Add support for custom attributes to vsphere input (influxdata#5971)

plugins/inputs/vsphere/README.md

@@ -118,9 +118,13 @@ vm_metric_exclude = [ "*" ]
     "storageAdapter.write.average",
     "sys.uptime.latest",
   ]
+    ## Collect IP addresses? Valid values are "ipv4" and "ipv6"
+  # ip_addresses = ["ipv6", "ipv4" ]
+  
   # host_metric_exclude = [] ## Nothing excluded by default
   # host_instances = true ## true by default
 
+
   ## Clusters
   # cluster_include = [ "/*/host/**"] # Inventory path to clusters to collect (by default all are collected)
   # cluster_metric_include = [] ## if omitted or empty, all metrics are collected
@@ -173,6 +177,17 @@ vm_metric_exclude = [ "*" ]
   ## the plugin. Setting this flag to "false" will send values as floats to
   ## preserve the full precision when averaging takes place.
   # use_int_samples = true
+  
+  ## Custom attributes from vCenter can be very useful for queries in order to slice the
+  ## metrics along different dimension and for forming ad-hoc relationships. They are disabled
+  ## by default, since they can add a considerable amount of tags to the resulting metrics. To
+  ## enable, simply set custom_attribute_exlude to [] (empty set) and use custom_attribute_include
+  ## to select the attributes you want to include. 
+  # by default, since they can add a considerable amount of tags to the resulting metrics. To
+  # enable, simply set custom_attribute_exlude to [] (empty set) and use custom_attribute_include
+  # to select the attributes you want to include. 
+  # custom_attribute_include = []
+  # custom_attribute_exclude = ["*"] # Default is to exclude everything
 
   ## Optional SSL Config
   # ssl_ca = "/path/to/cafile"
@@ -241,7 +256,7 @@ to a file system. A vSphere inventory has a structure similar to this:
 #### Using Inventory Paths
 Using familiar UNIX-style paths, one could select e.g. VM2 with the path ```/DC0/vm/VM2```.
 
-Often, we want to select a group of resource, such as all the VMs in a folder. We could use the path ```/DC0/vm/Folder1/*``` for that.
+Often, we want to select a group of resource, such as all the VMs in a folder. We could use the path ```/DC0/vm/Folder1/*``` for that. 
 
 Another possibility is to select objects using a partial name, such as ```/DC0/vm/Folder1/hadoop*``` yielding all vms in Folder1 with a name starting with "hadoop".
 

plugins/inputs/vsphere/client.go

@@ -305,3 +305,18 @@ func (c *Client) ListResources(ctx context.Context, root *view.ContainerView, ki
 	defer cancel1()
 	return root.Retrieve(ctx1, kind, ps, dst)
 }
+
+func (c *Client) GetCustomFields(ctx context.Context) (map[int32]string, error) {
+	ctx1, cancel1 := context.WithTimeout(ctx, c.Timeout)
+	defer cancel1()
+	cfm := object.NewCustomFieldsManager(c.Client.Client)
+	fields, err := cfm.Field(ctx1)
+	if err != nil {
+		return nil, err
+	}
+	r := make(map[int32]string)
+	for _, f := range fields {
+		r[f.Key] = f.Name
+	}
+	return r, nil
+}

plugins/inputs/vsphere/endpoint.go

@@ -26,6 +26,10 @@ import (
 
 var isolateLUN = regexp.MustCompile(".*/([^/]+)/?$")
 
+var isIPv4 = regexp.MustCompile("^(?:[0-9]{1,3}\\.){3}[0-9]{1,3}$")
+
+var isIPv6 = regexp.MustCompile("^(?:[A-Fa-f0-9]{0,4}:){1,7}[A-Fa-f0-9]{1,4}$")
+
 const metricLookback = 3 // Number of time periods to look back at for non-realtime metrics
 
 const rtMetricLookback = 3 // Number of time periods to look back at for realtime metrics
@@ -37,16 +41,19 @@ const maxMetadataSamples = 100 // Number of resources to sample for metric metad
 // Endpoint is a high-level representation of a connected vCenter endpoint. It is backed by the lower
 // level Client type.
 type Endpoint struct {
-	Parent          *VSphere
-	URL             *url.URL
-	resourceKinds   map[string]*resourceKind
-	hwMarks         *TSCache
-	lun2ds          map[string]string
-	discoveryTicker *time.Ticker
-	collectMux      sync.RWMutex
-	initialized     bool
-	clientFactory   *ClientFactory
-	busy            sync.Mutex
+	Parent            *VSphere
+	URL               *url.URL
+	resourceKinds     map[string]*resourceKind
+	hwMarks           *TSCache
+	lun2ds            map[string]string
+	discoveryTicker   *time.Ticker
+	collectMux        sync.RWMutex
+	initialized       bool
+	clientFactory     *ClientFactory
+	busy              sync.Mutex
+	customFields      map[int32]string
+	customAttrFilter  filter.Filter
+	customAttrEnabled bool
 }
 
 type resourceKind struct {
@@ -80,12 +87,14 @@ type metricEntry struct {
 type objectMap map[string]objectRef
 
 type objectRef struct {
-	name      string
-	altID     string
-	ref       types.ManagedObjectReference
-	parentRef *types.ManagedObjectReference //Pointer because it must be nillable
-	guest     string
-	dcname    string
+	name         string
+	altID        string
+	ref          types.ManagedObjectReference
+	parentRef    *types.ManagedObjectReference //Pointer because it must be nillable
+	guest        string
+	dcname       string
+	customValues map[string]string
+	lookup       map[string]string
 }
 
 func (e *Endpoint) getParent(obj *objectRef, res *resourceKind) (*objectRef, bool) {
@@ -101,12 +110,14 @@ func (e *Endpoint) getParent(obj *objectRef, res *resourceKind) (*objectRef, boo
 // as parameters.
 func NewEndpoint(ctx context.Context, parent *VSphere, url *url.URL) (*Endpoint, error) {
 	e := Endpoint{
-		URL:           url,
-		Parent:        parent,
-		hwMarks:       NewTSCache(1 * time.Hour),
-		lun2ds:        make(map[string]string),
-		initialized:   false,
-		clientFactory: NewClientFactory(ctx, url, parent),
+		URL:               url,
+		Parent:            parent,
+		hwMarks:           NewTSCache(1 * time.Hour),
+		lun2ds:            make(map[string]string),
+		initialized:       false,
+		clientFactory:     NewClientFactory(ctx, url, parent),
+		customAttrFilter:  newFilterOrPanic(parent.CustomAttributeInclude, parent.CustomAttributeExclude),
+		customAttrEnabled: anythingEnabled(parent.CustomAttributeExclude),
 	}
 
 	e.resourceKinds = map[string]*resourceKind{
@@ -259,6 +270,20 @@ func (e *Endpoint) initalDiscovery(ctx context.Context) {
 }
 
 func (e *Endpoint) init(ctx context.Context) error {
+	client, err := e.clientFactory.GetClient(ctx)
+	if err != nil {
+		return err
+	}
+
+	// Initial load of custom field metadata
+	if e.customAttrEnabled {
+		fields, err := client.GetCustomFields(ctx)
+		if err != nil {
+			log.Println("W! [inputs.vsphere] Could not load custom field metadata")
+		} else {
+			e.customFields = fields
+		}
+	}
 
 	if e.Parent.ObjectDiscoveryInterval.Duration > 0 {
 
@@ -427,6 +452,16 @@ func (e *Endpoint) discover(ctx context.Context) error {
 		}
 	}
 
+	// Load custom field metadata
+	var fields map[int32]string
+	if e.customAttrEnabled {
+		fields, err = client.GetCustomFields(ctx)
+		if err != nil {
+			log.Println("W! [inputs.vsphere] Could not load custom field metadata")
+			fields = nil
+		}
+	}
+
 	// Atomically swap maps
 	e.collectMux.Lock()
 	defer e.collectMux.Unlock()
@@ -436,6 +471,10 @@ func (e *Endpoint) discover(ctx context.Context) error {
 	}
 	e.lun2ds = l2d
 
+	if fields != nil {
+		e.customFields = fields
+	}
+
 	sw.Stop()
 	SendInternalCounterWithTags("discovered_objects", e.URL.Host, map[string]string{"type": "instance-total"}, numRes)
 	return nil
@@ -609,14 +648,77 @@ func getVMs(ctx context.Context, e *Endpoint, filter *ResourceFilter) (objectMap
 		}
 		guest := "unknown"
 		uuid := ""
+		lookup := make(map[string]string)
+
+		// Extract host name
+		if r.Guest != nil && r.Guest.HostName != "" {
+			lookup["guesthostname"] = r.Guest.HostName
+		}
+
+		// Collect network information
+		for _, net := range r.Guest.Net {
+			if net.DeviceConfigId == -1 {
+				continue
+			}
+			if net.IpConfig == nil || net.IpConfig.IpAddress == nil {
+				continue
+			}
+			ips := make(map[string][]string)
+			for _, ip := range net.IpConfig.IpAddress {
+				addr := ip.IpAddress
+				for _, ipType := range e.Parent.IpAddresses {
+					if !(ipType == "ipv4" && isIPv4.MatchString(addr) ||
+						ipType == "ipv6" && isIPv6.MatchString(addr)) {
+						continue
+					}
+
+					// By convention, we want the preferred addresses to appear first in the array.
+					if _, ok := ips[ipType]; !ok {
+						ips[ipType] = make([]string, 0)
+					}
+					if ip.State == "preferred" {
+						ips[ipType] = append([]string{addr}, ips[ipType]...)
+					} else {
+						ips[ipType] = append(ips[ipType], addr)
+					}
+				}
+			}
+			for ipType, ipList := range ips {
+				lookup["nic/"+strconv.Itoa(int(net.DeviceConfigId))+"/"+ipType] = strings.Join(ipList, ",")
+			}
+		}
+
 		// Sometimes Config is unknown and returns a nil pointer
-		//
 		if r.Config != nil {
 			guest = cleanGuestID(r.Config.GuestId)
 			uuid = r.Config.Uuid
 		}
+		cvs := make(map[string]string)
+		if e.customAttrEnabled {
+			for _, cv := range r.Summary.CustomValue {
+				val := cv.(*types.CustomFieldStringValue)
+				if val.Value == "" {
+					continue
+				}
+				key, ok := e.customFields[val.Key]
+				if !ok {
+					log.Printf("W! [inputs.vsphere] Metadata for custom field %d not found. Skipping", val.Key)
+					continue
+				}
+				if e.customAttrFilter.Match(key) {
+					cvs[key] = val.Value
+				}
+			}
+		}
 		m[r.ExtensibleManagedObject.Reference().Value] = objectRef{
-			name: r.Name, ref: r.ExtensibleManagedObject.Reference(), parentRef: r.Runtime.Host, guest: guest, altID: uuid}
+			name:         r.Name,
+			ref:          r.ExtensibleManagedObject.Reference(),
+			parentRef:    r.Runtime.Host,
+			guest:        guest,
+			altID:        uuid,
+			customValues: cvs,
+			lookup:       lookup,
+		}
 	}
 	return m, nil
 }
@@ -1032,6 +1134,9 @@ func (e *Endpoint) populateTags(objectRef *objectRef, resourceType string, resou
 			if objectRef.guest != "" {
 				t["guest"] = objectRef.guest
 			}
+			if gh := objectRef.lookup["guesthostname"]; gh != "" {
+				t["guesthostname"] = gh
+			}
 			if c, ok := e.resourceKinds["cluster"].objects[parent.parentRef.Value]; ok {
 				t["clustername"] = c.name
 			}
@@ -1062,6 +1167,17 @@ func (e *Endpoint) populateTags(objectRef *objectRef, resourceType string, resou
 		t["disk"] = cleanDiskTag(instance)
 	} else if strings.HasPrefix(name, "net.") {
 		t["interface"] = instance
+
+		// Add IP addresses to NIC data.
+		if resourceType == "vm" && objectRef.lookup != nil {
+			key := "nic/" + t["interface"] + "/"
+			if ip, ok := objectRef.lookup[key+"ipv6"]; ok {
+				t["ipv6"] = ip
+			}
+			if ip, ok := objectRef.lookup[key+"ipv4"]; ok {
+				t["ipv4"] = ip
+			}
+		}
 	} else if strings.HasPrefix(name, "storageAdapter.") {
 		t["adapter"] = instance
 	} else if strings.HasPrefix(name, "storagePath.") {
@@ -1076,6 +1192,15 @@ func (e *Endpoint) populateTags(objectRef *objectRef, resourceType string, resou
 		// default
 		t["instance"] = v.Instance
 	}
+
+	// Fill in custom values if they exist
+	if objectRef.customValues != nil {
+		for k, v := range objectRef.customValues {
+			if v != "" {
+				t[k] = v
+			}
+		}
+	}
 }
 
 func (e *Endpoint) makeMetricIdentifier(prefix, metric string) (string, string) {

plugins/inputs/vsphere/finder.go

@@ -231,8 +231,9 @@ func init() {
 	}
 
 	addFields = map[string][]string{
-		"HostSystem":             {"parent"},
-		"VirtualMachine":         {"runtime.host", "config.guestId", "config.uuid", "runtime.powerState"},
+		"HostSystem": {"parent"},
+		"VirtualMachine": {"runtime.host", "config.guestId", "config.uuid", "runtime.powerState",
+			"summary.customValue", "guest.net", "guest.hostName"},
 		"Datastore":              {"parent", "info"},
 		"ClusterComputeResource": {"parent"},
 		"Datacenter":             {"parent"},

plugins/inputs/vsphere/vsphere.go

@@ -40,7 +40,10 @@ type VSphere struct {
 	DatastoreMetricExclude  []string
 	DatastoreInclude        []string
 	Separator               string
+	CustomAttributeInclude  []string
+	CustomAttributeExclude  []string
 	UseIntSamples           bool
+	IpAddresses             []string
 
 	MaxQueryObjects         int
 	MaxQueryMetrics         int
@@ -155,6 +158,8 @@ var sampleConfig = `
     "storageAdapter.write.average",
     "sys.uptime.latest",
   ]
+  ## Collect IP addresses? Valid values are "ipv4" and "ipv6"
+  # ip_addresses = ["ipv6", "ipv4" ]
   # host_metric_exclude = [] ## Nothing excluded by default
   # host_instances = true ## true by default
 
@@ -173,7 +178,7 @@ var sampleConfig = `
   datacenter_metric_exclude = [ "*" ] ## Datacenters are not collected by default.
   # datacenter_instances = false ## false by default for Datastores only
 
-  ## Plugin Settings
+  ## Plugin Settings  
   ## separator character to use for measurement and field names (default: "_")
   # separator = "_"
 
@@ -208,6 +213,14 @@ var sampleConfig = `
   ## preserve the full precision when averaging takes place.
   # use_int_samples = true
 
+  ## Custom attributes from vCenter can be very useful for queries in order to slice the
+  ## metrics along different dimension and for forming ad-hoc relationships. They are disabled
+  ## by default, since they can add a considerable amount of tags to the resulting metrics. To
+  ## enable, simply set custom_attribute_exlude to [] (empty set) and use custom_attribute_include
+  ## to select the attributes you want to include.
+  # custom_attribute_include = []
+  # custom_attribute_exclude = ["*"] 
+
   ## Optional SSL Config
   # ssl_ca = "/path/to/cafile"
   # ssl_cert = "/path/to/certfile"
@@ -321,7 +334,10 @@ func init() {
 			DatastoreMetricExclude:  nil,
 			DatastoreInclude:        []string{"/*/datastore/**"},
 			Separator:               "_",
+			CustomAttributeInclude:  []string{},
+			CustomAttributeExclude:  []string{"*"},
 			UseIntSamples:           true,
+			IpAddresses:             []string{},
 
 			MaxQueryObjects:         256,
 			MaxQueryMetrics:         256,