mount ignore refactor

etc/collector.yml

@@ -2,6 +2,7 @@ logger:
   dir: logs/collector
   level: WARNING
   keepHours: 2
+
 identity:
   specify: ""
   shell: ifconfig `route|grep '^default'|awk '{print $NF}'`|grep inet|awk '{print $2}'|awk -F ':' '{print $NF}'|head -n 1
@@ -18,12 +19,18 @@ sys:
   timeout: 1000
   interval: 20
   plugin: ./plugin
+
+  # monitor nic which filtered by prefix
   ifacePrefix:
     - eth
     - em
-  mountPoint: []
-  mountIgnorePrefix:
+
+  # ignore disk mount point
+  mountIgnore:
+    prefix:
       - /var/lib
+    # collect anyway
+    exclude: []
 
   ignoreMetrics:
     - cpu.core.idle

src/modules/collector/collector.go

@@ -28,7 +28,10 @@ import (
 	"github.com/toolkits/pkg/runner"
 )
 
-const version = 1
+// changelog:
+// 1: init project
+// 2: mount ignore refactor
+const version = 2
 
 var (
 	vers *bool

src/modules/collector/sys/config.go

@@ -2,8 +2,7 @@ package sys
 
 type SysSection struct {
 	IfacePrefix      []string            `yaml:"ifacePrefix"`
-	MountPoint        []string            `yaml:"mountPoint"`
-	MountIgnorePrefix []string            `yaml:"mountIgnorePrefix"`
+	MountIgnore      MountIgnoreSection  `yaml:"mountIgnore"`
 	IgnoreMetrics    []string            `yaml:"ignoreMetrics"`
 	IgnoreMetricsMap map[string]struct{} `yaml:"-"`
 	NtpServers       []string            `yaml:"ntpServers"`
@@ -13,6 +12,11 @@ type SysSection struct {
 	Timeout          int                 `yaml:"timeout"`
 }
 
+type MountIgnoreSection struct {
+	Prefix  []string `yaml:"prefix"`
+	Exclude []string `yaml:"exclude"`
+}
+
 var Config SysSection
 
 func Init(s SysSection) {

src/modules/collector/sys/funcs/dfstat.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/toolkits/pkg/logger"
 	"github.com/toolkits/pkg/nux"
+	"github.com/toolkits/pkg/slice"
 )
 
 func DeviceMetrics() []*dataobj.MetricValue {
@@ -21,26 +22,11 @@ func DeviceMetrics() []*dataobj.MetricValue {
 		return ret
 	}
 
-	var myMountPoints = make(map[string]bool)
-	if len(sys.Config.MountPoint) > 0 {
-		for _, mp := range sys.Config.MountPoint {
-			myMountPoints[mp] = true
-		}
-	}
-
-	ignoreMountPointsPrefix := sys.Config.MountIgnorePrefix
-
 	var diskTotal uint64 = 0
 	var diskUsed uint64 = 0
 
 	for idx := range mountPoints {
 		fsSpec, fsFile, fsVfstype := mountPoints[idx][0], mountPoints[idx][1], mountPoints[idx][2]
-		if len(myMountPoints) > 0 {
-			if _, ok := myMountPoints[fsFile]; !ok {
-				logger.Debug("mount point not matched with config", fsFile, "ignored.")
-				continue
-			}
-		}
 
 		if _, exists := fsFileFilter[fsFile]; exists {
 			logger.Debugf("mount point %s was collected", fsFile)
@@ -49,7 +35,9 @@ func DeviceMetrics() []*dataobj.MetricValue {
 			fsFileFilter[fsFile] = struct{}{}
 		}
 
-		if hasIgnorePrefix(fsFile, ignoreMountPointsPrefix) {
+		// 注意: 虽然前缀被忽略了，但是被忽略的这部分分区里边有些仍然是需要采集的
+		if hasIgnorePrefix(fsFile, sys.Config.MountIgnore.Prefix) &&
+			!slice.ContainsString(sys.Config.MountIgnore.Exclude, fsFile) {
 			continue
 		}
 

src/modules/collector/sys/funcs/fsstat.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/toolkits/pkg/logger"
 	"github.com/toolkits/pkg/nux"
+	"github.com/toolkits/pkg/slice"
 )
 
 func FsRWMetrics() []*dataobj.MetricValue {
@@ -26,8 +27,6 @@ func FsRWMetrics() []*dataobj.MetricValue {
 
 	fsFileFilter := make(map[string]struct{}) //过滤 /proc/mounts 出现重复的fsFile
 
-	ignoreMountPointsPrefix := sys.Config.MountIgnorePrefix
-
 	for idx := range mountPoints {
 		var du *nux.DeviceUsage
 		du, err = nux.BuildDeviceUsage(mountPoints[idx][0], mountPoints[idx][1], mountPoints[idx][2])
@@ -36,7 +35,8 @@ func FsRWMetrics() []*dataobj.MetricValue {
 			continue
 		}
 
-		if hasIgnorePrefix(mountPoints[idx][1], ignoreMountPointsPrefix) {
+		if hasIgnorePrefix(du.FsFile, sys.Config.MountIgnore.Prefix) &&
+			!slice.ContainsString(sys.Config.MountIgnore.Exclude, du.FsFile) {
 			continue
 		}