mirror of https://github.com/k3s-io/k3s
38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
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// Copyright 2016 CNI authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package version
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import (
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"encoding/json"
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"fmt"
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)
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// ConfigDecoder can decode the CNI version available in network config data
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type ConfigDecoder struct{}
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func (*ConfigDecoder) Decode(jsonBytes []byte) (string, error) {
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var conf struct {
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CNIVersion string `json:"cniVersion"`
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}
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err := json.Unmarshal(jsonBytes, &conf)
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if err != nil {
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return "", fmt.Errorf("decoding version from network config: %s", err)
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}
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if conf.CNIVersion == "" {
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return "0.1.0", nil
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}
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return conf.CNIVersion, nil
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}
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