Update Azure template

- Add Ubuntu 22.04 and set as default

azure/README-zh.md

@@ -9,7 +9,7 @@
  - Username for VPN **and** SSH （用户名）
  - Password for VPN **and** SSH （密码）
  - IPsec Pre-Shared Key for VPN （IPsec 预共享密钥）
- - Operating System Image （操作系统镜像，Ubuntu 20.04/18.04 或 Debian 9）
+ - Operating System Image （操作系统镜像，Ubuntu 22.04/20.04/18.04 或 Debian 9）
  - Virtual Machine Size （虚拟机大小，默认值： Standard_B1s）
 
 **注：** \*不要\* 在值中使用这些字符： `\ " '`
@@ -29,4 +29,10 @@
 
 ## 屏幕截图
 
+<details>
+<summary>
+单击查看屏幕截图。
+</summary>
+
 ![Azure Custom Deployment](custom_deployment_screenshot.png)
+</details>

azure/README.md

@@ -9,7 +9,7 @@ Customizable with the following options:
  - Username for VPN **and** SSH
  - Password for VPN **and** SSH
  - IPsec Pre-Shared Key for VPN
- - Operating System Image (Ubuntu 20.04/18.04 or Debian 9)
+ - Operating System Image (Ubuntu 22.04/20.04/18.04 or Debian 9)
  - Virtual Machine Size (Default: Standard_B1s)
 
 **Note:** DO NOT use these special characters within values: `\ " '`
@@ -29,4 +29,10 @@ Copyright (C) 2017-2022 [Lin Song](https://github.com/hwdsl2)
 
 ## Screenshot
 
+<details>
+<summary>
+Click to see screenshot.
+</summary>
+
 ![Azure Custom Deployment](custom_deployment_screenshot.png)
+</details>

azure/azuredeploy.json

@@ -24,13 +24,14 @@
     "image": {
       "type": "string",
       "allowedValues": [
+        "ubuntu22.04",
         "ubuntu20.04",
         "ubuntu18.04",
         "debian9"
       ],
-      "defaultValue": "ubuntu20.04",
+      "defaultValue": "ubuntu22.04",
       "metadata": {
-        "description": "OS to use. Ubuntu 20.04/18.04 or Debian 9."
+        "description": "OS to use. Ubuntu 22.04/20.04/18.04 or Debian 9."
       }
     },
     "VMSize": {
@@ -61,6 +62,12 @@
     "vhdStorageType": "Standard_LRS",
     "vnetId": "[resourceId('Microsoft.Network/virtualNetworks', variables('virtualNetworkName'))]",
     "SubnetRef": "[concat(variables('vnetId'), '/subnets/', variables('subnetName'))]",
+    "ubuntu22.04": {
+      "publisher": "Canonical",
+      "offer": "0001-com-ubuntu-server-jammy",
+      "sku": "22_04-lts",
+      "version": "latest"
+    },
     "ubuntu20.04": {
       "publisher": "Canonical",
       "offer": "0001-com-ubuntu-server-focal",

vpnsetup_ubuntu.sh

@@ -80,6 +80,7 @@ check_os() {
       exiterr "This script only supports Ubuntu and Debian."
       ;;
   esac
+  os_arch=$(uname -m | tr -dc 'A-Za-z0-9_-')
   os_ver=$(sed 's/\..*//' /etc/debian_version | tr -dc 'A-Za-z0-9')
   if [ "$os_ver" = "8" ] || [ "$os_ver" = "jessiesid" ]; then
     exiterr "Debian 8 or Ubuntu < 16.04 is not supported."
@@ -535,6 +536,19 @@ apply_gcp_mtu_fix() {
   fi
 }
 
+apply_xl2tpd_fix() {
+  if [ "$os_type" = "ubuntu" ] && [ "$os_ver" = "bookwormsid" ] && [ "$os_arch" = "x86_64" ]; then
+    xl2tpd_url="https://mirrors.kernel.org/ubuntu/pool/universe/x/xl2tpd"
+    deb_file="xl2tpd_1.3.16-1ubuntu0.1_amd64.deb"
+    cd /opt/src || exit 1
+    if wget -t 3 -T 30 -q -O "$deb_file" "$xl2tpd_url/$deb_file"; then
+      bigecho "Applying fix for xl2tpd..."
+      apt-get -yqq install "./$deb_file" >/dev/null
+    fi
+    /bin/rm -f "$deb_file"
+  fi
+}
+
 enable_on_boot() {
   bigecho "Enabling services on boot..."
   IPT_PST=/etc/init.d/iptables-persistent
@@ -687,6 +701,7 @@ vpnsetup() {
   create_vpn_config
   update_sysctl
   update_iptables
+  apply_xl2tpd_fix
   apply_gcp_mtu_fix
   enable_on_boot
   start_services