mirror of
https://github.com/docker/compose.git
synced 2025-11-03 21:25:21 +01:00
106 lines
2.3 KiB
Go
106 lines
2.3 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package secrets
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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)
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// Secret define sensitive data to be bound as file
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type Secret struct {
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Name string
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Keys []string
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}
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// CreateSecretFiles retrieve sensitive data from env and store as plain text a a file in path
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func CreateSecretFiles(secret Secret, path string) error {
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value, ok := os.LookupEnv(secret.Name)
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if !ok {
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return fmt.Errorf("%q variable not set", secret.Name)
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}
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secrets := filepath.Join(path, secret.Name)
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if len(secret.Keys) == 0 {
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// raw Secret
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fmt.Printf("inject Secret %q info %s\n", secret.Name, secrets)
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return ioutil.WriteFile(secrets, []byte(value), 0444)
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}
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var unmarshalled interface{}
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err := json.Unmarshal([]byte(value), &unmarshalled)
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if err != nil {
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return fmt.Errorf("%q Secret is not a valid JSON document: %w", secret.Name, err)
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}
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dict, ok := unmarshalled.(map[string]interface{})
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if !ok {
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return fmt.Errorf("%q Secret is not a JSON dictionary: %w", secret.Name, err)
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}
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err = os.MkdirAll(secrets, 0755)
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if err != nil {
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return err
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}
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if contains(secret.Keys, "*") {
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var keys []string
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for k := range dict {
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keys = append(keys, k)
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}
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secret.Keys = keys
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}
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for _, k := range secret.Keys {
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path := filepath.Join(secrets, k)
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fmt.Printf("inject Secret %q info %s\n", k, path)
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v, ok := dict[k]
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if !ok {
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return fmt.Errorf("%q Secret has no %q key", secret.Name, k)
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}
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var raw []byte
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if s, ok := v.(string); ok {
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raw = []byte(s)
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} else {
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raw, err = json.Marshal(v)
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if err != nil {
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return err
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}
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}
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err = ioutil.WriteFile(path, raw, 0444)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func contains(keys []string, s string) bool {
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for _, k := range keys {
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if k == s {
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return true
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}
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}
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return false
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}
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