forked from TrueCloudLab/frostfs-s3-gw
775 lines
21 KiB
Go
775 lines
21 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"math"
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"os"
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"path"
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"runtime"
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"sort"
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"strconv"
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"strings"
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"time"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/handler"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/notifications"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/resolver"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/logs"
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"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/version"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
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"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
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"github.com/spf13/pflag"
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"github.com/spf13/viper"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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)
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const (
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defaultRebalanceInterval = 60 * time.Second
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defaultHealthcheckTimeout = 15 * time.Second
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defaultConnectTimeout = 10 * time.Second
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defaultStreamTimeout = 10 * time.Second
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defaultShutdownTimeout = 15 * time.Second
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defaultPoolErrorThreshold uint32 = 100
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defaultPlacementPolicy = "REP 3"
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defaultMaxClientsCount = 100
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defaultMaxClientsDeadline = time.Second * 30
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defaultSoftMemoryLimit = math.MaxInt64
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)
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var defaultCopiesNumbers = []uint32{0}
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const ( // Settings.
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// Logger.
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cfgLoggerLevel = "logger.level"
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// Wallet.
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cfgWalletPath = "wallet.path"
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cfgWalletAddress = "wallet.address"
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cfgWalletPassphrase = "wallet.passphrase"
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cmdWallet = "wallet"
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cmdAddress = "address"
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// Server.
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cfgServer = "server"
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cfgTLSEnabled = "tls.enabled"
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cfgTLSKeyFile = "tls.key_file"
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cfgTLSCertFile = "tls.cert_file"
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// Pool config.
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cfgConnectTimeout = "connect_timeout"
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cfgStreamTimeout = "stream_timeout"
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cfgHealthcheckTimeout = "healthcheck_timeout"
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cfgRebalanceInterval = "rebalance_interval"
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cfgPoolErrorThreshold = "pool_error_threshold"
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// Caching.
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cfgObjectsCacheLifetime = "cache.objects.lifetime"
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cfgObjectsCacheSize = "cache.objects.size"
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cfgListObjectsCacheLifetime = "cache.list.lifetime"
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cfgListObjectsCacheSize = "cache.list.size"
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cfgBucketsCacheLifetime = "cache.buckets.lifetime"
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cfgBucketsCacheSize = "cache.buckets.size"
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cfgNamesCacheLifetime = "cache.names.lifetime"
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cfgNamesCacheSize = "cache.names.size"
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cfgSystemCacheLifetime = "cache.system.lifetime"
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cfgSystemCacheSize = "cache.system.size"
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cfgAccessBoxCacheLifetime = "cache.accessbox.lifetime"
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cfgAccessBoxCacheSize = "cache.accessbox.size"
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cfgAccessControlCacheLifetime = "cache.accesscontrol.lifetime"
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cfgAccessControlCacheSize = "cache.accesscontrol.size"
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// NATS.
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cfgEnableNATS = "nats.enabled"
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cfgNATSEndpoint = "nats.endpoint"
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cfgNATSTimeout = "nats.timeout"
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cfgNATSTLSCertFile = "nats.cert_file"
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cfgNATSAuthPrivateKeyFile = "nats.key_file"
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cfgNATSRootCAFiles = "nats.root_ca"
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// Policy.
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cfgPolicyDefault = "placement_policy.default"
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cfgPolicyRegionMapFile = "placement_policy.region_mapping"
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cfgCopiesNumbers = "placement_policy.copies_numbers"
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// CORS.
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cfgDefaultMaxAge = "cors.default_max_age"
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// MaxClients.
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cfgMaxClientsCount = "max_clients_count"
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cfgMaxClientsDeadline = "max_clients_deadline"
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// Metrics / Profiler / Web.
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cfgPrometheusEnabled = "prometheus.enabled"
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cfgPrometheusAddress = "prometheus.address"
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cfgPProfEnabled = "pprof.enabled"
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cfgPProfAddress = "pprof.address"
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// Tracing.
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cfgTracingEnabled = "tracing.enabled"
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cfgTracingExporter = "tracing.exporter"
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cfgTracingEndpoint = "tracing.endpoint"
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cfgListenDomains = "listen_domains"
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// Peers.
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cfgPeers = "peers"
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// NeoGo.
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cfgRPCEndpoint = "rpc_endpoint"
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// Resolving.
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cfgResolveOrder = "resolve_order"
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// Application.
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cfgApplicationBuildTime = "app.build_time"
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// Kludge.
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cfgKludgeUseDefaultXMLNSForCompleteMultipartUpload = "kludge.use_default_xmlns_for_complete_multipart"
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cfgKludgeCompleteMultipartUploadKeepalive = "kludge.complete_multipart_keepalive"
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cfgKludgeBypassContentEncodingCheckInChunks = "kludge.bypass_content_encoding_check_in_chunks"
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// Command line args.
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cmdHelp = "help"
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cmdVersion = "version"
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cmdConfig = "config"
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cmdConfigDir = "config-dir"
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cmdPProf = "pprof"
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cmdMetrics = "metrics"
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cmdListenAddress = "listen_address"
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// Configuration of parameters of requests to FrostFS.
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// Number of the object copies to consider PUT to FrostFS successful.
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cfgSetCopiesNumber = "frostfs.set_copies_number"
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// Enabling client side object preparing for PUT operations.
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cfgClientCut = "frostfs.client_cut"
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// List of allowed AccessKeyID prefixes.
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cfgAllowedAccessKeyIDPrefixes = "allowed_access_key_id_prefixes"
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// Bucket resolving options.
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cfgResolveBucketAllow = "resolve_bucket.allow"
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cfgResolveBucketDeny = "resolve_bucket.deny"
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// Runtime.
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cfgSoftMemoryLimit = "runtime.soft_memory_limit"
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// envPrefix is an environment variables prefix used for configuration.
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envPrefix = "S3_GW"
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)
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var ignore = map[string]struct{}{
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cfgApplicationBuildTime: {},
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cfgPeers: {},
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cmdHelp: {},
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cmdVersion: {},
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}
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func fetchConnectTimeout(cfg *viper.Viper) time.Duration {
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connTimeout := cfg.GetDuration(cfgConnectTimeout)
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if connTimeout <= 0 {
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connTimeout = defaultConnectTimeout
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}
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return connTimeout
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}
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func fetchStreamTimeout(cfg *viper.Viper) time.Duration {
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streamTimeout := cfg.GetDuration(cfgStreamTimeout)
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if streamTimeout <= 0 {
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streamTimeout = defaultStreamTimeout
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}
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return streamTimeout
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}
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func fetchHealthCheckTimeout(cfg *viper.Viper) time.Duration {
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healthCheckTimeout := cfg.GetDuration(cfgHealthcheckTimeout)
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if healthCheckTimeout <= 0 {
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healthCheckTimeout = defaultHealthcheckTimeout
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}
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return healthCheckTimeout
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}
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func fetchRebalanceInterval(cfg *viper.Viper) time.Duration {
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rebalanceInterval := cfg.GetDuration(cfgRebalanceInterval)
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if rebalanceInterval <= 0 {
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rebalanceInterval = defaultRebalanceInterval
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}
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return rebalanceInterval
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}
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func fetchErrorThreshold(cfg *viper.Viper) uint32 {
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errorThreshold := cfg.GetUint32(cfgPoolErrorThreshold)
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if errorThreshold <= 0 {
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errorThreshold = defaultPoolErrorThreshold
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}
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return errorThreshold
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}
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func fetchMaxClientsCount(cfg *viper.Viper) int {
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maxClientsCount := cfg.GetInt(cfgMaxClientsCount)
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if maxClientsCount <= 0 {
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maxClientsCount = defaultMaxClientsCount
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}
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return maxClientsCount
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}
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func fetchMaxClientsDeadline(cfg *viper.Viper) time.Duration {
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maxClientsDeadline := cfg.GetDuration(cfgMaxClientsDeadline)
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if maxClientsDeadline <= 0 {
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maxClientsDeadline = defaultMaxClientsDeadline
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}
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return maxClientsDeadline
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}
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func fetchSoftMemoryLimit(cfg *viper.Viper) int64 {
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softMemoryLimit := cfg.GetSizeInBytes(cfgSoftMemoryLimit)
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if softMemoryLimit <= 0 {
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softMemoryLimit = defaultSoftMemoryLimit
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}
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return int64(softMemoryLimit)
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}
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func fetchDefaultPolicy(l *zap.Logger, cfg *viper.Viper) netmap.PlacementPolicy {
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var policy netmap.PlacementPolicy
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if cfg.IsSet(cfgPolicyDefault) {
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policyStr := cfg.GetString(cfgPolicyDefault)
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if err := policy.DecodeString(policyStr); err != nil {
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l.Warn(logs.FailedToParseDefaultLocationConstraint,
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zap.String("policy", policyStr), zap.String("default", defaultPlacementPolicy), zap.Error(err))
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} else {
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return policy
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}
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}
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if err := policy.DecodeString(defaultPlacementPolicy); err != nil {
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l.Fatal(logs.FailedToParseDefaultDefaultLocationConstraint, zap.String("policy", defaultPlacementPolicy))
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}
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return policy
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}
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func fetchNATSTimeout(cfg *viper.Viper, l *zap.Logger) time.Duration {
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timeout := cfg.GetDuration(cfgNATSTimeout)
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if timeout <= 0 {
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l.Error(logs.InvalidLifetimeUsingDefaultValue,
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zap.String("parameter", cfgNATSTimeout),
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zap.Duration("value in config", timeout),
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zap.Duration("default", notifications.DefaultTimeout))
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timeout = notifications.DefaultTimeout
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}
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return timeout
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}
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func fetchCacheLifetime(v *viper.Viper, l *zap.Logger, cfgEntry string, defaultValue time.Duration) time.Duration {
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if v.IsSet(cfgEntry) {
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lifetime := v.GetDuration(cfgEntry)
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if lifetime <= 0 {
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l.Error(logs.InvalidLifetimeUsingDefaultValue,
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zap.String("parameter", cfgEntry),
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zap.Duration("value in config", lifetime),
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zap.Duration("default", defaultValue))
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} else {
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return lifetime
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}
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}
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return defaultValue
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}
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func fetchCacheSize(v *viper.Viper, l *zap.Logger, cfgEntry string, defaultValue int) int {
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if v.IsSet(cfgEntry) {
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size := v.GetInt(cfgEntry)
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if size <= 0 {
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l.Error(logs.InvalidCacheSizeUsingDefaultValue,
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zap.String("parameter", cfgEntry),
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zap.Int("value in config", size),
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zap.Int("default", defaultValue))
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} else {
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return size
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}
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}
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return defaultValue
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}
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func fetchDefaultMaxAge(cfg *viper.Viper, l *zap.Logger) int {
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defaultMaxAge := handler.DefaultMaxAge
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if cfg.IsSet(cfgDefaultMaxAge) {
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defaultMaxAge = cfg.GetInt(cfgDefaultMaxAge)
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if defaultMaxAge <= 0 && defaultMaxAge != -1 {
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l.Fatal(logs.InvalidDefaultMaxAge,
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zap.String("parameter", cfgDefaultMaxAge),
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zap.String("value in config", strconv.Itoa(defaultMaxAge)))
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}
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}
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return defaultMaxAge
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}
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func fetchRegionMappingPolicies(l *zap.Logger, cfg *viper.Viper) map[string]netmap.PlacementPolicy {
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filepath := cfg.GetString(cfgPolicyRegionMapFile)
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regionPolicyMap, err := readRegionMap(filepath)
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if err != nil {
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l.Warn(logs.FailedToReadRegionMapFilePolicies, zap.String("file", filepath), zap.Error(err))
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return make(map[string]netmap.PlacementPolicy)
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}
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regionMap := make(map[string]netmap.PlacementPolicy, len(regionPolicyMap))
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for region, policy := range regionPolicyMap {
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if region == api.DefaultLocationConstraint {
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l.Warn(logs.DefaultLocationConstraintCantBeOverriden, zap.String("policy", policy))
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continue
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}
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var pp netmap.PlacementPolicy
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if err = pp.DecodeString(policy); err == nil {
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regionMap[region] = pp
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continue
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}
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if err = pp.UnmarshalJSON([]byte(policy)); err == nil {
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regionMap[region] = pp
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continue
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}
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l.Warn(logs.FailedToParseLocationConstraint, zap.String("region", region), zap.String("policy", policy))
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}
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return regionMap
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}
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func readRegionMap(filePath string) (map[string]string, error) {
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regionMap := make(map[string]string)
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if filePath == "" {
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return regionMap, nil
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}
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data, err := os.ReadFile(filePath)
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if err != nil {
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return nil, fmt.Errorf("coudln't read file '%s'", filePath)
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}
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if err = json.Unmarshal(data, ®ionMap); err != nil {
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return nil, fmt.Errorf("unmarshal policies: %w", err)
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}
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return regionMap, nil
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}
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func fetchDefaultCopiesNumbers(l *zap.Logger, v *viper.Viper) []uint32 {
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unparsed := v.GetStringSlice(cfgSetCopiesNumber)
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result := make([]uint32, len(unparsed))
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for i := range unparsed {
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parsedValue, err := strconv.ParseUint(unparsed[i], 10, 32)
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if err != nil {
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l.Warn(logs.FailedToParseDefaultCopiesNumbers,
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zap.Strings("copies numbers", unparsed), zap.Uint32s("default", defaultCopiesNumbers), zap.Error(err))
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return defaultCopiesNumbers
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}
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result[i] = uint32(parsedValue)
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}
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return result
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}
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func fetchCopiesNumbers(l *zap.Logger, v *viper.Viper) map[string][]uint32 {
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copiesNums := make(map[string][]uint32)
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for i := 0; ; i++ {
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key := cfgCopiesNumbers + "." + strconv.Itoa(i) + "."
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constraint := v.GetString(key + "location_constraint")
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vector := v.GetStringSlice(key + "vector")
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if constraint == "" || len(vector) == 0 {
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break
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}
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vector32 := make([]uint32, len(vector))
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for j := range vector {
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parsedValue, err := strconv.ParseUint(vector[j], 10, 32)
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if err != nil {
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l.Warn(logs.FailedToParseCopiesNumbers, zap.String("location", constraint),
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zap.Strings("copies numbers", vector), zap.Error(err))
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continue
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}
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vector32[j] = uint32(parsedValue)
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}
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copiesNums[constraint] = vector32
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l.Info(logs.ConstraintAdded, zap.String("location", constraint), zap.Strings("copies numbers", vector))
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}
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return copiesNums
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}
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func fetchPeers(l *zap.Logger, v *viper.Viper) []pool.NodeParam {
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var nodes []pool.NodeParam
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for i := 0; ; i++ {
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key := cfgPeers + "." + strconv.Itoa(i) + "."
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address := v.GetString(key + "address")
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weight := v.GetFloat64(key + "weight")
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priority := v.GetInt(key + "priority")
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if address == "" {
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l.Warn(logs.SkipEmptyAddress)
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break
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}
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if weight <= 0 { // unspecified or wrong
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weight = 1
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}
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if priority <= 0 { // unspecified or wrong
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priority = 1
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}
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nodes = append(nodes, pool.NewNodeParam(priority, address, weight))
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l.Info(logs.AddedStoragePeer,
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zap.Int("priority", priority),
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zap.String("address", address),
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zap.Float64("weight", weight))
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}
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return nodes
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}
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func fetchServers(v *viper.Viper) []ServerInfo {
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var servers []ServerInfo
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for i := 0; ; i++ {
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key := cfgServer + "." + strconv.Itoa(i) + "."
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var serverInfo ServerInfo
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serverInfo.Address = v.GetString(key + "address")
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serverInfo.TLS.Enabled = v.GetBool(key + cfgTLSEnabled)
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serverInfo.TLS.KeyFile = v.GetString(key + cfgTLSKeyFile)
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serverInfo.TLS.CertFile = v.GetString(key + cfgTLSCertFile)
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if serverInfo.Address == "" {
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break
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}
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servers = append(servers, serverInfo)
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}
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return servers
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}
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func newSettings() *viper.Viper {
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v := viper.New()
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v.AutomaticEnv()
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v.SetEnvPrefix(envPrefix)
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v.SetConfigType("yaml")
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v.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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v.AllowEmptyEnv(true)
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// flags setup:
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flags := pflag.NewFlagSet("commandline", pflag.ExitOnError)
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flags.SetOutput(os.Stdout)
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flags.SortFlags = false
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flags.Bool(cmdPProf, false, "enable pprof")
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flags.Bool(cmdMetrics, false, "enable prometheus metrics")
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help := flags.BoolP(cmdHelp, "h", false, "show help")
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versionFlag := flags.BoolP(cmdVersion, "v", false, "show version")
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flags.StringP(cmdWallet, "w", "", `path to the wallet`)
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flags.String(cmdAddress, "", `address of wallet account`)
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flags.StringArray(cmdConfig, nil, "config paths")
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flags.String(cmdConfigDir, "", "config dir path")
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flags.Duration(cfgHealthcheckTimeout, defaultHealthcheckTimeout, "set timeout to check node health during rebalance")
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flags.Duration(cfgConnectTimeout, defaultConnectTimeout, "set timeout to connect to FrostFS nodes")
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flags.Duration(cfgRebalanceInterval, defaultRebalanceInterval, "set rebalance interval")
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flags.Int(cfgMaxClientsCount, defaultMaxClientsCount, "set max-clients count")
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flags.Duration(cfgMaxClientsDeadline, defaultMaxClientsDeadline, "set max-clients deadline")
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flags.String(cmdListenAddress, "0.0.0.0:8080", "set the main address to listen")
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flags.String(cfgTLSCertFile, "", "TLS certificate file to use")
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flags.String(cfgTLSKeyFile, "", "TLS key file to use")
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peers := flags.StringArrayP(cfgPeers, "p", nil, "set FrostFS nodes")
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flags.StringP(cfgRPCEndpoint, "r", "", "set RPC endpoint")
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resolveMethods := flags.StringSlice(cfgResolveOrder, []string{resolver.DNSResolver}, "set bucket name resolve order")
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domains := flags.StringSliceP(cfgListenDomains, "d", nil, "set domains to be listened")
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|
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// set defaults:
|
|
|
|
// logger:
|
|
v.SetDefault(cfgLoggerLevel, "debug")
|
|
|
|
// pool:
|
|
v.SetDefault(cfgPoolErrorThreshold, defaultPoolErrorThreshold)
|
|
v.SetDefault(cfgStreamTimeout, defaultStreamTimeout)
|
|
|
|
v.SetDefault(cfgPProfAddress, "localhost:8085")
|
|
v.SetDefault(cfgPrometheusAddress, "localhost:8086")
|
|
|
|
// kludge
|
|
v.SetDefault(cfgKludgeUseDefaultXMLNSForCompleteMultipartUpload, false)
|
|
v.SetDefault(cfgKludgeCompleteMultipartUploadKeepalive, 10*time.Second)
|
|
v.SetDefault(cfgKludgeBypassContentEncodingCheckInChunks, false)
|
|
|
|
// Bind flags
|
|
if err := bindFlags(v, flags); err != nil {
|
|
panic(fmt.Errorf("bind flags: %w", err))
|
|
}
|
|
|
|
if err := flags.Parse(os.Args); err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
if v.IsSet(cfgServer+".0."+cfgTLSKeyFile) && v.IsSet(cfgServer+".0."+cfgTLSCertFile) {
|
|
v.Set(cfgServer+".0."+cfgTLSEnabled, true)
|
|
}
|
|
|
|
if resolveMethods != nil {
|
|
v.SetDefault(cfgResolveOrder, *resolveMethods)
|
|
}
|
|
|
|
if peers != nil && len(*peers) > 0 {
|
|
for i := range *peers {
|
|
v.SetDefault(cfgPeers+"."+strconv.Itoa(i)+".address", (*peers)[i])
|
|
v.SetDefault(cfgPeers+"."+strconv.Itoa(i)+".weight", 1)
|
|
v.SetDefault(cfgPeers+"."+strconv.Itoa(i)+".priority", 1)
|
|
}
|
|
}
|
|
|
|
if domains != nil && len(*domains) > 0 {
|
|
v.SetDefault(cfgListenDomains, *domains)
|
|
}
|
|
|
|
switch {
|
|
case help != nil && *help:
|
|
fmt.Printf("FrostFS S3 gateway %s\n", version.Version)
|
|
flags.PrintDefaults()
|
|
|
|
fmt.Println()
|
|
fmt.Println("Default environments:")
|
|
fmt.Println()
|
|
keys := v.AllKeys()
|
|
sort.Strings(keys)
|
|
|
|
for i := range keys {
|
|
if _, ok := ignore[keys[i]]; ok {
|
|
continue
|
|
}
|
|
|
|
defaultValue := v.GetString(keys[i])
|
|
if len(defaultValue) == 0 {
|
|
continue
|
|
}
|
|
|
|
k := strings.Replace(keys[i], ".", "_", -1)
|
|
fmt.Printf("%s_%s = %s\n", envPrefix, strings.ToUpper(k), defaultValue)
|
|
}
|
|
|
|
fmt.Println()
|
|
fmt.Println("Peers preset:")
|
|
fmt.Println()
|
|
|
|
fmt.Printf("%s_%s_[N]_ADDRESS = string\n", envPrefix, strings.ToUpper(cfgPeers))
|
|
fmt.Printf("%s_%s_[N]_WEIGHT = 0..1 (float)\n", envPrefix, strings.ToUpper(cfgPeers))
|
|
|
|
os.Exit(0)
|
|
case versionFlag != nil && *versionFlag:
|
|
fmt.Printf("FrostFS S3 Gateway\nVersion: %s\nGoVersion: %s\n", version.Version, runtime.Version())
|
|
os.Exit(0)
|
|
}
|
|
|
|
if err := readInConfig(v); err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
return v
|
|
}
|
|
|
|
func bindFlags(v *viper.Viper, flags *pflag.FlagSet) error {
|
|
if err := v.BindPFlag(cfgPProfEnabled, flags.Lookup(cmdPProf)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgPrometheusEnabled, flags.Lookup(cmdMetrics)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cmdConfig, flags.Lookup(cmdConfig)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cmdConfigDir, flags.Lookup(cmdConfigDir)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgWalletPath, flags.Lookup(cmdWallet)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgWalletAddress, flags.Lookup(cmdAddress)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgHealthcheckTimeout, flags.Lookup(cfgHealthcheckTimeout)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgConnectTimeout, flags.Lookup(cfgConnectTimeout)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgRebalanceInterval, flags.Lookup(cfgRebalanceInterval)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgMaxClientsCount, flags.Lookup(cfgMaxClientsCount)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgMaxClientsDeadline, flags.Lookup(cfgMaxClientsDeadline)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgRPCEndpoint, flags.Lookup(cfgRPCEndpoint)); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := v.BindPFlag(cfgServer+".0.address", flags.Lookup(cmdListenAddress)); err != nil {
|
|
return err
|
|
}
|
|
if err := v.BindPFlag(cfgServer+".0."+cfgTLSKeyFile, flags.Lookup(cfgTLSKeyFile)); err != nil {
|
|
return err
|
|
}
|
|
return v.BindPFlag(cfgServer+".0."+cfgTLSCertFile, flags.Lookup(cfgTLSCertFile))
|
|
}
|
|
|
|
func readInConfig(v *viper.Viper) error {
|
|
if v.IsSet(cmdConfig) {
|
|
if err := readConfig(v); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if v.IsSet(cmdConfigDir) {
|
|
if err := readConfigDir(v); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func readConfigDir(v *viper.Viper) error {
|
|
cfgSubConfigDir := v.GetString(cmdConfigDir)
|
|
entries, err := os.ReadDir(cfgSubConfigDir)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, entry := range entries {
|
|
if entry.IsDir() {
|
|
continue
|
|
}
|
|
ext := path.Ext(entry.Name())
|
|
if ext != ".yaml" && ext != ".yml" {
|
|
continue
|
|
}
|
|
|
|
if err = mergeConfig(v, path.Join(cfgSubConfigDir, entry.Name())); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func readConfig(v *viper.Viper) error {
|
|
for _, fileName := range v.GetStringSlice(cmdConfig) {
|
|
if err := mergeConfig(v, fileName); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func mergeConfig(v *viper.Viper, fileName string) error {
|
|
cfgFile, err := os.Open(fileName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer func() {
|
|
if errClose := cfgFile.Close(); errClose != nil {
|
|
panic(errClose)
|
|
}
|
|
}()
|
|
|
|
return v.MergeConfig(cfgFile)
|
|
}
|
|
|
|
// newLogger constructs a Logger instance for the current application.
|
|
// Panics on failure.
|
|
//
|
|
// Logger contains a logger is built from zap's production logging configuration with:
|
|
// - parameterized level (debug by default)
|
|
// - console encoding
|
|
// - ISO8601 time encoding
|
|
//
|
|
// and atomic log level to dynamically change it.
|
|
//
|
|
// Logger records a stack trace for all messages at or above fatal level.
|
|
//
|
|
// See also zapcore.Level, zap.NewProductionConfig, zap.AddStacktrace.
|
|
func newLogger(v *viper.Viper) *Logger {
|
|
lvl, err := getLogLevel(v)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
c := zap.NewProductionConfig()
|
|
c.Level = zap.NewAtomicLevelAt(lvl)
|
|
c.Encoding = "console"
|
|
c.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
|
|
|
|
l, err := c.Build(
|
|
zap.AddStacktrace(zap.NewAtomicLevelAt(zap.FatalLevel)),
|
|
)
|
|
if err != nil {
|
|
panic(fmt.Sprintf("build zap logger instance: %v", err))
|
|
}
|
|
|
|
return &Logger{
|
|
logger: l,
|
|
lvl: c.Level,
|
|
}
|
|
}
|
|
|
|
func getLogLevel(v *viper.Viper) (zapcore.Level, error) {
|
|
var lvl zapcore.Level
|
|
lvlStr := v.GetString(cfgLoggerLevel)
|
|
err := lvl.UnmarshalText([]byte(lvlStr))
|
|
if err != nil {
|
|
return lvl, fmt.Errorf("incorrect logger level configuration %s (%v), "+
|
|
"value should be one of %v", lvlStr, err, [...]zapcore.Level{
|
|
zapcore.DebugLevel,
|
|
zapcore.InfoLevel,
|
|
zapcore.WarnLevel,
|
|
zapcore.ErrorLevel,
|
|
zapcore.DPanicLevel,
|
|
zapcore.PanicLevel,
|
|
zapcore.FatalLevel,
|
|
})
|
|
}
|
|
return lvl, nil
|
|
}
|