velero/internal/resourcepolicies/volume_resources_validator.go

96 lines
2.4 KiB
Go

/*
Copyright The Velero Contributors.
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 resourcepolicies
import (
"fmt"
"io"
"github.com/pkg/errors"
"gopkg.in/yaml.v3"
)
const currentSupportDataVersion = "v1"
type csiVolumeSource struct {
Driver string `yaml:"driver,omitempty"`
}
type nFSVolumeSource struct {
// Server is the hostname or IP address of the NFS server
Server string `yaml:"server,omitempty"`
// Path is the exported NFS share
Path string `yaml:"path,omitempty"`
}
// volumeConditions defined the current format of conditions we parsed
type volumeConditions struct {
Capacity string `yaml:"capacity,omitempty"`
StorageClass []string `yaml:"storageClass,omitempty"`
NFS *nFSVolumeSource `yaml:"nfs,omitempty"`
CSI *csiVolumeSource `yaml:"csi,omitempty"`
VolumeTypes []SupportedVolume `yaml:"volumeTypes,omitempty"`
}
func (c *capacityCondition) validate() error {
// [0, a]
// [a, b]
// [b, 0]
// ==> low <= upper or upper is zero
if (c.capacity.upper.Cmp(c.capacity.lower) >= 0) ||
(!c.capacity.lower.IsZero() && c.capacity.upper.IsZero()) {
return nil
}
return errors.Errorf("illegal values for capacity %v", c.capacity)
}
func (s *storageClassCondition) validate() error {
// validate by yamlv3
return nil
}
func (c *nfsCondition) validate() error {
// validate by yamlv3
return nil
}
func (c *csiCondition) validate() error {
// validate by yamlv3
return nil
}
// decodeStruct restric validate the keys in decoded mappings to exist as fields in the struct being decoded into
func decodeStruct(r io.Reader, s interface{}) error {
dec := yaml.NewDecoder(r)
dec.KnownFields(true)
return dec.Decode(s)
}
// validate check action format
func (a *Action) validate() error {
// validate Type
valid := false
if a.Type == Skip || a.Type == Snapshot || a.Type == FSBackup {
valid = true
}
if !valid {
return fmt.Errorf("invalid action type %s", a.Type)
}
// TODO validate parameters
return nil
}