feat: add support for non-interactive installation by specifying network interface via environment variable

README.md

@@ -34,6 +34,12 @@ Before getting started, ensure that you have:
 curl -sfL https://get.quickstack.dev/setup.sh | sh -
 ```
 
+**Non-interactive installation:**
+If you want to skip the network interface selection prompt, you can specify the interface using the `INSTALL_K3S_INTERFACE` environment variable:
+```bash
+curl -sfL https://get.quickstack.dev/setup.sh | INSTALL_K3S_INTERFACE=eth0 sh -
+```
+
 Visit our [docs](https://quickstack.dev/docs/intro) for more detailed installation instructions:
 
 ## Contributing

setup/setup-canary.sh

@@ -37,6 +37,10 @@ select_network_interface() {
       echo "Invalid selection. Exiting."
       exit 1
     fi
+  else
+    selected_iface="$INSTALL_K3S_INTERFACE"
+    selected_ip=$(ip -o -4 addr show "$selected_iface" | awk '{print $4}' | cut -d'/' -f1)
+    echo "Using provided network interface: $selected_iface ($selected_ip)"
   fi
 
   echo "Using network interface: $selected_iface with IP address: $selected_ip"

setup/setup-worker.sh

@@ -49,6 +49,10 @@ select_network_interface() {
             echo "Invalid selection. Exiting."
             exit 1
         fi
+    else
+        selected_iface="$INSTALL_K3S_INTERFACE"
+        selected_ip=$(ip -o -4 addr show "$selected_iface" | awk '{print $4}' | cut -d'/' -f1)
+        echo "Using provided network interface: $selected_iface ($selected_ip)"
     fi
 
     echo "Using network interface: $selected_iface with IP address: $selected_ip"

setup/setup.sh

@@ -37,6 +37,10 @@ select_network_interface() {
       echo "Invalid selection. Exiting."
       exit 1
     fi
+  else
+    selected_iface="$INSTALL_K3S_INTERFACE"
+    selected_ip=$(ip -o -4 addr show "$selected_iface" | awk '{print $4}' | cut -d'/' -f1)
+    echo "Using provided network interface: $selected_iface ($selected_ip)"
   fi
 
   echo "Using network interface: $selected_iface with IP address: $selected_ip"