+++ /dev/null
----
-# This playbook shrinks Ceph OSDs using ceph-disk.
-#
-# It can remove any number of OSD(s) from the cluster and ALL THEIR DATA
-#
-# Use it like this:
-# ansible-playbook shrink-osd-ceph-disk.yml -e osd_to_kill=0,2,6
-# Prompts for confirmation to shrink, defaults to no and
-# doesn't shrink the cluster. yes shrinks the cluster.
-#
-# ansible-playbook -e ireallymeanit=yes|no shrink-osd-ceph-disk.yml
-# Overrides the prompt using -e option. Can be used in
-# automation scripts to avoid interactive prompt.
-
-- name: gather facts and check the init system
-
- hosts:
- - "{{ mon_group_name|default('mons') }}"
- - "{{ osd_group_name|default('osds') }}"
-
- become: True
- tasks:
- - debug: msg="gather facts on all Ceph hosts for following reference"
-
-- name: confirm whether user really meant to remove osd(s) from the cluster
- hosts:
- - localhost
- become: true
- vars_prompt:
- - name: ireallymeanit
- prompt: Are you sure you want to shrink the cluster?
- default: 'no'
- private: no
- vars:
- mon_group_name: mons
- osd_group_name: osds
- pre_tasks:
- - name: exit playbook, if user did not mean to shrink cluster
- fail:
- msg: "Exiting shrink-osd playbook, no osd(s) was/were removed..
- To shrink the cluster, either say 'yes' on the prompt or
- or use `-e ireallymeanit=yes` on the command line when
- invoking the playbook"
- when: ireallymeanit != 'yes'
-
- - name: exit playbook, if no osd(s) was/were given
- fail:
- msg: "osd_to_kill must be declared
- Exiting shrink-osd playbook, no OSD(s) was/were removed.
- On the command line when invoking the playbook, you can use
- -e osd_to_kill=0,1,2,3 argument."
- when: osd_to_kill is not defined
-
- tasks:
- - import_role:
- name: ceph-defaults
-
- post_tasks:
- - name: "set_fact docker_exec_cmd build {{ container_binary }} exec command (containerized)"
- set_fact:
- docker_exec_cmd: "{{ container_binary }} exec ceph-mon-{{ hostvars[groups[mon_group_name][0]]['ansible_hostname'] }}"
- when: containerized_deployment
-
- - name: exit playbook, if can not connect to the cluster
- command: "{{ docker_exec_cmd }} timeout 5 ceph --cluster {{ cluster }} health"
- register: ceph_health
- until: ceph_health.stdout.find("HEALTH") > -1
- delegate_to: "{{ groups[mon_group_name][0] }}"
- retries: 5
- delay: 2
-
- - name: find the host(s) where the osd(s) is/are running on
- command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} osd find {{ item }}"
- with_items: "{{ osd_to_kill.split(',') }}"
- delegate_to: "{{ groups[mon_group_name][0] }}"
- register: find_osd_hosts
-
- - name: set_fact osd_hosts
- set_fact:
- osd_hosts: "{{ osd_hosts | default([]) + [ (item.stdout | from_json).crush_location.host ] }}"
- with_items: "{{ find_osd_hosts.results }}"
-
- - name: check if ceph admin key exists on the osd nodes
- stat:
- path: "/etc/ceph/{{ cluster }}.client.admin.keyring"
- register: ceph_admin_key
- with_items: "{{ osd_hosts }}"
- delegate_to: "{{ item }}"
- failed_when: false
- when:
- - not containerized_deployment
-
- - name: fail when admin key is not present
- fail:
- msg: "The Ceph admin key is not present on the OSD node, please add it and remove it after the playbook is done."
- with_items: "{{ ceph_admin_key.results }}"
- when:
- - not containerized_deployment
- - item.stat.exists == false
-
- # NOTE(leseb): using '>' is the only way I could have the command working
- - name: find osd device based on the id
- shell: >
- {{ container_binary }} run --privileged=true -v /dev:/dev --entrypoint /usr/sbin/ceph-disk
- {{ ceph_docker_registry}}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }}
- list | awk -v pattern=osd.{{ item.0 }} '$0 ~ pattern {print $1}'
- with_together:
- - "{{ osd_to_kill.split(',') }}"
- - "{{ osd_hosts }}"
- register: osd_to_kill_disks
- delegate_to: "{{ item.1 }}"
- when:
- - containerized_deployment
-
- - name: find osd dedicated devices - container
- shell: >
- {{ container_binary }} run --privileged=true -v /dev:/dev --entrypoint /usr/sbin/ceph-disk
- {{ ceph_docker_registry}}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }}
- list | grep osd.{{ item.0 }} | grep -Eo '/dev/([hsv]d[a-z]{1,2})[0-9]{1,2}|/dev/nvme[0-9]n[0-9]p[0-9]'
- with_together:
- - "{{ osd_to_kill.split(',') }}"
- - "{{ osd_hosts }}"
- register: osd_to_kill_disks_dedicated
- delegate_to: "{{ item.1 }}"
- when:
- - containerized_deployment
-
- - name: find osd dedicated devices - non container
- shell: ceph-disk list | grep osd.{{ item.0 }} | grep -Eo '/dev/([hsv]d[a-z]{1,2})[0-9]{1,2}|/dev/nvme[0-9]n[0-9]p[0-9]'
- with_together:
- - "{{ osd_to_kill.split(',') }}"
- - "{{ osd_hosts }}"
- register: osd_to_kill_disks_dedicated_non_container
- delegate_to: "{{ item.1 }}"
- when:
- - not containerized_deployment
-
- # if nvme then osd_to_kill_disks is nvme0n1, we need nvme0
- # if ssd or hdd then osd_to_kill_disks is sda1, we need sda
- - name: stop osd services (container)
- service:
- name: "ceph-osd@{{ item.0.stdout[:-2] | regex_replace('/dev/', '') if 'nvme' in item.0.stdout else item.0.stdout[:-1] | regex_replace('/dev/', '') }}"
- state: stopped
- enabled: no
- with_together:
- - "{{ osd_to_kill_disks.results }}"
- - "{{ osd_hosts }}"
- delegate_to: "{{ item.1 }}"
- when:
- - containerized_deployment
-
- - name: resolve parent device
- command: lsblk --nodeps -no pkname "{{ item.0.stdout }}"
- register: resolved_parent_device
- delegate_to: "{{ item.1 }}"
- with_together:
- - "{{ osd_to_kill_disks.results }}"
- - "{{ osd_hosts }}"
- when:
- - containerized_deployment
-
- - name: zap ceph osd disks
- shell: |
- {{ container_binary }} run --rm \
- --privileged=true \
- --name ceph-osd-zap-{{ hostvars[item.1]['ansible_hostname'] }}-{{ item.0.stdout }} \
- -v /dev/:/dev/ \
- -e OSD_DEVICE=/dev/{{ item.0.stdout }} \
- {{ ceph_docker_registry }}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} \
- zap_device
- delegate_to: "{{ item.1 }}"
- with_together:
- - "{{ resolved_parent_device.results }}"
- - "{{ osd_hosts }}"
- when:
- - containerized_deployment
-
- - name: zap ceph osd partitions from dedicated devices
- shell: |
- for osd in {{ ' '.join(item.1.stdout_lines) }}
- do
- if [ -b "${osd}" ];
- pkname=$(lsblk --nodeps -no PKNAME "${osd}");
- then
- echo zapping ceph osd partitions "${osd}";
- {{ container_binary }} run --rm \
- --privileged=true \
- --name ceph-osd-zap-{{ hostvars[item.0]['ansible_hostname'] }}-$(basename "${osd}") \
- -v /dev/:/dev/ \
- -e OSD_DEVICE="${osd}" \
- {{ ceph_docker_registry }}/{{ ceph_docker_image }}:{{ ceph_docker_image_tag }} \
- zap_device;
- partprobe /dev/"${pkname}";
- fi
- done
- with_together:
- - "{{ osd_hosts }}"
- - "{{ osd_to_kill_disks_dedicated.results }}"
- delegate_to: "{{ item.0 }}"
- when:
- - containerized_deployment
- - item.1 | length > 0
-
- - name: deactivating osd(s)
- command: ceph-disk deactivate --cluster {{ cluster }} --deactivate-by-id {{ item.0 }} --mark-out
- run_once: true
- with_together:
- - "{{ osd_to_kill.split(',') }}"
- - "{{ osd_hosts }}"
- delegate_to: "{{ item.1 }}"
- when:
- - not containerized_deployment
-
- - name: destroying osd(s)
- command: ceph-disk destroy --cluster {{ cluster }} --destroy-by-id {{ item.0 }} --zap
- run_once: true
- with_together:
- - "{{ osd_to_kill.split(',') }}"
- - "{{ osd_hosts }}"
- delegate_to: "{{ item.1 }}"
- when:
- - not containerized_deployment
-
- - name: remove osd(s) from crush_map when ceph-disk destroy fail
- command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} osd crush remove osd.{{ item }}"
- run_once: true
- delegate_to: "{{ groups[mon_group_name][0] }}"
- with_items: "{{ osd_to_kill.split(',') }}"
-
- - name: delete osd(s) auth key when ceph-disk destroy fail
- command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} auth del osd.{{ item }}"
- delegate_to: "{{ groups[mon_group_name][0] }}"
- with_items: "{{ osd_to_kill.split(',') }}"
-
- - name: deallocate osd(s) id when ceph-disk destroy fail
- command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} osd rm {{ item }}"
- delegate_to: "{{ groups[mon_group_name][0] }}"
- with_items: "{{ osd_to_kill.split(',') }}"
-
- - name: zap dedicated partitions
- shell: |
- for osd in {{ ' '.join(item.1.stdout_lines) }}
- do
- if [ -b "${osd}" ];
- then
- echo zapping dedicated partition "${osd}"
- pkname=$(lsblk --nodeps -no PKNAME "${osd}")
- wipefs --all "${osd}"
- dd if=/dev/zero of="${osd}" bs=1M count=10
- partition_nb=$(echo "${osd}" | grep -oE '[0-9]{1,2}$')
- sgdisk --delete $partition_nb /dev/"${pkname}"
- partprobe /dev/"${pkname}"
- fi
- done
- with_together:
- - "{{ osd_hosts }}"
- - "{{ osd_to_kill_disks_dedicated_non_container.results }}"
- delegate_to: "{{ item.0 }}"
- when:
- - not containerized_deployment
- - item.1 | length > 0
-
- - name: show ceph health
- command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} -s"
- delegate_to: "{{ groups[mon_group_name][0] }}"
-
- - name: show ceph osd tree
- command: "{{ docker_exec_cmd }} ceph --cluster {{ cluster }} osd tree"
- delegate_to: "{{ groups[mon_group_name][0] }}"
projects / ceph-ansible.git / commitdiff