gh-32: skip network configuration when no IPs are defined

base_arch/etc/one-context.d/10-network

@@ -225,5 +225,7 @@ EOT
     done
 }
 
+[ -z "$(env | cut -d= -f1 | grep -E '^ETH[0-9]+_IPV*6*')" ] && exit 0
+
 gen_network_configuration
 

base_deb.one/etc/one-context.d/10-network

@@ -274,6 +274,8 @@ activate_network()
     sleep 2
 }
 
+[ -z "$(env | cut -d= -f1 | grep -E '^ETH[0-9]+_IPV*6*')" ] && exit 0
+
 deactivate_network
 configure_network
 activate_network

base_rpm.one/etc/one-context.d/10-network

@@ -207,5 +207,7 @@ configure_network()
     sleep 2
 }
 
+[ -z "$(env | cut -d= -f1 | grep -E '^ETH[0-9]+_IPV*6*')" ] && exit 0
+
 configure_network