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vault2env/main.go
2016-05-29 01:35:17 +02:00

61 lines
1.6 KiB
Go

package main
import (
"fmt"
"log"
"github.com/Luzifer/rconfig"
"github.com/hashicorp/vault/api"
)
var (
cfg = struct {
VaultAddress string `flag:"vault-addr" env:"VAULT_ADDR" default:"https://127.0.0.1:8200" description:"Vault API address"`
VaultAppID string `flag:"vault-app-id" env:"VAULT_APP_ID" default:"" description:"The app-id to use for authentication"`
VaultUserID string `flag:"vault-user-id" env:"VAULT_USER_ID" default:"" description:"The user-id to use for authentication"`
}{}
version = "dev"
)
func init() {
rconfig.Parse(&cfg)
if cfg.VaultAppID == "" || cfg.VaultUserID == "" {
log.Fatalf("[ERR] You need to set vault-app-id and vault-user-id")
}
if len(rconfig.Args()) != 2 {
log.Fatalf("[ERR] Exactly one argument is supported: The path of the key containing env variables")
}
}
func main() {
client, err := api.NewClient(&api.Config{
Address: cfg.VaultAddress,
})
if err != nil {
log.Fatalf("Unable to create client: %s", err)
}
loginSecret, err := client.Logical().Write("auth/app-id/login/"+cfg.VaultAppID, map[string]interface{}{
"user_id": cfg.VaultUserID,
})
if err != nil || loginSecret.Auth == nil {
log.Fatalf("Unable to fetch authentication token: %s", err)
}
client.SetToken(loginSecret.Auth.ClientToken)
data, err := client.Logical().Read(rconfig.Args()[1])
if err != nil {
log.Fatalf("Unable to fetch data: %s", err)
}
for k, v := range data.Data {
fmt.Printf("export %s=\"%s\"\n", k, v)
}
if err := client.Auth().Token().RevokeSelf(client.Token()); err != nil {
log.Printf("Unable to clean up: %s", err)
}
}