diff --git a/controller/controller.go b/controller/controller.go
index 679762447e45e..65e8f88040dfd 100644
--- a/controller/controller.go
+++ b/controller/controller.go
@@ -144,13 +144,21 @@ func (ctrl *ApplicationController) tryRefreshAppStatus(app *appv1.Application) (
 			Password: "",
 		}
 	}
+	overrides := make([]*appv1.ComponentParameterOverride, len(app.Spec.Source.ComponentParameterOverrides))
+	if app.Spec.Source.ComponentParameterOverrides != nil {
+		for i := range app.Spec.Source.ComponentParameterOverrides {
+			item := app.Spec.Source.ComponentParameterOverrides[i]
+			overrides[i] = &item
+		}
+	}
 	revision := app.Spec.Source.TargetRevision
 	manifestInfo, err := client.GenerateManifest(context.Background(), &repository.ManifestRequest{
-		Repo:        repo,
-		Revision:    revision,
-		Path:        app.Spec.Source.Path,
-		Environment: app.Spec.Source.Environment,
-		AppLabel:    app.Name,
+		Repo:                        repo,
+		Revision:                    revision,
+		Path:                        app.Spec.Source.Path,
+		Environment:                 app.Spec.Source.Environment,
+		AppLabel:                    app.Name,
+		ComponentParameterOverrides: overrides,
 	})
 	if err != nil {
 		log.Errorf("Failed to load application manifest %v", err)
diff --git a/pkg/apis/application/v1alpha1/generated.pb.go b/pkg/apis/application/v1alpha1/generated.pb.go
index 96657caa7eb75..430a974537e27 100644
--- a/pkg/apis/application/v1alpha1/generated.pb.go
+++ b/pkg/apis/application/v1alpha1/generated.pb.go
@@ -19,6 +19,7 @@
 		ClusterConfig
 		ClusterList
 		ComparisonResult
+		ComponentParameterOverride
 		DeploymentInfo
 		Repository
 		RepositoryList
@@ -95,25 +96,31 @@ func (m *ComparisonResult) Reset()                    { *m = ComparisonResult{}
 func (*ComparisonResult) ProtoMessage()               {}
 func (*ComparisonResult) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{10} }
 
+func (m *ComponentParameterOverride) Reset()      { *m = ComponentParameterOverride{} }
+func (*ComponentParameterOverride) ProtoMessage() {}
+func (*ComponentParameterOverride) Descriptor() ([]byte, []int) {
+	return fileDescriptorGenerated, []int{11}
+}
+
 func (m *DeploymentInfo) Reset()                    { *m = DeploymentInfo{} }
 func (*DeploymentInfo) ProtoMessage()               {}
-func (*DeploymentInfo) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{11} }
+func (*DeploymentInfo) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{12} }
 
 func (m *Repository) Reset()                    { *m = Repository{} }
 func (*Repository) ProtoMessage()               {}
-func (*Repository) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{12} }
+func (*Repository) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{13} }
 
 func (m *RepositoryList) Reset()                    { *m = RepositoryList{} }
 func (*RepositoryList) ProtoMessage()               {}
-func (*RepositoryList) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{13} }
+func (*RepositoryList) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{14} }
 
 func (m *ResourceState) Reset()                    { *m = ResourceState{} }
 func (*ResourceState) ProtoMessage()               {}
-func (*ResourceState) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{14} }
+func (*ResourceState) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{15} }
 
 func (m *TLSClientConfig) Reset()                    { *m = TLSClientConfig{} }
 func (*TLSClientConfig) ProtoMessage()               {}
-func (*TLSClientConfig) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{15} }
+func (*TLSClientConfig) Descriptor() ([]byte, []int) { return fileDescriptorGenerated, []int{16} }
 
 func init() {
 	proto.RegisterType((*Application)(nil), "github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.Application")
@@ -127,6 +134,7 @@ func init() {
 	proto.RegisterType((*ClusterConfig)(nil), "github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.ClusterConfig")
 	proto.RegisterType((*ClusterList)(nil), "github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.ClusterList")
 	proto.RegisterType((*ComparisonResult)(nil), "github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.ComparisonResult")
+	proto.RegisterType((*ComponentParameterOverride)(nil), "github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.ComponentParameterOverride")
 	proto.RegisterType((*DeploymentInfo)(nil), "github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.DeploymentInfo")
 	proto.RegisterType((*Repository)(nil), "github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.Repository")
 	proto.RegisterType((*RepositoryList)(nil), "github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.RepositoryList")
@@ -270,6 +278,18 @@ func (m *ApplicationSource) MarshalTo(dAtA []byte) (int, error) {
 	i++
 	i = encodeVarintGenerated(dAtA, i, uint64(len(m.TargetRevision)))
 	i += copy(dAtA[i:], m.TargetRevision)
+	if len(m.ComponentParameterOverrides) > 0 {
+		for _, msg := range m.ComponentParameterOverrides {
+			dAtA[i] = 0x2a
+			i++
+			i = encodeVarintGenerated(dAtA, i, uint64(msg.Size()))
+			n, err := msg.MarshalTo(dAtA[i:])
+			if err != nil {
+				return 0, err
+			}
+			i += n
+		}
+	}
 	return i, nil
 }
 
@@ -545,6 +565,36 @@ func (m *ComparisonResult) MarshalTo(dAtA []byte) (int, error) {
 	return i, nil
 }
 
+func (m *ComponentParameterOverride) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalTo(dAtA)
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *ComponentParameterOverride) MarshalTo(dAtA []byte) (int, error) {
+	var i int
+	_ = i
+	var l int
+	_ = l
+	dAtA[i] = 0xa
+	i++
+	i = encodeVarintGenerated(dAtA, i, uint64(len(m.Component)))
+	i += copy(dAtA[i:], m.Component)
+	dAtA[i] = 0x12
+	i++
+	i = encodeVarintGenerated(dAtA, i, uint64(len(m.Name)))
+	i += copy(dAtA[i:], m.Name)
+	dAtA[i] = 0x1a
+	i++
+	i = encodeVarintGenerated(dAtA, i, uint64(len(m.Value)))
+	i += copy(dAtA[i:], m.Value)
+	return i, nil
+}
+
 func (m *DeploymentInfo) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
@@ -791,6 +841,12 @@ func (m *ApplicationSource) Size() (n int) {
 	n += 1 + l + sovGenerated(uint64(l))
 	l = len(m.TargetRevision)
 	n += 1 + l + sovGenerated(uint64(l))
+	if len(m.ComponentParameterOverrides) > 0 {
+		for _, e := range m.ComponentParameterOverrides {
+			l = e.Size()
+			n += 1 + l + sovGenerated(uint64(l))
+		}
+	}
 	return n
 }
 
@@ -890,6 +946,18 @@ func (m *ComparisonResult) Size() (n int) {
 	return n
 }
 
+func (m *ComponentParameterOverride) Size() (n int) {
+	var l int
+	_ = l
+	l = len(m.Component)
+	n += 1 + l + sovGenerated(uint64(l))
+	l = len(m.Name)
+	n += 1 + l + sovGenerated(uint64(l))
+	l = len(m.Value)
+	n += 1 + l + sovGenerated(uint64(l))
+	return n
+}
+
 func (m *DeploymentInfo) Size() (n int) {
 	var l int
 	_ = l
@@ -1021,6 +1089,7 @@ func (this *ApplicationSource) String() string {
 		`Path:` + fmt.Sprintf("%v", this.Path) + `,`,
 		`Environment:` + fmt.Sprintf("%v", this.Environment) + `,`,
 		`TargetRevision:` + fmt.Sprintf("%v", this.TargetRevision) + `,`,
+		`ComponentParameterOverrides:` + strings.Replace(strings.Replace(fmt.Sprintf("%v", this.ComponentParameterOverrides), "ComponentParameterOverride", "ComponentParameterOverride", 1), `&`, ``, 1) + `,`,
 		`}`,
 	}, "")
 	return s
@@ -1110,6 +1179,18 @@ func (this *ComparisonResult) String() string {
 	}, "")
 	return s
 }
+func (this *ComponentParameterOverride) String() string {
+	if this == nil {
+		return "nil"
+	}
+	s := strings.Join([]string{`&ComponentParameterOverride{`,
+		`Component:` + fmt.Sprintf("%v", this.Component) + `,`,
+		`Name:` + fmt.Sprintf("%v", this.Name) + `,`,
+		`Value:` + fmt.Sprintf("%v", this.Value) + `,`,
+		`}`,
+	}, "")
+	return s
+}
 func (this *DeploymentInfo) String() string {
 	if this == nil {
 		return "nil"
@@ -1692,6 +1773,37 @@ func (m *ApplicationSource) Unmarshal(dAtA []byte) error {
 			}
 			m.TargetRevision = string(dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
+		case 5:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ComponentParameterOverrides", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= (int(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + msglen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.ComponentParameterOverrides = append(m.ComponentParameterOverrides, ComponentParameterOverride{})
+			if err := m.ComponentParameterOverrides[len(m.ComponentParameterOverrides)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipGenerated(dAtA[iNdEx:])
@@ -2718,6 +2830,143 @@ func (m *ComparisonResult) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *ComponentParameterOverride) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowGenerated
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= (uint64(b) & 0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: ComponentParameterOverride: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: ComponentParameterOverride: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Component", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Component = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Name", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Name = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 3:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Value", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowGenerated
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= (uint64(b) & 0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Value = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipGenerated(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthGenerated
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func (m *DeploymentInfo) Unmarshal(dAtA []byte) error {
 	l := len(dAtA)
 	iNdEx := 0
@@ -3602,91 +3851,96 @@ func init() {
 }
 
 var fileDescriptorGenerated = []byte{
-	// 1363 bytes of a gzipped FileDescriptorProto
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+	0x54, 0xef, 0x52, 0x9a, 0xd6, 0xfb, 0xd2, 0x88, 0x63, 0x9f, 0xfd, 0x9b, 0x05, 0x8b, 0xf9, 0xd6,
+	0x85, 0x6e, 0x42, 0x29, 0x92, 0xf9, 0xf1, 0x8a, 0x35, 0xf1, 0x13, 0x2c, 0x4f, 0xed, 0xa8, 0x75,
+	0xf3, 0xf5, 0x40, 0xb0, 0x41, 0x76, 0x6a, 0x62, 0x23, 0xd6, 0x41, 0x57, 0xce, 0x41, 0xd9, 0x80,
+	0xa1, 0x65, 0x98, 0x6e, 0xd3, 0x41, 0x5c, 0x12, 0x2c, 0x3f, 0xd1, 0xd3, 0xc9, 0xba, 0xd4, 0xd2,
+	0xf5, 0x42, 0xce, 0x17, 0xce, 0x5a, 0xf6, 0xaf, 0x16, 0x80, 0x7c, 0x00, 0x73, 0x5f, 0x84, 0x6c,
+	0x20, 0x4b, 0x24, 0x5f, 0xc1, 0xba, 0x9c, 0x69, 0x89, 0x24, 0x02, 0x2b, 0x4f, 0x4e, 0xbb, 0x0b,
+	0x8f, 0xa5, 0xdd, 0xd3, 0x8f, 0xd4, 0xee, 0x37, 0x61, 0x81, 0xf3, 0xd6, 0x36, 0xf3, 0xfb, 0x44,
+	0xd0, 0x4d, 0x3a, 0xd0, 0x37, 0xe0, 0x88, 0x9e, 0xb2, 0xb0, 0xb3, 0x73, 0x29, 0x73, 0xe2, 0x3c,
+	0xd6, 0xfe, 0xd3, 0x82, 0xc5, 0x6c, 0x25, 0x4f, 0x40, 0x34, 0xaf, 0xe7, 0x45, 0x73, 0x7d, 0xa2,
+	0xab, 0x93, 0xe4, 0x3d, 0x46, 0x37, 0x7f, 0xb4, 0x60, 0x21, 0x77, 0xbf, 0x64, 0x9f, 0x8b, 0xff,
+	0x0e, 0xd4, 0x50, 0x6f, 0x58, 0xda, 0xe7, 0xea, 0x99, 0x0b, 0x9b, 0x38, 0x79, 0x69, 0x3a, 0x7e,
+	0x3f, 0xe6, 0x18, 0xfe, 0x59, 0xdc, 0x4a, 0x1c, 0x38, 0xc3, 0x18, 0x02, 0x33, 0xfd, 0xb8, 0x02,
+	0x63, 0xff, 0x63, 0xc1, 0x70, 0xa7, 0x93, 0x27, 0xc2, 0x0f, 0x38, 0xf5, 0x7a, 0x2c, 0x4e, 0x7a,
+	0x2e, 0xab, 0xf1, 0x86, 0xb6, 0xe3, 0x14, 0x81, 0xce, 0x00, 0xc4, 0xca, 0x78, 0x39, 0x3b, 0x6f,
+	0xa9, 0xd6, 0xee, 0xa4, 0x1e, 0x6c, 0xa0, 0xd0, 0x49, 0x98, 0xf3, 0x28, 0x13, 0x17, 0xe5, 0xae,
+	0xcb, 0x9c, 0x0f, 0xb9, 0x87, 0x24, 0xfb, 0x9a, 0xb6, 0xe1, 0xd4, 0x8b, 0x9e, 0x85, 0xd9, 0x36,
+	0x1d, 0x28, 0x60, 0x51, 0x01, 0xcb, 0xf2, 0x7f, 0x70, 0x33, 0x36, 0xe1, 0xc4, 0x87, 0x6c, 0x28,
+	0x79, 0x44, 0xa1, 0x66, 0x14, 0x0a, 0xd4, 0x23, 0xe7, 0x82, 0x02, 0x69, 0x8f, 0xeb, 0xdc, 0xbe,
+	0x5f, 0x9d, 0xba, 0x73, 0xbf, 0x3a, 0x75, 0xf7, 0x7e, 0x75, 0xea, 0xd6, 0x5e, 0xd5, 0xba, 0xbd,
+	0x57, 0xb5, 0xee, 0xec, 0x55, 0xad, 0xbb, 0x7b, 0x55, 0xeb, 0xef, 0xbd, 0xaa, 0xf5, 0xf5, 0x83,
+	0xea, 0xd4, 0x87, 0x73, 0xc9, 0x8e, 0xff, 0x1b, 0x00, 0x00, 0xff, 0xff, 0xe6, 0x77, 0xf0, 0xfc,
+	0xd6, 0x12, 0x00, 0x00,
 }
diff --git a/pkg/apis/application/v1alpha1/generated.proto b/pkg/apis/application/v1alpha1/generated.proto
index 1722ad706f4a9..9ed1818896512 100644
--- a/pkg/apis/application/v1alpha1/generated.proto
+++ b/pkg/apis/application/v1alpha1/generated.proto
@@ -56,6 +56,9 @@ message ApplicationSource {
   // TargetRevision defines the commit, tag, or branch in which to sync the application to.
   // If omitted, will sync to HEAD
   optional string targetRevision = 4;
+
+  // Environment parameter override values
+  repeated ComponentParameterOverride componentParameterOverrides = 5;
 }
 
 // ApplicationSpec represents desired application state. Contains link to repository with application definition and additional parameters link definition revision.
@@ -140,6 +143,15 @@ message ComparisonResult {
   optional string error = 7;
 }
 
+// ComponentParameterOverride defines overriding value for component parameter
+message ComponentParameterOverride {
+  optional string component = 1;
+
+  optional string name = 2;
+
+  optional string value = 3;
+}
+
 // DeploymentInfo contains information relevant to an application deployment
 message DeploymentInfo {
   map<string, string> params = 1;
diff --git a/pkg/apis/application/v1alpha1/types.go b/pkg/apis/application/v1alpha1/types.go
index f1f564eba9389..2b03fceecfe0c 100644
--- a/pkg/apis/application/v1alpha1/types.go
+++ b/pkg/apis/application/v1alpha1/types.go
@@ -56,6 +56,13 @@ type ApplicationSpec struct {
 	Destination *ApplicationDestination `json:"destination,omitempty" protobuf:"bytes,2,opt,name=destination"`
 }
 
+// ComponentParameterOverride defines overriding value for component parameter
+type ComponentParameterOverride struct {
+	Component string `json:"component" protobuf:"bytes,1,opt,name=component"`
+	Name      string `json:"name" protobuf:"bytes,2,opt,name=name"`
+	Value     string `json:"value" protobuf:"bytes,3,opt,name=value"`
+}
+
 // ApplicationSource contains information about github repository, path within repository and target application environment.
 type ApplicationSource struct {
 	// RepoURL is the repository URL containing the ksonnet application.
@@ -67,6 +74,8 @@ type ApplicationSource struct {
 	// TargetRevision defines the commit, tag, or branch in which to sync the application to.
 	// If omitted, will sync to HEAD
 	TargetRevision string `json:"targetRevision,omitempty" protobuf:"bytes,4,opt,name=targetRevision"`
+	// Environment parameter override values
+	ComponentParameterOverrides []ComponentParameterOverride `json:"componentParameterOverrides,omitempty" protobuf:"bytes,5,opt,name=componentParameterOverrides"`
 }
 
 // ApplicationDestination contains deployment destination information
diff --git a/pkg/apis/application/v1alpha1/zz_generated.deepcopy.go b/pkg/apis/application/v1alpha1/zz_generated.deepcopy.go
index 3fc80b637ea18..cfe21fbdf39af 100644
--- a/pkg/apis/application/v1alpha1/zz_generated.deepcopy.go
+++ b/pkg/apis/application/v1alpha1/zz_generated.deepcopy.go
@@ -88,6 +88,11 @@ func (in *ApplicationList) DeepCopyObject() runtime.Object {
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *ApplicationSource) DeepCopyInto(out *ApplicationSource) {
 	*out = *in
+	if in.ComponentParameterOverrides != nil {
+		in, out := &in.ComponentParameterOverrides, &out.ComponentParameterOverrides
+		*out = make([]ComponentParameterOverride, len(*in))
+		copy(*out, *in)
+	}
 	return
 }
 
@@ -104,7 +109,7 @@ func (in *ApplicationSource) DeepCopy() *ApplicationSource {
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *ApplicationSpec) DeepCopyInto(out *ApplicationSpec) {
 	*out = *in
-	out.Source = in.Source
+	in.Source.DeepCopyInto(&out.Source)
 	if in.Destination != nil {
 		in, out := &in.Destination, &out.Destination
 		if *in == nil {
@@ -224,7 +229,7 @@ func (in *ClusterList) DeepCopy() *ClusterList {
 func (in *ComparisonResult) DeepCopyInto(out *ComparisonResult) {
 	*out = *in
 	in.ComparedAt.DeepCopyInto(&out.ComparedAt)
-	out.ComparedTo = in.ComparedTo
+	in.ComparedTo.DeepCopyInto(&out.ComparedTo)
 	if in.Resources != nil {
 		in, out := &in.Resources, &out.Resources
 		*out = make([]ResourceState, len(*in))
@@ -243,6 +248,22 @@ func (in *ComparisonResult) DeepCopy() *ComparisonResult {
 	return out
 }
 
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *ComponentParameterOverride) DeepCopyInto(out *ComponentParameterOverride) {
+	*out = *in
+	return
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new ComponentParameterOverride.
+func (in *ComponentParameterOverride) DeepCopy() *ComponentParameterOverride {
+	if in == nil {
+		return nil
+	}
+	out := new(ComponentParameterOverride)
+	in.DeepCopyInto(out)
+	return out
+}
+
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *DeploymentInfo) DeepCopyInto(out *DeploymentInfo) {
 	*out = *in
diff --git a/reposerver/repository/repository.go b/reposerver/repository/repository.go
index 741ff0091fe4f..e305a0f36064e 100644
--- a/reposerver/repository/repository.go
+++ b/reposerver/repository/repository.go
@@ -3,9 +3,7 @@ package repository
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"os"
-	"os/exec"
 	"path"
 	"strings"
 
@@ -36,29 +34,16 @@ func NewService(namespace string, kubeClient kubernetes.Interface, gitClient git
 	}
 }
 
-func (s *Service) createTempRepo(appRepoPath string, appPath string, sourceEnv string, files map[string]string) (string, error) {
-	tmpRepoPath, err := ioutil.TempDir("", "")
-	if err != nil {
-		return "", err
-	}
-	_, err = exec.Command("cp", "-r", appRepoPath, tmpRepoPath).Output()
-	if err != nil {
-		return "", err
-	}
-	tmpRepoPath = path.Join(tmpRepoPath, path.Base(appRepoPath))
-	for file, content := range files {
-		err = ioutil.WriteFile(path.Join(tmpRepoPath, appPath, "environments", sourceEnv, file), []byte(content), 0644)
-		if err != nil {
-			return "", err
-		}
-	}
-	return tmpRepoPath, nil
-}
-
 func (s *Service) GenerateManifest(c context.Context, q *ManifestRequest) (*ManifestResponse, error) {
 	appRepoPath := path.Join(os.TempDir(), strings.Replace(q.Repo.Repo, "/", "_", -1))
 	s.repoLock.Lock(appRepoPath)
-	defer s.repoLock.Unlock(appRepoPath)
+	defer func() {
+		err := s.gitClient.Reset(appRepoPath)
+		if err != nil {
+			log.Warn(err)
+		}
+		s.repoLock.Unlock(appRepoPath)
+	}()
 
 	err := s.gitClient.CloneOrFetch(q.Repo.Repo, q.Repo.Username, q.Repo.Password, q.Repo.SSHPrivateKey, appRepoPath)
 	if err != nil {
@@ -70,23 +55,20 @@ func (s *Service) GenerateManifest(c context.Context, q *ManifestRequest) (*Mani
 		return nil, err
 	}
 	appPath := path.Join(appRepoPath, q.Path)
-	if q.InputFiles != nil && len(q.InputFiles) > 0 {
-		tempRepoPath, err := s.createTempRepo(appRepoPath, q.Path, q.Environment, q.InputFiles)
-		if err != nil {
-			return nil, err
-		}
-		appPath = path.Join(tempRepoPath, q.Path)
-		defer func() {
-			err := os.RemoveAll(tempRepoPath)
-			if err != nil {
-				log.Warningf("Unable to cleanup temp directory: %v", err)
-			}
-		}()
-	}
 	ksApp, err := ksutil.NewKsonnetApp(appPath)
 	if err != nil {
 		return nil, fmt.Errorf("unable to load application from %s: %v", appPath, err)
 	}
+
+	if q.ComponentParameterOverrides != nil {
+		for _, override := range q.ComponentParameterOverrides {
+			err = ksApp.SetComponentParams(q.Environment, override.Component, override.Name, override.Value)
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+
 	appSpec := ksApp.App()
 	env, err := appSpec.Environment(q.Environment)
 	if err != nil {
diff --git a/reposerver/repository/repository.pb.go b/reposerver/repository/repository.pb.go
index 3ba7018220c47..a672e8646fca2 100644
--- a/reposerver/repository/repository.pb.go
+++ b/reposerver/repository/repository.pb.go
@@ -41,12 +41,12 @@ const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
 
 // ManifestRequest is a query for manifest generation.
 type ManifestRequest struct {
-	Repo        *github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Repository `protobuf:"bytes,1,opt,name=repo" json:"repo,omitempty"`
-	Revision    string                                                                `protobuf:"bytes,2,opt,name=revision" json:"revision,omitempty"`
-	Path        string                                                                `protobuf:"bytes,3,opt,name=path" json:"path,omitempty"`
-	Environment string                                                                `protobuf:"bytes,4,opt,name=environment" json:"environment,omitempty"`
-	AppLabel    string                                                                `protobuf:"bytes,5,opt,name=appLabel" json:"appLabel,omitempty"`
-	InputFiles  map[string]string                                                     `protobuf:"bytes,6,rep,name=inputFiles" json:"inputFiles,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	Repo                        *github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Repository                   `protobuf:"bytes,1,opt,name=repo" json:"repo,omitempty"`
+	Revision                    string                                                                                  `protobuf:"bytes,2,opt,name=revision" json:"revision,omitempty"`
+	Path                        string                                                                                  `protobuf:"bytes,3,opt,name=path" json:"path,omitempty"`
+	Environment                 string                                                                                  `protobuf:"bytes,4,opt,name=environment" json:"environment,omitempty"`
+	AppLabel                    string                                                                                  `protobuf:"bytes,5,opt,name=appLabel" json:"appLabel,omitempty"`
+	ComponentParameterOverrides []*github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.ComponentParameterOverride `protobuf:"bytes,6,rep,name=componentParameterOverrides" json:"componentParameterOverrides,omitempty"`
 }
 
 func (m *ManifestRequest) Reset()                    { *m = ManifestRequest{} }
@@ -89,9 +89,9 @@ func (m *ManifestRequest) GetAppLabel() string {
 	return ""
 }
 
-func (m *ManifestRequest) GetInputFiles() map[string]string {
+func (m *ManifestRequest) GetComponentParameterOverrides() []*github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.ComponentParameterOverride {
 	if m != nil {
-		return m.InputFiles
+		return m.ComponentParameterOverrides
 	}
 	return nil
 }
@@ -303,38 +303,38 @@ var _RepositoryService_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("reposerver/repository/repository.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
-	// 527 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xd4, 0x54, 0xd1, 0x8a, 0xd3, 0x4c,
-	0x14, 0xde, 0xb4, 0xdd, 0xf2, 0xf7, 0xf4, 0x87, 0xed, 0x0e, 0x8b, 0x84, 0x58, 0xa1, 0xe4, 0x42,
-	0x2a, 0xe2, 0x84, 0x76, 0x6f, 0x56, 0xc1, 0x0b, 0x85, 0xba, 0x2c, 0xba, 0x28, 0xf1, 0x4a, 0x6f,
-	0x64, 0x9a, 0x9e, 0x4d, 0xc7, 0xa6, 0x33, 0xe3, 0xcc, 0x34, 0xd0, 0xc7, 0xf0, 0x59, 0x7c, 0x00,
-	0xdf, 0xc6, 0xe7, 0x90, 0x4c, 0xd2, 0x26, 0xec, 0xae, 0x05, 0x2f, 0xbd, 0x3b, 0xe7, 0x3b, 0x67,
-	0xbe, 0x2f, 0xdf, 0x39, 0x93, 0x81, 0xc7, 0x1a, 0x95, 0x34, 0xa8, 0x73, 0xd4, 0x91, 0x0b, 0xb9,
-	0x95, 0x7a, 0xdb, 0x08, 0xa9, 0xd2, 0xd2, 0x4a, 0x02, 0x35, 0x12, 0x9c, 0xa5, 0x32, 0x95, 0x0e,
-	0x8e, 0x8a, 0xa8, 0xec, 0x08, 0x86, 0xa9, 0x94, 0x69, 0x86, 0x11, 0x53, 0x3c, 0x62, 0x42, 0x48,
-	0xcb, 0x2c, 0x97, 0xc2, 0x54, 0xd5, 0x70, 0x75, 0x61, 0x28, 0x97, 0xae, 0x9a, 0x48, 0x8d, 0x51,
-	0x3e, 0x89, 0x52, 0x14, 0xa8, 0x99, 0xc5, 0x45, 0xd5, 0x73, 0x95, 0x72, 0xbb, 0xdc, 0xcc, 0x69,
-	0x22, 0xd7, 0x11, 0xd3, 0x4e, 0xe2, 0xab, 0x0b, 0x9e, 0x25, 0x8b, 0x48, 0xad, 0xd2, 0xe2, 0xb0,
-	0x89, 0x98, 0x52, 0x19, 0x4f, 0x1c, 0x79, 0x94, 0x4f, 0x58, 0xa6, 0x96, 0xec, 0x0e, 0x55, 0xf8,
-	0xab, 0x05, 0x27, 0xd7, 0x4c, 0xf0, 0x1b, 0x34, 0x36, 0xc6, 0x6f, 0x1b, 0x34, 0x96, 0x7c, 0x82,
-	0x4e, 0x61, 0xc2, 0xf7, 0x46, 0xde, 0xb8, 0x3f, 0x9d, 0xd1, 0x5a, 0x8d, 0xee, 0xd4, 0x5c, 0xf0,
-	0x25, 0x59, 0x50, 0xb5, 0x4a, 0x69, 0xa1, 0x46, 0x1b, 0x6a, 0x74, 0xa7, 0x46, 0xe3, 0xfd, 0x2c,
-	0x62, 0x47, 0x49, 0x02, 0xf8, 0x4f, 0x63, 0xce, 0x0d, 0x97, 0xc2, 0x6f, 0x8d, 0xbc, 0x71, 0x2f,
-	0xde, 0xe7, 0x84, 0x40, 0x47, 0x31, 0xbb, 0xf4, 0xdb, 0x0e, 0x77, 0x31, 0x19, 0x41, 0x1f, 0x45,
-	0xce, 0xb5, 0x14, 0x6b, 0x14, 0xd6, 0xef, 0xb8, 0x52, 0x13, 0x2a, 0x18, 0x99, 0x52, 0xef, 0xd8,
-	0x1c, 0x33, 0xff, 0xb8, 0x64, 0xdc, 0xe5, 0xe4, 0x2d, 0x00, 0x17, 0x6a, 0x63, 0xdf, 0xf0, 0x0c,
-	0x8d, 0xdf, 0x1d, 0xb5, 0xc7, 0xfd, 0xe9, 0x53, 0xda, 0x58, 0xd9, 0x2d, 0xe7, 0xf4, 0x6a, 0xdf,
-	0x3d, 0x13, 0x56, 0x6f, 0xe3, 0xc6, 0xf1, 0xe0, 0x25, 0x9c, 0xdc, 0x2a, 0x93, 0x01, 0xb4, 0x57,
-	0xb8, 0x75, 0x73, 0xea, 0xc5, 0x45, 0x48, 0xce, 0xe0, 0x38, 0x67, 0xd9, 0x06, 0x2b, 0x73, 0x65,
-	0xf2, 0xa2, 0x75, 0xe1, 0x85, 0x37, 0x30, 0xa8, 0xd5, 0x8c, 0x92, 0xc2, 0x20, 0x19, 0x42, 0x6f,
-	0x5d, 0x61, 0xc6, 0xf7, 0x46, 0xed, 0x71, 0x2f, 0xae, 0x81, 0xa2, 0x2a, 0xd8, 0x1a, 0x8d, 0x62,
-	0xc9, 0x8e, 0xaf, 0x06, 0xc8, 0x03, 0xe8, 0x96, 0xb7, 0xb1, 0x9a, 0x57, 0x95, 0x85, 0x3f, 0x3d,
-	0x18, 0xcc, 0x44, 0xfe, 0x81, 0x69, 0xb6, 0x36, 0xff, 0xe2, 0x46, 0xc3, 0xef, 0x1e, 0x9c, 0x36,
-	0x1c, 0x54, 0xb3, 0x7a, 0x05, 0x5d, 0xe5, 0x10, 0x37, 0xa8, 0xfe, 0xf4, 0x49, 0x73, 0x8f, 0x77,
-	0xda, 0x69, 0x99, 0x96, 0x5b, 0xac, 0x0e, 0x06, 0xcf, 0xa1, 0xdf, 0x80, 0xff, 0x66, 0x7b, 0xd3,
-	0x1f, 0x1e, 0x9c, 0xd6, 0xd6, 0x3f, 0xa2, 0xce, 0x79, 0x82, 0xe4, 0x3d, 0x0c, 0x2e, 0xab, 0xff,
-	0x69, 0xb7, 0x5b, 0xf2, 0xf0, 0xc0, 0xfd, 0x0a, 0x86, 0xf7, 0x17, 0xcb, 0x6f, 0x0e, 0x8f, 0xc8,
-	0x35, 0xfc, 0x7f, 0x89, 0x76, 0xef, 0x86, 0x0c, 0xff, 0x60, 0xb2, 0x64, 0x7b, 0x74, 0x70, 0x04,
-	0xe1, 0xd1, 0xeb, 0xf3, 0xcf, 0x93, 0x43, 0x2f, 0xc5, 0xbd, 0x2f, 0xda, 0xbc, 0xeb, 0x1e, 0x86,
-	0xf3, 0xdf, 0x01, 0x00, 0x00, 0xff, 0xff, 0x6a, 0xc2, 0xcc, 0xf4, 0xf1, 0x04, 0x00, 0x00,
+	// 528 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xd4, 0x54, 0x41, 0x8e, 0xd3, 0x30,
+	0x14, 0x9d, 0xb4, 0x9d, 0x8a, 0xfe, 0x22, 0xd1, 0xb1, 0x46, 0x28, 0xea, 0x14, 0xa9, 0xca, 0x02,
+	0x95, 0x05, 0x8e, 0xda, 0xd9, 0x0c, 0xec, 0x00, 0x55, 0x23, 0x24, 0x46, 0x83, 0x82, 0x58, 0xc0,
+	0x06, 0xb9, 0xe9, 0x9f, 0xd4, 0xb4, 0xb1, 0x8d, 0xed, 0x46, 0xea, 0x31, 0x58, 0x71, 0x10, 0x0e,
+	0xc0, 0xa5, 0x38, 0x00, 0x8a, 0x93, 0x34, 0x11, 0x33, 0xd3, 0x0d, 0x2b, 0x76, 0xef, 0xbf, 0xef,
+	0xbc, 0xe7, 0xff, 0x1c, 0x1b, 0x9e, 0x6a, 0x54, 0xd2, 0xa0, 0xce, 0x50, 0x87, 0x0e, 0x72, 0x2b,
+	0xf5, 0xae, 0x01, 0xa9, 0xd2, 0xd2, 0x4a, 0x02, 0x35, 0x33, 0x3c, 0x4d, 0x64, 0x22, 0x1d, 0x1d,
+	0xe6, 0xa8, 0x58, 0x31, 0x1c, 0x25, 0x52, 0x26, 0x1b, 0x0c, 0x99, 0xe2, 0x21, 0x13, 0x42, 0x5a,
+	0x66, 0xb9, 0x14, 0xa6, 0xec, 0x06, 0xeb, 0x0b, 0x43, 0xb9, 0x74, 0xdd, 0x58, 0x6a, 0x0c, 0xb3,
+	0x69, 0x98, 0xa0, 0x40, 0xcd, 0x2c, 0x2e, 0xcb, 0x35, 0x6f, 0x13, 0x6e, 0x57, 0xdb, 0x05, 0x8d,
+	0x65, 0x1a, 0x32, 0xed, 0x2c, 0xbe, 0x3a, 0xf0, 0x3c, 0x5e, 0x86, 0x6a, 0x9d, 0xe4, 0x1f, 0x9b,
+	0x90, 0x29, 0xb5, 0xe1, 0xb1, 0x13, 0x0f, 0xb3, 0x29, 0xdb, 0xa8, 0x15, 0xbb, 0x25, 0x15, 0xfc,
+	0x6e, 0xc1, 0xa3, 0x2b, 0x26, 0xf8, 0x0d, 0x1a, 0x1b, 0xe1, 0xb7, 0x2d, 0x1a, 0x4b, 0x3e, 0x41,
+	0x27, 0x1f, 0xc2, 0xf7, 0xc6, 0xde, 0xa4, 0x3f, 0x9b, 0xd3, 0xda, 0x8d, 0x56, 0x6e, 0x0e, 0x7c,
+	0x89, 0x97, 0x54, 0xad, 0x13, 0x9a, 0xbb, 0xd1, 0x86, 0x1b, 0xad, 0xdc, 0x68, 0xb4, 0xcf, 0x22,
+	0x72, 0x92, 0x64, 0x08, 0x0f, 0x34, 0x66, 0xdc, 0x70, 0x29, 0xfc, 0xd6, 0xd8, 0x9b, 0xf4, 0xa2,
+	0x7d, 0x4d, 0x08, 0x74, 0x14, 0xb3, 0x2b, 0xbf, 0xed, 0x78, 0x87, 0xc9, 0x18, 0xfa, 0x28, 0x32,
+	0xae, 0xa5, 0x48, 0x51, 0x58, 0xbf, 0xe3, 0x5a, 0x4d, 0x2a, 0x57, 0x64, 0x4a, 0xbd, 0x63, 0x0b,
+	0xdc, 0xf8, 0xc7, 0x85, 0x62, 0x55, 0x93, 0x1f, 0x1e, 0x9c, 0xc5, 0x32, 0x55, 0x52, 0xa0, 0xb0,
+	0xef, 0x99, 0x66, 0x29, 0x5a, 0xd4, 0xd7, 0x19, 0x6a, 0xcd, 0x97, 0x68, 0xfc, 0xee, 0xb8, 0x3d,
+	0xe9, 0xcf, 0x3e, 0xfe, 0xc3, 0x80, 0x6f, 0xee, 0x55, 0x8f, 0x0e, 0x39, 0x07, 0x37, 0x30, 0xa8,
+	0x53, 0x37, 0x4a, 0x0a, 0x83, 0x64, 0x04, 0xbd, 0xb4, 0xe4, 0x8c, 0xef, 0x8d, 0xdb, 0x93, 0x5e,
+	0x54, 0x13, 0x79, 0x57, 0xb0, 0x14, 0x8d, 0x62, 0x31, 0x96, 0xd1, 0xd5, 0x04, 0x79, 0x0c, 0xdd,
+	0xe2, 0xdf, 0x2c, 0xd3, 0x2b, 0xab, 0xe0, 0x97, 0x07, 0x83, 0xb9, 0xc8, 0xdc, 0x0e, 0xcc, 0xff,
+	0x78, 0xbe, 0xc1, 0x77, 0x0f, 0x4e, 0x1a, 0x13, 0x94, 0x59, 0xbd, 0x82, 0xae, 0x72, 0x8c, 0x0b,
+	0xaa, 0x3f, 0x7b, 0x46, 0x1b, 0x17, 0xf1, 0xd6, 0x72, 0x5a, 0x94, 0x73, 0x61, 0xf5, 0x2e, 0x2a,
+	0x3f, 0x1c, 0xbe, 0x80, 0x7e, 0x83, 0x26, 0x03, 0x68, 0xaf, 0x71, 0xe7, 0x32, 0xe9, 0x45, 0x39,
+	0x24, 0xa7, 0x70, 0x9c, 0xb1, 0xcd, 0xb6, 0x4a, 0xbb, 0x28, 0x5e, 0xb6, 0x2e, 0xbc, 0xd9, 0x4f,
+	0x0f, 0x4e, 0xea, 0xd1, 0x3f, 0xa0, 0xce, 0x78, 0x8c, 0xe4, 0x1a, 0x06, 0x97, 0xe5, 0xed, 0xaa,
+	0xce, 0x96, 0x9c, 0x35, 0xf7, 0xf5, 0xd7, 0x3d, 0x1b, 0x8e, 0xee, 0x6e, 0x16, 0x7b, 0x0e, 0x8e,
+	0xc8, 0x15, 0x3c, 0xbc, 0x44, 0xbb, 0x9f, 0x86, 0x8c, 0xee, 0x19, 0xb2, 0x50, 0x7b, 0x72, 0x30,
+	0x82, 0xe0, 0xe8, 0xf5, 0xf9, 0xe7, 0xe9, 0xa1, 0x77, 0xe3, 0xce, 0xf7, 0x6d, 0xd1, 0x75, 0xcf,
+	0xc4, 0xf9, 0x9f, 0x00, 0x00, 0x00, 0xff, 0xff, 0x27, 0xe7, 0x4a, 0xc5, 0xff, 0x04, 0x00, 0x00,
 }
diff --git a/reposerver/repository/repository.proto b/reposerver/repository/repository.proto
index 2652520ba6e8e..9917941316e57 100644
--- a/reposerver/repository/repository.proto
+++ b/reposerver/repository/repository.proto
@@ -15,7 +15,7 @@ message ManifestRequest {
     string path = 3;
     string environment = 4;
     string appLabel = 5;
-    map<string, string> inputFiles  = 6;
+    repeated github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.ComponentParameterOverride componentParameterOverrides = 6;
 }
 
 message ManifestResponse {
diff --git a/server/application/application.go b/server/application/application.go
index e3a905bedaab6..0e833b6276711 100644
--- a/server/application/application.go
+++ b/server/application/application.go
@@ -1,9 +1,7 @@
 package application
 
 import (
-	"encoding/json"
 	"fmt"
-	"strings"
 
 	"github.com/argoproj/argo-cd/common"
 	appv1 "github.com/argoproj/argo-cd/pkg/apis/application/v1alpha1"
@@ -16,7 +14,6 @@ import (
 	argoutil "github.com/argoproj/argo-cd/util/argo"
 	"github.com/argoproj/argo-cd/util/diff"
 	"github.com/argoproj/argo-cd/util/kube"
-	"github.com/pborman/uuid"
 	log "github.com/sirupsen/logrus"
 	"golang.org/x/net/context"
 	apiv1 "k8s.io/api/core/v1"
@@ -132,27 +129,6 @@ func (s *Server) Watch(q *ApplicationQuery, ws ApplicationService_WatchServer) e
 	return nil
 }
 
-func (s *Server) DeployEphemeral(ctx context.Context, req *DeployEphemeralRequest) (*DeployEphemeralResponse, error) {
-	appName := "app-" + strings.ToLower(uuid.NewRandom().String())
-	if req.InputFiles == nil {
-		req.InputFiles = make(map[string]string)
-	}
-	envFileData, err := json.Marshal(map[string]string{"id": appName})
-	if err != nil {
-		return nil, err
-	}
-	req.InputFiles["env.libsonnet"] = string(envFileData)
-	deployResult, err := s.deploy(ctx, *req.Source, req.Destination, appName, req.InputFiles, req.DryRun)
-	if err != nil {
-		return nil, err
-	}
-
-	return &DeployEphemeralResponse{
-		AppName:      appName,
-		DeployResult: deployResult,
-	}, nil
-}
-
 // Sync syncs an application to its target state
 func (s *Server) Sync(ctx context.Context, syncReq *ApplicationSyncRequest) (*ApplicationSyncResult, error) {
 	log.Infof("Syncing application %s", syncReq.Name)
@@ -185,7 +161,7 @@ func (s *Server) Sync(ctx context.Context, syncReq *ApplicationSyncRequest) (*Ap
 	}
 	log.Infof("Received deployment params: %s", deploymentInfo.Params)
 
-	res, err := s.deploy(ctx, app.Spec.Source, app.Spec.Destination, app.Name, nil, syncReq.DryRun)
+	res, err := s.deploy(ctx, app.Spec.Source, app.Spec.Destination, app.Name, syncReq.DryRun)
 	if err == nil {
 		// Persist app deployment info
 		app.Status.RecentDeployment.Params = deploymentInfo.Params
@@ -211,7 +187,6 @@ func (s *Server) deploy(
 	source appv1.ApplicationSource,
 	destination *appv1.ApplicationDestination,
 	appLabel string,
-	inputFiles map[string]string,
 	dryRun bool) (*ApplicationSyncResult, error) {
 
 	repo := s.getRepo(ctx, source.RepoURL)
@@ -220,14 +195,21 @@ func (s *Server) deploy(
 		return nil, err
 	}
 	defer util.Close(conn)
+	overrides := make([]*appv1.ComponentParameterOverride, len(source.ComponentParameterOverrides))
+	if source.ComponentParameterOverrides != nil {
+		for i := range source.ComponentParameterOverrides {
+			item := source.ComponentParameterOverrides[i]
+			overrides[i] = &item
+		}
+	}
 
 	manifestInfo, err := repoClient.GenerateManifest(ctx, &repository.ManifestRequest{
-		Repo:        repo,
-		Environment: source.Environment,
-		Path:        source.Path,
-		Revision:    source.TargetRevision,
-		InputFiles:  inputFiles,
-		AppLabel:    appLabel,
+		Repo:                        repo,
+		Environment:                 source.Environment,
+		Path:                        source.Path,
+		Revision:                    source.TargetRevision,
+		ComponentParameterOverrides: overrides,
+		AppLabel:                    appLabel,
 	})
 	if err != nil {
 		return nil, err
diff --git a/server/application/application.pb.go b/server/application/application.pb.go
index b79f2de4c746f..17395990373f8 100644
--- a/server/application/application.pb.go
+++ b/server/application/application.pb.go
@@ -18,8 +18,6 @@ It has these top-level messages:
 	ApplicationSyncRequest
 	ApplicationSyncResult
 	ResourceDetails
-	DeployEphemeralRequest
-	DeployEphemeralResponse
 */
 package application
 
@@ -202,70 +200,6 @@ func (m *ResourceDetails) GetMessage() string {
 	return ""
 }
 
-type DeployEphemeralRequest struct {
-	Source      *github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.ApplicationSource      `protobuf:"bytes,1,opt,name=source" json:"source,omitempty"`
-	Destination *github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.ApplicationDestination `protobuf:"bytes,2,opt,name=destination" json:"destination,omitempty"`
-	DryRun      bool                                                                              `protobuf:"varint,3,opt,name=dryRun" json:"dryRun,omitempty"`
-	InputFiles  map[string]string                                                                 `protobuf:"bytes,4,rep,name=inputFiles" json:"inputFiles,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
-}
-
-func (m *DeployEphemeralRequest) Reset()                    { *m = DeployEphemeralRequest{} }
-func (m *DeployEphemeralRequest) String() string            { return proto.CompactTextString(m) }
-func (*DeployEphemeralRequest) ProtoMessage()               {}
-func (*DeployEphemeralRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} }
-
-func (m *DeployEphemeralRequest) GetSource() *github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.ApplicationSource {
-	if m != nil {
-		return m.Source
-	}
-	return nil
-}
-
-func (m *DeployEphemeralRequest) GetDestination() *github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.ApplicationDestination {
-	if m != nil {
-		return m.Destination
-	}
-	return nil
-}
-
-func (m *DeployEphemeralRequest) GetDryRun() bool {
-	if m != nil {
-		return m.DryRun
-	}
-	return false
-}
-
-func (m *DeployEphemeralRequest) GetInputFiles() map[string]string {
-	if m != nil {
-		return m.InputFiles
-	}
-	return nil
-}
-
-type DeployEphemeralResponse struct {
-	AppName      string                 `protobuf:"bytes,1,opt,name=appName" json:"appName,omitempty"`
-	DeployResult *ApplicationSyncResult `protobuf:"bytes,2,opt,name=deployResult" json:"deployResult,omitempty"`
-}
-
-func (m *DeployEphemeralResponse) Reset()                    { *m = DeployEphemeralResponse{} }
-func (m *DeployEphemeralResponse) String() string            { return proto.CompactTextString(m) }
-func (*DeployEphemeralResponse) ProtoMessage()               {}
-func (*DeployEphemeralResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{7} }
-
-func (m *DeployEphemeralResponse) GetAppName() string {
-	if m != nil {
-		return m.AppName
-	}
-	return ""
-}
-
-func (m *DeployEphemeralResponse) GetDeployResult() *ApplicationSyncResult {
-	if m != nil {
-		return m.DeployResult
-	}
-	return nil
-}
-
 func init() {
 	proto.RegisterType((*ApplicationQuery)(nil), "application.ApplicationQuery")
 	proto.RegisterType((*ApplicationResponse)(nil), "application.ApplicationResponse")
@@ -273,8 +207,6 @@ func init() {
 	proto.RegisterType((*ApplicationSyncRequest)(nil), "application.ApplicationSyncRequest")
 	proto.RegisterType((*ApplicationSyncResult)(nil), "application.ApplicationSyncResult")
 	proto.RegisterType((*ResourceDetails)(nil), "application.ResourceDetails")
-	proto.RegisterType((*DeployEphemeralRequest)(nil), "application.DeployEphemeralRequest")
-	proto.RegisterType((*DeployEphemeralResponse)(nil), "application.DeployEphemeralResponse")
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -294,8 +226,6 @@ type ApplicationServiceClient interface {
 	Watch(ctx context.Context, in *ApplicationQuery, opts ...grpc.CallOption) (ApplicationService_WatchClient, error)
 	// Create creates an application
 	Create(ctx context.Context, in *github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Application, opts ...grpc.CallOption) (*github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Application, error)
-	// DeployEphemeral deployes short living application
-	DeployEphemeral(ctx context.Context, in *DeployEphemeralRequest, opts ...grpc.CallOption) (*DeployEphemeralResponse, error)
 	// Get returns an application by name
 	Get(ctx context.Context, in *ApplicationQuery, opts ...grpc.CallOption) (*github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Application, error)
 	// Update updates an application
@@ -366,15 +296,6 @@ func (c *applicationServiceClient) Create(ctx context.Context, in *github_com_ar
 	return out, nil
 }
 
-func (c *applicationServiceClient) DeployEphemeral(ctx context.Context, in *DeployEphemeralRequest, opts ...grpc.CallOption) (*DeployEphemeralResponse, error) {
-	out := new(DeployEphemeralResponse)
-	err := grpc.Invoke(ctx, "/application.ApplicationService/DeployEphemeral", in, out, c.cc, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
 func (c *applicationServiceClient) Get(ctx context.Context, in *ApplicationQuery, opts ...grpc.CallOption) (*github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Application, error) {
 	out := new(github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Application)
 	err := grpc.Invoke(ctx, "/application.ApplicationService/Get", in, out, c.cc, opts...)
@@ -429,8 +350,6 @@ type ApplicationServiceServer interface {
 	Watch(*ApplicationQuery, ApplicationService_WatchServer) error
 	// Create creates an application
 	Create(context.Context, *github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Application) (*github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Application, error)
-	// DeployEphemeral deployes short living application
-	DeployEphemeral(context.Context, *DeployEphemeralRequest) (*DeployEphemeralResponse, error)
 	// Get returns an application by name
 	Get(context.Context, *ApplicationQuery) (*github_com_argoproj_argo_cd_pkg_apis_application_v1alpha1.Application, error)
 	// Update updates an application
@@ -504,24 +423,6 @@ func _ApplicationService_Create_Handler(srv interface{}, ctx context.Context, de
 	return interceptor(ctx, in, info, handler)
 }
 
-func _ApplicationService_DeployEphemeral_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(DeployEphemeralRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(ApplicationServiceServer).DeployEphemeral(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/application.ApplicationService/DeployEphemeral",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(ApplicationServiceServer).DeployEphemeral(ctx, req.(*DeployEphemeralRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
 func _ApplicationService_Get_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(ApplicationQuery)
 	if err := dec(in); err != nil {
@@ -624,10 +525,6 @@ var _ApplicationService_serviceDesc = grpc.ServiceDesc{
 			MethodName: "Create",
 			Handler:    _ApplicationService_Create_Handler,
 		},
-		{
-			MethodName: "DeployEphemeral",
-			Handler:    _ApplicationService_DeployEphemeral_Handler,
-		},
 		{
 			MethodName: "Get",
 			Handler:    _ApplicationService_Get_Handler,
@@ -662,59 +559,47 @@ var _ApplicationService_serviceDesc = grpc.ServiceDesc{
 func init() { proto.RegisterFile("server/application/application.proto", fileDescriptor0) }
 
 var fileDescriptor0 = []byte{
-	// 855 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xcc, 0x56, 0x41, 0x6f, 0xdc, 0x44,
-	0x14, 0x96, 0xb3, 0xdb, 0x25, 0x79, 0x8b, 0x94, 0x6a, 0x48, 0xc3, 0xe2, 0xa6, 0x10, 0x4d, 0x52,
-	0x94, 0x06, 0x31, 0x6e, 0xd2, 0x4b, 0x15, 0x89, 0x03, 0x90, 0x04, 0x15, 0x55, 0x28, 0x75, 0x85,
-	0x90, 0xb8, 0xc0, 0xd4, 0x7e, 0x72, 0xcc, 0x7a, 0x3d, 0xd3, 0x99, 0x59, 0x4b, 0xab, 0xc2, 0x85,
-	0x0b, 0x47, 0x84, 0xf8, 0x01, 0xfd, 0x1d, 0xfc, 0x04, 0xce, 0x48, 0xfc, 0x02, 0x7e, 0x08, 0x9a,
-	0x59, 0x3b, 0x6b, 0xef, 0x3a, 0x9b, 0x1e, 0xf6, 0xd0, 0x93, 0x67, 0xfc, 0xde, 0xbc, 0xef, 0x7b,
-	0xdf, 0x7b, 0x7e, 0x1e, 0xd8, 0xd7, 0xa8, 0x0a, 0x54, 0x01, 0x97, 0x32, 0x4b, 0x23, 0x6e, 0x52,
-	0x91, 0xd7, 0xd7, 0x4c, 0x2a, 0x61, 0x04, 0xe9, 0xd7, 0x5e, 0xf9, 0x5b, 0x89, 0x48, 0x84, 0x7b,
-	0x1f, 0xd8, 0xd5, 0xd4, 0xc5, 0xdf, 0x49, 0x84, 0x48, 0x32, 0x0c, 0xb8, 0x4c, 0x03, 0x9e, 0xe7,
-	0xc2, 0x38, 0x67, 0x5d, 0x5a, 0xe9, 0xf0, 0xb1, 0x66, 0xa9, 0x70, 0xd6, 0x48, 0x28, 0x0c, 0x8a,
-	0xa3, 0x20, 0xc1, 0x1c, 0x15, 0x37, 0x18, 0x97, 0x3e, 0x4f, 0x92, 0xd4, 0x5c, 0x8e, 0x5f, 0xb0,
-	0x48, 0x8c, 0x02, 0xae, 0x1c, 0xc4, 0x4f, 0x6e, 0xf1, 0x69, 0x14, 0x07, 0x72, 0x98, 0xd8, 0xc3,
-	0xba, 0x41, 0xb4, 0x38, 0xe2, 0x99, 0xbc, 0xe4, 0x0b, 0xa1, 0xe8, 0xc7, 0x70, 0xfb, 0xf3, 0x99,
-	0xdf, 0xb3, 0x31, 0xaa, 0x09, 0x21, 0xd0, 0xcd, 0xf9, 0x08, 0x07, 0xde, 0xae, 0x77, 0xb0, 0x11,
-	0xba, 0x35, 0xbd, 0x03, 0xef, 0xd5, 0xfc, 0x42, 0xd4, 0x52, 0xe4, 0x1a, 0x69, 0x0c, 0x83, 0x53,
-	0xcc, 0xd0, 0x60, 0xc3, 0xf8, 0x72, 0x8c, 0xda, 0xb4, 0x85, 0x21, 0x3b, 0xb0, 0x61, 0x9f, 0x5a,
-	0xf2, 0x08, 0x07, 0x6b, 0xce, 0x30, 0x7b, 0x41, 0xb6, 0xa1, 0x37, 0x15, 0x79, 0xd0, 0x71, 0xa6,
-	0x72, 0x47, 0x7f, 0x84, 0xed, 0x5a, 0xfc, 0xe7, 0x93, 0x3c, 0x5a, 0x86, 0xe1, 0xc3, 0xba, 0xc2,
-	0x22, 0xd5, 0xa9, 0xc8, 0x4b, 0x88, 0xab, 0xbd, 0x45, 0x88, 0xd5, 0x24, 0x1c, 0xe7, 0x0e, 0x61,
-	0x3d, 0x2c, 0x77, 0x74, 0x04, 0x77, 0x16, 0x10, 0xf4, 0x38, 0x33, 0x64, 0x00, 0xef, 0x8c, 0x50,
-	0x6b, 0x9e, 0x54, 0x18, 0xd5, 0x96, 0x9c, 0xc0, 0x86, 0x42, 0x2d, 0xc6, 0x2a, 0x42, 0x3d, 0x58,
-	0xdb, 0xed, 0x1c, 0xf4, 0x8f, 0x77, 0x58, 0xbd, 0x21, 0xc2, 0xd2, 0x7a, 0x8a, 0x86, 0xa7, 0x99,
-	0x0e, 0x67, 0xee, 0xf4, 0x25, 0x6c, 0xce, 0x59, 0x5b, 0x33, 0x21, 0xd0, 0x1d, 0xa6, 0x79, 0x5c,
-	0x66, 0xe1, 0xd6, 0x4d, 0x05, 0x3b, 0xf3, 0x0a, 0xd6, 0xe8, 0x76, 0x1b, 0x74, 0xe9, 0xeb, 0x0e,
-	0x6c, 0x9f, 0xa2, 0xcc, 0xc4, 0xe4, 0x4c, 0x5e, 0xe2, 0x08, 0x15, 0xcf, 0x2a, 0x11, 0x63, 0xe8,
-	0x4d, 0xb9, 0x38, 0xf0, 0xfe, 0xf1, 0x53, 0x36, 0xeb, 0x2f, 0x56, 0xf5, 0x97, 0x5b, 0xfc, 0x10,
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-	0x42, 0xf2, 0xbb, 0x07, 0xdd, 0xa7, 0xa9, 0x36, 0xe4, 0xde, 0x75, 0x11, 0xdd, 0xc8, 0xf0, 0xbf,
-	0x5e, 0x4d, 0x1d, 0x2d, 0x14, 0xdd, 0xf9, 0xf5, 0x9f, 0xff, 0xfe, 0x5c, 0xdb, 0x26, 0x5b, 0x6e,
-	0x06, 0x16, 0x47, 0xf5, 0x41, 0xa6, 0xc9, 0x6b, 0x0f, 0x6e, 0x7d, 0xc7, 0x4d, 0x74, 0x79, 0x13,
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-	0x6e, 0x90, 0x9c, 0xaf, 0x86, 0x83, 0xbf, 0xa2, 0x38, 0xf4, 0x23, 0x97, 0xc1, 0x07, 0xb4, 0x55,
-	0xda, 0x13, 0xef, 0x90, 0xfc, 0xe6, 0xc1, 0xe6, 0x5c, 0x13, 0x92, 0xbd, 0x37, 0xf8, 0x2e, 0xfc,
-	0xfd, 0xe5, 0x4e, 0xe5, 0xef, 0xe2, 0x81, 0xc3, 0xdf, 0xa3, 0x1f, 0xb6, 0xe1, 0x07, 0x58, 0xf9,
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-	0xb3, 0x57, 0x76, 0xc2, 0xfe, 0x42, 0xfe, 0xf6, 0xa0, 0xf7, 0xad, 0x8c, 0xdf, 0xc6, 0xca, 0x06,
-	0x8e, 0xff, 0x03, 0x7f, 0xbf, 0x9d, 0xff, 0x08, 0x0d, 0x8f, 0xb9, 0xe1, 0xcc, 0x25, 0x62, 0xf5,
-	0x2d, 0xa0, 0x37, 0xfd, 0x73, 0x93, 0xfb, 0x73, 0xa5, 0x6b, 0xff, 0x9d, 0xfb, 0xbb, 0xd7, 0x15,
-	0xe2, 0xaa, 0xba, 0xa5, 0x86, 0x87, 0x4b, 0x35, 0x94, 0xb0, 0x6e, 0xbf, 0xf2, 0x0b, 0x11, 0xeb,
-	0x9b, 0x6a, 0x7b, 0x97, 0x4d, 0xef, 0x42, 0x56, 0x02, 0x66, 0xef, 0x42, 0xac, 0x38, 0x62, 0x17,
-	0x22, 0x76, 0x53, 0xe2, 0xc0, 0x81, 0x51, 0xb2, 0xbb, 0x04, 0x2c, 0x90, 0x16, 0xe5, 0x67, 0xe8,
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-	0xa7, 0x4b, 0xa1, 0xf5, 0x24, 0x8f, 0x4e, 0xbc, 0xc3, 0x2f, 0x1e, 0x7e, 0xcf, 0x96, 0xdd, 0xd6,
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-	0x38, 0x0e, 0x65, 0x71, 0x0a, 0x00, 0x00,
+	// 665 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xcc, 0x55, 0xc1, 0x6e, 0x13, 0x3d,
+	0x10, 0xd6, 0x36, 0xf9, 0xf3, 0x37, 0xee, 0x01, 0x64, 0xda, 0x2a, 0x6c, 0x53, 0x11, 0xb9, 0x2d,
+	0x2a, 0x45, 0x78, 0x9b, 0x72, 0x41, 0xbd, 0x01, 0x05, 0x04, 0xe2, 0x50, 0x82, 0x10, 0x12, 0x17,
+	0x70, 0x77, 0x47, 0xdb, 0x25, 0x89, 0xed, 0xda, 0xce, 0x4a, 0x11, 0x70, 0xe1, 0x05, 0x10, 0xe2,
+	0x01, 0x78, 0x0e, 0x1e, 0x01, 0x89, 0x1b, 0xaf, 0xc0, 0x83, 0x20, 0x3b, 0x9b, 0x66, 0xb7, 0x49,
+	0x37, 0x97, 0x1c, 0x38, 0x65, 0xec, 0x99, 0xcc, 0xf7, 0xcd, 0xe7, 0xd9, 0x19, 0xb4, 0xad, 0x41,
+	0xa5, 0xa0, 0x02, 0x26, 0x65, 0x2f, 0x09, 0x99, 0x49, 0x04, 0xcf, 0xdb, 0x54, 0x2a, 0x61, 0x04,
+	0x5e, 0xc9, 0x5d, 0xf9, 0xab, 0xb1, 0x88, 0x85, 0xbb, 0x0f, 0xac, 0x35, 0x0a, 0xf1, 0x9b, 0xb1,
+	0x10, 0x71, 0x0f, 0x02, 0x26, 0x93, 0x80, 0x71, 0x2e, 0x8c, 0x0b, 0xd6, 0x99, 0x97, 0x74, 0xef,
+	0x69, 0x9a, 0x08, 0xe7, 0x0d, 0x85, 0x82, 0x20, 0x6d, 0x07, 0x31, 0x70, 0x50, 0xcc, 0x40, 0x94,
+	0xc5, 0x3c, 0x8d, 0x13, 0x73, 0x3a, 0x38, 0xa1, 0xa1, 0xe8, 0x07, 0x4c, 0x39, 0x88, 0xf7, 0xce,
+	0xb8, 0x13, 0x46, 0x81, 0xec, 0xc6, 0xf6, 0xcf, 0xba, 0x40, 0x34, 0x6d, 0xb3, 0x9e, 0x3c, 0x65,
+	0x53, 0xa9, 0xc8, 0x4d, 0x74, 0xf5, 0xfe, 0x24, 0xee, 0xc5, 0x00, 0xd4, 0x10, 0x63, 0x54, 0xe5,
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+	0x59, 0x69, 0x70, 0x13, 0xd5, 0xed, 0xaf, 0x96, 0x2c, 0x84, 0xc6, 0x92, 0x73, 0x4c, 0x2e, 0xf0,
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+	0x75, 0x05, 0x5a, 0x0c, 0x54, 0x08, 0xba, 0xb1, 0xd4, 0xaa, 0xec, 0xae, 0x1c, 0x34, 0x69, 0xbe,
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+	0xd5, 0x35, 0x79, 0xda, 0xce, 0x77, 0xaa, 0xc6, 0xdf, 0x3d, 0xf4, 0xdf, 0x6b, 0x66, 0xc2, 0xd3,
+	0x79, 0x94, 0x8e, 0x17, 0x43, 0xc9, 0x61, 0x3d, 0x4a, 0x81, 0x1b, 0xb2, 0xe5, 0x88, 0x6d, 0xe2,
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+	0x45, 0x3d, 0x03, 0xc7, 0xff, 0x96, 0xbf, 0x3d, 0x9b, 0x7f, 0x1f, 0x0c, 0x8b, 0x98, 0x61, 0xd4,
+	0x15, 0x62, 0xf5, 0x4d, 0x51, 0x6d, 0x34, 0x10, 0xf1, 0x4e, 0x21, 0xfb, 0x65, 0x53, 0xd2, 0x6f,
+	0x5d, 0xf6, 0x10, 0xe7, 0x33, 0x36, 0xd3, 0x70, 0xaf, 0x54, 0x43, 0x89, 0x96, 0xed, 0xb7, 0x75,
+	0x2c, 0x22, 0x3d, 0xef, 0x6d, 0x37, 0xe8, 0x68, 0xc5, 0x58, 0x09, 0xa8, 0x5d, 0x31, 0x34, 0x6d,
+	0xd3, 0x63, 0x11, 0xb9, 0x6f, 0x73, 0xd7, 0x81, 0x11, 0xdc, 0x2a, 0x01, 0x0b, 0xa4, 0x45, 0xf9,
+	0x88, 0xaa, 0x76, 0x4e, 0xe2, 0xad, 0xcb, 0xd0, 0x72, 0x73, 0xda, 0x27, 0xe5, 0x41, 0x76, 0xd4,
+	0x92, 0xdb, 0x0e, 0x7a, 0x87, 0x94, 0x42, 0xeb, 0x21, 0x0f, 0x0f, 0xbd, 0xbd, 0x07, 0xfb, 0x6f,
+	0x68, 0xd9, 0x12, 0x9c, 0xde, 0xd5, 0x27, 0x35, 0xb7, 0xf0, 0xee, 0xfe, 0x0d, 0x00, 0x00, 0xff,
+	0xff, 0x59, 0xc1, 0xed, 0x1e, 0xc8, 0x07, 0x00, 0x00,
 }
diff --git a/server/application/application.pb.gw.go b/server/application/application.pb.gw.go
index 5815f5b28f06d..007dd04ea7c7f 100644
--- a/server/application/application.pb.gw.go
+++ b/server/application/application.pb.gw.go
@@ -84,19 +84,6 @@ func request_ApplicationService_Create_0(ctx context.Context, marshaler runtime.
 
 }
 
-func request_ApplicationService_DeployEphemeral_0(ctx context.Context, marshaler runtime.Marshaler, client ApplicationServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
-	var protoReq DeployEphemeralRequest
-	var metadata runtime.ServerMetadata
-
-	if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil {
-		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
-	}
-
-	msg, err := client.DeployEphemeral(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
-	return msg, metadata, err
-
-}
-
 func request_ApplicationService_Get_0(ctx context.Context, marshaler runtime.Marshaler, client ApplicationServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
 	var protoReq ApplicationQuery
 	var metadata runtime.ServerMetadata
@@ -373,35 +360,6 @@ func RegisterApplicationServiceHandlerClient(ctx context.Context, mux *runtime.S
 
 	})
 
-	mux.Handle("POST", pattern_ApplicationService_DeployEphemeral_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
-		ctx, cancel := context.WithCancel(req.Context())
-		defer cancel()
-		if cn, ok := w.(http.CloseNotifier); ok {
-			go func(done <-chan struct{}, closed <-chan bool) {
-				select {
-				case <-done:
-				case <-closed:
-					cancel()
-				}
-			}(ctx.Done(), cn.CloseNotify())
-		}
-		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
-		rctx, err := runtime.AnnotateContext(ctx, mux, req)
-		if err != nil {
-			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
-			return
-		}
-		resp, md, err := request_ApplicationService_DeployEphemeral_0(rctx, inboundMarshaler, client, req, pathParams)
-		ctx = runtime.NewServerMetadataContext(ctx, md)
-		if err != nil {
-			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
-			return
-		}
-
-		forward_ApplicationService_DeployEphemeral_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
-
-	})
-
 	mux.Handle("GET", pattern_ApplicationService_Get_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
 		ctx, cancel := context.WithCancel(req.Context())
 		defer cancel()
@@ -557,8 +515,6 @@ var (
 
 	pattern_ApplicationService_Create_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"api", "v1", "applications"}, ""))
 
-	pattern_ApplicationService_DeployEphemeral_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 2, 3}, []string{"api", "v1", "applications", "ephemeral"}, ""))
-
 	pattern_ApplicationService_Get_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 1, 0, 4, 1, 5, 3}, []string{"api", "v1", "applications", "name"}, ""))
 
 	pattern_ApplicationService_Update_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2, 1, 0, 4, 1, 5, 3}, []string{"api", "v1", "applications", "metadata.name"}, ""))
@@ -577,8 +533,6 @@ var (
 
 	forward_ApplicationService_Create_0 = runtime.ForwardResponseMessage
 
-	forward_ApplicationService_DeployEphemeral_0 = runtime.ForwardResponseMessage
-
 	forward_ApplicationService_Get_0 = runtime.ForwardResponseMessage
 
 	forward_ApplicationService_Update_0 = runtime.ForwardResponseMessage
diff --git a/server/application/application.proto b/server/application/application.proto
index 5a77b648e2e44..4ee92cf731a32 100644
--- a/server/application/application.proto
+++ b/server/application/application.proto
@@ -45,18 +45,6 @@ message ResourceDetails {
 	string message = 4;
 }
 
-message DeployEphemeralRequest {
-	github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.ApplicationSource source = 1;
-	github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.ApplicationDestination destination = 2;
-	bool dryRun = 3;
-	map<string, string> inputFiles  = 4;
-}
-
-message DeployEphemeralResponse {
-	string appName = 1;
-	ApplicationSyncResult deployResult = 2;
-}
-
 // ApplicationService
 service ApplicationService {
 
@@ -78,14 +66,6 @@ service ApplicationService {
 		};
 	}
 
-	// DeployEphemeral deployes short living application
-	rpc DeployEphemeral(DeployEphemeralRequest) returns (DeployEphemeralResponse) {
-		option (google.api.http) = {
-			post: "/api/v1/applications/ephemeral"
-			body: "*"
-		};
-	}
-
 	// Get returns an application by name
 	rpc Get(ApplicationQuery) returns (github.com.argoproj.argo_cd.pkg.apis.application.v1alpha1.Application) {
 		option (google.api.http).get = "/api/v1/applications/{name}";
diff --git a/test/e2e/fixture.go b/test/e2e/fixture.go
index 0eb447fb1f8e0..d02edb116655d 100644
--- a/test/e2e/fixture.go
+++ b/test/e2e/fixture.go
@@ -198,3 +198,8 @@ func (c *FakeGitClient) Checkout(repoPath string, sha string) error {
 	// do nothing
 	return nil
 }
+
+func (c *FakeGitClient) Reset(repoPath string) error {
+	// do nothing
+	return nil
+}
diff --git a/util/git/client.go b/util/git/client.go
index 06e6f8ec03e9b..942ef96666e19 100644
--- a/util/git/client.go
+++ b/util/git/client.go
@@ -13,6 +13,7 @@ import (
 type Client interface {
 	CloneOrFetch(url string, username string, password string, sshPrivateKey string, repoPath string) error
 	Checkout(repoPath string, sha string) error
+	Reset(repoPath string) error
 }
 
 // NativeGitClient implements Client interface using git CLI
@@ -72,6 +73,18 @@ func (m *NativeGitClient) CloneOrFetch(repo string, username string, password st
 	return nil
 }
 
+// Reset resets local changes
+func (m *NativeGitClient) Reset(repoPath string) error {
+	cmd := exec.Command("sh", "-c", "git reset --hard HEAD && git clean -f")
+	cmd.Dir = repoPath
+	_, err := cmd.Output()
+	if err != nil {
+		return fmt.Errorf("unable to reset repository %s: %v", repoPath, err)
+	}
+
+	return nil
+}
+
 // Checkout checkout specified git sha
 func (m *NativeGitClient) Checkout(repoPath string, sha string) error {
 	if sha == "" {
diff --git a/util/ksonnet/ksonnet.go b/util/ksonnet/ksonnet.go
index 6b8ba58578410..680262dbc48d3 100644
--- a/util/ksonnet/ksonnet.go
+++ b/util/ksonnet/ksonnet.go
@@ -31,6 +31,9 @@ type KsonnetApp interface {
 	// Show returns a list of unstructured objects that would be applied to an environment
 	Show(environment string) ([]*unstructured.Unstructured, error)
 	ListEnvParams(environment string) (map[string]string, error)
+
+	// SetComponentParams updates component parameter in specified environment.
+	SetComponentParams(environment string, component string, param string, value string) error
 }
 
 type ksonnetApp struct {
@@ -129,3 +132,9 @@ func (k *ksonnetApp) ListEnvParams(environment string) (params map[string]string
 	}
 	return
 }
+
+// SetComponentParams updates component parameter in specified environment.
+func (k *ksonnetApp) SetComponentParams(environment string, component string, param string, value string) error {
+	_, err := k.ksCmd("param", "set", component, param, value, "--env", environment)
+	return err
+}