env: export ZONE{zoneID}_REGION

Signed-off-by: Alejandro Mery <amery@jpi.io>

pkg/cluster/env.go

@@ -94,6 +94,9 @@ func (m *Env) writeEnvZone(w io.Writer, z *Zone) {
 	gateways, _ := z.GatewayIDs()
 	m.writeEnvVarInts(w, gateways, "ZONE%v_%s", zoneID, "GW")
 
+	// ZONE{zoneID}_REGION
+	m.writeEnvVar(w, genEnvZoneRegion(z), "ZONE%v_%s", zoneID, "REGION")
+
 	// Ceph
 	monitors := z.GetCephMonitors()
 	// MON{zoneID}_NAME
@@ -166,6 +169,21 @@ func genEnvZoneNodes(z *Zone) string {
 	return ""
 }
 
+func genEnvZoneRegion(z *Zone) string {
+	var region string
+
+	z.ForEachRegion(func(r *Region) bool {
+		if r.Cluster != nil {
+			region = r.Name
+			return true
+		}
+
+		return false
+	})
+
+	return region
+}
+
 func genEnvZoneCephMonNames(m Machines) string {
 	var buf strings.Builder
 	m.ForEachMachine(func(p *Machine) bool {