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/*
* MinIO Cloud Storage, (C) 2017, 2018 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cmd
import (
"crypto/tls"
"errors"
"net"
"os"
"path/filepath"
"strconv"
"strings"
"time"
etcd "github.com/coreos/etcd/clientv3"
dns2 "github.com/miekg/dns"
"github.com/minio/cli"
"github.com/minio/minio-go/v6/pkg/set"
"github.com/minio/minio/cmd/logger"
"github.com/minio/minio/cmd/logger/target/console"
"github.com/minio/minio/cmd/logger/target/http"
"github.com/minio/minio/pkg/auth"
"github.com/minio/minio/pkg/dns"
xnet "github.com/minio/minio/pkg/net"
)
func verifyObjectLayerFeatures(name string, objAPI ObjectLayer) {
if (globalAutoEncryption || GlobalKMS != nil) && !objAPI.IsEncryptionSupported() {
logger.Fatal(errInvalidArgument,
"Encryption support is requested but '%s' does not support encryption", name)
}
if strings.HasPrefix(name, "gateway") {
if GlobalGatewaySSE.IsSet() && GlobalKMS == nil {
uiErr := uiErrInvalidGWSSEEnvValue(nil).Msg("MINIO_GATEWAY_SSE set but KMS is not configured")
logger.Fatal(uiErr, "Unable to start gateway with SSE")
}
}
if globalIsCompressionEnabled && !objAPI.IsCompressionSupported() {
logger.Fatal(errInvalidArgument,
"Compression support is requested but '%s' does not support compression", name)
}
}
// Check for updates and print a notification message
func checkUpdate(mode string) {
// Its OK to ignore any errors during doUpdate() here.
if updateMsg, _, currentReleaseTime, latestReleaseTime, err := getUpdateInfo(2*time.Second, mode); err == nil {
if globalInplaceUpdateDisabled {
logger.StartupMessage(updateMsg)
} else {
logger.StartupMessage(prepareUpdateMessage("Run `minio update`", latestReleaseTime.Sub(currentReleaseTime)))
}
}
}
// Load logger targets based on user's configuration
func loadLoggers() {
auditEndpoint, ok := os.LookupEnv("MINIO_AUDIT_LOGGER_HTTP_ENDPOINT")
if ok {
// Enable audit HTTP logging through ENV.
logger.AddAuditTarget(http.New(auditEndpoint, NewCustomHTTPTransport()))
}
loggerEndpoint, ok := os.LookupEnv("MINIO_LOGGER_HTTP_ENDPOINT")
if ok {
// Enable HTTP logging through ENV.
logger.AddTarget(http.New(loggerEndpoint, NewCustomHTTPTransport()))
} else {
for _, l := range globalServerConfig.Logger.HTTP {
if l.Enabled {
// Enable http logging
logger.AddTarget(http.New(l.Endpoint, NewCustomHTTPTransport()))
}
}
}
if globalServerConfig.Logger.Console.Enabled {
// Enable console logging
logger.AddTarget(console.New())
}
}
func newConfigDirFromCtx(ctx *cli.Context, option string, getDefaultDir func() string) (*ConfigDir, bool) {
var dir string
var dirSet bool
switch {
case ctx.IsSet(option):
dir = ctx.String(option)
dirSet = true
case ctx.GlobalIsSet(option):
dir = ctx.GlobalString(option)
dirSet = true
// cli package does not expose parent's option option. Below code is workaround.
if dir == "" || dir == getDefaultDir() {
dirSet = false // Unset to false since GlobalIsSet() true is a false positive.
if ctx.Parent().GlobalIsSet(option) {
dir = ctx.Parent().GlobalString(option)
dirSet = true
}
}
default:
// Neither local nor global option is provided. In this case, try to use
// default directory.
dir = getDefaultDir()
if dir == "" {
logger.FatalIf(errInvalidArgument, "%s option must be provided", option)
}
}
if dir == "" {
logger.FatalIf(errors.New("empty directory"), "%s directory cannot be empty", option)
}
// Disallow relative paths, figure out absolute paths.
dirAbs, err := filepath.Abs(dir)
logger.FatalIf(err, "Unable to fetch absolute path for %s=%s", option, dir)
logger.FatalIf(mkdirAllIgnorePerm(dirAbs), "Unable to create directory specified %s=%s", option, dir)
return &ConfigDir{path: dirAbs}, dirSet
}
func handleCommonCmdArgs(ctx *cli.Context) {
// Get "json" flag from command line argument and
// enable json and quite modes if json flag is turned on.
globalCLIContext.JSON = ctx.IsSet("json") || ctx.GlobalIsSet("json")
if globalCLIContext.JSON {
logger.EnableJSON()
}
// Get quiet flag from command line argument.
globalCLIContext.Quiet = ctx.IsSet("quiet") || ctx.GlobalIsSet("quiet")
if globalCLIContext.Quiet {
logger.EnableQuiet()
}
// Get anonymous flag from command line argument.
globalCLIContext.Anonymous = ctx.IsSet("anonymous") || ctx.GlobalIsSet("anonymous")
if globalCLIContext.Anonymous {
logger.EnableAnonymous()
}
// Fetch address option
globalCLIContext.Addr = ctx.GlobalString("address")
if globalCLIContext.Addr == "" || globalCLIContext.Addr == ":"+globalMinioDefaultPort {
globalCLIContext.Addr = ctx.String("address")
}
// Set all config, certs and CAs directories.
var configSet, certsSet bool
globalConfigDir, configSet = newConfigDirFromCtx(ctx, "config-dir", defaultConfigDir.Get)
globalCertsDir, certsSet = newConfigDirFromCtx(ctx, "certs-dir", defaultCertsDir.Get)
// Remove this code when we deprecate and remove config-dir.
// This code is to make sure we inherit from the config-dir
// option if certs-dir is not provided.
if !certsSet && configSet {
globalCertsDir = &ConfigDir{path: filepath.Join(globalConfigDir.Get(), certsDir)}
}
globalCertsCADir = &ConfigDir{path: filepath.Join(globalCertsDir.Get(), certsCADir)}
logger.FatalIf(mkdirAllIgnorePerm(globalCertsCADir.Get()), "Unable to create certs CA directory at %s", globalCertsCADir.Get())
// Check "compat" flag from command line argument.
globalCLIContext.StrictS3Compat = ctx.IsSet("compat") || ctx.GlobalIsSet("compat")
}
// Parses the given compression exclude list `extensions` or `content-types`.
func parseCompressIncludes(includes []string) ([]string, error) {
for _, e := range includes {
if len(e) == 0 {
return nil, uiErrInvalidCompressionIncludesValue(nil).Msg("extension/mime-type (%s) cannot be empty", e)
}
}
return includes, nil
}
func handleCommonEnvVars() {
compressEnvDelimiter := ","
// Start profiler if env is set.
if profiler := os.Getenv("_MINIO_PROFILER"); profiler != "" {
var err error
globalProfiler, err = startProfiler(profiler, "")
logger.FatalIf(err, "Unable to setup a profiler")
}
accessKey := os.Getenv("MINIO_ACCESS_KEY")
secretKey := os.Getenv("MINIO_SECRET_KEY")
if accessKey != "" && secretKey != "" {
cred, err := auth.CreateCredentials(accessKey, secretKey)
if err != nil {
logger.Fatal(uiErrInvalidCredentials(err), "Unable to validate credentials inherited from the shell environment")
}
cred.Expiration = timeSentinel
// credential Envs are set globally.
globalIsEnvCreds = true
globalActiveCred = cred
}
if browser := os.Getenv("MINIO_BROWSER"); browser != "" {
browserFlag, err := ParseBoolFlag(browser)
if err != nil {
logger.Fatal(uiErrInvalidBrowserValue(nil).Msg("Unknown value `%s`", browser), "Invalid MINIO_BROWSER value in environment variable")
}
// browser Envs are set globally, this does not represent
// if browser is turned off or on.
globalIsEnvBrowser = true
globalIsBrowserEnabled = bool(browserFlag)
}
etcdEndpointsEnv, ok := os.LookupEnv("MINIO_ETCD_ENDPOINTS")
if ok {
etcdEndpoints := strings.Split(etcdEndpointsEnv, ",")
var etcdSecure bool
for _, endpoint := range etcdEndpoints {
u, err := xnet.ParseURL(endpoint)
if err != nil {
logger.FatalIf(err, "Unable to initialize etcd with %s", etcdEndpoints)
}
// If one of the endpoint is https, we will use https directly.
etcdSecure = etcdSecure || u.Scheme == "https"
}
var err error
if etcdSecure {
// This is only to support client side certificate authentication
// https://coreos.com/etcd/docs/latest/op-guide/security.html
etcdClientCertFile, ok1 := os.LookupEnv("MINIO_ETCD_CLIENT_CERT")
etcdClientCertKey, ok2 := os.LookupEnv("MINIO_ETCD_CLIENT_CERT_KEY")
var getClientCertificate func(*tls.CertificateRequestInfo) (*tls.Certificate, error)
if ok1 && ok2 {
getClientCertificate = func(unused *tls.CertificateRequestInfo) (*tls.Certificate, error) {
cert, terr := tls.LoadX509KeyPair(etcdClientCertFile, etcdClientCertKey)
return &cert, terr
}
}
globalEtcdClient, err = etcd.New(etcd.Config{
Endpoints: etcdEndpoints,
DialTimeout: defaultDialTimeout,
DialKeepAliveTime: defaultDialKeepAlive,
TLS: &tls.Config{
RootCAs: globalRootCAs,
GetClientCertificate: getClientCertificate,
},
})
} else {
globalEtcdClient, err = etcd.New(etcd.Config{
Endpoints: etcdEndpoints,
DialTimeout: defaultDialTimeout,
DialKeepAliveTime: defaultDialKeepAlive,
})
}
logger.FatalIf(err, "Unable to initialize etcd with %s", etcdEndpoints)
}
v, ok := os.LookupEnv("MINIO_DOMAIN")
if ok {
for _, domainName := range strings.Split(v, ",") {
if _, ok = dns2.IsDomainName(domainName); !ok {
logger.Fatal(uiErrInvalidDomainValue(nil).Msg("Unknown value `%s`", domainName),
"Invalid MINIO_DOMAIN value in environment variable")
}
globalDomainNames = append(globalDomainNames, domainName)
}
}
minioEndpointsEnv, ok := os.LookupEnv("MINIO_PUBLIC_IPS")
if ok {
minioEndpoints := strings.Split(minioEndpointsEnv, ",")
var domainIPs = set.NewStringSet()
for _, endpoint := range minioEndpoints {
if net.ParseIP(endpoint) == nil {
// Checking if the IP is a DNS entry.
addrs, err := net.LookupHost(endpoint)
if err != nil {
logger.FatalIf(err, "Unable to initialize MinIO server with [%s] invalid entry found in MINIO_PUBLIC_IPS", endpoint)
}
for _, addr := range addrs {
domainIPs.Add(addr)
}
continue
}
domainIPs.Add(endpoint)
}
updateDomainIPs(domainIPs)
} else {
// Add found interfaces IP address to global domain IPS,
// loopback addresses will be naturally dropped.
updateDomainIPs(localIP4)
}
if len(globalDomainNames) != 0 && !globalDomainIPs.IsEmpty() && globalEtcdClient != nil {
var err error
globalDNSConfig, err = dns.NewCoreDNS(globalDomainNames, globalDomainIPs, globalMinioPort, globalEtcdClient)
logger.FatalIf(err, "Unable to initialize DNS config for %s.", globalDomainNames)
}
if drives := os.Getenv("MINIO_CACHE_DRIVES"); drives != "" {
driveList, err := parseCacheDrives(strings.Split(drives, cacheEnvDelimiter))
if err != nil {
logger.Fatal(err, "Unable to parse MINIO_CACHE_DRIVES value (%s)", drives)
}
globalCacheDrives = driveList
globalIsDiskCacheEnabled = true
}
if excludes := os.Getenv("MINIO_CACHE_EXCLUDE"); excludes != "" {
excludeList, err := parseCacheExcludes(strings.Split(excludes, cacheEnvDelimiter))
if err != nil {
logger.Fatal(err, "Unable to parse MINIO_CACHE_EXCLUDE value (`%s`)", excludes)
}
globalCacheExcludes = excludeList
}
if expiryStr := os.Getenv("MINIO_CACHE_EXPIRY"); expiryStr != "" {
expiry, err := strconv.Atoi(expiryStr)
if err != nil {
logger.Fatal(uiErrInvalidCacheExpiryValue(err), "Unable to parse MINIO_CACHE_EXPIRY value (`%s`)", expiryStr)
}
globalCacheExpiry = expiry
}
if maxUseStr := os.Getenv("MINIO_CACHE_MAXUSE"); maxUseStr != "" {
maxUse, err := strconv.Atoi(maxUseStr)
if err != nil {
logger.Fatal(uiErrInvalidCacheMaxUse(err), "Unable to parse MINIO_CACHE_MAXUSE value (`%s`)", maxUseStr)
}
// maxUse should be a valid percentage.
if maxUse > 0 && maxUse <= 100 {
globalCacheMaxUse = maxUse
}
}
// In place update is true by default if the MINIO_UPDATE is not set
// or is not set to 'off', if MINIO_UPDATE is set to 'off' then
// in-place update is off.
globalInplaceUpdateDisabled = strings.EqualFold(os.Getenv("MINIO_UPDATE"), "off")
// Validate and store the storage class env variables only for XL/Dist XL setups
if globalIsXL {
var err error
// Check for environment variables and parse into storageClass struct
if ssc := os.Getenv(standardStorageClassEnv); ssc != "" {
globalStandardStorageClass, err = parseStorageClass(ssc)
logger.FatalIf(err, "Invalid value set in environment variable %s", standardStorageClassEnv)
}
if rrsc := os.Getenv(reducedRedundancyStorageClassEnv); rrsc != "" {
globalRRStorageClass, err = parseStorageClass(rrsc)
logger.FatalIf(err, "Invalid value set in environment variable %s", reducedRedundancyStorageClassEnv)
}
// Validation is done after parsing both the storage classes. This is needed because we need one
// storage class value to deduce the correct value of the other storage class.
if globalRRStorageClass.Scheme != "" {
err = validateParity(globalStandardStorageClass.Parity, globalRRStorageClass.Parity)
logger.FatalIf(err, "Invalid value set in environment variable %s", reducedRedundancyStorageClassEnv)
globalIsStorageClass = true
}
if globalStandardStorageClass.Scheme != "" {
err = validateParity(globalStandardStorageClass.Parity, globalRRStorageClass.Parity)
logger.FatalIf(err, "Invalid value set in environment variable %s", standardStorageClassEnv)
globalIsStorageClass = true
}
}
// Get WORM environment variable.
if worm := os.Getenv("MINIO_WORM"); worm != "" {
wormFlag, err := ParseBoolFlag(worm)
if err != nil {
logger.Fatal(uiErrInvalidWormValue(nil).Msg("Unknown value `%s`", worm), "Invalid MINIO_WORM value in environment variable")
}
// worm Envs are set globally, this does not represent
// if worm is turned off or on.
globalIsEnvWORM = true
globalWORMEnabled = bool(wormFlag)
}
if compress := os.Getenv("MINIO_COMPRESS"); compress != "" {
globalIsCompressionEnabled = strings.EqualFold(compress, "true")
}
compressExtensions := os.Getenv("MINIO_COMPRESS_EXTENSIONS")
compressMimeTypes := os.Getenv("MINIO_COMPRESS_MIMETYPES")
if compressExtensions != "" || compressMimeTypes != "" {
globalIsEnvCompression = true
if compressExtensions != "" {
extensions, err := parseCompressIncludes(strings.Split(compressExtensions, compressEnvDelimiter))
if err != nil {
logger.Fatal(err, "Invalid MINIO_COMPRESS_EXTENSIONS value (`%s`)", extensions)
}
globalCompressExtensions = extensions
}
if compressMimeTypes != "" {
contenttypes, err := parseCompressIncludes(strings.Split(compressMimeTypes, compressEnvDelimiter))
if err != nil {
logger.Fatal(err, "Invalid MINIO_COMPRESS_MIMETYPES value (`%s`)", contenttypes)
}
globalCompressMimeTypes = contenttypes
}
}
}