | ||
parameters: map[string]string{ParameterKeyType: "pd-ssd", ParameterKeyReplicationType: "regional-pd", ParameterKeyDiskEncryptionKmsKey: "foo/key"}, | ||
expectParams: DiskParameters{ | ||
DiskType: "pd-ssd", | ||
ReplicationType: "regional-pd", | ||
DiskEncryptionKMSKey: "foo/key", | ||
}, | ||
}, | ||
{ | ||
name: "partial spec", | ||
parameters: map[string]string{ParameterKeyDiskEncryptionKmsKey: "foo/key"}, | ||
expectParams: DiskParameters{ | ||
DiskType: "pd-standard", | ||
ReplicationType: "none", | ||
DiskEncryptionKMSKey: "foo/key", | ||
}, | ||
}, | ||
} | ||
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for _, tc := range tests { | ||
t.Run(tc.name, func(t *testing.T) { | ||
p, err := ExtractAndDefaultParameters(tc.parameters) | ||
if gotErr := err != nil; gotErr != tc.expectErr { | ||
t.Fatalf("ExtractAndDefaultParameters(%+v) = %v; expectedErr: %v", tc.parameters, err, tc.expectErr) | ||
} | ||
if err != nil { | ||
return | ||
} | ||
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if !reflect.DeepEqual(p, tc.expectParams) { | ||
t.Errorf("ExtractAndDefaultParameters(%+v) = %v; expected params: %v", tc.parameters, p, tc.expectParams) | ||
} | ||
}) | ||
} | ||
} |
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