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317 lines
9.2 KiB
Go
317 lines
9.2 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2017, 2018 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"context"
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"fmt"
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"net/url"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"github.com/gorilla/mux"
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"github.com/minio/cli"
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xhttp "github.com/minio/minio/cmd/http"
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"github.com/minio/minio/cmd/logger"
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"github.com/minio/minio/pkg/certs"
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)
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func init() {
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logger.Init(GOPATH, GOROOT)
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logger.RegisterUIError(fmtError)
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}
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var (
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gatewayCmd = cli.Command{
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Name: "gateway",
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Usage: "start object storage gateway",
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Flags: append(ServerFlags, GlobalFlags...),
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HideHelpCommand: true,
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}
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)
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// RegisterGatewayCommand registers a new command for gateway.
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func RegisterGatewayCommand(cmd cli.Command) error {
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cmd.Flags = append(append(cmd.Flags, append(cmd.Flags, ServerFlags...)...), GlobalFlags...)
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gatewayCmd.Subcommands = append(gatewayCmd.Subcommands, cmd)
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return nil
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}
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// ParseGatewayEndpoint - Return endpoint.
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func ParseGatewayEndpoint(arg string) (endPoint string, secure bool, err error) {
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schemeSpecified := len(strings.Split(arg, "://")) > 1
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if !schemeSpecified {
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// Default connection will be "secure".
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arg = "https://" + arg
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}
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u, err := url.Parse(arg)
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if err != nil {
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return "", false, err
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}
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switch u.Scheme {
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case "http":
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return u.Host, false, nil
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case "https":
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return u.Host, true, nil
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default:
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return "", false, fmt.Errorf("Unrecognized scheme %s", u.Scheme)
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}
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}
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// ValidateGatewayArguments - Validate gateway arguments.
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func ValidateGatewayArguments(serverAddr, endpointAddr string) error {
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if err := CheckLocalServerAddr(serverAddr); err != nil {
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return err
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}
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if endpointAddr != "" {
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// Reject the endpoint if it points to the gateway handler itself.
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sameTarget, err := sameLocalAddrs(endpointAddr, serverAddr)
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if err != nil {
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return err
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}
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if sameTarget {
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return fmt.Errorf("endpoint points to the local gateway")
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}
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}
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return nil
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}
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// StartGateway - handler for 'minio gateway <name>'.
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func StartGateway(ctx *cli.Context, gw Gateway) {
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if gw == nil {
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logger.FatalIf(errUnexpected, "Gateway implementation not initialized")
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}
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// Disable logging until gateway initialization is complete, any
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// error during initialization will be shown as a fatal message
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logger.Disable = true
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// Validate if we have access, secret set through environment.
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gatewayName := gw.Name()
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if ctx.Args().First() == "help" {
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cli.ShowCommandHelpAndExit(ctx, gatewayName, 1)
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}
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// Handle common command args.
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handleCommonCmdArgs(ctx)
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// Get port to listen on from gateway address
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globalMinioHost, globalMinioPort = mustSplitHostPort(globalCLIContext.Addr)
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// On macOS, if a process already listens on LOCALIPADDR:PORT, net.Listen() falls back
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// to IPv6 address ie minio will start listening on IPv6 address whereas another
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// (non-)minio process is listening on IPv4 of given port.
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// To avoid this error situation we check for port availability.
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logger.FatalIf(checkPortAvailability(globalMinioHost, globalMinioPort), "Unable to start the gateway")
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// Check and load TLS certificates.
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var err error
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globalPublicCerts, globalTLSCerts, globalIsSSL, err = getTLSConfig()
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logger.FatalIf(err, "Invalid TLS certificate file")
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// Check and load Root CAs.
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globalRootCAs, err = getRootCAs(globalCertsCADir.Get())
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logger.FatalIf(err, "Failed to read root CAs (%v)", err)
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// Handle common env vars.
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handleCommonEnvVars()
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// Handle gateway specific env
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handleGatewayEnvVars()
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// Validate if we have access, secret set through environment.
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if !globalIsEnvCreds {
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logger.Fatal(uiErrEnvCredentialsMissingGateway(nil), "Unable to start gateway")
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}
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// Set system resources to maximum.
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logger.LogIf(context.Background(), setMaxResources())
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initNSLock(false) // Enable local namespace lock.
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// Set when gateway is enabled
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globalIsGateway = true
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router := mux.NewRouter().SkipClean(true)
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if globalEtcdClient != nil {
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// Enable STS router if etcd is enabled.
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registerSTSRouter(router)
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}
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enableConfigOps := globalEtcdClient != nil && gatewayName == "nas"
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enableIAMOps := globalEtcdClient != nil
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// Enable IAM admin APIs if etcd is enabled, if not just enable basic
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// operations such as profiling, server info etc.
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registerAdminRouter(router, enableConfigOps, enableIAMOps)
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// Add healthcheck router
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registerHealthCheckRouter(router)
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// Add server metrics router
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registerMetricsRouter(router)
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// Register web router when its enabled.
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if globalIsBrowserEnabled {
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logger.FatalIf(registerWebRouter(router), "Unable to configure web browser")
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}
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// Currently only NAS and S3 gateway support encryption headers.
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encryptionEnabled := gatewayName == "s3" || gatewayName == "nas"
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allowSSEKMS := gatewayName == "s3" // Only S3 can support SSE-KMS (as pass-through)
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// Add API router.
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registerAPIRouter(router, encryptionEnabled, allowSSEKMS)
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var getCert certs.GetCertificateFunc
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if globalTLSCerts != nil {
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getCert = globalTLSCerts.GetCertificate
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}
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globalHTTPServer = xhttp.NewServer([]string{globalCLIContext.Addr}, criticalErrorHandler{registerHandlers(router, globalHandlers...)}, getCert)
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globalHTTPServer.UpdateBytesReadFunc = globalConnStats.incInputBytes
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globalHTTPServer.UpdateBytesWrittenFunc = globalConnStats.incOutputBytes
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go func() {
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globalHTTPServerErrorCh <- globalHTTPServer.Start()
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}()
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signal.Notify(globalOSSignalCh, os.Interrupt, syscall.SIGTERM)
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// !!! Do not move this block !!!
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// For all gateways, the config needs to be loaded from env
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// prior to initializing the gateway layer
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{
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// Initialize server config.
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srvCfg := newServerConfig()
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// Override any values from ENVs.
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srvCfg.loadFromEnvs()
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// Load values to cached global values.
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srvCfg.loadToCachedConfigs()
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// hold the mutex lock before a new config is assigned.
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globalServerConfigMu.Lock()
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globalServerConfig = srvCfg
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globalServerConfigMu.Unlock()
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}
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newObject, err := gw.NewGatewayLayer(globalServerConfig.GetCredential())
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if err != nil {
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// Stop watching for any certificate changes.
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globalTLSCerts.Stop()
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globalHTTPServer.Shutdown()
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logger.FatalIf(err, "Unable to initialize gateway backend")
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}
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// Populate existing buckets to the etcd backend
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if globalDNSConfig != nil {
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initFederatorBackend(newObject)
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}
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if enableConfigOps {
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// Create a new config system.
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globalConfigSys = NewConfigSys()
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// Load globalServerConfig from etcd
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logger.LogIf(context.Background(), globalConfigSys.Init(newObject))
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}
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// Load logger subsystem
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loadLoggers()
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// This is only to uniquely identify each gateway deployments.
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globalDeploymentID = os.Getenv("MINIO_GATEWAY_DEPLOYMENT_ID")
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logger.SetDeploymentID(globalDeploymentID)
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var cacheConfig = globalServerConfig.GetCacheConfig()
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if len(cacheConfig.Drives) > 0 {
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var err error
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// initialize the new disk cache objects.
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globalCacheObjectAPI, err = newServerCacheObjects(cacheConfig)
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logger.FatalIf(err, "Unable to initialize disk caching")
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}
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// Re-enable logging
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logger.Disable = false
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// Create new IAM system.
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globalIAMSys = NewIAMSys()
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if enableIAMOps {
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// Initialize IAM sys.
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logger.LogIf(context.Background(), globalIAMSys.Init(newObject))
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}
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// Create new policy system.
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globalPolicySys = NewPolicySys()
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// Initialize policy system.
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go globalPolicySys.Init(newObject)
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// Create new notification system.
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globalNotificationSys = NewNotificationSys(globalServerConfig, globalEndpoints)
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if globalEtcdClient != nil && newObject.IsNotificationSupported() {
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logger.LogIf(context.Background(), globalNotificationSys.Init(newObject))
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}
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// Encryption support checks in gateway mode.
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{
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if (globalAutoEncryption || GlobalKMS != nil) && !newObject.IsEncryptionSupported() {
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logger.Fatal(errInvalidArgument,
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"Encryption support is requested but (%s) gateway does not support encryption", gw.Name())
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}
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if GlobalGatewaySSE.IsSet() && GlobalKMS == nil {
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logger.Fatal(uiErrInvalidGWSSEEnvValue(nil).Msg("MINIO_GATEWAY_SSE set but KMS is not configured"),
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"Unable to start gateway with SSE")
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}
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}
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// Once endpoints are finalized, initialize the new object api.
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globalObjLayerMutex.Lock()
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globalObjectAPI = newObject
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globalObjLayerMutex.Unlock()
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// Prints the formatted startup message once object layer is initialized.
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if !globalCLIContext.Quiet {
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mode := globalMinioModeGatewayPrefix + gatewayName
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// Check update mode.
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checkUpdate(mode)
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// Print a warning message if gateway is not ready for production before the startup banner.
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if !gw.Production() {
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logger.StartupMessage(colorYellow(" *** Warning: Not Ready for Production ***"))
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}
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// Print gateway startup message.
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printGatewayStartupMessage(getAPIEndpoints(), gatewayName)
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}
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// Set uptime time after object layer has initialized.
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globalBootTime = UTCNow()
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handleSignals()
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}
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