chore: use Linux container CPU quota

Go is not cgroup aware and by default will set GOMAXPROCS to the number
of available threads, regardless of whether it is within the allocated
quota. This behaviour causes high amount of CPU throttling and degraded
application performance.

Fixes: #584

Author: uhthomas

collector/cmd/collector-metrics/collector-metrics.go

@@ -17,6 +17,7 @@ import (
 	utils "github.com/analogj/go-util/utils"
 	"github.com/fatih/color"
 	"github.com/urfave/cli/v2"
+	_ "go.uber.org/automaxprocs"
 )
 
 var goos string
@@ -37,8 +38,8 @@ func main() {
 	}
 
 	//we're going to load the config file manually, since we need to validate it.
-	err = config.ReadConfig(configFilePath) // Find and read the config file
-	if _, ok := err.(errors.ConfigFileMissingError); ok {          // Handle errors reading the config file
+	err = config.ReadConfig(configFilePath)               // Find and read the config file
+	if _, ok := err.(errors.ConfigFileMissingError); ok { // Handle errors reading the config file
 		//ignore "could not find config file"
 	} else if err != nil {
 		os.Exit(1)

collector/cmd/collector-selftest/collector-selftest.go

@@ -13,6 +13,7 @@ import (
 	utils "github.com/analogj/go-util/utils"
 	"github.com/fatih/color"
 	"github.com/urfave/cli/v2"
+	_ "go.uber.org/automaxprocs"
 )
 
 var goos string

webapp/backend/cmd/scrutiny/scrutiny.go

@@ -16,6 +16,7 @@ import (
 	utils "github.com/analogj/go-util/utils"
 	"github.com/fatih/color"
 	"github.com/urfave/cli/v2"
+	_ "go.uber.org/automaxprocs"
 )
 
 var goos string
@@ -36,8 +37,8 @@ func main() {
 	}
 
 	//we're going to load the config file manually, since we need to validate it.
-	err = config.ReadConfig(configFilePath) // Find and read the config file
-	if _, ok := err.(errors.ConfigFileMissingError); ok {         // Handle errors reading the config file
+	err = config.ReadConfig(configFilePath)               // Find and read the config file
+	if _, ok := err.(errors.ConfigFileMissingError); ok { // Handle errors reading the config file
 		//ignore "could not find config file"
 	} else if err != nil {
 		log.Print(color.HiRedString("CONFIG ERROR: %v", err))

webapp/backend/pkg/models/testdata/helper.go

@@ -12,6 +12,7 @@ import (
 	"time"
 
 	"github.com/analogj/scrutiny/webapp/backend/pkg/models/collector"
+	_ "go.uber.org/automaxprocs"
 )
 
 func main() {