---
# This playbook switches from non-containerized to containerized Ceph daemons

- name: confirm whether user really meant to switch from non-containerized to containerized ceph daemons

  hosts:
    - localhost

  gather_facts: false

  vars_prompt:
    - name: ireallymeanit
      prompt: Are you sure you want to switch from non-containerized to containerized ceph daemons?
      default: 'no'
      private: no

  tasks:
    - name: exit playbook, if user did not mean to switch from non-containerized to containerized daemons?
      fail:
        msg: >
          "Exiting switch-from-non-containerized-to-containerized-ceph-daemons.yml playbook,
           cluster did not switch from non-containerized to containerized ceph daemons.
           To switch from non-containerized to containerized ceph daemons, either say 'yes' on the prompt or
           or use `-e ireallymeanit=yes` on the command line when
           invoking the playbook"
      when: ireallymeanit != 'yes'


- name: make sure docker is present and started

  hosts:
    - "{{ mon_group_name|default('mons') }}"
    - "{{ osd_group_name|default('osds') }}"
    - "{{ mds_group_name|default('mdss') }}"
    - "{{ rgw_group_name|default('rgws') }}"
    - "{{ rbdmirror_group_name|default('rbdmirrors') }}"
    - "{{ nfs_group_name|default('nfss') }}"

  become: true

  tasks:
    - name: install docker and dependencies for the docker module
      package:
        name: "{{ item }}"
        state: present
      with_items:
        - python-docker-py
        - python-urllib3
        - docker
      when: ansible_os_family == 'RedHat'

    - name: install docker-py for the docker module
      package:
        name: "{{ item }}"
        state: present
      with_items:
        - docker-py
        - python-urllib3
        - docker
      when: ansible_os_family == 'Debian'

    - name: start docker service
      service:
        name: docker
        state: started
        enabled: yes

    - name: check if selinux is enabled
      command: getenforce
      register: sestatus
      changed_when: false
      when: ansible_os_family == 'RedHat'

    - name: set selinux permissions
      command: chcon -Rt svirt_sandbox_file_t "{{ item }}"
      with_items:
        - /etc/ceph
        - /var/lib/ceph
      changed_when: false
      when:
        - sestatus.stdout != 'Disabled'
        - ansible_os_family == 'RedHat'

- name: switching from non-containerized to containerized ceph mon

  vars:
    health_mon_check_retries: 5
    health_mon_check_delay: 15
    containerized_deployment: true
    mon_group_name:       mons
    restapi_group_name:   restapis

  hosts:
    - "{{ mon_group_name|default('mons') }}"

  serial: 1
  become: true

  pre_tasks:
    - name: select a running monitor
      set_fact: mon_host={{ item }}
      with_items: "{{ groups[mon_group_name] }}"
      when: item != inventory_hostname

    - name: stop non-containerized ceph mon
      service:
        name: "ceph-mon@{{ ansible_hostname }}"
        state: stopped
        enabled: no

    - set_fact:
        ceph_uid: 64045
      when: ceph_docker_image_tag | match("latest") or ceph_docker_image_tag | search("ubuntu")

    - set_fact:
        ceph_uid: 167
      when: ceph_docker_image_tag | search("centos") or ceph_docker_image | search("rhceph") or ceph_docker_image_tag | search("fedora")

    - name: set proper ownership on ceph directories
      file:
        path: "{{ item }}"
        owner: "{{ ceph_uid }}"
        recurse: yes
      with_items:
        - /var/lib/ceph
        - /etc/ceph

    - name: check for existing old leveldb file extension (ldb)
      shell: stat /var/lib/ceph/mon/*/store.db/*.ldb
      changed_when: false
      failed_when: false
      register: ldb_files

    - name: rename leveldb extension from ldb to sst
      shell: rename -v .ldb .sst /var/lib/ceph/mon/*/store.db/*.ldb
      changed_when: false
      failed_when: false
      when: ldb_files.rc == 0

  roles:
    - ceph-defaults
    - ceph-docker-common
    - ceph-mon

  post_tasks:
    - name: waiting for the containerized monitor to join the quorum...
      shell: |
        docker exec ceph-mon-{{ hostvars[mon_host]['ansible_hostname'] }} ceph --cluster {{ cluster }} -s -f json | python -c 'import sys, json; print(json.load(sys.stdin)["quorum_names"])'
      register: result
      until: "{{ ansible_hostname in result.stdout }}"
      retries: "{{ health_mon_check_retries }}"
      delay: "{{ health_mon_check_delay }}"
      delegate_to: "{{ mon_host }}"


- name: switching from non-containerized to containerized ceph osd

  vars:
    health_osd_check_retries: 5
    health_osd_check_delay: 15
    containerized_deployment: true
    osd_group_name: osds

  hosts:
    - "{{ osd_group_name|default('osds') }}"

  serial: 1
  become: true


  pre_tasks:
    - name: collect running osds
      shell: |
        systemctl list-units | grep "loaded active" | grep -Eo 'ceph-osd@[0-9]{1,2}.service'
      register: running_osds
      changed_when: false

    - name: collect osd devices
      shell: |
        blkid | awk '/ceph data/ { sub ("1:", "", $1); print $1 }'
      register: devices
      changed_when: false

    - name: stop non-containerized ceph osd(s)
      service:
        name: "{{ item }}"
        state: stopped
        enabled: no
      with_items: "{{ running_osds.stdout_lines }}"

    - set_fact:
        ceph_uid: 64045
      when: ceph_docker_image_tag | match("latest") or ceph_docker_image_tag | search("ubuntu")

    - set_fact:
        ceph_uid: 167
      when: ceph_docker_image_tag | search("centos") or ceph_docker_image | search("rhceph") or ceph_docker_image_tag | search("fedora")

    - name: set proper ownership on ceph directories
      file:
        path: "{{ item }}"
        owner: "{{ ceph_uid }}"
        recurse: yes
      with_items:
        - /var/lib/ceph
        - /etc/ceph

    - name: check for existing old leveldb file extension (ldb)
      shell: stat /var/lib/ceph/osd/*/current/omap/*.ldb
      changed_when: false
      failed_when: false
      register: ldb_files

    - name: rename leveldb extension from ldb to sst
      shell: rename -v .ldb .sst /var/lib/ceph/osd/*/current/omap/*.ldb
      changed_when: false
      failed_when: false
      when:
        - ldb_files.rc == 0

    - name: check if containerized osds are already running
      shell: |
        docker ps | grep -sq {{ item | regex_replace('/', '') }}
      changed_when: false
      failed_when: false
      with_items: "{{ devices.stdout_lines }}"
      register: osd_running

    - name: unmount all the osd directories
      command: umount "{{ item.0 }}"1
      changed_when: false
      failed_when: false
      with_together:
        - "{{ devices.stdout_lines }}"
        - "{{ osd_running.results }}"
      when:
        - item.1.get("rc", 0) != 0

    - set_fact: devices={{ devices.stdout_lines }}

  roles:
    - ceph-defaults
    - ceph-docker-common
    - ceph-osd

  post_tasks:
    - name: waiting for clean pgs...
      shell: |
        test "[""$(docker exec ceph-mon-{{ hostvars[groups[mon_group_name][0]]['ansible_hostname'] }} ceph --cluster {{ cluster }} -s -f json | python -c 'import sys, json; print(json.load(sys.stdin)["pgmap"]["num_pgs"])')""]" = "$(docker exec ceph-mon-{{ hostvars[groups[mon_group_name][0]]['ansible_hostname'] }} ceph --cluster {{ cluster }} -s -f json | python -c 'import sys, json; print [ i["count"] for i in json.load(sys.stdin)["pgmap"]["pgs_by_state"] if i["state_name"] == "active+clean"]')"
      register: result
      until: result.rc == 0
      retries: "{{ health_osd_check_retries }}"
      delay: "{{ health_osd_check_delay }}"
      delegate_to: "{{ groups[mon_group_name][0] }}"


- name: switching from non-containerized to containerized ceph mds

  hosts:
    - "{{ mds_group_name|default('mdss') }}"

  serial: 1
  become: true

  pre_tasks:
    - name: stop non-containerized ceph mds(s)
      service:
        name: "ceph-mds@{{ ansible_hostname }}"
        state: stopped
        enabled: no

    - set_fact:
        ceph_uid: 64045
      when: ceph_docker_image_tag | match("latest") or ceph_docker_image_tag | search("ubuntu")

    - set_fact:
        ceph_uid: 167
      when: ceph_docker_image_tag | search("centos") or ceph_docker_image | search("rhceph") or ceph_docker_image_tag | search("fedora")

    - name: set proper ownership on ceph directories
      file:
        path: "{{ item }}"
        owner: "{{ ceph_uid }}"
        recurse: yes
      with_items:
        - /var/lib/ceph
        - /etc/ceph

  roles:
    - ceph-defaults
    - ceph-docker-common
    - ceph-mds


- name: switching from non-containerized to containerized ceph rgw

  hosts:
    - "{{ rgw_group_name|default('rgws') }}"

  serial: 1
  become: true

  pre_tasks:
    - name: stop non-containerized ceph rgw(s)
      service:
        name: "ceph-rgw@{{ ansible_hostname }}"
        state: stopped
        enabled: no

    - set_fact:
        ceph_uid: 64045
      when: ceph_docker_image_tag | match("latest") or ceph_docker_image_tag | search("ubuntu")

    - set_fact:
        ceph_uid: 167
      when: ceph_docker_image_tag | search("centos") or ceph_docker_image | search("rhceph") or ceph_docker_image_tag | search("fedora")

    - name: set proper ownership on ceph directories
      file:
        path: "{{ item }}"
        owner: "{{ ceph_uid }}"
        recurse: yes
      with_items:
        - /var/lib/ceph
        - /etc/ceph

  roles:
    - ceph-defaults
    - ceph-docker-common
    - ceph-rgw


- name: switching from non-containerized to containerized ceph rbd-mirror

  hosts:
    - "{{ rbdmirror_group_name|default('rbdmirrors') }}"

  serial: 1
  become: true

  pre_tasks:
    - name: stop non-containerized ceph rbd mirror(s)
      service:
        name: "ceph-rbd-mirror@{{ ansible_hostname }}"
        state: stopped
        enabled: no

    - set_fact:
        ceph_uid: 64045
      when: ceph_docker_image_tag | match("latest") or ceph_docker_image_tag | search("ubuntu")

    - set_fact:
        ceph_uid: 167
      when: ceph_docker_image_tag | search("centos") or ceph_docker_image | search("rhceph") or ceph_docker_image_tag | search("fedora")

    - name: set proper ownership on ceph directories
      file:
        path: "{{ item }}"
        owner: "{{ ceph_uid }}"
        recurse: yes
      with_items:
        - /var/lib/ceph
        - /etc/ceph

  roles:
    - ceph-defaults
    - ceph-docker-common
    - ceph-rbd-mirror


- name: switching from non-containerized to containerized ceph nfs

  hosts:
    - "{{ nfs_group_name|default('nfss') }}"

  serial: 1
  become: true

  pre_tasks:
    - name: stop non-containerized ceph nfs(s)
      service:
        name: "ceph-nfs@{{ ansible_hostname }}"
        state: stopped
        enabled: no

    - set_fact:
        ceph_uid: 64045
      when: ceph_docker_image_tag | match("latest") or ceph_docker_image_tag | search("ubuntu")

    - set_fact:
        ceph_uid: 167
      when: ceph_docker_image_tag | search("centos") or ceph_docker_image | search("rhceph") or ceph_docker_image_tag | search("fedora")

    - name: set proper ownership on ceph directories
      file:
        path: "{{ item }}"
        owner: "{{ ceph_uid }}"
        recurse: yes
      with_items:
        - /var/lib/ceph
        - /etc/ceph

  roles:
    - ceph-defaults
    - ceph-docker-common
    - ceph-nfs