62 lines
2.1 KiB
Go
62 lines
2.1 KiB
Go
// Copyright 2016 CNI 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 version
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/containernetworking/cni/pkg/types"
|
|
"github.com/containernetworking/cni/pkg/types/020"
|
|
"github.com/containernetworking/cni/pkg/types/current"
|
|
)
|
|
|
|
// Current reports the version of the CNI spec implemented by this library
|
|
func Current() string {
|
|
return "0.3.1"
|
|
}
|
|
|
|
// Legacy PluginInfo describes a plugin that is backwards compatible with the
|
|
// CNI spec version 0.1.0. In particular, a runtime compiled against the 0.1.0
|
|
// library ought to work correctly with a plugin that reports support for
|
|
// Legacy versions.
|
|
//
|
|
// Any future CNI spec versions which meet this definition should be added to
|
|
// this list.
|
|
var Legacy = PluginSupports("0.1.0", "0.2.0")
|
|
var All = PluginSupports("0.1.0", "0.2.0", "0.3.0", "0.3.1")
|
|
|
|
var resultFactories = []struct {
|
|
supportedVersions []string
|
|
newResult types.ResultFactoryFunc
|
|
}{
|
|
{current.SupportedVersions, current.NewResult},
|
|
{types020.SupportedVersions, types020.NewResult},
|
|
}
|
|
|
|
// Finds a Result object matching the requested version (if any) and asks
|
|
// that object to parse the plugin result, returning an error if parsing failed.
|
|
func NewResult(version string, resultBytes []byte) (types.Result, error) {
|
|
reconciler := &Reconciler{}
|
|
for _, resultFactory := range resultFactories {
|
|
err := reconciler.CheckRaw(version, resultFactory.supportedVersions)
|
|
if err == nil {
|
|
// Result supports this version
|
|
return resultFactory.newResult(resultBytes)
|
|
}
|
|
}
|
|
|
|
return nil, fmt.Errorf("unsupported CNI result version %q", version)
|
|
}
|