nocloud: add static IPv4 network-config support

lib/tiny-cloud/cloud/nocloud/init

@@ -87,6 +87,26 @@ set_network_config_v2() {
 					"use dhcp" >> "$ETC/network/interfaces"
 				configured=1
 				;;
+			*)
+				local address gateway nameservers server
+				address="$(get_network_config ethernets/$iface/addresses/1)"
+				[ -n "$address" ] || continue
+				printf "%s\n%s\n\taddress %s\n" \
+					"auto $target_name" \
+					"iface $target_name" \
+					"$address" >> "$ETC/network/interfaces"
+				gateway="$(get_network_config ethernets/$iface/gateway4)"
+				if [ -n "$gateway" ]; then
+					printf "\tgateway %s\n" "$gateway" >> "$ETC/network/interfaces"
+				fi
+				printf "\n" >> "$ETC/network/interfaces"
+				nameservers="$(get_network_config ethernets/$iface/nameservers/addresses)"
+				for server in $nameservers; do
+					add_once "$ETC/resolv.conf" \
+						"nameserver $(get_network_config ethernets/$iface/nameservers/addresses/$server)"
+				done
+				configured=1
+				;;
 		esac
 	done
 

tests/tiny-cloud-alpine.test

@@ -14,6 +14,7 @@ init_tests \
 	set_network_config_v2_dhcp4 \
 	set_network_config_v2_match_macaddress_set_name_dhcp4 \
 	set_network_config_v2_configures_macifrename_service \
+	set_network_config_v2_static_ipv4 \
 	set_network_config_auto \
 	userdata_user_name \
 	userdata_user_homedir \
@@ -170,6 +171,7 @@ set_network_config_v2_configures_macifrename_service_body() {
 	atf_check \
 		-o match:"rc-update add macifrename boot" \
 		-o match:"rc-service macifrename start" \
+		-o match:"rc-update add sshd default" \
 		-e match:"set_network_interfaces: done" \
 		tiny-cloud boot
 
@@ -178,6 +180,41 @@ set_network_config_v2_configures_macifrename_service_body() {
 		cat etc/conf.d/macifrename
 }
 
+set_network_config_v2_static_ipv4_body() {
+	fake_network_config_nocloud <<-EOF
+		version: 2
+		ethernets:
+		  net0:
+		    match:
+		      macaddress: 52:55:55:1d:2a:0b
+		    set-name: lima0
+		    addresses:
+		      - 192.168.100.10/24
+		    gateway4: 192.168.100.1
+		    nameservers:
+		      addresses:
+		        - 8.8.8.8
+		        - 8.8.4.4
+	EOF
+
+	atf_check \
+		-o ignore \
+		-e match:"set_network_interfaces: done" \
+		tiny-cloud boot
+
+	atf_check \
+		-o match:"auto lima0" \
+		-o match:"iface lima0" \
+		-o match:"address 192.168.100.10/24" \
+		-o match:"gateway 192.168.100.1" \
+		cat etc/network/interfaces
+
+	atf_check \
+		-o match:"^nameserver 8.8.8.8$" \
+		-o match:"^nameserver 8.8.4.4$" \
+		cat etc/resolv.conf
+}
+
 set_network_config_auto_body() {
 	fake_metadata_nocloud <<-EOF
 		resolv_conf: