mirror of
https://github.com/hanzoai/volume.git
synced 2026-10-30 14:55:30 +00:00
zeekay
b61441f7d7
A fork of Rancher's local-path-provisioner at v0.0.36. The behaviour is unchanged and deliberately so — a directory on the node a pod lands on is the right thing for a disk. What changes is identity. The provisioner answers to hanzo.ai/volume rather than rancher.io/local-path. That is not branding: two provisioners sharing one name race for the same claims, and a stock k3s carries the upstream one, so a cluster running both would settle our storage by chance. Data lives at /var/lib/hanzo/volume, so reading a Hanzo cluster does not mean learning another vendor's directory. Apache-2.0 as published, unaltered, with Rancher's attribution in NOTICE. The README says what this is not: durability. A volume here dies with its node. That is hanzoai/replicate's question, one layer up, and keeping the two apart is what lets the disk stay this simple.
103 lines
3.1 KiB
Go
103 lines
3.1 KiB
Go
/*
|
|
Copyright 2017 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 mergepatch
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"reflect"
|
|
)
|
|
|
|
var (
|
|
ErrBadJSONDoc = errors.New("invalid JSON document")
|
|
ErrNoListOfLists = errors.New("lists of lists are not supported")
|
|
ErrBadPatchFormatForPrimitiveList = errors.New("invalid patch format of primitive list")
|
|
ErrBadPatchFormatForRetainKeys = errors.New("invalid patch format of retainKeys")
|
|
ErrBadPatchFormatForSetElementOrderList = errors.New("invalid patch format of setElementOrder list")
|
|
ErrPatchContentNotMatchRetainKeys = errors.New("patch content doesn't match retainKeys list")
|
|
ErrUnsupportedStrategicMergePatchFormat = errors.New("strategic merge patch format is not supported")
|
|
)
|
|
|
|
func ErrNoMergeKey(m map[string]interface{}, k string) error {
|
|
return fmt.Errorf("map: %v does not contain declared merge key: %s", m, k)
|
|
}
|
|
|
|
func ErrBadArgType(expected, actual interface{}) error {
|
|
return fmt.Errorf("expected a %s, but received a %s",
|
|
reflect.TypeOf(expected),
|
|
reflect.TypeOf(actual))
|
|
}
|
|
|
|
func ErrBadArgKind(expected, actual interface{}) error {
|
|
var expectedKindString, actualKindString string
|
|
if expected == nil {
|
|
expectedKindString = "nil"
|
|
} else {
|
|
expectedKindString = reflect.TypeOf(expected).Kind().String()
|
|
}
|
|
if actual == nil {
|
|
actualKindString = "nil"
|
|
} else {
|
|
actualKindString = reflect.TypeOf(actual).Kind().String()
|
|
}
|
|
return fmt.Errorf("expected a %s, but received a %s", expectedKindString, actualKindString)
|
|
}
|
|
|
|
func ErrBadPatchType(t interface{}, m map[string]interface{}) error {
|
|
return fmt.Errorf("unknown patch type: %s in map: %v", t, m)
|
|
}
|
|
|
|
// IsPreconditionFailed returns true if the provided error indicates
|
|
// a precondition failed.
|
|
func IsPreconditionFailed(err error) bool {
|
|
_, ok := err.(ErrPreconditionFailed)
|
|
return ok
|
|
}
|
|
|
|
type ErrPreconditionFailed struct {
|
|
message string
|
|
}
|
|
|
|
func NewErrPreconditionFailed(target map[string]interface{}) ErrPreconditionFailed {
|
|
s := fmt.Sprintf("precondition failed for: %v", target)
|
|
return ErrPreconditionFailed{s}
|
|
}
|
|
|
|
func (err ErrPreconditionFailed) Error() string {
|
|
return err.message
|
|
}
|
|
|
|
type ErrConflict struct {
|
|
message string
|
|
}
|
|
|
|
func NewErrConflict(patch, current string) ErrConflict {
|
|
s := fmt.Sprintf("patch:\n%s\nconflicts with changes made from original to current:\n%s\n", patch, current)
|
|
return ErrConflict{s}
|
|
}
|
|
|
|
func (err ErrConflict) Error() string {
|
|
return err.message
|
|
}
|
|
|
|
// IsConflict returns true if the provided error indicates
|
|
// a conflict between the patch and the current configuration.
|
|
func IsConflict(err error) bool {
|
|
_, ok := err.(ErrConflict)
|
|
return ok
|
|
}
|