feat(nfs): support multiple configurable NFS shares with folder/network/read_only options

nfs/config.json

@@ -1,6 +1,6 @@
 {
   "name": "NFS Server",
-  "version": "1.0.1",
+  "version": "1.0.3",
   "slug": "nfs_server",
   "description": "Expose Home Assistant media folder via NFS.",
   "arch": [
@@ -16,15 +16,31 @@
     "SYS_ADMIN"
   ],
   "apparmor": false,
+  "hassio_api": true,
   "kernel_modules": true,
   "map": [
-    "media:rw"
+    "media:rw",
+    "share:rw",
+    "config:ro",
+    "backup:ro"
   ],
   "options": {
-    "allowed_network": "192.168.1.0/24"
+    "shares": [
+      {
+        "folder": "media",
+        "allowed_network": "192.168.1.0/24",
+        "read_only": false
+      }
+    ]
   },
   "schema": {
-    "allowed_network": "str"
+    "shares": [
+      {
+        "folder": "str",
+        "allowed_network": "str",
+        "read_only": "bool"
+      }
+    ]
   },
   "build_from": {
     "amd64": "ghcr.io/home-assistant/amd64-base:latest",

nfs/run.sh

@@ -1,17 +1,37 @@
 #!/usr/bin/env bashio
 
-# Read config
-NETWORK=$(bashio::config 'allowed_network')
+# Build /etc/exports from configured shares
+bashio::log.info "Configuring NFS exports..."
+> /etc/exports
+
+for index in $(bashio::config 'shares|keys[]'); do
+    FOLDER=$(bashio::config "shares[${index}].folder")
+    NETWORK=$(bashio::config "shares[${index}].allowed_network")
+    READ_ONLY=$(bashio::config "shares[${index}].read_only")
+    MOUNT_PATH="/${FOLDER}"
+
+    if bashio::var.true "${READ_ONLY}"; then
+        OPTIONS="ro,sync,no_subtree_check,no_root_squash"
+    else
+        OPTIONS="rw,sync,no_subtree_check,no_root_squash"
+    fi
+
+    bashio::log.info "Exporting ${MOUNT_PATH} to ${NETWORK} (${OPTIONS})..."
+    echo "${MOUNT_PATH} ${NETWORK}(${OPTIONS})" >> /etc/exports
+done
 
-# Setup exports
-bashio::log.info "Exporting /media folder to ${NETWORK}..."
-echo "/media ${NETWORK}(rw,sync,no_subtree_check,no_root_squash)" > /etc/exports
 cat /etc/exports
 
 # Load NFS kernel module
 bashio::log.info "Loading nfsd kernel module..."
 modprobe nfsd 2>/dev/null || bashio::log.warning "nfsd module not available, assuming built-in..."
 
+# Mount nfsd filesystem if not already mounted
+if ! mountpoint -q /proc/fs/nfsd 2>/dev/null; then
+    bashio::log.info "Mounting nfsd filesystem..."
+    mount -t nfsd nfsd /proc/fs/nfsd || bashio::log.warning "Could not mount nfsd filesystem, it may be built-in..."
+fi
+
 # Start NFS services
 bashio::log.info "Starting NFS services..."
 rpcbind