tailscale/cmd/get-authkey/main.go

76 lines
2.0 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
// get-authkey allocates an authkey using an OAuth API client
// https://tailscale.com/s/oauth-clients and prints it
// to stdout for scripts to capture and use.
package main
import (
"cmp"
"context"
"flag"
"fmt"
"log"
"os"
"strings"
"golang.org/x/oauth2/clientcredentials"
"tailscale.com/client/tailscale"
)
func main() {
// Required to use our client API. We're fine with the instability since the
// client lives in the same repo as this code.
tailscale.I_Acknowledge_This_API_Is_Unstable = true
reusable := flag.Bool("reusable", false, "allocate a reusable authkey")
ephemeral := flag.Bool("ephemeral", false, "allocate an ephemeral authkey")
preauth := flag.Bool("preauth", true, "set the authkey as pre-authorized")
tags := flag.String("tags", "", "comma-separated list of tags to apply to the authkey")
flag.Parse()
clientID := os.Getenv("TS_API_CLIENT_ID")
clientSecret := os.Getenv("TS_API_CLIENT_SECRET")
if clientID == "" || clientSecret == "" {
log.Fatal("TS_API_CLIENT_ID and TS_API_CLIENT_SECRET must be set")
}
if *tags == "" {
log.Fatal("at least one tag must be specified")
}
baseURL := cmp.Or(os.Getenv("TS_BASE_URL"), "https://api.tailscale.com")
credentials := clientcredentials.Config{
ClientID: clientID,
ClientSecret: clientSecret,
TokenURL: baseURL + "/api/v2/oauth/token",
Scopes: []string{"device"},
}
ctx := context.Background()
tsClient := tailscale.NewClient("-", nil)
tsClient.UserAgent = "tailscale-get-authkey"
tsClient.HTTPClient = credentials.Client(ctx)
tsClient.BaseURL = baseURL
caps := tailscale.KeyCapabilities{
Devices: tailscale.KeyDeviceCapabilities{
Create: tailscale.KeyDeviceCreateCapabilities{
Reusable: *reusable,
Ephemeral: *ephemeral,
Preauthorized: *preauth,
Tags: strings.Split(*tags, ","),
},
},
}
authkey, _, err := tsClient.CreateKey(ctx, caps)
if err != nil {
log.Fatal(err.Error())
}
fmt.Println(authkey)
}