CI: Rework setup_disks.sh into Ansible role

Change-Id: Icd8648399a7d0a74419c80d573792397f971ff3c
Signed-off-by: Michal Nasiadka <mnasiadka@gmail.com>

2 files changed, 57 insertions, 0 deletions

diff --git a/roles/kolla-ansible-setup-disks/README.rst b/roles/kolla-ansible-setup-disks/README.rst
new file mode 100644
index 000000000..90bb4e92c
--- /dev/null
+++ b/roles/kolla-ansible-setup-disks/README.rst
@@ -0,0 +1,15 @@
+Prepare disks for Kolla-Ansible CI run.
+
+**Role Variables**
+
+.. zuul:rolevar:: kolla_ansible_setup_disks_filepath
+
+   Path to allocated file passed to loopmount
+
+.. zuul:rolevar:: kolla_ansible_setup_disks_lv_name
+
+   Logical volume name to create (skipped if not set)
+
+.. zuul:rolevar:: kolla_ansible_setup_disks_vg_name
+
+   Volume group name to create
diff --git a/roles/kolla-ansible-setup-disks/tasks/main.yml b/roles/kolla-ansible-setup-disks/tasks/main.yml
new file mode 100644
index 000000000..e4e25f736
--- /dev/null
+++ b/roles/kolla-ansible-setup-disks/tasks/main.yml
@@ -0,0 +1,42 @@
+---
+- name: Check if kolla_ansible_setup_disks_file_path is set
+  ansible.builtin.assert:
+    that: kolla_ansible_setup_disks_file_path is defined
+
+- name: Check if kolla_ansible_setup_disks_vg_name is set
+  ansible.builtin.assert:
+    that: kolla_ansible_setup_disks_vg_name is defined
+
+- name: Allocate file for disk backing
+  become: true
+  community.general.filesize:
+    path: "{{ kolla_ansible_setup_disks_file_path }}"
+    size: "{{ kolla_ansible_setup_disks_file_size | default('5G') }}"
+
+- name: Get free loop device
+  become: true
+  ansible.builtin.shell:
+    cmd: "losetup -f"
+  register: _loop_device
+
+- name: Mount file on loop device
+  become: true
+  ansible.builtin.shell:
+    cmd: >
+      losetup {{ _loop_device.stdout }}
+      {{ kolla_ansible_setup_disks_file_path }}
+
+- name: Create LVM extents on loop device
+  become: true
+  community.general.lvg:
+    vg: "{{ kolla_ansible_setup_disks_vg_name }}"
+    pvs: "{{ _loop_device.stdout }}"
+
+- name: Create LV
+  become: true
+  community.general.lvol:
+    vg: "{{ kolla_ansible_setup_disks_vg_name }}"
+    lv: "{{ kolla_ansible_setup_disks_lv_name }}"
+    size: "100%FREE"
+  when:
+    - kolla_ansible_setup_disks_lv_name is defined