Add NVMe role

Author: assumptionsandg

ansible/roles/linux-common/tasks/main.yml

@@ -19,6 +19,9 @@
 - include_role:
     name: linux-volumes-by-tag
 
+- include_role:
+    name: linux-nvme
+
 - name: Load relevant kernel modules
   template:
     src: modules.conf.j2

ansible/roles/linux-nvme/files/nvme-configure-lvm.yml

@@ -0,0 +1,27 @@
+---
+
+- name: Set LVM configuration
+  set_fact:
+    lvm_groups:
+      - vgname: lvm-nvme
+        disks: "{{ devices | map('regex_replace', '^', '/dev/') }}"
+        create: true
+        lvnames:
+          - lvname: primary
+            size: 100%FREE
+            opts: --type raid0
+            create: true
+            filesystem: ext4
+            mount: true
+            mntp: /mnt/nvme
+
+- name: Ensure LVM configuration is applied
+  vars:
+    manage_lvm: True
+  include_role:
+    name: mrlesmithjr.manage_lvm
+    apply:
+      become: True
+  when:
+    - lvm_groups is defined
+    - lvm_groups | length > 0

ansible/roles/linux-nvme/files/nvme-playbook.yml

@@ -0,0 +1,26 @@
+---
+
+- hosts: localhost
+  gather_facts: true
+  become: true
+  vars:
+    openstack_metadata: "{{ (lookup('url', 'http://169.254.169.254/openstack/latest/meta_data.json') | from_json).get('meta', {}) }}"
+  tasks:
+    - name: Process openstack metadata
+      set_fact:
+        devices: "{{ openstack_metadata.lvm_disk_nvme | split(',') | map('trim') | list }}"
+      when: openstack_metadata.lvm_disk_nvme is defined
+
+    - name: Check if devices exist
+      assert:
+        that: "item in ansible_devices"
+      register: device_list
+      failed_when: false
+      with_items: "{{ devices }}"
+      when: openstack_metadata.lvm_disk_nvme is defined
+
+    - name: Configure LVM filesystem
+      include_tasks: /etc/ansible-init/includes/nvme-configure-lvm.yml
+      when:
+        - openstack_metadata.lvm_disk_nvme is defined
+        - "'Assertion failed' not in device_list.results | map(attribute='msg')"

ansible/roles/linux-nvme/tasks/main.yml

@@ -0,0 +1,22 @@
+---
+
+- name: Ensure ansible-init directories exist
+  file:
+    path: "/etc/ansible-init/{{ item }}"
+    state: directory
+  loop:
+    - includes
+    - playbooks
+
+- name: Install task includes
+  copy:
+    src: "{{ item }}"
+    dest: /etc/ansible-init/includes/{{ item }}
+  loop:
+    - nvme-configure-lvm.yml
+
+- name: Install ansible-init playbook
+  copy:
+    src: nvme-playbook.yml
+    # Leave some numbers for playbooks to execute before
+    dest: /etc/ansible-init/playbooks/10-nvme.yml

requirements.yml

@@ -22,3 +22,5 @@ roles:
   - src: https://github.com/stackhpc/ansible-role-os-manila-mount.git
     name: stackhpc.os-manila-mount
     version: v24.5.0
+  - src: mrlesmithjr.manage_lvm
+    version: v0.2.8