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terraform.go
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terraform.go
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/*
Copyright (C) 2021-2023, Kubefirst
This program is licensed under MIT.
See the LICENSE file for more details.
*/
package vault
import (
"context"
"fmt"
"os"
"strings"
vaultapi "github.com/hashicorp/vault/api"
"github.com/rs/zerolog/log"
)
// IterSecrets returns the contents of Vault secret data using the key/value contents of
// chosen paths in the key value store in the form of export statements that can be leveraged
// in a bash shell to set environment variables
//
// If the argument at fileName is an existing file, it will be removed
func (conf *VaultConfiguration) IterSecrets(
endpoint string,
token string,
fileName string,
) error {
_, err := os.Stat(fileName)
if err != nil {
log.Info().Msgf("file %s does not exist, continuing", fileName)
} else {
err := os.Remove(fileName)
if err != nil {
return fmt.Errorf("error deleting file: %s", err)
}
}
result := make([]map[string]interface{}, 0)
conf.Config.Address = endpoint
vaultClient, err := vaultapi.NewClient(&conf.Config)
if err != nil {
return err
}
vaultClient.SetToken(token)
if strings.Contains(endpoint, "http://") {
vaultClient.CloneConfig().ConfigureTLS(&vaultapi.TLSConfig{
Insecure: true,
})
}
log.Info().Msg("created vault client")
secretsToUse := []string{"atlantis"}
for _, s := range secretsToUse {
resp, err := vaultClient.KVv2("secret").Get(context.Background(), s)
if err != nil {
return err
}
result = append(result, resp.Data)
}
_, err = os.Create(fileName)
if err != nil {
return fmt.Errorf("error creating file: %s", err)
}
f, err := os.OpenFile(fileName, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
return fmt.Errorf("error opening file: %s", err)
}
defer f.Close()
for _, m := range result {
for k, v := range m {
if k == "VAULT_ADDR" {
_, err = f.WriteString(fmt.Sprintf("export %s=\"%v\"\n", k, endpoint))
if err != nil {
return fmt.Errorf("error writing to file: %s", err)
}
} else {
_, err = f.WriteString(fmt.Sprintf("export %s=\"%v\"\n", k, strings.TrimSuffix(v.(string), "\n")))
if err != nil {
return fmt.Errorf("error writing to file: %s", err)
}
}
}
}
return nil
}