banner: T6077: implement ASCII contest winner default logo

Implement VyOS ASCII art contest winners logo as the default for our MOTD

(cherry picked from commit 0ea3a454cf560171d3eb9d4d1b97b172c06360fe)

2 files changed, 25 insertions, 11 deletions

diff --git a/data/templates/login/default_motd.j2 b/data/templates/login/default_motd.j2
new file mode 100644
index 000000000..8584d261a
--- /dev/null
+++ b/data/templates/login/default_motd.j2
@@ -0,0 +1,14 @@
+Welcome to VyOS!
+
+   ┌── ┐
+   . VyOS {{ version_data.version }}
+   └ ──┘  {{ version_data.release_train }}
+
+ * Documentation:  https://docs.vyos.io/en/{{ version_data.release_train | replace('current', 'latest') }}
+ * Project news:   https://blog.vyos.io
+ * Bug reports:    https://vyos.dev
+
+You can change this banner using "set system login banner post-login" command.
+
+VyOS is a free software distribution that includes multiple components,
+you can check individual component licenses under /usr/share/doc/*/copyright
diff --git a/src/conf_mode/system_login_banner.py b/src/conf_mode/system_login_banner.py
index 65fa04417..923e1bf57 100755
--- a/src/conf_mode/system_login_banner.py
+++ b/src/conf_mode/system_login_banner.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2020-2021 VyOS maintainers and contributors
+# Copyright (C) 2020-2024 VyOS maintainers and contributors
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 2 or later as
@@ -18,30 +18,26 @@ from sys import exit
 from copy import deepcopy
 
 from vyos.config import Config
+from vyos.template import render
 from vyos.utils.file import write_file
+from vyos.version import get_version_data
 from vyos import ConfigError
 from vyos import airbag
 airbag.enable()
 
-try:
-    with open('/usr/share/vyos/default_motd') as f:
-        motd = f.read()
-except:
-    # Use an empty banner if the default banner file cannot be read
-    motd = "\n"
-
 PRELOGIN_FILE = r'/etc/issue'
 PRELOGIN_NET_FILE = r'/etc/issue.net'
 POSTLOGIN_FILE = r'/etc/motd'
 
 default_config_data = {
     'issue': 'Welcome to VyOS - \\n \\l\n\n',
-    'issue_net': '',
-    'motd': motd
+    'issue_net': ''
 }
 
 def get_config(config=None):
     banner = deepcopy(default_config_data)
+    banner['version_data'] = get_version_data()
+
     if config:
         conf = config
     else:
@@ -92,7 +88,11 @@ def generate(banner):
 def apply(banner):
     write_file(PRELOGIN_FILE, banner['issue'])
     write_file(PRELOGIN_NET_FILE, banner['issue_net'])
-    write_file(POSTLOGIN_FILE, banner['motd'])
+    if 'motd' in banner:
+        write_file(POSTLOGIN_FILE, banner['motd'])
+    else:
+        render(POSTLOGIN_FILE, 'login/default_motd.j2', banner,
+            permission=0o644, user='root', group='root')
 
     return None