From dfcfbc1f3fd6e1ce19909f0d9c863f9ae430f948 Mon Sep 17 00:00:00 2001
From: Timothy Stewart <timothystewart6@gmail.com>
Date: Sat, 1 Aug 2026 15:41:01 -0500
Subject: [PATCH] fix(molecule): select distro-specific private interfaces

- Use eth1 for Ubuntu and Debian Bento guests when present.
- Keep enp0s8 for Rocky Linux guests and other images.
- Apply the selection consistently across all Molecule scenarios.
---
 molecule/calico/overrides.yml      | 4 ++--
 molecule/cilium/overrides.yml      | 4 ++--
 molecule/default/overrides.yml     | 4 ++--
 molecule/ipv6/overrides.yml        | 4 ++--
 molecule/kube-vip/overrides.yml    | 4 ++--
 molecule/single_node/overrides.yml | 4 ++--
 6 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/molecule/calico/overrides.yml b/molecule/calico/overrides.yml
index 0b27e47c..4f568902 100644
--- a/molecule/calico/overrides.yml
+++ b/molecule/calico/overrides.yml
@@ -6,8 +6,8 @@
       ansible.builtin.set_fact:
         # See:
         # https://github.com/flannel-io/flannel/blob/67d603aaf45ef80f5dd39f43714fc5e6f8a637eb/Documentation/troubleshooting.md#Vagrant
-        calico_iface: enp0s8
-        kube_vip_iface: enp0s8
+        calico_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
+        kube_vip_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
 
         # The test VMs might be a bit slow, so we give them more time to join the cluster:
         retry_count: 45
diff --git a/molecule/cilium/overrides.yml b/molecule/cilium/overrides.yml
index 22fdf9db..9ef8a576 100644
--- a/molecule/cilium/overrides.yml
+++ b/molecule/cilium/overrides.yml
@@ -6,8 +6,8 @@
       ansible.builtin.set_fact:
         # See:
         # https://github.com/flannel-io/flannel/blob/67d603aaf45ef80f5dd39f43714fc5e6f8a637eb/Documentation/troubleshooting.md#Vagrant
-        cilium_iface: enp0s8
-        kube_vip_iface: enp0s8
+        cilium_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
+        kube_vip_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
 
         # The test VMs might be a bit slow, so we give them more time to join the cluster:
         retry_count: 45
diff --git a/molecule/default/overrides.yml b/molecule/default/overrides.yml
index f7484e49..77cb73ed 100644
--- a/molecule/default/overrides.yml
+++ b/molecule/default/overrides.yml
@@ -6,10 +6,10 @@
       ansible.builtin.set_fact:
         # See:
         # https://github.com/flannel-io/flannel/blob/67d603aaf45ef80f5dd39f43714fc5e6f8a637eb/Documentation/troubleshooting.md#Vagrant
-        flannel_iface: enp0s8
+        flannel_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
         # kube-vip cannot infer the cluster interface in these multi-NIC
         # Vagrant guests because the default route is on eth0.
-        kube_vip_iface: enp0s8
+        kube_vip_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
 
         # The test VMs might be a bit slow, so we give them more time to join the cluster:
         retry_count: 45
diff --git a/molecule/ipv6/overrides.yml b/molecule/ipv6/overrides.yml
index 3e9aa31b..a73333bf 100644
--- a/molecule/ipv6/overrides.yml
+++ b/molecule/ipv6/overrides.yml
@@ -6,12 +6,12 @@
       ansible.builtin.set_fact:
         # See:
         # https://github.com/flannel-io/flannel/blob/67d603aaf45ef80f5dd39f43714fc5e6f8a637eb/Documentation/troubleshooting.md#Vagrant
-        flannel_iface: enp0s8
+        flannel_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
 
         # In this scenario, we have multiple interfaces that the VIP could be
         # broadcasted on. Since we have assigned a dedicated private network
         # here, let's make sure that it is used.
-        kube_vip_iface: enp0s8
+        kube_vip_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
 
         # The test VMs might be a bit slow, so we give them more time to join the cluster:
         retry_count: 45
diff --git a/molecule/kube-vip/overrides.yml b/molecule/kube-vip/overrides.yml
index 11908018..cdfa0902 100644
--- a/molecule/kube-vip/overrides.yml
+++ b/molecule/kube-vip/overrides.yml
@@ -6,8 +6,8 @@
       ansible.builtin.set_fact:
         # See:
         # https://github.com/flannel-io/flannel/blob/67d603aaf45ef80f5dd39f43714fc5e6f8a637eb/Documentation/troubleshooting.md#Vagrant
-        flannel_iface: enp0s8
-        kube_vip_iface: enp0s8
+        flannel_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
+        kube_vip_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
 
         # The test VMs might be a bit slow, so we give them more time to join the cluster:
         retry_count: 45
diff --git a/molecule/single_node/overrides.yml b/molecule/single_node/overrides.yml
index fe6bbfdb..17857be5 100644
--- a/molecule/single_node/overrides.yml
+++ b/molecule/single_node/overrides.yml
@@ -6,8 +6,8 @@
       ansible.builtin.set_fact:
         # See:
         # https://github.com/flannel-io/flannel/blob/67d603aaf45ef80f5dd39f43714fc5e6f8a637eb/Documentation/troubleshooting.md#Vagrant
-        flannel_iface: enp0s8
-        kube_vip_iface: enp0s8
+        flannel_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
+        kube_vip_iface: "{{ 'eth1' if 'eth1' in ansible_facts.interfaces else 'enp0s8' }}"
 
         # The test VMs might be a bit slow, so we give them more time to join the cluster:
         retry_count: 45