--- ## SCENARIO 4: USE A DIRECTORY INSTEAD OF A DISK FOR OSD # - name: Install dependancies apt: pkg=parted state=present when: ansible_os_family == 'Debian' - name: Install dependancies yum: name=parted state=present when: ansible_os_family == 'RedHat' - name: Copy OSD bootstrap key copy: src=fetch/{{ fsid }}/var/lib/ceph/bootstrap-osd/ceph.keyring dest=/var/lib/ceph/bootstrap-osd/ceph.keyring owner=root group=root mode=600 when: cephx # NOTE (leseb): we do not check the filesystem underneath the directory # so it is really up to you to configure this properly. # Declaring more than one directory on the same filesystem will confuse Ceph. - name: Create OSD directories file: path={{ item }} state=directory owner=root group=root with_items: osd_directories # Prepare means # - create GPT partition # - mark the partition with the ceph type uuid # - create a file system # - mark the fs as ready for ceph consumption # - entire data disk is used (one big partition) # - a new partition is added to the journal disk (so it can be easily shared) # # NOTE (leseb): the prepare process must be parallelized somehow... # if you have 64 disks with 4TB each, this will take a while # since Ansible will sequential process the loop - name: Prepare OSD disk(s) command: ceph-disk prepare {{ item }} when: osd_directory with_items: osd_directories # Activate means: # - mount the volume in a temp location # - allocate an osd id (if needed) # - remount in the correct location /var/lib/ceph/osd/$cluster-$id # - start ceph-osd # - name: Activate OSD(s) command: ceph-disk activate {{ item }} with_items: osd_directories changed_when: False - name: Start and add that the OSD service to the init sequence service: name=ceph state=started enabled=yes