Re-add os-release - set os_family grain to Alpine

system/base.sls

@@ -26,6 +26,17 @@ system_base_apps_dir:
     - dir_mode: '0755'
     - file_mode: '0644'
 
+system_base_os-release:
+  file.managed:
+    - name: /etc/os-release
+    - source: salt://{{ tpldir }}/files/base_os-release.jinja
+    - template: jinja
+    - context:
+        OS_VERSION: {{ salt['cmd.shell']('date "+%Y%m"') }}
+    - user: root
+    - group: root
+    - mode: '0644'
+
 system_base_motd:
   file.managed:
     - name: /etc/motd