bundles/basic: add links to icinga, grafana and nginx vhosts to login message

bundles/basic/files/motd

@@ -1 +0,0 @@
-This system is managed using bundlewrap.

bundles/basic/items.py

@@ -1,3 +1,8 @@
+from inspect import cleandoc
+from uuid import UUID
+
+from bundlewrap.utils.text import italic
+
 # TODO support non-systemd systems
 
 files = {
@@ -13,7 +18,9 @@ files = {
     '/etc/htoprc.global': {
         'source': 'htoprc',
     },
-    '/etc/motd': {},
+    '/etc/motd': {
+        'content': '',
+    },
 }
 
 locale_needs = set()
@@ -34,3 +41,50 @@ actions = {
         'command': 'locale-gen',
     },
 }
+
+description = []
+
+if not node.metadata.get('icinga_options/exclude_from_monitoring', False):
+    description.append('icingaweb2: https://icinga.kunsmann.eu/monitoring/host/show?host={}'.format(node.name))
+
+if node.has_bundle('telegraf'):
+    description.append('Grafana: https://grafana.kunsmann.eu/d/{}'.format(UUID(int=node.magic_number).hex[:10]))
+
+if (
+    not node.metadata.get('icinga_options/exclude_from_monitoring', False) or
+    node.has_bundle('telegraf')
+):
+    description.append('') # divider line
+
+if node.metadata.get('nginx/vhosts', {}):
+    description.append('nginx vhosts:')
+
+    for vname, vconfig in sorted(node.metadata.get('nginx/vhosts', {}).items()):
+        if vconfig.get('ssl', 'letsencrypt') is not None:
+            proto = 'https'
+        else:
+            proto = 'http'
+
+        domain = vconfig.get('domain', vname)
+
+        description.append('  {}: {}://{}{}'.format(
+            vname,
+            proto,
+            domain,
+            vconfig.get('website_check_path', '/'),
+        ))
+
+    if node.metadata.get('description', []):
+        description.append('') # divider line
+
+for line in node.metadata.get('description', []):
+    description.append('# {}'.format(italic(line)))
+
+if description:
+    files['/etc/node.description'] = {
+        'content': '\n'.join(description) + '\n',
+    }
+else:
+    files['/etc/node.description'] = {
+        'delete': True,
+    }

bundles/users/files/bashrc

@@ -21,6 +21,13 @@ case $TERM in
         ;;
 esac
 
+if [[ -f "/etc/node.description" ]]
+then
+    echo
+    cat "/etc/node.description"
+    echo
+fi
+
 uptime
 last | grep 'still logged in'