Update build_workflow.go
diff --git a/internal/pkg/image_repositories/build_workflow.go b/internal/pkg/image_repositories/build_workflow.go
index 06ea560..a5b48e7 100644
--- a/internal/pkg/image_repositories/build_workflow.go
+++ b/internal/pkg/image_repositories/build_workflow.go
@@ -30,6 +30,7 @@
 	"glance":        "kubectl lsscsi nvme-cli sysfsutils udev util-linux",
 	"heat":          "curl",
 	"ironic":        "ethtool lshw iproute2",
+	"magnum":        "haproxy",
 	"manila":        "iproute2 openvswitch-switch",
 	"monasca-agent": "iproute2 libvirt-clients lshw",
 	"neutron":       "jq ethtool lshw",