ansible/debian-installer: Update Ubuntu definition

- Switch to Bionic (18.04 LTS) instead of Xenial (16.04 LTS)
- Use debian.ffgraz.net as the mirror, over HTTPS

diff --git a/ansible/roles/debian-installer/defaults/main.yml b/ansible/roles/debian-installer/defaults/main.yml
index 9604fa1..ce56a74 100644 (file)
--- a/ansible/roles/debian-installer/defaults/main.yml
+++ b/ansible/roles/debian-installer/defaults/main.yml
@@ -6,8 +6,9 @@ distros:
     arch:
       - amd64
       - i386
+
   - distro: ubuntu
-    codename: xenial
+    codename: bionic
     arch:
       - amd64
       - i386
@@ -16,4 +17,4 @@ debian_installer_force_download: no
 
 debian_installer_url:
   debian: "https://debian.ffgraz.net/debian"
-  ubuntu: "http://ubuntu.uni-klu.ac.at/ubuntu"
+  ubuntu: "https://debian.ffgraz.net/ubuntu"