diff --git a/Gopkg.lock b/Gopkg.lock
index b407a37eee28..bd09d53d4872 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -2,12 +2,12 @@
 
 
 [[projects]]
-  digest = "1:2b10b9a545074605403d32baf9dda24b7582976ba7e9b46c4c7b9da9edac03e7"
+  digest = "1:8b95956b70e181b19025c7ba3578fdfd8efbec4ce916490700488afb9218972c"
   name = "cloud.google.com/go"
   packages = ["compute/metadata"]
   pruneopts = ""
-  revision = "aad3f485ee528456e0768f20397b4d9dd941e755"
-  version = "v0.25.0"
+  revision = "64a2037ec6be8a4b0c1d1f706ed35b428b989239"
+  version = "v0.26.0"
 
 [[projects]]
   digest = "1:b9660f5e3522b899d32b1f9bb98056203d6f76f673e1843eaa00869330103ba5"
@@ -33,17 +33,18 @@
   revision = "de5bf2ad457846296e2031421a34e2568e304e35"
 
 [[projects]]
-  digest = "1:cc7677c0448a5faa80a464041d4247016f1641740af3c3bcba1cd0640bbad636"
+  digest = "1:b6b8cfb7d169d6ce827f955034d251b907d3a56f453f35c4e9c7dd5778fdecd5"
   name = "github.com/argoproj/argo-cd"
   packages = [
     "errors",
     "util/cache",
     "util/diff",
+    "util/json",
     "util/kube",
   ]
   pruneopts = ""
-  revision = "08c63ec234561516ef77ce9672e3bee683998571"
-  version = "v0.6.2"
+  revision = "da7be2e3cae13320e9714beba644aec24dc7c0fa"
+  version = "v0.7.1"
 
 [[projects]]
   branch = "master"
@@ -57,6 +58,14 @@
   pruneopts = ""
   revision = "881057947d921c5d62af84ad15cd3c6fb36d6077"
 
+[[projects]]
+  branch = "master"
+  digest = "1:c0bec5f9b98d0bc872ff5e834fac186b807b656683bd29cb82fb207a1513fabb"
+  name = "github.com/beorn7/perks"
+  packages = ["quantile"]
+  pruneopts = ""
+  revision = "3a771d992973f24aa725d07868b467d1ddfceafb"
+
 [[projects]]
   digest = "1:56c130d885a4aacae1dd9c7b71cfe39912c7ebc1ff7d2b46083c8812996dc43b"
   name = "github.com/davecgh/go-spew"
@@ -204,12 +213,12 @@
   version = "v6.13.2"
 
 [[projects]]
-  digest = "1:94ab904da3a528888677f39d32f9625ea8b2d639146af9c79ff97bda3e8554ae"
+  digest = "1:8ac51c6e631370a05c2fb01715168a3a9f76572b275d85f07c7fc89f5e1782e8"
   name = "github.com/gobuffalo/packr"
   packages = ["."]
   pruneopts = ""
-  revision = "147bee9cde84aeca6693d1b1aedc595298f24d5b"
-  version = "v1.12.0"
+  revision = "9e76dbe10b00dd1fa8f29cfa4fac72297beb32a4"
+  version = "v1.12.1"
 
 [[projects]]
   digest = "1:6e73003ecd35f4487a5e88270d3ca0a81bc80dc88053ac7e4dcfec5fba30d918"
@@ -234,10 +243,12 @@
   digest = "1:f958a1c137db276e52f0b50efee41a1a389dcdded59a69711f3e872757dab34b"
   name = "github.com/golang/protobuf"
   packages = [
+    "jsonpb",
     "proto",
     "ptypes",
     "ptypes/any",
     "ptypes/duration",
+    "ptypes/struct",
     "ptypes/timestamp",
   ]
   pruneopts = ""
@@ -264,6 +275,18 @@
   revision = "7c663266750e7d82587642f65e60bc4083f1f84e"
   version = "v0.2.0"
 
+[[projects]]
+  digest = "1:b563eec078077ba5cedc795462cbd6d7c75a106a4d2e3d02940093c80e28de28"
+  name = "github.com/grpc-ecosystem/grpc-gateway"
+  packages = [
+    "runtime",
+    "runtime/internal",
+    "utilities",
+  ]
+  pruneopts = ""
+  revision = "92583770e3f01b09a0d3e9bdf64321d8bebd48f2"
+  version = "v1.4.1"
+
 [[projects]]
   branch = "master"
   digest = "1:139bdc2c89779b8ff8b1150be28f889b0ed964e6da96f32cbc9035bd4642881c"
@@ -292,12 +315,12 @@
   revision = "bf9dde6d0d2c004a008c27aaee91170c786f6db8"
 
 [[projects]]
-  digest = "1:302c6eb8e669c997bec516a138b8fc496018faa1ece4c13e445a2749fbe079bb"
+  digest = "1:7ab38c15bd21e056e3115c8b526d201eaf74e0308da9370997c6b3c187115d36"
   name = "github.com/imdario/mergo"
   packages = ["."]
   pruneopts = ""
-  revision = "9316a62528ac99aaecb4e47eadd6dc8aa6533d58"
-  version = "v0.3.5"
+  revision = "9f23e2d6bd2a77f959b2bf6acdbefd708a83a4a4"
+  version = "v0.3.6"
 
 [[projects]]
   digest = "1:870d441fe217b8e689d7949fef6e43efbc787e50f200cb1e70dbca9204a1d6be"
@@ -324,12 +347,12 @@
   revision = "8eab2debe79d12b7bd3d10653910df25fa9552ba"
 
 [[projects]]
-  digest = "1:53ac4e911e12dde0ab68655e2006449d207a5a681f084974da2b06e5dbeaca72"
+  digest = "1:b79fc583e4dc7055ed86742e22164ac41bf8c0940722dbcb600f1a3ace1a8cb5"
   name = "github.com/json-iterator/go"
   packages = ["."]
   pruneopts = ""
-  revision = "ab8a2e0c74be9d3be70b3184d9acc634935ded82"
-  version = "1.1.4"
+  revision = "1624edc4454b8682399def8740d46db5e4362ba4"
+  version = "1.1.5"
 
 [[projects]]
   digest = "1:7fe04787f53bb61c1ba9c659b1a90ee3da16b4d6a1c41566bcb5077efbd30f97"
@@ -341,7 +364,7 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:a08d7acad9a44f9aff9571a4ed9e5661169650ef3e8aaccb2086d73cfd6cb984"
+  digest = "1:e977ed7b0619844e394c4e725d008ade0840f1882c500a66e797b98bde70cf87"
   name = "github.com/mailru/easyjson"
   packages = [
     "buffer",
@@ -349,7 +372,15 @@
     "jwriter",
   ]
   pruneopts = ""
-  revision = "d5012789d6659eeed305f54c1b1542e7b65829e6"
+  revision = "03f2033d19d5860aef995fe360ac7d395cd8ce65"
+
+[[projects]]
+  digest = "1:63722a4b1e1717be7b98fc686e0b30d5e7f734b9e93d7dee86293b6deab7ea28"
+  name = "github.com/matttproud/golang_protobuf_extensions"
+  packages = ["pbutil"]
+  pruneopts = ""
+  revision = "c12348ce28de40eed0136aa2b644d0ee0650e56c"
+  version = "v1.0.1"
 
 [[projects]]
   branch = "master"
@@ -377,11 +408,11 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:99651e95333755cbe5c9768c1b80031300acca64a80870b40309202b32585a5a"
+  digest = "1:83854f6b1d2ce047b69657e3a87ba7602f4c5505e8bdfd02ab857db8e983bde1"
   name = "github.com/mitchellh/go-homedir"
   packages = ["."]
   pruneopts = ""
-  revision = "3864e76763d94a6df2f9960b16a20a33da9f9a66"
+  revision = "58046073cbffe2f25d425fe1331102f55cf719de"
 
 [[projects]]
   digest = "1:0c0ff2a89c1bb0d01887e1dac043ad7efbf3ec77482ef058ac423d13497e16fd"
@@ -431,6 +462,50 @@
   revision = "792786c7400a136282c1664665ae0a8db921c6c2"
   version = "v1.0.0"
 
+[[projects]]
+  digest = "1:4142d94383572e74b42352273652c62afec5b23f325222ed09198f46009022d1"
+  name = "github.com/prometheus/client_golang"
+  packages = [
+    "prometheus",
+    "prometheus/promhttp",
+  ]
+  pruneopts = ""
+  revision = "c5b7fccd204277076155f10851dad72b76a49317"
+  version = "v0.8.0"
+
+[[projects]]
+  branch = "master"
+  digest = "1:185cf55b1f44a1bf243558901c3f06efa5c64ba62cfdcbb1bf7bbe8c3fb68561"
+  name = "github.com/prometheus/client_model"
+  packages = ["go"]
+  pruneopts = ""
+  revision = "5c3871d89910bfb32f5fcab2aa4b9ec68e65a99f"
+
+[[projects]]
+  branch = "master"
+  digest = "1:f477ef7b65d94fb17574fc6548cef0c99a69c1634ea3b6da248b63a61ebe0498"
+  name = "github.com/prometheus/common"
+  packages = [
+    "expfmt",
+    "internal/bitbucket.org/ww/goautoneg",
+    "model",
+  ]
+  pruneopts = ""
+  revision = "c7de2306084e37d54b8be01f3541a8464345e9a5"
+
+[[projects]]
+  branch = "master"
+  digest = "1:e04aaa0e8f8da0ed3d6c0700bd77eda52a47f38510063209d72d62f0ef807d5e"
+  name = "github.com/prometheus/procfs"
+  packages = [
+    ".",
+    "internal/util",
+    "nfs",
+    "xfs",
+  ]
+  pruneopts = ""
+  revision = "05ee40e3a273f7245e8777337fc7b46e533a9a92"
+
 [[projects]]
   digest = "1:3962f553b77bf6c03fc07cd687a22dd3b00fe11aa14d31194f5505f5bb65cdc8"
   name = "github.com/sergi/go-diff"
@@ -498,12 +573,12 @@
   version = "v1.2.2"
 
 [[projects]]
-  digest = "1:e139a0dfe24e723193005b291ed82a975041718cfcab9136aa6c9540df70a4ff"
+  digest = "1:3ddca2bd5496c6922a2a9e636530e178a43c2a534ea6634211acdc7d10222794"
   name = "github.com/tidwall/gjson"
   packages = ["."]
   pruneopts = ""
-  revision = "f123b340873a0084cb27267eddd8ff615115fbff"
-  version = "v1.1.2"
+  revision = "1e3f6aeaa5bad08d777ea7807b279a07885dd8b2"
+  version = "v1.1.3"
 
 [[projects]]
   branch = "master"
@@ -569,7 +644,7 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:cae234a803b78380e4d769db6036b9fcc8c08ed4ff862571ffc1a958edc1f629"
+  digest = "1:53c4b75f22ea7757dea07eae380ea42de547ae6865a5e3b41866754a8a8219c9"
   name = "golang.org/x/crypto"
   packages = [
     "cast5",
@@ -591,11 +666,11 @@
     "ssh/terminal",
   ]
   pruneopts = ""
-  revision = "c126467f60eb25f8f27e5a981f32a87e3965053f"
+  revision = "f027049dab0ad238e394a753dba2d14753473a04"
 
 [[projects]]
   branch = "master"
-  digest = "1:96d281cfaaa12ac602772da38ac85f00d59b1d3aa7bfe69d8ba334d6ee41e3e6"
+  digest = "1:67c2d940f2d5c017ef88e9847709dca9b38d5fe82f1e33fb42ace515219f22f1"
   name = "golang.org/x/net"
   packages = [
     "context",
@@ -606,7 +681,7 @@
     "idna",
   ]
   pruneopts = ""
-  revision = "3673e40ba22529d22c3fd7c93e97b0ce50fa7bdd"
+  revision = "f9ce57c11b242f0f1599cf25c89d8cb02c45295a"
 
 [[projects]]
   branch = "master"
@@ -632,14 +707,14 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:0e1506f3caef942bf9d08a91ebbe8bd87d263e7e440f8e0427b2f85b44eac3f7"
+  digest = "1:6d9c86494d97c7fc8bbab029c17fc0ce9dc517aaae92a25d790d01b0e8732832"
   name = "golang.org/x/sys"
   packages = [
     "unix",
     "windows",
   ]
   pruneopts = ""
-  revision = "e072cadbbdc8dd3d3ffa82b8b4b9304c261d9311"
+  revision = "904bdc257025c7b3f43c19360ad3ab85783fad78"
 
 [[projects]]
   digest = "1:5acd3512b047305d49e8763eef7ba423901e85d5dd2fd1e71778a0ea8de10bd4"
@@ -675,7 +750,7 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:e998e532fc19ae78db55a97f0d761c98cc20c621c2965abed644c3a984d5da76"
+  digest = "1:c73b8c7b4bfb2e69de55a3549d6a8089d7757899cc5b62ff1c180bd76e9ee7f6"
   name = "golang.org/x/tools"
   packages = [
     "go/ast/astutil",
@@ -683,7 +758,7 @@
     "internal/fastwalk",
   ]
   pruneopts = ""
-  revision = "475b7a1e12f029fbb4d210958352057952ea9f7a"
+  revision = "ca6481ae56504398949d597084558e50ad07117a"
 
 [[projects]]
   digest = "1:c1771ca6060335f9768dff6558108bc5ef6c58506821ad43377ee23ff059e472"
@@ -705,6 +780,27 @@
   revision = "b1f26356af11148e710935ed1ac8a7f5702c7612"
   version = "v1.1.0"
 
+[[projects]]
+  branch = "master"
+  digest = "1:c7ecd434ece8887311c33ea3c731e2fb42f43092a43545e350b493b9dcb023b2"
+  name = "google.golang.org/genproto"
+  packages = ["googleapis/rpc/status"]
+  pruneopts = ""
+  revision = "daca94659cb50e9f37c1b834680f2e46358f10b0"
+
+[[projects]]
+  digest = "1:ca75b3775a5d4e5d1fb48f57ef0865b4aaa8b3f00e6b52be68db991c4594e0a7"
+  name = "google.golang.org/grpc"
+  packages = [
+    "codes",
+    "grpclog",
+    "metadata",
+    "status",
+  ]
+  pruneopts = ""
+  revision = "32fb0ac620c32ba40a4626ddf94d90d12cce3455"
+  version = "v1.14.0"
+
 [[projects]]
   digest = "1:75fb3fcfc73a8c723efde7777b40e8e8ff9babf30d8c56160d01beffea8a95a6"
   name = "gopkg.in/inf.v0"
@@ -1034,7 +1130,7 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:38d0c4ac62d52d18f671b436ad51d780f078d9ebeb43a5c43a0375473b34136f"
+  digest = "1:74eb4556b4379d0d76a3a5ada504ff6c5ef76cd85cbf1347cb649e4c1cc8ca9e"
   name = "k8s.io/gengo"
   packages = [
     "args",
@@ -1046,29 +1142,29 @@
     "types",
   ]
   pruneopts = ""
-  revision = "906d99f89cd644eecf75ab547b29bf9f876f0b59"
+  revision = "c42f3cdacc394f43077ff17e327d1b351c0304e4"
 
 [[projects]]
   branch = "master"
-  digest = "1:526095379da1098c3f191a0008cc59c9bf9927492e63da7689e5de424219c162"
+  digest = "1:951bc2047eea6d316a17850244274554f26fd59189360e45f4056b424dadf2c1"
   name = "k8s.io/kube-openapi"
   packages = [
     "pkg/common",
     "pkg/util/proto",
   ]
   pruneopts = ""
-  revision = "d8ea2fe547a448256204cfc68dfee7b26c720acb"
+  revision = "e3762e86a74c878ffed47484592986685639c2cd"
 
 [[projects]]
-  digest = "1:7d2828223fc12b07a19beee8635afd08ad6a47d5393d21f1febfef881ef9eb26"
+  digest = "1:0942d7281ddd72af6e4bcec2162c05deac2069a4163d0fbdc97039f1b5d7324a"
   name = "k8s.io/kubernetes"
   packages = [
     "pkg/apis/core",
     "pkg/kubectl/scheme",
   ]
   pruneopts = ""
-  revision = "32ac1c9073b132b8ba18aa830f46b77dcceb0723"
-  version = "v1.10.5"
+  revision = "a21fdbd78dde8f5447f5f6c331f7eb6f80bd684e"
+  version = "v1.10.6"
 
 [solve-meta]
   analyzer-name = "dep"
@@ -1093,6 +1189,8 @@
     "github.com/minio/minio-go",
     "github.com/minio/minio-go/pkg/credentials",
     "github.com/pkg/errors",
+    "github.com/prometheus/client_golang/prometheus",
+    "github.com/prometheus/client_golang/prometheus/promhttp",
     "github.com/sirupsen/logrus",
     "github.com/spf13/cobra",
     "github.com/stretchr/testify/assert",
@@ -1102,6 +1200,7 @@
     "github.com/valyala/fasttemplate",
     "github.com/yudai/gojsondiff/formatter",
     "golang.org/x/crypto/ssh",
+    "golang.org/x/net/context",
     "golang.org/x/sync/errgroup",
     "gopkg.in/src-d/go-git.v4",
     "gopkg.in/src-d/go-git.v4/plumbing",
diff --git a/Gopkg.toml b/Gopkg.toml
index 4e424bde0341..b4856661acd4 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -62,3 +62,7 @@ required = [
 [[constraint]]
   name = "github.com/Knetic/govaluate"
   revision = "9aa49832a739dcd78a5542ff189fb82c3e423116"
+
+[[constraint]]
+  name = "github.com/prometheus/client_golang"
+  version = "0.8.0"
diff --git a/cmd/workflow-controller/main.go b/cmd/workflow-controller/main.go
index 4f0c3009952e..b00aee7040fb 100644
--- a/cmd/workflow-controller/main.go
+++ b/cmd/workflow-controller/main.go
@@ -70,6 +70,8 @@ func NewRootCommand() *cobra.Command {
 			ctx, cancel := context.WithCancel(context.Background())
 			defer cancel()
 			go wfController.Run(ctx, 8, 8)
+			go wfController.MetricsServer(ctx)
+			go wfController.TelemetryServer(ctx)
 
 			// Wait forever
 			select {}
diff --git a/workflow/controller/controller.go b/workflow/controller/controller.go
index 92bd8718d3e8..50b04efdc90c 100644
--- a/workflow/controller/controller.go
+++ b/workflow/controller/controller.go
@@ -14,6 +14,7 @@ import (
 	wfclientset "github.com/argoproj/argo/pkg/client/clientset/versioned"
 	unstructutil "github.com/argoproj/argo/util/unstructured"
 	"github.com/argoproj/argo/workflow/common"
+	"github.com/argoproj/argo/workflow/metrics"
 	"github.com/ghodss/yaml"
 	log "github.com/sirupsen/logrus"
 	apiv1 "k8s.io/api/core/v1"
@@ -26,6 +27,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/apimachinery/pkg/watch"
 	"k8s.io/client-go/dynamic"
+	"k8s.io/client-go/informers/internalinterfaces"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/rest"
 	"k8s.io/client-go/tools/cache"
@@ -78,11 +80,16 @@ type WorkflowControllerConfig struct {
 	InstanceID string `json:"instanceID,omitempty"`
 
 	MatchLabels map[string]string `json:"matchLabels,omitempty"`
+
+	MetricsConfig metrics.PrometheusConfig `json:"metricsConfig,omitempty"`
+
+	TelemetryConfig metrics.PrometheusConfig `json:"telemetryConfig,omitempty"`
 }
 
 const (
-	workflowResyncPeriod = 20 * time.Minute
-	podResyncPeriod      = 30 * time.Minute
+	workflowResyncPeriod        = 20 * time.Minute
+	workflowMetricsResyncPeriod = 1 * time.Minute
+	podResyncPeriod             = 30 * time.Minute
 )
 
 // ArtifactRepository represents a artifact repository in which a controller will store its artifacts
@@ -121,6 +128,24 @@ func NewWorkflowController(restConfig *rest.Config, kubeclientset kubernetes.Int
 	return &wfc
 }
 
+// MetricsServer starts a prometheus metrics server if enabled in the configmap
+func (wfc *WorkflowController) MetricsServer(ctx context.Context) {
+	if wfc.Config.MetricsConfig.Enabled {
+		informer := wfc.newWorkflowInformer(workflowMetricsResyncPeriod, wfc.tweakWorkflowMetricslist)
+		go informer.Run(ctx.Done())
+		registry := metrics.NewWorkflowRegistry(informer)
+		metrics.RunServer(ctx, wfc.Config.MetricsConfig, registry)
+	}
+}
+
+// TelemetryServer starts a prometheus telemetry server if enabled in the configmap
+func (wfc *WorkflowController) TelemetryServer(ctx context.Context) {
+	if wfc.Config.TelemetryConfig.Enabled {
+		registry := metrics.NewTelemetryRegistry()
+		metrics.RunServer(ctx, wfc.Config.TelemetryConfig, registry)
+	}
+}
+
 // Run starts an Workflow resource controller
 func (wfc *WorkflowController) Run(ctx context.Context, wfWorkers, podWorkers int) {
 	defer wfc.wfQueue.ShutDown()
@@ -134,8 +159,10 @@ func (wfc *WorkflowController) Run(ctx context.Context, wfWorkers, podWorkers in
 		return
 	}
 
-	wfc.wfInformer = wfc.newWorkflowInformer()
+	wfc.wfInformer = wfc.newWorkflowInformer(workflowResyncPeriod, wfc.tweakWorkflowlist)
+	wfc.addWorkflowInformerHandler()
 	wfc.podInformer = wfc.newPodInformer()
+
 	go wfc.wfInformer.Run(ctx.Done())
 	go wfc.podInformer.Run(ctx.Done())
 	go wfc.podLabeler(ctx.Done())
@@ -345,12 +372,19 @@ func (wfc *WorkflowController) tweakWorkflowlist(options *metav1.ListOptions) {
 	options.LabelSelector = labelSelector.String()
 }
 
+func (wfc *WorkflowController) tweakWorkflowMetricslist(options *metav1.ListOptions) {
+	options.FieldSelector = fields.Everything().String()
+
+	labelSelector := labels.NewSelector().Add(wfc.instanceIDRequirement())
+	options.LabelSelector = labelSelector.String()
+}
+
 // newWorkflowInformer returns the workflow informer used by the controller. This is actually
 // a custom built UnstructuredInformer which is in actuality returning unstructured.Unstructured
 // objects. We no longer return WorkflowInformer due to:
 // https://github.com/kubernetes/kubernetes/issues/57705
 // https://github.com/argoproj/argo/issues/632
-func (wfc *WorkflowController) newWorkflowInformer() cache.SharedIndexInformer {
+func (wfc *WorkflowController) newWorkflowInformer(resyncPeriod time.Duration, tweakListOptions internalinterfaces.TweakListOptionsFunc) cache.SharedIndexInformer {
 	dynClientPool := dynamic.NewDynamicClientPool(wfc.restConfig)
 	dclient, err := dynClientPool.ClientForGroupVersionKind(wfv1.SchemaGroupVersionKind)
 	if err != nil {
@@ -368,11 +402,15 @@ func (wfc *WorkflowController) newWorkflowInformer() cache.SharedIndexInformer {
 		resource,
 		dclient,
 		wfc.Config.Namespace,
-		workflowResyncPeriod,
+		resyncPeriod,
 		cache.Indexers{},
-		wfc.tweakWorkflowlist,
+		tweakListOptions,
 	)
-	informer.AddEventHandler(
+	return informer
+}
+
+func (wfc *WorkflowController) addWorkflowInformerHandler() {
+	wfc.wfInformer.AddEventHandler(
 		cache.ResourceEventHandlerFuncs{
 			AddFunc: func(obj interface{}) {
 				key, err := cache.MetaNamespaceKeyFunc(obj)
@@ -396,7 +434,6 @@ func (wfc *WorkflowController) newWorkflowInformer() cache.SharedIndexInformer {
 			},
 		},
 	)
-	return informer
 }
 
 func (wfc *WorkflowController) watchControllerConfigMap(ctx context.Context) (cache.Controller, error) {
diff --git a/workflow/metrics/collector.go b/workflow/metrics/collector.go
new file mode 100644
index 000000000000..b282103d1fb3
--- /dev/null
+++ b/workflow/metrics/collector.go
@@ -0,0 +1,155 @@
+package metrics
+
+import (
+	"os"
+	"strings"
+
+	wfv1 "github.com/argoproj/argo/pkg/apis/workflow/v1alpha1"
+	"github.com/prometheus/client_golang/prometheus"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/client-go/tools/cache"
+)
+
+var (
+	descWorkflowDefaultLabels = []string{"namespace", "name"}
+
+	descWorkflowInfo = prometheus.NewDesc(
+		"kube_wf_info",
+		"Information about workflow.",
+		append(descWorkflowDefaultLabels, "entrypoint", "service_account_name", "templates"),
+		nil,
+	)
+	descWorkflowStartedAt = prometheus.NewDesc(
+		"kube_wf_start_time",
+		"Start time in unix timestamp for a workflow.",
+		descWorkflowDefaultLabels,
+		nil,
+	)
+	descWorkflowFinishedAt = prometheus.NewDesc(
+		"kube_wf_completion_time",
+		"Completion time in unix timestamp for a workflow.",
+		descWorkflowDefaultLabels,
+		nil,
+	)
+	descWorkflowCreated = prometheus.NewDesc(
+		"kube_wf_created",
+		"Creation time in unix timestamp for a workflow.",
+		descWorkflowDefaultLabels,
+		nil,
+	)
+	descWorkflowStatusPhase = prometheus.NewDesc(
+		"kube_wf_status_phase",
+		"The workflow current phase.",
+		append(descWorkflowDefaultLabels, "phase"),
+		nil,
+	)
+)
+
+func boolFloat64(b bool) float64 {
+	if b {
+		return 1
+	}
+	return 0
+}
+
+type workflowLister func() ([]wfv1.Workflow, error)
+
+func (l workflowLister) List() ([]wfv1.Workflow, error) {
+	return l()
+}
+
+type wfStore interface {
+	List() (workflows []wfv1.Workflow, err error)
+}
+
+// workflowCollector collects metrics about all workflows in the cluster
+type workflowCollector struct {
+	store wfStore
+}
+
+// NewWorkflowRegistry creates a new prometheus registry that collects workflows
+func NewWorkflowRegistry(informer cache.SharedIndexInformer) *prometheus.Registry {
+	workflowLister := workflowLister(func() (workflows []wfv1.Workflow, err error) {
+		for _, m := range informer.GetStore().List() {
+			var wf wfv1.Workflow
+			err := runtime.DefaultUnstructuredConverter.FromUnstructured(m.(*unstructured.Unstructured).Object, &wf)
+			if err != nil {
+				return nil, err
+			}
+			workflows = append(workflows, wf)
+		}
+		return workflows, nil
+	})
+	registry := prometheus.NewRegistry()
+	registry.MustRegister(&workflowCollector{store: workflowLister})
+	return registry
+}
+
+// NewTelemetryRegistry creates a new prometheus registry that collects telemetry
+func NewTelemetryRegistry() *prometheus.Registry {
+	registry := prometheus.NewRegistry()
+	registry.MustRegister(prometheus.NewProcessCollector(os.Getpid(), ""))
+	registry.MustRegister(prometheus.NewGoCollector())
+	return registry
+}
+
+// Describe implements the prometheus.Collector interface
+func (wc *workflowCollector) Describe(ch chan<- *prometheus.Desc) {
+	ch <- descWorkflowInfo
+	ch <- descWorkflowStartedAt
+	ch <- descWorkflowFinishedAt
+	ch <- descWorkflowCreated
+	ch <- descWorkflowStatusPhase
+}
+
+// Collect implements the prometheus.Collector interface
+func (wc *workflowCollector) Collect(ch chan<- prometheus.Metric) {
+	workflows, err := wc.store.List()
+	if err != nil {
+		return
+	}
+	for _, wf := range workflows {
+		wc.collectWorkflow(ch, wf)
+	}
+}
+
+func (wc *workflowCollector) collectWorkflow(ch chan<- prometheus.Metric, wf wfv1.Workflow) {
+	addConstMetric := func(desc *prometheus.Desc, t prometheus.ValueType, v float64, lv ...string) {
+		lv = append([]string{wf.Namespace, wf.Name}, lv...)
+		ch <- prometheus.MustNewConstMetric(desc, t, v, lv...)
+	}
+	addGauge := func(desc *prometheus.Desc, v float64, lv ...string) {
+		addConstMetric(desc, prometheus.GaugeValue, v, lv...)
+	}
+	joinTemplates := func(spec []wfv1.Template) string {
+		var templates []string
+		for _, t := range spec {
+			templates = append(templates, t.Name)
+		}
+		return strings.Join(templates, ",")
+	}
+
+	addGauge(descWorkflowInfo, 1, wf.Spec.Entrypoint, wf.Spec.ServiceAccountName, joinTemplates(wf.Spec.Templates))
+
+	if phase := wf.Status.Phase; phase != "" {
+		addGauge(descWorkflowStatusPhase, boolFloat64(phase == wfv1.NodeRunning), string(wfv1.NodeRunning))
+		addGauge(descWorkflowStatusPhase, boolFloat64(phase == wfv1.NodeSucceeded), string(wfv1.NodeSucceeded))
+		addGauge(descWorkflowStatusPhase, boolFloat64(phase == wfv1.NodeSkipped), string(wfv1.NodeSkipped))
+		addGauge(descWorkflowStatusPhase, boolFloat64(phase == wfv1.NodeFailed), string(wfv1.NodeFailed))
+		addGauge(descWorkflowStatusPhase, boolFloat64(phase == wfv1.NodeError), string(wfv1.NodeError))
+	}
+
+	if !wf.CreationTimestamp.IsZero() {
+		addGauge(descWorkflowCreated, float64(wf.CreationTimestamp.Unix()))
+	}
+
+	if !wf.Status.StartedAt.IsZero() {
+		addGauge(descWorkflowStartedAt, float64(wf.Status.StartedAt.Unix()))
+	}
+
+	if !wf.Status.FinishedAt.IsZero() {
+		addGauge(descWorkflowFinishedAt, float64(wf.Status.FinishedAt.Unix()))
+	}
+
+}
diff --git a/workflow/metrics/server.go b/workflow/metrics/server.go
new file mode 100644
index 000000000000..65153e23a044
--- /dev/null
+++ b/workflow/metrics/server.go
@@ -0,0 +1,37 @@
+package metrics
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	log "github.com/sirupsen/logrus"
+)
+
+// PrometheusConfig defines a config for a metrics server
+type PrometheusConfig struct {
+	Enabled bool   `json:"enabled,omitempty"`
+	Path    string `json:"path,omitempty"`
+	Port    string `json:"port,omitempty"`
+}
+
+// RunServer starts a metrics server
+func RunServer(ctx context.Context, config PrometheusConfig, registry *prometheus.Registry) {
+	mux := http.NewServeMux()
+	mux.Handle(config.Path, promhttp.HandlerFor(registry, promhttp.HandlerOpts{}))
+	srv := &http.Server{Addr: config.Port, Handler: mux}
+
+	defer func() {
+		if cerr := srv.Close(); cerr != nil {
+			log.Fatalf("Encountered an '%s' error when tried to close the metrics server running on '%s'", cerr, config.Port)
+		}
+	}()
+
+	log.Infof("Starting prometheus metrics server at 0.0.0.0%s%s", config.Port, config.Path)
+	if err := srv.ListenAndServe(); err != nil {
+		panic(err)
+	}
+
+	<-ctx.Done()
+}