Configure preference of ip family (ipv4 > ipv6)

13 files changed, 25 insertions, 0 deletions

diff --git a/host_vars/desktop.local.yml b/host_vars/desktop.local.yml
index 53939d8a..d0f802ae 100644
--- a/host_vars/desktop.local.yml
+++ b/host_vars/desktop.local.yml
diff --git a/host_vars/desktop.local.yml.example b/host_vars/desktop.local.yml.example
index d24dcff2..c8dd0be1 100644
--- a/host_vars/desktop.local.yml.example
+++ b/host_vars/desktop.local.yml.example
@@ -3,6 +3,7 @@
 network_ipv4_address: "10.0.0.201"
 network_ipv4_gateway: "10.0.0.254"
 network_ipv4_dns: "10.0.0.254"
+network_prefer_ipv4: true
 # Discover network_ipv6_gateway with: ip -6 route show default | grep ra (run on any device before disabling router RA)
 # network_ipv6_gateway: "fe80::0000:1111:2222:3333"
 
diff --git a/host_vars/laptop.local.yml b/host_vars/laptop.local.yml
index 21e21e28..9c4c8798 100644
--- a/host_vars/laptop.local.yml
+++ b/host_vars/laptop.local.yml
diff --git a/host_vars/laptop.local.yml.example b/host_vars/laptop.local.yml.example
index ba9536da..726fc4b1 100644
--- a/host_vars/laptop.local.yml.example
+++ b/host_vars/laptop.local.yml.example
@@ -3,6 +3,7 @@
 network_ipv4_address: "10.0.0.202"
 network_ipv4_gateway: "10.0.0.1"
 network_ipv4_dns: "10.0.0.1"
+network_prefer_ipv4: true
 # Discover network_ipv6_gateway with: ip -6 route show default | grep ra (run on any device before disabling router RA)
 # network_ipv6_gateway: "fe80::0000:1111:2222:3333"
 
diff --git a/host_vars/macbook.local.yml b/host_vars/macbook.local.yml
index b9a4e517..5ad4be8b 100644
--- a/host_vars/macbook.local.yml
+++ b/host_vars/macbook.local.yml
diff --git a/host_vars/macbook.local.yml.example b/host_vars/macbook.local.yml.example
index c20ce1da..a4f87605 100644
--- a/host_vars/macbook.local.yml.example
+++ b/host_vars/macbook.local.yml.example
@@ -3,6 +3,7 @@
 network_ipv4_address: "10.0.0.203"
 network_ipv4_gateway: "10.0.0.254"
 network_ipv4_dns: "10.0.0.254"
+network_prefer_ipv4: true
 # Discover network_ipv6_gateway with: ip -6 route show default | grep ra (run on any device before disabling router RA)
 # network_ipv6_gateway: "fe80::0000:1111:2222:3333"
 
diff --git a/host_vars/pve.local.yml b/host_vars/pve.local.yml
index 8f2a6a54..90730264 100644
--- a/host_vars/pve.local.yml
+++ b/host_vars/pve.local.yml
diff --git a/host_vars/pve.local.yml.example b/host_vars/pve.local.yml.example
index 60b6060c..07a002a3 100644
--- a/host_vars/pve.local.yml.example
+++ b/host_vars/pve.local.yml.example
@@ -5,6 +5,7 @@ network_wifi_pass: ""
 network_ipv4_address: "10.0.0.253"
 network_ipv4_gateway: "10.0.0.254"
 network_ipv4_dns: "10.0.0.254"
+network_prefer_ipv4: true
 network_bridge_interface: "eth0"
 # Discover network_ipv6_gateway with: ip -6 route show default | grep ra (run on any device before disabling router RA)
 # network_ipv6_gateway: "fe80::0000:1111:2222:3333"
diff --git a/host_vars/rpi5.local.yml b/host_vars/rpi5.local.yml
index 27388c7d..83025ca6 100644
--- a/host_vars/rpi5.local.yml
+++ b/host_vars/rpi5.local.yml
diff --git a/host_vars/rpi5.local.yml.example b/host_vars/rpi5.local.yml.example
index 281bc3a3..d528e4a5 100644
--- a/host_vars/rpi5.local.yml.example
+++ b/host_vars/rpi5.local.yml.example
@@ -2,6 +2,7 @@
 network_interface: "eth0"
 network_ipv4_address: "10.0.0.254"
 network_ipv4_gateway: "10.0.0.1"
+network_prefer_ipv4: false
 # Discover network_ipv6_gateway with: ip -6 route show default | grep ra (run on any device before disabling router RA)
 # network_ipv6_gateway: "fe80::0000:1111:2222:3333"
 
diff --git a/roles/network/defaults/main.yml b/roles/network/defaults/main.yml
index 5e1076a7..9497f83f 100644
--- a/roles/network/defaults/main.yml
+++ b/roles/network/defaults/main.yml
@@ -1,3 +1,4 @@
 ---
 network_wifi_ssid: ""
 network_wifi_pass: ""
+network_prefer_ipv4: false
diff --git a/roles/network/tasks/main.yml b/roles/network/tasks/main.yml
index 3bd85040..f8873379 100644
--- a/roles/network/tasks/main.yml
+++ b/roles/network/tasks/main.yml
@@ -59,6 +59,15 @@
   changed_when: false
   when: network_wifi_ssid != ""
 
+- name: "Configure address family preference"
+  become: true
+  ansible.builtin.template:
+    src: "gai.conf.j2"
+    dest: "/etc/gai.conf"
+    owner: "root"
+    group: "root"
+    mode: "0644"
+
 - name: "Configure NetworkManager"
   become: true
   notify:
diff --git a/roles/network/templates/gai.conf.j2 b/roles/network/templates/gai.conf.j2
new file mode 100644
index 00000000..21c17332
--- /dev/null
+++ b/roles/network/templates/gai.conf.j2
@@ -0,0 +1,10 @@
+# Managed by Ansible — controls getaddrinfo address family preference
+{% if network_prefer_ipv4 %}
+precedence ::ffff:0:0/96  100
+{% else %}
+precedence ::1/128         50
+precedence ::/0            40
+precedence 2002::/16       30
+precedence ::/96           20
+precedence ::ffff:0:0/96   10
+{% endif %}