etcd/server/config/v2_deprecation.go

51 lines
1.5 KiB
Go

// Copyright 2021 The etcd 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 config
type V2DeprecationEnum string
const (
// No longer supported in v3.6
V2_DEPR_0_NOT_YET = V2DeprecationEnum("not-yet")
// Default in v3.6. Meaningful v2 state is not allowed.
// The V2 files are maintained for v3.5 rollback.
V2_DEPR_1_WRITE_ONLY = V2DeprecationEnum("write-only")
// V2store is WIPED if found !!!
V2_DEPR_1_WRITE_ONLY_DROP = V2DeprecationEnum("write-only-drop-data")
// V2store is neither written nor read. Usage of this configuration is blocking
// ability to rollback to etcd v3.5.
V2_DEPR_2_GONE = V2DeprecationEnum("gone")
V2_DEPR_DEFAULT = V2_DEPR_1_WRITE_ONLY
)
func (e V2DeprecationEnum) IsAtLeast(v2d V2DeprecationEnum) bool {
return e.level() >= v2d.level()
}
func (e V2DeprecationEnum) level() int {
switch e {
case V2_DEPR_0_NOT_YET:
return 0
case V2_DEPR_1_WRITE_ONLY:
return 1
case V2_DEPR_1_WRITE_ONLY_DROP:
return 2
case V2_DEPR_2_GONE:
return 3
}
panic("Unknown V2DeprecationEnum: " + e)
}