System: add NFSD manipulation

tools/json/config.network.json

@@ -96,6 +96,36 @@
                     "status": "Disabled",
                     "author": "@armbian",
                     "condition": ""
+                },
+                {
+                    "id": "NE105",
+                    "description": "Install NFS daemon",
+                    "command": [
+                        "module_nfsd install"
+                    ],
+                    "status": "Stable",
+                    "author": "@igorpecovnik",
+                    "condition": "! module_nfsd status"
+                },
+                {
+                    "id": "NE106",
+                    "description": "Configure NFS daemon",
+                    "command": [
+                        "module_nfsd manage"
+                    ],
+                    "status": "Stable",
+                    "author": "@igorpecovnik",
+                    "condition": "module_nfsd status"
+                },
+                {
+                    "id": "NE107",
+                    "description": "Remove NFS daemon",
+                    "command": [
+                        "module_nfsd uninstall"
+                    ],
+                    "status": "Stable",
+                    "author": "@igorpecovnik",
+                    "condition": "module_nfsd status"
                 }
             ]
         }

tools/modules/functions/set_runtime_variables.sh

@@ -57,6 +57,7 @@ function set_runtime_variables() {
 	SOFTWARE_FOLDER="/armbian" # where we should keep 3rd party software
 	DEFAULT_ADAPTER=$(ip -4 route ls | grep default | tail -1 | grep -Po '(?<=dev )(\S+)')
 	LOCALIPADD=$(ip -4 addr show dev $DEFAULT_ADAPTER | awk '/inet/ {print $2}' | cut -d'/' -f1)
+	LOCALSUBNET=$(echo ${LOCALIPADD} | cut -d"." -f1-3).0/24
 	BACKTITLE="Contribute: https://github.com/armbian/configng"
 	TITLE="Armbian configuration utility"
 	[[ -z "${DEFAULT_ADAPTER// /}" ]] && DEFAULT_ADAPTER="lo"

tools/modules/network/module_nfsd.sh

@@ -0,0 +1,120 @@
+module_options+=(
+	["module_nfsd,author"]="@igorpecovnik"
+	["module_nfsd,feature"]="module_nfsd"
+	["module_nfsd,desc"]="Install nfsd server"
+	["module_nfsd,example"]="install remove manage add status help"
+	["module_nfsd,port"]=""
+	["module_nfsd,status"]="Active"
+	["module_nfsd,arch"]=""
+)
+#
+# Module nfsd
+#
+function module_nfsd () {
+	local title="nfsd"
+	local condition=$(which "$title" 2>/dev/null)?
+
+	# we will store our config in subfolder
+	mkdir -p /etc/exports.d/
+
+	local commands
+	IFS=' ' read -r -a commands <<< "${module_options["module_nfsd,example"]}"
+
+	NFSD_BASE="${SOFTWARE_FOLDER}/nfsd"
+
+	case "$1" in
+		"${commands[0]}")
+			apt_install_wrapper apt-get -y install nfs-common nfs-kernel-server
+			# add some exports
+			${module_options["module_nfsd,feature"]} ${commands[2]}
+			systemctl restart nfs-server.service
+		;;
+		"${commands[1]}")
+			apt_install_wrapper apt-get -y autopurge nfs-kernel-server
+		;;
+		"${commands[2]}")
+			while true; do
+				LIST=() IFS=$'\n' LIST=($(grep "^[^#;]" /etc/exports.d/armbian.exports))
+				LIST_LENGTH=${#LIST[@]}
+				if [[ "${LIST_LENGTH}" -ge 1 ]]; then
+					line=$(dialog --no-items \
+					--title "Select export to edit" \
+					--ok-label "Add" \
+					--cancel-label "Apply" \
+					--extra-button \
+					--extra-label "Delete" \
+					--menu "" \
+					$((${LIST_LENGTH} + 6)) \
+					80 \
+					$((${LIST_LENGTH})) \
+					${LIST[@]} 3>&1 1>&2 2>&3)
+					exitstatus=$?
+					case "$exitstatus" in
+						0)
+							${module_options["module_nfsd,feature"]} ${commands[3]}
+						;;
+						1)
+							break
+						;;
+						3)
+							sed -i '\?^'$line'?d' /etc/exports.d/armbian.exports
+						;;
+					esac
+				else
+					${module_options["module_nfsd,feature"]} ${commands[3]}
+					break
+				fi
+			done
+			systemctl restart nfs-server.service
+		;;
+		"${commands[3]}")
+			# choose between most common options
+			LIST=()
+			LIST=("ro" "Allow read only requests" On)
+			LIST+=("rw" "Allow read and write requests" OFF)
+			LIST+=("sync" "Immediate sync all writes" On)
+			LIST+=("fsid=0" "Check man pages" OFF)
+			LIST+=("no_subtree_check" "Disables subtree checking, improves reliability" On)
+			LIST_LENGTH=$((${#LIST[@]}/3))
+			if add_folder=$(dialog --title \
+							"Which folder do you want to export?" \
+							--inputbox "" \
+							6 80 "/armbian" 3>&1 1>&2 2>&3); then
+				if add_ip=$(dialog --title \
+							"Which IP or range can access this folder?" \
+							--inputbox "\nExamples: 192.168.1.1, 192.168.1.0/24" \
+							8 80 "${LOCALSUBNET}" 3>&1 1>&2 2>&3); then
+					if add_options=$(dialog --separate-output \
+							--nocancel \
+							--title "NFS volume options" \
+							--checklist "" \
+							$((${LIST_LENGTH} + 6)) 80 ${LIST_LENGTH} "${LIST[@]}" 3>&1 1>&2 2>&3); then
+							echo "$add_folder $add_ip($(echo $add_options | tr ' ' ','))" \
+							>> /etc/exports.d/armbian.exports
+					fi
+				fi
+			fi
+		;;
+		"${commands[4]}")
+			if systemctl is-active --quiet nfs-server.service; then
+				return 0
+			else
+				return 1
+			fi
+		;;
+		"${commands[5]}")
+			echo -e "\nUsage: ${module_options["module_nfsd,feature"]} <command>"
+			echo -e "Commands:  ${module_options["module_nfsd,example"]}"
+			echo "Available commands:"
+			echo -e "\tinstall\t- Install $title."
+			echo -e "\tmanage\t- Edit exports in $title."
+			echo -e "\tadd\t- Add exports to $title."
+			echo -e "\tstatus\t- Installation status $title."
+			echo -e "\tremove\t- Remove $title."
+			echo
+		;;
+		*)
+		${module_options["module_nfsd,feature"]} ${commands[5]}
+		;;
+	esac
+}