mirror of
https://github.com/Luzifer/yaml-vault.git
synced 2024-10-18 06:44:25 +00:00
Improve code quality
Signed-off-by: Knut Ahlers <knut@ahlers.me>
This commit is contained in:
parent
1540ea328d
commit
1cd015ad67
GPG key ID:
DC2729FDD34BE99E
1 changed files with 44 additions and 57 deletions
101
main.go
101
main.go
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@ -4,29 +4,33 @@ import (
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"bytes"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"strings"
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"text/template"
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"gopkg.in/yaml.v2"
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"github.com/Luzifer/rconfig"
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"github.com/hashicorp/vault/api"
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"github.com/mitchellh/go-homedir"
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"github.com/pkg/errors"
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log "github.com/sirupsen/logrus"
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korvike "github.com/Luzifer/korvike/functions"
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"github.com/Luzifer/rconfig"
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)
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var (
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cfg = struct {
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File string `flag:"file,f" default:"vault.yaml" description:"File to import from / export to"`
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File string `flag:"file,f" default:"vault.yaml" description:"File to import from / export to" validate:"non-zero"`
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Import bool `flag:"import" default:"false" description:"Enable importing data into Vault"`
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Export bool `flag:"export" default:"false" description:"Enable exporting data from Vault"`
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ExportPaths []string `flag:"export-paths" default:"secret" description:"Which paths to export"`
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IgnoreErrors bool `flag:"ignore-errors" default:"false" description:"Do not exit on read/write errors"`
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LogLevel string `flag:"log-level" default:"info" description:"Log level (debug, info, warn, error, fatal)"`
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VaultAddress string `flag:"vault-addr" env:"VAULT_ADDR" default:"https://127.0.0.1:8200" description:"Vault API address"`
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VaultToken string `flag:"vault-token" env:"VAULT_TOKEN" vardefault:"vault-token" description:"Specify a token to use instead of app-id auth"`
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VaultToken string `flag:"vault-token" env:"VAULT_TOKEN" vardefault:"vault-token" description:"Specify a token to use instead of app-id auth" validate:"non-zero"`
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VersionAndExit bool `flag:"version" default:"false" description:"Print program version and exit"`
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Verbose bool `flag:"verbose,v" default:"false" description:"Print verbose output"`
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Verbose bool `flag:"verbose,v" default:"false" description:"Print verbose output [DEPRECATED]"`
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}{}
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version = "dev"
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@ -44,16 +48,6 @@ type importField struct {
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type execFunction func(*api.Client) error
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func debug(format string, v ...interface{}) {
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if cfg.Verbose {
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log.Printf(format, v...)
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}
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}
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func info(format string, v ...interface{}) {
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log.Printf(format, v...)
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}
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func vaultTokenFromDisk() string {
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vf, err := homedir.Expand("~/.vault-token")
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if err != nil {
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@ -72,30 +66,35 @@ func init() {
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rconfig.SetVariableDefaults(map[string]string{
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"vault-token": vaultTokenFromDisk(),
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})
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rconfig.Parse(&cfg)
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if err := rconfig.ParseAndValidate(&cfg); err != nil {
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log.WithError(err).Fatal("Unable to parse commandline options")
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}
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if cfg.VersionAndExit {
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fmt.Printf("vault2env %s\n", version)
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os.Exit(0)
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}
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if cfg.VaultToken == "" {
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log.Fatalf("[ERR] You need to set vault-token")
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if l, err := log.ParseLevel(cfg.LogLevel); err != nil {
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log.WithError(err).Fatal("Unable to parse log level")
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} else {
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log.SetLevel(l)
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}
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if cfg.File == "" {
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log.Fatalf("[ERR] You need to specify a file")
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if cfg.Verbose {
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// Backwards compatibility
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log.SetLevel(log.DebugLevel)
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}
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if cfg.Export == cfg.Import {
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log.Fatalf("[ERR] You need to either import or export")
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log.Fatal("You need to either import or export")
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}
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if _, err := os.Stat(cfg.File); (err == nil && cfg.Export) || (err != nil && cfg.Import) {
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if cfg.Export {
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log.Fatalf("[ERR] Output file exists, stopping now.")
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log.Fatal("Output file exists, stopping now.")
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}
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log.Fatalf("[ERR] Input file does not exist, stopping now.")
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log.Fatal("Input file does not exist, stopping now.")
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}
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}
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@ -104,7 +103,7 @@ func main() {
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Address: cfg.VaultAddress,
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})
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if err != nil {
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log.Fatalf("Unable to create client: %s", err)
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log.WithError(err).Fatal("Unable to create client")
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}
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client.SetToken(cfg.VaultToken)
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@ -118,7 +117,7 @@ func main() {
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}
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if err = ex(client); err != nil {
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log.Fatalf("[ERR] %s", err)
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log.WithError(err).Fatal("Unable to execute requested action")
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}
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}
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@ -135,13 +134,13 @@ func exportFromVault(client *api.Client) error {
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}
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if err := readRecurse(client, path, &out); err != nil {
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return err
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return errors.Wrap(err, "Unable to read from Vault")
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}
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}
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data, err := yaml.Marshal(out)
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if err != nil {
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return err
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return errors.Wrap(err, "Unable to marshal yaml")
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}
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return ioutil.WriteFile(cfg.File, data, 0600)
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@ -151,29 +150,29 @@ func readRecurse(client *api.Client, path string, out *importFile) error {
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if !strings.HasSuffix(path, "/") {
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secret, err := client.Logical().Read(path)
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if err != nil {
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return err
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return errors.Wrapf(err, "Unable to read path %q", path)
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}
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if secret == nil {
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if cfg.IgnoreErrors {
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info("Unable to read %s: %#v", path, secret)
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log.WithField("path", path).Info("Unable to read nil secret")
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return nil
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}
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return fmt.Errorf("Unable to read %s: %#v", path, secret)
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return errors.Errorf("Unable to read non-existent path %s", path)
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}
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out.Keys = append(out.Keys, importField{Key: path, Values: secret.Data})
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debug("Successfully read data from key '%s'", path)
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log.WithField("path", path).Debug("Successfully read data from key")
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return nil
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}
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secret, err := client.Logical().List(path)
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if err != nil {
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if cfg.IgnoreErrors {
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info("Error reading %s: %s", path, err)
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log.WithError(err).WithField("path", path).Error("Error reading secret")
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return nil
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}
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return fmt.Errorf("Error reading %s: %s", path, err)
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return errors.Wrapf(err, "Error reading %s", path)
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}
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if secret != nil && secret.Data["keys"] != nil {
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@ -191,37 +190,38 @@ func readRecurse(client *api.Client, path string, out *importFile) error {
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func importToVault(client *api.Client) error {
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keysRaw, err := ioutil.ReadFile(cfg.File)
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if err != nil {
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return err
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return errors.Wrap(err, "Unable to read input file")
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}
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keysRaw, err = parseImportFile(keysRaw)
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if err != nil {
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return err
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return errors.Wrap(err, "Unable to parse input file")
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}
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var keys importFile
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if err := yaml.Unmarshal(keysRaw, &keys); err != nil {
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return err
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return errors.Wrap(err, "Unable to unmarshal input file")
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}
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for _, field := range keys.Keys {
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if field.State == "absent" {
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if _, err := client.Logical().Delete(field.Key); err != nil {
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if cfg.IgnoreErrors {
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info("Error while deleting key '%s': %s", field.Key, err)
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log.WithError(err).WithField("path", field.Key).Error("Error while deleting key")
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continue
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}
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return err
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return errors.Wrapf(err, "Unable to delete path %q", field.Key)
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}
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log.WithField("path", field.Key).Info("Successfully deleted key")
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} else {
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if _, err := client.Logical().Write(field.Key, field.Values); err != nil {
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if cfg.IgnoreErrors {
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info("Error while writing data to key '%s': %s", field.Key, err)
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log.WithError(err).WithField("path", field.Key).Error("Error while writing data to key")
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continue
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}
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return err
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return errors.Wrapf(err, "Unable to write path %q", field.Key)
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}
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debug("Successfully wrote data to key '%s'", field.Key)
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log.WithField("path", field.Key).Debug("Successfully wrote data to key")
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}
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}
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@ -229,25 +229,12 @@ func importToVault(client *api.Client) error {
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}
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func parseImportFile(in []byte) (out []byte, err error) {
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funcMap := template.FuncMap{
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"env": func(name string, v ...string) string {
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defaultValue := ""
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if len(v) > 0 {
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defaultValue = v[0]
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}
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if value, ok := os.LookupEnv(name); ok {
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return value
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}
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return defaultValue
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},
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}
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t, err := template.New("input file").Funcs(funcMap).Parse(string(in))
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t, err := template.New("input file").Funcs(korvike.GetFunctionMap()).Parse(string(in))
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if err != nil {
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return nil, err
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return nil, errors.Wrap(err, "Unable to parse template")
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}
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buf := bytes.NewBuffer([]byte{})
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err = t.Execute(buf, nil)
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return buf.Bytes(), err
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return buf.Bytes(), errors.Wrap(err, "Unable to execute template")
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}
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