Add role cephfs-mount with prerequisites

Vagrantfile

@@ -48,4 +48,10 @@ Vagrant.configure("2") do |config|
     end
   end
 
+  config.vm.define "cephfs-client" do |guest|
+    guest.vm.box = "generic/ubuntu2204"
+    guest.vm.hostname = "cephfs-client"
+    guest.vm.network "private_network", ip: "10.0.0.31"
+  end
+
 end

inventory/hosts

@@ -4,6 +4,7 @@ ceph-mon-03 remote_user=vagrant
 ceph-osd-01 remote_user=vagrant
 ceph-osd-02 remote_user=vagrant
 ceph-osd-03 remote_user=vagrant
+cephfs-client remote_user=vagrant
 
 [mons]
 ceph-mon-01

playbook.yml

@@ -51,3 +51,12 @@
     - role: cephfs
       vars:
         fs_name: cephfs
+
+- name: Mount CephFS filesystem on a client
+  tags: mount
+  hosts: cephfs-client
+  roles:
+    - role: cephfs-mount
+      vars:
+        fs_name: cephfs
+        fs_user: cephfs

roles/cephfs-mount/defaults/main.yml

@@ -0,0 +1,4 @@
+---
+
+fs_name: cephfs
+fs_user: cephfs

roles/cephfs-mount/handlers/main.yml

@@ -0,0 +1,13 @@
+---
+
+- name: Add new line to ceph conf
+  become: true
+  ansible.builtin.shell:
+    cmd: echo >> /etc/ceph/ceph.conf
+  changed_when: true
+
+- name: Add new line to cephfs client keyring
+  become: true
+  ansible.builtin.shell:
+    cmd: "echo >> /etc/ceph/ceph.client.{{ fs_user }}.keyring"
+  changed_when: true

roles/cephfs-mount/tasks/main.yml

@@ -0,0 +1,66 @@
+---
+
+- name: Create ceph config directory
+  become: true
+  ansible.builtin.file:
+    path: /etc/ceph
+    state: directory
+    owner: root
+    group: root
+    mode: "755"
+
+- name: Generate minimal ceph configuration
+  delegate_to: ceph-mon-01
+  become: true
+  ansible.builtin.command:
+    cmd: ceph config generate-minimal-conf
+  register: ceph_minimal_conf
+  changed_when: false
+
+- name: Write minimal ceph config
+  become: true
+  ansible.builtin.copy:
+    content: "{{ ceph_minimal_conf.stdout }}"
+    dest: /etc/ceph/ceph.conf
+    owner: root
+    group: root
+    mode: "644"
+  notify: Add new line to ceph conf
+
+- name: Create CephX user and get its key
+  delegate_to: ceph-mon-01
+  become: true
+  ansible.builtin.command:
+    cmd: "sudo ceph fs authorize {{ fs_name }} client.{{ fs_user }} / rw"
+  register: cephfs_user_keyring
+  changed_when: false
+
+- name: Write CephX user's key
+  become: true
+  ansible.builtin.copy:
+    content: "{{ cephfs_user_keyring.stdout }}"
+    dest: /etc/ceph/ceph.client.{{ fs_user }}.keyring
+    owner: root
+    group: root
+    mode: "600"
+  notify: Add new line to cephfs client keyring
+
+- name: Make sure files are correctly formed
+  ansible.builtin.meta: flush_handlers
+
+- name: Create mount directory
+  become: true
+  ansible.builtin.file:
+    path: "/mnt/{{ fs_name }}"
+    state: directory
+    owner: root
+    group: root
+    mode: "755"
+
+- name: Mount the CephFS filesystem
+  become: true
+  ansible.posix.mount:
+    fstype: ceph
+    path: "/mnt/{{ fs_name }}"
+    src: "{{ fs_user }}@.{{ fs_name }}=/"
+    state: mounted