Initial commit

ansible/roles/bridge/tasks/main.yml

@@ -0,0 +1,18 @@
+---
+- name: Create bridge setup script
+  template:
+    src: setup-bridge.sh.j2
+    dest: /usr/local/bin/setup-bridge-{{ gateway_config.lab_name }}.sh
+    mode: '0755'
+
+- name: Create systemd service for bridge
+  template:
+    src: bridge.service.j2
+    dest: /etc/systemd/system/bridge-{{ gateway_config.lab_name }}.service
+  notify: reload systemd
+
+- name: Enable and start bridge service
+  systemd:
+    name: bridge-{{ gateway_config.lab_name }}
+    enabled: yes
+    state: started

ansible/roles/bridge/templates/bridge.service.j2

@@ -0,0 +1,13 @@
+[Unit]
+Description=Bridge for {{ gateway_config.lab_name }}
+After=vxlan-{{ gateway_config.lab_name }}.service
+Requires=vxlan-{{ gateway_config.lab_name }}.service
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/usr/local/bin/setup-bridge-{{ gateway_config.lab_name }}.sh
+ExecStop=/sbin/ip link delete br-{{ gateway_config.lab_name }}
+
+[Install]
+WantedBy=multi-user.target

ansible/roles/bridge/templates/setup-bridge.sh.j2

@@ -0,0 +1,38 @@
+#!/bin/bash
+set -e
+
+LAB_NAME="{{ gateway_config.lab_name }}"
+VNI="{{ gateway_config.vni }}"
+BR_IF="br-${LAB_NAME}"
+VXLAN_IF="vxlan${VNI}"
+LAB_IF="{{ gateway_config.lab_if }}"
+
+# Wait for VXLAN interface
+timeout=30
+while [ $timeout -gt 0 ]; do
+    if ip link show ${VXLAN_IF} >/dev/null 2>&1; then
+        break
+    fi
+    sleep 1
+    timeout=$((timeout-1))
+done
+
+# Create bridge
+if ! ip link show ${BR_IF} &>/dev/null; then
+    ip link add ${BR_IF} type bridge
+    ip link set ${BR_IF} type bridge stp_state {{ bridge_stp | ternary('1', '0') }}
+    ip link set ${BR_IF} type bridge forward_delay {{ bridge_forward_delay }}
+fi
+
+# Add interfaces to bridge
+ip link set ${VXLAN_IF} master ${BR_IF}
+ip link set ${LAB_IF} master ${BR_IF}
+
+# Configure bridge IP (for DHCP server)
+ip addr flush dev ${BR_IF}
+ip addr add {{ gateway_config.subnet | ipaddr('1') | ipaddr('address') }}/{{ gateway_config.subnet | ipaddr('prefix') }} dev ${BR_IF}
+
+# Bring everything up
+ip link set ${LAB_IF} up
+ip link set ${VXLAN_IF} up
+ip link set ${BR_IF} up