diff --git a/deploy/single-node/config.cue b/deploy/single-node/config.cue
index 5af056e..549d848 100644
--- a/deploy/single-node/config.cue
+++ b/deploy/single-node/config.cue
@@ -123,6 +123,9 @@ _deviceAddressTest: {
 
 		// Human-readable interface description to show in the frontend
 		description: string
+
+		// Groups in which this interface should take place
+		groups: [...string]
 	}
 
 	vlan: [ID=string]: {
diff --git a/deploy/single-node/k8s/clickhouse/clickhouse.cue b/deploy/single-node/k8s/clickhouse/clickhouse.cue
index e3ff809..5e465fc 100644
--- a/deploy/single-node/k8s/clickhouse/clickhouse.cue
+++ b/deploy/single-node/k8s/clickhouse/clickhouse.cue
@@ -14,6 +14,7 @@ import (
 	interface: [string]: {
 		id:          int
 		description: string
+		groups: [...string]
 	}
 	vlan: [string]: {
 		id:          int
diff --git a/deploy/single-node/k8s/clickhouse/files.cue b/deploy/single-node/k8s/clickhouse/files.cue
index bd9aa81..ef5d122 100644
--- a/deploy/single-node/k8s/clickhouse/files.cue
+++ b/deploy/single-node/k8s/clickhouse/files.cue
@@ -40,7 +40,7 @@ ClickHouseInstallation: netmeta: spec: configuration: files: {
 // Dictionary for user-defined interface name lookup
 _files: InterfaceNames: {
 	data: strings.Join([ for s in #Config.sampler for i in s.interface {
-		strings.Join([s.device, "\(i.id)", i.description], "\t")
+		strings.Join([s.device, "\(i.id)", i.description, "[\(strings.Join([for s in i.groups {"'\(s)'"}], ","))]"], "\t")
 	}], "\n")
 
 	cfg: {
diff --git a/deploy/single-node/tests/base.cue b/deploy/single-node/tests/base.cue
index f5075f9..b0aa0ef 100644
--- a/deploy/single-node/tests/base.cue
+++ b/deploy/single-node/tests/base.cue
@@ -94,7 +94,7 @@ test: "clickhouse: sampler with interface": T={
 		}
 
 	}
-	asserts: T.out.k8s.ClickHouseInstallation.netmeta.spec.configuration.files."InterfaceNames.tsv" == "::ffff:100.0.0.1\t858\tTRANSIT-ABC"
+	asserts: T.out.k8s.ClickHouseInstallation.netmeta.spec.configuration.files."InterfaceNames.tsv" == "::ffff:100.0.0.1\t858\tTRANSIT-ABC\t[]"
 	asserts: T.out.k8s.ClickHouseInstallation.netmeta.spec.configuration.files."SamplerConfig.tsv" == "::ffff:100.0.0.1\tNULL\tNULL\tfalse"
 }
 
@@ -109,6 +109,22 @@ test: "clickhouse: sampler with desc and interfaces": T={
 		}
 	}
 
-	asserts: T.out.k8s.ClickHouseInstallation.netmeta.spec.configuration.files."InterfaceNames.tsv" == "::ffff:100.0.0.1\t858\tTRANSIT-ABC"
+	asserts: T.out.k8s.ClickHouseInstallation.netmeta.spec.configuration.files."InterfaceNames.tsv" == "::ffff:100.0.0.1\t858\tTRANSIT-ABC\t[]"
+	asserts: T.out.k8s.ClickHouseInstallation.netmeta.spec.configuration.files."SamplerConfig.tsv" == "::ffff:100.0.0.1\tNULL\tfoo\tfalse"
+}
+
+
+test: "clickhouse: sampler with desc,interfaces,groups": T={
+	config: {
+		_requiredDefaults
+		letsencryptMode: "off"
+
+		sampler: "::ffff:100.0.0.1": {
+			description: "foo"
+			interface: "858": {description: "TRANSIT-ABC", groups: ["A", "B"]}
+		}
+	}
+
+	asserts: T.out.k8s.ClickHouseInstallation.netmeta.spec.configuration.files."InterfaceNames.tsv" == "::ffff:100.0.0.1\t858\tTRANSIT-ABC\t['A','B']"
 	asserts: T.out.k8s.ClickHouseInstallation.netmeta.spec.configuration.files."SamplerConfig.tsv" == "::ffff:100.0.0.1\tNULL\tfoo\tfalse"
 }