Add empty salt.common SLS

Roles under salt/ are enforced to be existent - adding "empty" file to
match pillar/role/salt/.

Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>

bin/clone_formulas.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+set -Ceu
+
+FORMULASDIR='/srv/formulas'
+
+if [ ! -d "$FORMULASDIR" ]
+then
+        git clone --recurse-submodules --single-branch -b production https://git.com.de/LibertaCasa/salt-formulas.git "$FORMULASDIR"
+        exit "$?"
+fi
+
+git -C "$FORMULASDIR" pull --recurse-submodules

bin/prepare_minion.py

@@ -9,6 +9,7 @@ import socket
 roles = roles.get()
 grainsfile = '/etc/salt/grains'
 idfile = 'pillar/id/' + socket.gethostname() + '.sls'
+configfile = '/etc/salt/minion.d/local.conf'
 mypwd = os.getcwd()
 
 grainsdata = {'roles': roles}
@@ -19,5 +20,13 @@ with open(grainsfile, mode='w') as grainsfh:
 with open(idfile, mode='w') as idfh:
 	idfh.write('# empty')
 
+with open(configfile, mode='w') as configfh:
+    configfh.write('''# written by prepare_minion.py
+file_roots:
+  production:
+    - /srv/salt
+    - /srv/formulas/salt-formula
+''')
+
 os.symlink(mypwd + '/salt', '/srv/salt')
 os.symlink(mypwd + '/pillar', '/srv/pillar')

salt/role/salt/common.sls

@@ -0,0 +1 @@
+# empty