ospack: Disable fqdn resolution for sudo

When opening a new session sudo tries to resolve the fqdn of the host, but that
introduces a sensible delay if the host does not have a fqdn set up
appropriately, as it is often the case with development board or when booting
images in QEMU.

We currently also ship libnss-myhostname which in theory could solve the issue
at the system level and not just for sudo, but upstream configures it to come
*after* dns resolution to avoid breaking `hostname --fqdn`, see
https://github.com/systemd/systemd/issues/1280



Our use-case is sligthly different and we may configure libnss-myhostname to
precede dns resolution, but in the meantime keep disabling this in sudo as the
apertis-customization package used to do.

Signed-off-by: Emanuele Aina <emanuele.aina@collabora.com>

apertis-ospack-basesdk.yaml

@@ -475,6 +475,9 @@ actions:
   - action: overlay
     source: overlays/create-homedir
 
+  - action: overlay
+    source: overlays/sudo-fqdn
+
   - action: overlay
     source: overlays/default-locale-c-utf8
 

apertis-ospack-devroot.yaml

@@ -377,6 +377,9 @@ actions:
   - action: overlay
     source: overlays/create-homedir
 
+  - action: overlay
+    source: overlays/sudo-fqdn
+
   - action: overlay
     source: overlays/default-locale-c-utf8
 

apertis-ospack-minimal.yaml

@@ -97,6 +97,9 @@ actions:
   - action: overlay
     source: overlays/create-homedir
 
+  - action: overlay
+    source: overlays/sudo-fqdn
+
   - action: overlay
     source: overlays/default-locale-c-utf8
 

apertis-ospack-sdk.yaml

@@ -673,6 +673,9 @@ actions:
   - action: overlay
     source: overlays/create-homedir
 
+  - action: overlay
+    source: overlays/sudo-fqdn
+
   - action: overlay
     source: overlays/default-locale-c-utf8
 

apertis-ospack-target.yaml

@@ -210,6 +210,9 @@ actions:
   - action: overlay
     source: overlays/create-homedir
 
+  - action: overlay
+    source: overlays/sudo-fqdn
+
   - action: overlay
     source: overlays/default-locale-c-utf8
 

overlays/sudo-fqdn/etc/sudoers.d/disable-fqdn

+# FQDN lookup is painfully slow if the DNS server is misconfigured.
+# Use gethostname() instead.
+Defaults !fqdn