Files
photoprism/internal/commands/cluster_register.go
2025-09-19 01:13:32 +02:00

298 lines
9.6 KiB
Go

package commands
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"os"
"path/filepath"
"time"
"github.com/urfave/cli/v2"
yaml "gopkg.in/yaml.v2"
"github.com/photoprism/photoprism/internal/config"
"github.com/photoprism/photoprism/internal/service/cluster"
"github.com/photoprism/photoprism/pkg/clean"
"github.com/photoprism/photoprism/pkg/fs"
"github.com/photoprism/photoprism/pkg/service/http/header"
"github.com/photoprism/photoprism/pkg/txt/report"
)
// flags for register
var (
regNameFlag = &cli.StringFlag{Name: "name", Usage: "node `NAME` (lowercase letters, digits, hyphens)"}
regRoleFlag = &cli.StringFlag{Name: "role", Usage: "node `ROLE` (instance, service)", Value: "instance"}
regIntUrlFlag = &cli.StringFlag{Name: "advertise-url", Usage: "internal service `URL`"}
regLabelFlag = &cli.StringSliceFlag{Name: "label", Usage: "`k=v` label (repeatable)"}
regRotateDatabase = &cli.BoolFlag{Name: "rotate", Usage: "rotates the node's database password"}
regRotateSec = &cli.BoolFlag{Name: "rotate-secret", Usage: "rotates the node's secret used for JWT"}
regPortalURL = &cli.StringFlag{Name: "portal-url", Usage: "Portal base `URL` (defaults to config)"}
regPortalTok = &cli.StringFlag{Name: "join-token", Usage: "Portal access `TOKEN` (defaults to config)"}
regWriteConf = &cli.BoolFlag{Name: "write-config", Usage: "persists returned secrets and DB settings to local config"}
regForceFlag = &cli.BoolFlag{Name: "force", Aliases: []string{"f"}, Usage: "confirm actions that may overwrite/replace local data (e.g., --write-config)"}
)
// ClusterRegisterCommand registers a node with the Portal via HTTP.
var ClusterRegisterCommand = &cli.Command{
Name: "register",
Usage: "Registers/rotates a node via Portal (HTTP)",
Flags: append(append([]cli.Flag{regNameFlag, regRoleFlag, regIntUrlFlag, regLabelFlag, regRotateDatabase, regRotateSec, regPortalURL, regPortalTok, regWriteConf, regForceFlag, JsonFlag}, report.CliFlags...)),
Action: clusterRegisterAction,
}
func clusterRegisterAction(ctx *cli.Context) error {
return CallWithDependencies(ctx, func(conf *config.Config) error {
// Resolve inputs
name := clean.TypeLowerDash(ctx.String("name"))
if name == "" { // default from config if set
name = clean.TypeLowerDash(conf.NodeName())
}
if name == "" {
return cli.Exit(fmt.Errorf("node name is required (use --name or set node-name)"), 2)
}
nodeRole := clean.TypeLowerDash(ctx.String("role"))
switch nodeRole {
case "instance", "service":
default:
return cli.Exit(fmt.Errorf("invalid --role (must be instance or service)"), 2)
}
portalURL := ctx.String("portal-url")
if portalURL == "" {
portalURL = conf.PortalUrl()
}
if portalURL == "" {
return cli.Exit(fmt.Errorf("portal URL is required (use --portal-url or set portal-url)"), 2)
}
token := ctx.String("join-token")
if token == "" {
token = conf.JoinToken()
}
if token == "" {
return cli.Exit(fmt.Errorf("portal token is required (use --join-token or set join-token)"), 2)
}
body := map[string]interface{}{
"nodeName": name,
"nodeRole": nodeRole,
"labels": parseLabelSlice(ctx.StringSlice("label")),
"advertiseUrl": ctx.String("advertise-url"),
"rotate": ctx.Bool("rotate"),
"rotateSecret": ctx.Bool("rotate-secret"),
}
b, _ := json.Marshal(body)
// POST with bounded backoff on 429
url := stringsTrimRightSlash(portalURL) + "/api/v1/cluster/nodes/register"
var resp cluster.RegisterResponse
if err := postWithBackoff(url, token, b, &resp); err != nil {
var httpErr *httpError
if errors.As(err, &httpErr) && httpErr.Status == http.StatusTooManyRequests {
return cli.Exit(fmt.Errorf("portal rate-limited registration attempts"), 6)
}
// Map common errors
if errors.As(err, &httpErr) {
switch httpErr.Status {
case http.StatusUnauthorized, http.StatusForbidden:
return cli.Exit(fmt.Errorf("%s", httpErr.Error()), 4)
case http.StatusConflict:
return cli.Exit(fmt.Errorf("%s", httpErr.Error()), 5)
case http.StatusBadRequest:
return cli.Exit(fmt.Errorf("%s", httpErr.Error()), 2)
case http.StatusNotFound:
return cli.Exit(fmt.Errorf("%s", httpErr.Error()), 3)
}
}
return cli.Exit(err, 1)
}
// Output
if ctx.Bool("json") {
jb, _ := json.Marshal(resp)
fmt.Println(string(jb))
} else {
// Human-readable: node row and credentials if present
cols := []string{"ID", "Name", "Role", "DB Name", "DB User", "Host", "Port"}
var dbName, dbUser string
if resp.Database.Name != "" {
dbName = resp.Database.Name
}
if resp.Database.User != "" {
dbUser = resp.Database.User
}
rows := [][]string{{resp.Node.ID, resp.Node.Name, resp.Node.Role, dbName, dbUser, resp.Database.Host, fmt.Sprintf("%d", resp.Database.Port)}}
out, _ := report.RenderFormat(rows, cols, report.CliFormat(ctx))
fmt.Printf("\n%s\n", out)
// Secrets/credentials block if any
// Show secrets in up to two tables, then print DSN if present
if (resp.Secrets != nil && resp.Secrets.NodeSecret != "") || resp.Database.Password != "" {
fmt.Println("PLEASE WRITE DOWN THE FOLLOWING CREDENTIALS; THEY WILL NOT BE SHOWN AGAIN:")
if resp.Secrets != nil && resp.Secrets.NodeSecret != "" && resp.Database.Password != "" {
fmt.Printf("\n%s\n", report.Credentials("Node Secret", resp.Secrets.NodeSecret, "DB Password", resp.Database.Password))
} else if resp.Secrets != nil && resp.Secrets.NodeSecret != "" {
fmt.Printf("\n%s\n", report.Credentials("Node Secret", resp.Secrets.NodeSecret, "", ""))
} else if resp.Database.Password != "" {
fmt.Printf("\n%s\n", report.Credentials("DB User", resp.Database.User, "DB Password", resp.Database.Password))
}
if resp.Database.DSN != "" {
fmt.Printf("DSN: %s\n", resp.Database.DSN)
}
}
}
// Optional persistence
if ctx.Bool("write-config") {
if err := persistRegisterResponse(conf, &resp); err != nil {
return err
}
}
return nil
})
}
// HTTP helpers and backoff
type httpError struct {
Status int
Body string
}
func (e *httpError) Error() string { return fmt.Sprintf("http %d: %s", e.Status, e.Body) }
func postWithBackoff(url, token string, payload []byte, out any) error {
// backoff: 500ms -> max ~8s, 6 attempts with jitter
delay := 500 * time.Millisecond
for attempt := 0; attempt < 6; attempt++ {
req, _ := http.NewRequest(http.MethodPost, url, bytes.NewReader(payload))
header.SetAuthorization(req, token)
req.Header.Set(header.ContentType, "application/json")
client := &http.Client{Timeout: cluster.BootstrapRegisterTimeout}
resp, err := client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode == http.StatusTooManyRequests {
// backoff and retry
time.Sleep(jitter(delay, 0.25))
if delay < 8*time.Second {
delay *= 2
}
continue
}
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
b, _ := io.ReadAll(resp.Body)
return &httpError{Status: resp.StatusCode, Body: string(b)}
}
dec := json.NewDecoder(resp.Body)
return dec.Decode(out)
}
return &httpError{Status: http.StatusTooManyRequests, Body: "rate limited"}
}
func jitter(d time.Duration, frac float64) time.Duration {
// simple +/- jitter
n := time.Duration(float64(d) * (1 + (randFloat()*2-1)*frac))
if n <= 0 {
return d
}
return n
}
// tiny rand without pulling math/rand global state unpredictably
func randFloat() float64 { return float64(time.Now().UnixNano()%1000) / 1000.0 }
func stringsTrimRightSlash(s string) string {
for len(s) > 0 && s[len(s)-1] == '/' {
s = s[:len(s)-1]
}
return s
}
// Persistence helpers for --write-config
func parseLabelSlice(labels []string) map[string]string {
if len(labels) == 0 {
return nil
}
m := make(map[string]string)
for _, kv := range labels {
if i := bytes.IndexByte([]byte(kv), '='); i > 0 && i < len(kv)-1 {
k := kv[:i]
v := kv[i+1:]
m[k] = v
}
}
if len(m) == 0 {
return nil
}
return m
}
// Persistence helpers for --write-config
func persistRegisterResponse(conf *config.Config, resp *cluster.RegisterResponse) error {
// Node secret file
if resp.Secrets != nil && resp.Secrets.NodeSecret != "" {
// Prefer PHOTOPRISM_NODE_SECRET_FILE; otherwise config cluster path
fileName := os.Getenv(config.FlagFileVar("NODE_SECRET"))
if fileName == "" {
fileName = filepath.Join(conf.PortalConfigPath(), "node-secret")
}
if err := fs.MkdirAll(filepath.Dir(fileName)); err != nil {
return err
}
if err := os.WriteFile(fileName, []byte(resp.Secrets.NodeSecret), 0o600); err != nil {
return err
}
log.Infof("wrote node secret to %s", clean.Log(fileName))
}
// DB settings (MySQL/MariaDB only)
if resp.Database.Name != "" && resp.Database.User != "" {
if err := mergeOptionsYaml(conf, map[string]any{
"DatabaseDriver": config.MySQL,
"DatabaseName": resp.Database.Name,
"DatabaseServer": fmt.Sprintf("%s:%d", resp.Database.Host, resp.Database.Port),
"DatabaseUser": resp.Database.User,
"DatabasePassword": resp.Database.Password,
}); err != nil {
return err
}
log.Infof("updated options.yml with database settings for node %s", clean.LogQuote(resp.Node.Name))
}
return nil
}
func mergeOptionsYaml(conf *config.Config, kv map[string]any) error {
fileName := conf.OptionsYaml()
if err := fs.MkdirAll(filepath.Dir(fileName)); err != nil {
return err
}
var m map[string]any
if fs.FileExists(fileName) {
if b, err := os.ReadFile(fileName); err == nil && len(b) > 0 {
_ = yaml.Unmarshal(b, &m)
}
}
if m == nil {
m = map[string]any{}
}
for k, v := range kv {
m[k] = v
}
b, err := yaml.Marshal(m)
if err != nil {
return err
}
return os.WriteFile(fileName, b, 0o644)
}