Role for lvm-snapshots

lvm-snapshots/defaults/main.yml

+---
+# file: roles/lvm-snapshots/defaults/main.yml
+
+program_dir: /opt/lvm-snapshots
+snapshot_cron_minutes: 15
+snapshot_volumes:
+  - volume_group: exports
+    name: pub
+    path: .snapshots
+    keep:
+      - number: 4
+        interval: 15M
+      - number: 24
+        interval: 1H
+      - number: 31
+        interval: 1d
+      - number: 6
+        interval: 1m

lvm-snapshots/files/ssh-config.lvm-snapshots

+Host git.fsmpi.rwth-aachen.de
+HostName git.fsmpi.rwth-aachen.de
+User git
+IdentityFile lvm-snapshots.key

lvm-snapshots/tasks/main.yml

+---
+# file: roles/lvm-snapshots/tasks/main.yml
+
+- name: ensure we have the target folder
+  file: path="{{program_dir}}" state=directory owner=root group=root mode=0755
+  tags:
+    - lvm-snapshots
+    - directory
+
+- name: ensure we know our deploy key
+  local_action: pass name="deploy-key/lvm-snapshots" state=present store=FSMPI_PASSWORD_STORE_DIR limit=no
+  register: deploy_key
+  no_log: True
+  tags:
+    - lvm-snapshots
+    - password
+
+- name: ensure we know our public deploy key
+  local_action: pass name="deploy-key/lvm-snapshots-public" state=present store=FSMPI_PASSWORD_STORE_DIR limit=no
+  register: deploy_key_public
+  no_log: True
+  tags:
+    - lvm-snapshots
+    - password
+
+- name: ensure our deploy key is present
+  copy:
+    content: "{{deploy_key.password}}\n"
+    dest: /root/.ssh/lvm-snapshots.key
+    owner: root
+    group: root
+    mode: 0600
+  no_log: True
+  tags:
+    - lvm-snapshots
+    - ssh
+
+- name: ensure our public deploy key is present
+  copy:
+    content: "{{deploy_key_public.password}}\n"
+    dest: /root/.ssh/lvm-snapshots.pub
+    owner: root
+    group: root
+    mode: 0644
+  no_log: True
+  tags:
+    - lvm-snapshots
+    - ssh
+
+- name: ensure we have our lvm-snapshots ssh config
+  copy:
+    src: ssh-config.lvm-snapshots
+    dest: /root/.ssh/config.lvm-snapshots
+    owner: root
+    group: root
+    mode: 0644
+  tags:
+    - lvm-snapshots
+    - ssh
+    - config
+
+- name: ensure our lvm-snapshots ssh config is included
+  lineinfile:
+    dest: /root/.ssh/config
+    line: "Include config.lvm-snapshots"
+    create: yes
+    owner: root
+    group: root
+    mode: 0644
+  tags:
+    - lvm-snapshots
+    - ssh
+    - config
+
+- name: ensure we have the program
+  git:
+    repo: git@git.fsmpi.rwth-aachen.de:infra/lvm-snapshots.git
+    dest: "{{program_dir}}"
+  tags:
+    - git
+    - lvm-snapshots
+
+- name: ensure the necessary programs are installed
+  apt: name="{{item}}" state=present
+  with_items:
+    - python3
+    - virtualenv
+  tags:
+    - packages
+    - lvm-snapshots
+
+- name: ensure we have a virtualenv
+  pip:
+    requirements: "{{program_dir}}/requirements.txt"
+    virtualenv: "{{program_dir}}"
+    virtualenv_python: python3
+  tags:
+    - pip
+    - python
+    - lvm-snapshots
+
+- name: ensure we have a frontend script
+  template:
+    src: script.sh
+    dest: /usr/local/sbin/lvm-snapshots
+    owner: root
+    group: root
+    mode: 0755
+  tags:
+    - lvm-snapshots
+    - config
+
+- name: ensure we have our config
+  template:
+    src: config.toml
+    dest: /etc/lvm-snapshots.toml
+    owner: root
+    group: root
+    mode: 0644
+  tags:
+    - lvm-snapshots
+    - config
+
+- name: ensure we have a cron job
+  cron:
+    name: "lvm-snapshots"
+    minute: "*/{{snapshot_cron_minutes}}"
+    job: "/usr/local/sbin/lvm-snapshots update"
+  tags:
+    - lvm-snapshots
+    - cron

lvm-snapshots/templates/config.toml

+{% for volume in snapshot_volumes %}
+[[volume]]
+    volume_group = "{{volume.volume_group}}"
+    name = "{{volume.name}}"
+    path = "{{volume.path}}"
+    {% for keep in volume.keep %}
+
+    [[volume.keep]]
+        number = {{keep.number}}
+        interval = "{{keep.interval}}"
+    {% endfor %}
+
+{% endfor %}

lvm-snapshots/templates/script.sh

+#!/bin/bash
+{{program_dir}}/bin/python {{program_dir}}/lvmsnapshot.py "$@"
+exit $?