bundles/{systemd,hostname}: add hostname control

bundles/hostname/files/hosts

@@ -0,0 +1,8 @@
+127.0.0.1   localhost localhost.localdomain ${node.hostname}
+
+::1         ip6-localhost
+fe00::0     ip6-localnet
+ff00::0     ip6-mcastprefix
+ff02::1     ip6-allnodes
+ff02::2     ip6-allrouters
+ff02::3     ip6-allhosts

bundles/hostname/items.py

@@ -0,0 +1,7 @@
+# TODO support non-systemd systems
+
+files = {
+    '/etc/hosts': {
+        'content_type': 'mako',
+    },
+}

bundles/systemd/items.py

@@ -3,5 +3,16 @@ actions = {
         'command': '/usr/bin/systemctl daemon-reload',
         'cascade_skip': False,
         'triggered': True,
+        'needed_by': {
+            'svc_systemd:',
+        },
+    },
+    'systemd-hostname': {
+        'command': 'hostnamectl set-hostname {}'.format(node.hostname),
+        'unless': '[ "$(hostnamectl --static)" = "{}" ]'.format(node.hostname),
+        # Provided by 'hostname' bundle
+        'needs': {
+            'file:/etc/hosts',
+        },
     },
 }

bundles/voc-loudness-monitor/items.py

@@ -69,7 +69,6 @@ for stream_id, config in streams.items():
     svc_systemd['loudness_{}'.format(stream_id)] = {
         'needs': {
             'file:/etc/systemd/system/loudness_{}.service'.format(stream_id),
-            'action:systemd-reload',
         },
         # These units are designed to fail if the assigned stream fails. No need
         # to restart them on every bw run.

groups/all.py

@@ -4,7 +4,9 @@ groups['all'] = {
     ),
     'bundles': {
         'apt',
+        'hostname',
         'sudo',
+        'systemd',
         'users',
     },
     'metadata': {

nodes/htz/ex42-1048908.py

@@ -2,7 +2,6 @@ nodes['htz.ex42-1048908'] = {
     'bundles': [
         'nginx',
         'riot-web',
-        'systemd',
         'vmhost',
         'voc-loudness-monitor',
     ],