mirror of
https://github.com/project-zot/zot.git
synced 2024-12-16 21:56:37 -05:00
433 lines
12 KiB
Go
433 lines
12 KiB
Go
package api
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import (
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"context"
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"crypto/tls"
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"crypto/x509"
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"fmt"
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"net"
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"net/http"
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"os"
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"runtime"
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"strconv"
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"strings"
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"syscall"
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"time"
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"github.com/gorilla/handlers"
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"github.com/gorilla/mux"
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"github.com/zitadel/oidc/pkg/client/rp"
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"zotregistry.io/zot/errors"
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"zotregistry.io/zot/pkg/api/config"
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ext "zotregistry.io/zot/pkg/extensions"
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extconf "zotregistry.io/zot/pkg/extensions/config"
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"zotregistry.io/zot/pkg/extensions/monitoring"
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"zotregistry.io/zot/pkg/log"
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"zotregistry.io/zot/pkg/meta"
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mTypes "zotregistry.io/zot/pkg/meta/types"
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"zotregistry.io/zot/pkg/scheduler"
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"zotregistry.io/zot/pkg/storage"
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"zotregistry.io/zot/pkg/storage/gc"
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)
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const (
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idleTimeout = 120 * time.Second
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readHeaderTimeout = 5 * time.Second
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)
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type Controller struct {
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Config *config.Config
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Router *mux.Router
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MetaDB mTypes.MetaDB
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StoreController storage.StoreController
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Log log.Logger
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Audit *log.Logger
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Server *http.Server
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Metrics monitoring.MetricServer
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CveScanner ext.CveScanner
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SyncOnDemand SyncOnDemand
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RelyingParties map[string]rp.RelyingParty
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CookieStore *CookieStore
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// runtime params
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chosenPort int // kernel-chosen port
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}
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func NewController(config *config.Config) *Controller {
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var controller Controller
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logger := log.NewLogger(config.Log.Level, config.Log.Output)
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controller.Config = config
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controller.Log = logger
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if config.Log.Audit != "" {
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audit := log.NewAuditLogger(config.Log.Level, config.Log.Audit)
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controller.Audit = audit
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}
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return &controller
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}
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func DumpRuntimeParams(log log.Logger) {
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var rLimit syscall.Rlimit
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evt := log.Info().Int("cpus", runtime.NumCPU()) //nolint: zerologlint
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err := syscall.Getrlimit(syscall.RLIMIT_NOFILE, &rLimit)
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if err == nil {
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evt = evt.Uint64("max. open files", uint64(rLimit.Cur)) //nolint: unconvert // required for *BSD
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}
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if content, err := os.ReadFile("/proc/sys/net/core/somaxconn"); err == nil {
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evt = evt.Str("listen backlog", strings.TrimSuffix(string(content), "\n"))
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}
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if content, err := os.ReadFile("/proc/sys/user/max_inotify_watches"); err == nil {
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evt = evt.Str("max. inotify watches", strings.TrimSuffix(string(content), "\n"))
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}
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evt.Msg("runtime params")
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}
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func (c *Controller) GetPort() int {
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return c.chosenPort
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}
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func (c *Controller) Run(reloadCtx context.Context) error {
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if err := c.initCookieStore(); err != nil {
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return err
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}
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c.StartBackgroundTasks(reloadCtx)
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// setup HTTP API router
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engine := mux.NewRouter()
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// rate-limit HTTP requests if enabled
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if c.Config.HTTP.Ratelimit != nil {
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if c.Config.HTTP.Ratelimit.Rate != nil {
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engine.Use(RateLimiter(c, *c.Config.HTTP.Ratelimit.Rate))
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}
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for _, mrlim := range c.Config.HTTP.Ratelimit.Methods {
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engine.Use(MethodRateLimiter(c, mrlim.Method, mrlim.Rate))
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}
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}
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engine.Use(
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SessionLogger(c),
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handlers.RecoveryHandler(handlers.RecoveryLogger(c.Log),
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handlers.PrintRecoveryStack(false)))
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if c.Audit != nil {
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engine.Use(SessionAuditLogger(c.Audit))
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}
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c.Router = engine
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c.Router.UseEncodedPath()
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monitoring.SetServerInfo(c.Metrics, c.Config.Commit, c.Config.BinaryType, c.Config.GoVersion,
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c.Config.DistSpecVersion)
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//nolint: contextcheck
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_ = NewRouteHandler(c)
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addr := fmt.Sprintf("%s:%s", c.Config.HTTP.Address, c.Config.HTTP.Port)
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server := &http.Server{
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Addr: addr,
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Handler: c.Router,
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IdleTimeout: idleTimeout,
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ReadHeaderTimeout: readHeaderTimeout,
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}
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c.Server = server
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// Create the listener
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listener, err := net.Listen("tcp", addr)
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if err != nil {
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return err
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}
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if c.Config.HTTP.Port == "0" || c.Config.HTTP.Port == "" {
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chosenAddr, ok := listener.Addr().(*net.TCPAddr)
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if !ok {
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c.Log.Error().Str("port", c.Config.HTTP.Port).Msg("invalid addr type")
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return errors.ErrBadType
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}
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c.chosenPort = chosenAddr.Port
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c.Log.Info().Int("port", chosenAddr.Port).IPAddr("address", chosenAddr.IP).Msg(
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"port is unspecified, listening on kernel chosen port",
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)
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} else {
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chosenPort, _ := strconv.ParseInt(c.Config.HTTP.Port, 10, 64)
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c.chosenPort = int(chosenPort)
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}
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if c.Config.HTTP.TLS != nil && c.Config.HTTP.TLS.Key != "" && c.Config.HTTP.TLS.Cert != "" {
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server.TLSConfig = &tls.Config{
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CipherSuites: []uint16{
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tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
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tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
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tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
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tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
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tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
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tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
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},
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CurvePreferences: []tls.CurveID{
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tls.CurveP256,
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tls.X25519,
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},
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PreferServerCipherSuites: true,
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MinVersion: tls.VersionTLS12,
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}
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if c.Config.HTTP.TLS.CACert != "" {
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clientAuth := tls.VerifyClientCertIfGiven
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if c.Config.IsMTLSAuthEnabled() {
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clientAuth = tls.RequireAndVerifyClientCert
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}
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caCert, err := os.ReadFile(c.Config.HTTP.TLS.CACert)
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if err != nil {
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panic(err)
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}
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caCertPool := x509.NewCertPool()
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if !caCertPool.AppendCertsFromPEM(caCert) {
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panic(errors.ErrBadCACert)
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}
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server.TLSConfig.ClientAuth = clientAuth
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server.TLSConfig.ClientCAs = caCertPool
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}
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return server.ServeTLS(listener, c.Config.HTTP.TLS.Cert, c.Config.HTTP.TLS.Key)
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}
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return server.Serve(listener)
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}
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func (c *Controller) Init(reloadCtx context.Context) error {
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// print the current configuration, but strip secrets
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c.Log.Info().Interface("params", c.Config.Sanitize()).Msg("configuration settings")
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// print the current runtime environment
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DumpRuntimeParams(c.Log)
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var enabled bool
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if c.Config != nil &&
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c.Config.Extensions != nil &&
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c.Config.Extensions.Metrics != nil &&
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*c.Config.Extensions.Metrics.Enable {
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enabled = true
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}
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c.Metrics = monitoring.NewMetricsServer(enabled, c.Log)
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if err := c.InitImageStore(); err != nil { //nolint:contextcheck
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return err
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}
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if err := c.InitMetaDB(reloadCtx); err != nil {
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return err
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}
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c.InitCVEInfo()
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return nil
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}
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func (c *Controller) InitCVEInfo() {
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// Enable CVE extension if extension config is provided
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if c.Config != nil && c.Config.Extensions != nil {
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c.CveScanner = ext.GetCveScanner(c.Config, c.StoreController, c.MetaDB, c.Log)
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}
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}
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func (c *Controller) InitImageStore() error {
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linter := ext.GetLinter(c.Config, c.Log)
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storeController, err := storage.New(c.Config, linter, c.Metrics, c.Log)
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if err != nil {
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return err
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}
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c.StoreController = storeController
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return nil
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}
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func (c *Controller) initCookieStore() error {
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// setup sessions cookie store used to preserve logged in user in web sessions
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if c.Config.IsBasicAuthnEnabled() {
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cookieStore, err := NewCookieStore(c.StoreController)
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if err != nil {
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return err
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}
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c.CookieStore = cookieStore
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}
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return nil
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}
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func (c *Controller) InitMetaDB(reloadCtx context.Context) error {
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// init metaDB if search is enabled or we need to store user profiles, api keys or signatures
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if c.Config.IsSearchEnabled() || c.Config.IsBasicAuthnEnabled() || c.Config.IsImageTrustEnabled() {
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driver, err := meta.New(c.Config.Storage.StorageConfig, c.Log) //nolint:contextcheck
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if err != nil {
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return err
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}
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err = ext.SetupExtensions(c.Config, driver, c.Log) //nolint:contextcheck
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if err != nil {
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return err
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}
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err = driver.PatchDB()
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if err != nil {
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return err
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}
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err = meta.ParseStorage(driver, c.StoreController, c.Log)
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if err != nil {
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return err
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}
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c.MetaDB = driver
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}
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return nil
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}
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func (c *Controller) LoadNewConfig(reloadCtx context.Context, newConfig *config.Config) {
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// reload access control config
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c.Config.HTTP.AccessControl = newConfig.HTTP.AccessControl
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// reload periodical gc config
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c.Config.Storage.GCInterval = newConfig.Storage.GCInterval
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c.Config.Storage.GC = newConfig.Storage.GC
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c.Config.Storage.GCDelay = newConfig.Storage.GCDelay
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c.Config.Storage.GCReferrers = newConfig.Storage.GCReferrers
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// reload background tasks
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if newConfig.Extensions != nil {
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if c.Config.Extensions == nil {
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c.Config.Extensions = &extconf.ExtensionConfig{}
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}
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// reload sync extension
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c.Config.Extensions.Sync = newConfig.Extensions.Sync
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// reload only if search is enabled and reloaded config has search extension (can't setup routes at this stage)
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if c.Config.Extensions.Search != nil && *c.Config.Extensions.Search.Enable {
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if newConfig.Extensions.Search != nil {
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c.Config.Extensions.Search.CVE = newConfig.Extensions.Search.CVE
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}
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}
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// reload scrub extension
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c.Config.Extensions.Scrub = newConfig.Extensions.Scrub
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} else {
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c.Config.Extensions = nil
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}
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c.InitCVEInfo()
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c.StartBackgroundTasks(reloadCtx)
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c.Log.Info().Interface("reloaded params", c.Config.Sanitize()).
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Msg("loaded new configuration settings")
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}
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func (c *Controller) Shutdown() {
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ctx := context.Background()
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_ = c.Server.Shutdown(ctx)
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}
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func (c *Controller) StartBackgroundTasks(reloadCtx context.Context) {
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taskScheduler := scheduler.NewScheduler(c.Config, c.Log)
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taskScheduler.RunScheduler(reloadCtx)
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// Enable running garbage-collect periodically for DefaultStore
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if c.Config.Storage.GC {
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gc := gc.NewGarbageCollect(c.StoreController.DefaultStore, c.MetaDB, gc.Options{
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Referrers: c.Config.Storage.GCReferrers,
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Delay: c.Config.Storage.GCDelay,
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RetentionDelay: c.Config.Storage.UntaggedImageRetentionDelay,
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}, c.Log)
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gc.CleanImageStorePeriodically(c.Config.Storage.GCInterval, taskScheduler)
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}
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// Enable running dedupe blobs both ways (dedupe or restore deduped blobs)
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c.StoreController.DefaultStore.RunDedupeBlobs(time.Duration(0), taskScheduler)
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// Enable extensions if extension config is provided for DefaultStore
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if c.Config != nil && c.Config.Extensions != nil {
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ext.EnableMetricsExtension(c.Config, c.Log, c.Config.Storage.RootDirectory)
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ext.EnableSearchExtension(c.Config, c.StoreController, c.MetaDB, taskScheduler, c.CveScanner, c.Log)
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}
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// runs once if metrics are enabled & imagestore is local
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if c.Config.IsMetricsEnabled() && c.Config.Storage.StorageDriver == nil {
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c.StoreController.DefaultStore.PopulateStorageMetrics(time.Duration(0), taskScheduler)
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}
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if c.Config.Storage.SubPaths != nil {
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for route, storageConfig := range c.Config.Storage.SubPaths {
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// Enable running garbage-collect periodically for subImageStore
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if storageConfig.GC {
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gc := gc.NewGarbageCollect(c.StoreController.SubStore[route], c.MetaDB,
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gc.Options{
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Referrers: storageConfig.GCReferrers,
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Delay: storageConfig.GCDelay,
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RetentionDelay: storageConfig.UntaggedImageRetentionDelay,
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}, c.Log)
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gc.CleanImageStorePeriodically(storageConfig.GCInterval, taskScheduler)
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}
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// Enable extensions if extension config is provided for subImageStore
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if c.Config != nil && c.Config.Extensions != nil {
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ext.EnableMetricsExtension(c.Config, c.Log, storageConfig.RootDirectory)
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}
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// Enable running dedupe blobs both ways (dedupe or restore deduped blobs) for subpaths
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substore := c.StoreController.SubStore[route]
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if substore != nil {
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substore.RunDedupeBlobs(time.Duration(0), taskScheduler)
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if c.Config.IsMetricsEnabled() && c.Config.Storage.StorageDriver == nil {
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substore.PopulateStorageMetrics(time.Duration(0), taskScheduler)
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}
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}
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}
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}
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if c.Config.Extensions != nil {
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ext.EnableScrubExtension(c.Config, c.Log, c.StoreController, taskScheduler)
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//nolint: contextcheck
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syncOnDemand, err := ext.EnableSyncExtension(c.Config, c.MetaDB, c.StoreController, taskScheduler, c.Log)
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if err != nil {
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c.Log.Error().Err(err).Msg("unable to start sync extension")
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}
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c.SyncOnDemand = syncOnDemand
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}
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if c.CookieStore != nil {
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c.CookieStore.RunSessionCleaner(taskScheduler)
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}
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// we can later move enabling the other scheduled tasks inside the call below
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ext.EnableScheduledTasks(c.Config, taskScheduler, c.MetaDB, c.Log) //nolint: contextcheck
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}
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type SyncOnDemand interface {
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SyncImage(ctx context.Context, repo, reference string) error
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SyncReference(ctx context.Context, repo string, subjectDigestStr string, referenceType string) error
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}
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