Merge branch 'fpy_lvm' into 'master'

Support for LVM

See merge request !8

README.rst

             device: /swapfile
             size: 1024
 
+LVM group `vg1` with one device and `data` volume mounted into `/mnt/data`
+
+.. code-block:: yaml
+
+    parameters:
+      linux:
+        storage:
+          mount:
+            data:
+              device: /dev/vg1/data
+              file_system: ext4
+              path: /mnt/data
+          lvm:
+            vg1:
+              enabled: true
+              devices:
+                - /dev/sdb
+              volume:
+                data:
+                  size: 40G
+                  mount: ${linux:storage:mount:data}
+
 Usage
 =====
 

linux/map.jinja

     'Arch': {
         'mount': {},
         'swap': {},
+        'lvm': {},
         'multipath': False,
     },
     'Debian': {
         'mount': {},
         'swap': {},
+        'lvm': {},
         'multipath': False,
         'multipath_pkgs': ['multipath-tools']
+        'lvm_pkgs': ['lvm2']
     },
     'RedHat': {
         'mount': {},
         'swap': {},
+        'lvm': {},
         'multipath': False,
     },
 }, grain='os_family', merge=salt['pillar.get']('linux:storage')) %}

linux/storage/init.sls

 {%- if storage.swap|length > 0 %}
 - linux.storage.swap
 {%- endif %}
+{%- if storage.lvm|length > 0 %}
+- linux.storage.lvm
+{%- endif %}
 {%- if storage.multipath %}
 - linux.storage.multipath
 {%- endif %}

linux/storage/lvm.sls

+{%- from "linux/map.jinja" import storage with context %}
+{%- if storage.enabled %}
+
+
+linux_lvm_pkgs:
+  pkg.installed:
+  - names: {{ storage.lvm_pkgs }}
+
+{%- for vgname, vg in storage.lvm.iteritems() %}
+
+{%- if vg.get('enabled', True) %}
+
+{%- for dev in vg.devices %}
+lvm_{{ vgname }}_pv_{{ dev }}:
+  lvm.pv_present:
+    - name: dev
+    - require:
+      - pkg: linux_lvm_pkgs
+    - require_in:
+      - lvm: lvm_vg_{{ vgname }}
+{%- endfor %}
+
+lvm_vg_{{ vgname }}:
+  lvm.vg_present:
+    - name: {{ vgname }}
+    - devices: {{ vg.devices }}
+
+{%- for lvname, volume in vg.volume.iteritems() %}
+
+lvm_{{ vgname }}_lv_{{ lvname }}:
+  lvm.lv_present:
+    - name: {{ lvname }}
+    - vgname: {{ vgname }}
+    - size: {{ volume.size }}
+    - require:
+      - lvm: lvm_vg_{{ vgname }}
+    {%- if volume.mount is defined %}
+    - require_in:
+      - mount: {{ volume.mount.path }}
+    {%- endif %}
+
+{%- endfor %}
+
+{%- endif %}
+
+{%- endfor %}
+
+{%- endif %}