Merge pull request #2 from SeqWare/feature/lvm

Feature/lvm

README.md

@@ -2,6 +2,13 @@
 
 This project consists of a set of Ansible playbooks that allow you to deploy a SeqWare cluster. Metadata makes the Playbooks compatible with [CloudBindle](https://github.com/CloudBindle/Bindle) allowing you to deploy to Amazon-AWS, VirtualBox, Openstack, and vCloud. 
 
+## Dependencies
+
+Unfortunately, while tested against ansible 1.6.10, lvm functionality requires a patch from ansible develop that can be applied on ubuntu as follows. 
+
+        wget https://raw.githubusercontent.com/ansible/ansible-modules-extras/devel/system/lvg.py
+        sudo cp lvg.py /usr/share/ansible/system/lvg
+
 ## Sample Configuration Files
 
 ### Updated for Bindle 2

roles/storage/common/tasks/play_deploy_shared_storage.yml

@@ -4,25 +4,25 @@
   sudo: True
   tasks:
     - { include_vars: "../../vars/main.yml" }
-    - { include: "../../{{shared_storage_system}}/tasks/install.yml", when: not single_node }
+    - { include: "../../{{shared_storage_system}}/tasks/install.yml", when: not single_node}
 
 ### Storage - second step, configure and start the master
 - hosts: master
   sudo: True
   tasks:
     - { include_vars: "../../vars/main.yml" }
-    - { include: "../../{{shared_storage_system}}/tasks/start.yml", when: not single_node }
+    - { include: "../../{{shared_storage_system}}/tasks/start.yml", when: not single_node}
 
 ### Storage - third step, configure and start the data servers
 - hosts: worker
   sudo: True
   tasks:
     - { include_vars: "../../vars/main.yml" }
-    - { include: "../../{{shared_storage_system}}/tasks/connect.yml", when: not single_node }
+    - { include: "../../{{shared_storage_system}}/tasks/connect.yml", when: not single_node}
 
 ### Storage - fourth step, mount directories where needed
 - hosts: all 
   sudo: True
   tasks:
     - { include_vars: "../../vars/main.yml" }
-    - { include: "../../{{shared_storage_system}}/tasks/mount.yml", when: not single_node }
+    - { include: "../../{{shared_storage_system}}/tasks/mount.yml", when: not single_node}

roles/storage/lvm/README.md

@@ -0,0 +1,4 @@
+LVM
+-----
+
+Not technically a shared filesystem, but might be useful to have in seqware-bag

roles/storage/lvm/tasks/connect.yml

@@ -0,0 +1 @@
+---

roles/storage/lvm/tasks/install.yml

@@ -0,0 +1,20 @@
+---
+# file: roles/storage/lvm/tasks/install.yml
+# These tasks are run on all nodes
+
+- name: Ensure required packages are installed
+  apt: pkg={{ item }} state=latest cache_valid_time=86400 update_cache=yes
+  with_items:
+   - lvm2
+   - parted
+   - xfsprogs
+
+- name: Storage | Create a volume group white listed devices
+  lvg: vg=volume_group pvs={{ lvm_device_whitelist }} state=present vg_options=
+
+- name: Storage | Create logical volume
+  lvol: vg=volume_group lv=logical_volume state=present  size=100%FREE
+
+- name: Storage | Create file system
+  filesystem: dev=/dev/volume_group/logical_volume  fstype={{ brick_file_system }}
+

roles/storage/lvm/tasks/mount.yml

@@ -0,0 +1,5 @@
+---
+# file: roles/storage/lvm/tasks/mount.yml
+
+- name: Storage | Mount lvm volume
+  mount: name={{ vendor_data }} src=/dev/volume_group/logical_volume fstype={{ brick_file_system }} opts=rw,noauto state=mounted

roles/storage/lvm/tasks/start.yml

@@ -0,0 +1,4 @@
+---
+# file: roles/lvm/tasks/glusterfs_start.yml
+
+

roles/storage/lvm/vars/main.yml

@@ -0,0 +1,2 @@
+---
+lvm_device_whitelist: '/dev/xvdd,/dev/xvde'

seqware-install.yml

@@ -19,14 +19,27 @@
     template: src=roles/common/templates/dhclient.conf dest=/etc/dhcp/dhclient.conf
   - name: Disable setting hostname from /etc/hostname on Amazon EC2
     template: src=roles/common/templates/hostname.conf dest=/etc/init/hostname.conf
+  - name: Disable ephemeral mount at /mnt for amazon AWS
+    shell: umount /mnt
+    register: umount_output
+    ignore_errors: yes
 
   # This is a super-fugly way of determining the number of hosts in total, Ansible bug referenced
 - hosts: all
   sudo: True
   tasks:
   - name: Determine number of hosts in fugly way 
     include: roles/common/tasks/determine_num_hosts.yml
-
+
+- hosts: all
+  sudo: True
+  vars:
+      shared_storage_system: lvm
+      vendor_data: /mnt/seqware-oozie
+      lvm_device_whitelist: /dev/xvdd,/dev/xvde
+  include: roles/storage/common/tasks/play_deploy_shared_storage.yml
+  when: single_node_lvm is defined
+
 - hosts: all
   sudo: True
   vars: