Adding in Transmission.

Template/template.json

@@ -287,6 +287,70 @@
       }
     ]
   },
+  {
+    "type": 1,
+    "title": "Transmission-OpenVPN",
+    "name": "transmission-openvpn",
+    "description": "This container contains OpenVPN and Transmission with a configuration\nwhere Transmission is running only when OpenVPN has an active tunnel.\nIt bundles configuration files for many popular VPN providers to make the setup easier.",
+    "logo": "https://raw.githubusercontent.com/SelfhostedPro/selfhosted_templates/master/Images/transmission-icon.png",
+    "image": "haugene/transmission-openvpn:latest",
+    "note" : "List of supported providers available <a href='https://haugene.github.io/docker-transmission-openvpn/supported-providers'/>here</a>.",
+    "categories": [
+      "Other",
+      "VPN",
+      "Tools"
+    ],
+    "platform": "linux",
+    "restart_policy": "unless-stopped",
+    "ports": [
+      "8080:8080/tcp"
+    ],
+    "volumes": [
+      {
+        "container": "/data",
+        "bind": "/portainer/Downloads"
+      },
+      {
+        "container": "/etc/localtime",
+        "bind": "/etc/localtime"
+      }
+    ],
+    "env": [
+      {
+        "name": "PUID",
+        "label": "PUID",
+        "default": "1000",
+        "preset": true
+      },
+      {
+        "name": "PGID",
+        "label": "PGID",
+        "default": "100",
+        "preset": true
+      },
+      {
+        "name": "OPENVPN_PROVIDER",
+        "label": "OPENVPN_PROVIDER",
+        "description": "https://haugene.github.io/docker-transmission-openvpn/supported-providers/",
+        "default": "MULLVAD"
+      },
+      {
+        "name": "OPENVPN_USERNAME",
+        "label": "OPENVPN_USERNAME",
+        "default": ""
+      },
+      {
+        "name": "OPENVPN_PASSWORD",
+        "label": "OPENVPN_PASSWORD",
+        "default": ""
+      },
+      {
+        "name": "LOCAL_NETWORK",
+        "label": "LOCAL_NETWORK",
+        "default": "192.168.0.0/24"
+      }
+    ]
+  },
   {
     "type": 1,
     "title": "airsonic",