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81 lines
1.6 KiB
81 lines
1.6 KiB
package bootstrap
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import (
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"encoding/json"
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"io"
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"io/ioutil"
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"net/http"
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"os"
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"path/filepath"
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"github.com/pkg/errors"
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"github.com/rancher/k3s/pkg/daemons/config"
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)
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func Handler(bootstrap *config.ControlRuntimeBootstrap) http.Handler {
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return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
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rw.Header().Set("Content-Type", "application/json")
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Write(rw, bootstrap)
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})
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}
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func Write(w io.Writer, bootstrap *config.ControlRuntimeBootstrap) error {
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paths, err := objToMap(bootstrap)
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if err != nil {
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return nil
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}
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dataMap := map[string][]byte{}
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for pathKey, path := range paths {
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if path == "" {
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continue
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}
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data, err := ioutil.ReadFile(path)
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if err != nil {
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return errors.Wrapf(err, "failed to read %s", path)
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}
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dataMap[pathKey] = data
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}
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return json.NewEncoder(w).Encode(dataMap)
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}
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func Read(r io.Reader, bootstrap *config.ControlRuntimeBootstrap) error {
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paths, err := objToMap(bootstrap)
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if err != nil {
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return err
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}
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files := map[string][]byte{}
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if err := json.NewDecoder(r).Decode(&files); err != nil {
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return err
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}
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for pathKey, data := range files {
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path, ok := paths[pathKey]
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if !ok {
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continue
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}
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if err := os.MkdirAll(filepath.Dir(path), 0700); err != nil {
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return errors.Wrapf(err, "failed to mkdir %s", filepath.Dir(path))
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}
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if err := ioutil.WriteFile(path, data, 0600); err != nil {
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return errors.Wrapf(err, "failed to write to %s", path)
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}
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}
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return nil
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}
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func objToMap(obj interface{}) (map[string]string, error) {
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bytes, err := json.Marshal(obj)
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if err != nil {
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return nil, err
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}
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data := map[string]string{}
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return data, json.Unmarshal(bytes, &data)
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}
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