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flags.go
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flags.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Tetragon
package main
import (
"time"
"github.com/cilium/tetragon/pkg/logger"
"github.com/cilium/tetragon/pkg/option"
"github.com/spf13/viper"
)
const (
keyConfigDir = "config-dir"
keyDebug = "debug"
keyHubbleLib = "bpf-lib"
keyBTF = "btf"
keyProcFS = "procfs"
keyKernelVersion = "kernel"
keyVerbosity = "verbose"
keyProcessCacheSize = "process-cache-size"
keyForceSmallProgs = "force-small-progs"
keyLogLevel = "log-level"
keyLogFormat = "log-format"
keyEnableK8sAPI = "enable-k8s-api"
keyEnableCiliumAPI = "enable-cilium-api"
keyEnableProcessAncestors = "enable-process-ancestors"
keyMetricsServer = "metrics-server"
keyServerAddress = "server-address"
keyGopsAddr = "gops-address"
keyCiliumBPF = "cilium-bpf"
keyEnableProcessCred = "enable-process-cred"
keyEnableProcessNs = "enable-process-ns"
keyConfigFile = "config-file"
keyCpuProfile = "cpuprofile"
keyMemProfile = "memprofile"
keyExportFilename = "export-filename"
keyExportFileMaxSizeMB = "export-file-max-size-mb"
keyExportFileRotationInterval = "export-file-rotation-interval"
keyExportFileMaxBackups = "export-file-max-backups"
keyExportFileCompress = "export-file-compress"
keyExportRateLimit = "export-rate-limit"
keyEnableExportAggregation = "enable-export-aggregation"
keyExportAggregationWindowSize = "export-aggregation-window-size"
keyExportAggregationBufferSize = "export-aggregation-buffer-size"
keyExportAllowlist = "export-allowlist"
keyExportDenylist = "export-denylist"
keyFieldFilters = "field-filters"
keyNetnsDir = "netns-dir"
keyDisableKprobeMulti = "disable-kprobe-multi"
keyRBSize = "rb-size"
keyRBSizeTotal = "rb-size-total"
keyReleasePinnedBPF = "release-pinned-bpf"
keyEventQueueSize = "event-queue-size"
)
var (
processCacheSize int
metricsServer string
serverAddress string
configFile string
exportFilename string
exportFileMaxSizeMB int
exportFileRotationInterval time.Duration
exportFileMaxBackups int
exportFileCompress bool
exportRateLimit int
// Export aggregation options
enableExportAggregation bool
exportAggregationWindowSize time.Duration
exportAggregationBufferSize uint64
cpuProfile string
memProfile string
)
func readAndSetFlags() {
option.Config.HubbleLib = viper.GetString(keyHubbleLib)
option.Config.BTF = viper.GetString(keyBTF)
option.Config.ProcFS = viper.GetString(keyProcFS)
option.Config.KernelVersion = viper.GetString(keyKernelVersion)
option.Config.Verbosity = viper.GetInt(keyVerbosity)
option.Config.ForceSmallProgs = viper.GetBool(keyForceSmallProgs)
option.Config.Debug = viper.GetBool(keyDebug)
option.Config.EnableProcessCred = viper.GetBool(keyEnableProcessCred)
option.Config.EnableProcessNs = viper.GetBool(keyEnableProcessNs)
option.Config.EnableCilium = viper.GetBool(keyEnableCiliumAPI)
option.Config.EnableK8s = viper.GetBool(keyEnableK8sAPI)
option.Config.DisableKprobeMulti = viper.GetBool(keyDisableKprobeMulti)
option.Config.RBSize = viper.GetInt(keyRBSize)
option.Config.RBSizeTotal = viper.GetInt(keyRBSizeTotal)
option.Config.GopsAddr = viper.GetString(keyGopsAddr)
logLevel := viper.GetString(keyLogLevel)
logFormat := viper.GetString(keyLogFormat)
logger.PopulateLogOpts(option.Config.LogOpts, logLevel, logFormat)
processCacheSize = viper.GetInt(keyProcessCacheSize)
metricsServer = viper.GetString(keyMetricsServer)
serverAddress = viper.GetString(keyServerAddress)
option.Config.CiliumDir = viper.GetString(keyCiliumBPF)
configFile = viper.GetString(keyConfigFile)
exportFilename = viper.GetString(keyExportFilename)
exportFileMaxSizeMB = viper.GetInt(keyExportFileMaxSizeMB)
exportFileRotationInterval = viper.GetDuration(keyExportFileRotationInterval)
exportFileMaxBackups = viper.GetInt(keyExportFileMaxBackups)
exportFileCompress = viper.GetBool(keyExportFileCompress)
exportRateLimit = viper.GetInt(keyExportRateLimit)
enableExportAggregation = viper.GetBool(keyEnableExportAggregation)
exportAggregationWindowSize = viper.GetDuration(keyExportAggregationWindowSize)
exportAggregationBufferSize = viper.GetUint64(keyExportAggregationBufferSize)
cpuProfile = viper.GetString(keyCpuProfile)
memProfile = viper.GetString(keyMemProfile)
option.Config.ReleasePinned = viper.GetBool(keyReleasePinnedBPF)
option.Config.EventQueueSize = viper.GetUint(keyEventQueueSize)
}