Create basic installation script

install_service.sh

@@ -0,0 +1,103 @@
+#!/bin/bash
+
+# Function to check if a command exists
+command_exists () {
+    command -v "$1" &> /dev/null
+}
+
+# Check if Cargo is installed
+if ! command_exists cargo; then
+    echo "Cargo could not be found. Please install Rust and Cargo."
+    exit 1
+fi
+
+# Build the eBPF binary
+echo "Running 'cargo xtask build-ebpf --release'..."
+if ! cargo xtask build-ebpf --release; then
+    echo "Command 'cargo xtask build-ebpf --release' failed to execute."
+    exit 1
+fi
+
+# Build userspace
+echo "Running 'cargo build --release'..."
+if ! cargo build --release; then
+    echo "Command 'cargo build --release' failed to execute."
+    exit 1
+fi
+
+# Install binary
+BINARY_PATH="target/release/validator-firewall"
+if [ -f "$BINARY_PATH" ]; then
+    echo "Copying the binary to /usr/local/sbin..."
+    sudo cp "$BINARY_PATH" /usr/local/sbin/
+else
+    echo "Binary file 'validator-firewall' not found."
+    exit 1
+fi
+
+# Create config dir
+echo "Creating directory /etc/validator-firewall/..."
+sudo mkdir -p /etc/validator-firewall/
+
+# Create exmaple static overrides file
+STATIC_OVERRIDES_FILE="/etc/validator-firewall/static_overrides.yml"
+echo "Creating static_overrides.yml file..."
+sudo bash -c "cat > $STATIC_OVERRIDES_FILE" <<EOL
+allow:
+  - name: example_node
+  - ip: 1.2.3.4
+deny:
+  - name: spammer_node
+  - ip: 1.2.3.6
+EOL
+
+# Prompt for interface to filter on
+while true; do
+    read -p "Enter the network interface to run on (e.g., eth0): " interface
+    if ip link show "$interface" &> /dev/null; then
+        echo "Interface $interface found."
+        break
+    else
+        echo "Interface $interface does not exist. Please enter a valid interface."
+    fi
+done
+
+# Create a template systemd unit file
+SYSTEMD_FILE="/etc/systemd/system/validator-firewall.service"
+echo "Creating systemd unit file..."
+sudo bash -c "cat > $SYSTEMD_FILE" <<EOL
+[Unit]
+Description=Validator Firewall Service
+After=network.target
+
+[Service]
+Environment=RUST_LOG=info
+ExecStart=/usr/local/sbin/validator-firewall --iface $interface --static-overrides $STATIC_OVERRIDES_FILE
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
+EOL
+
+# Reload systemd daemon and enable the service
+echo "Reloading systemd daemon..."
+sudo systemctl daemon-reload
+
+echo "Enabling validator-firewall service..."
+sudo systemctl enable validator-firewall.service
+
+# Prompt whether to start the service
+read -p "Do you want to start the validator-firewall service now? (y/n): " start_service
+
+if [[ "$start_service" =~ ^[Yy]$ ]]; then
+    echo "Starting validator-firewall service..."
+    sudo systemctl start validator-firewall.service
+    echo "Service started."
+else
+    echo "You can start the service later by running: sudo systemctl start validator-firewall.service"
+fi
+
+echo "Setup complete!\n"
+echo "Configuration file location: $STATIC_OVERRIDES_FILE"
+echo "To monitor the output of the validator-firewall service, use the following command:"
+echo "sudo journalctl -u validator-firewall.service -f"