mirror of https://github.com/ceph/ceph-ansible.git
133 lines
5.0 KiB
YAML
133 lines
5.0 KiB
YAML
---
|
|
# This playbook removes the Ceph RBD mirror from your cluster on the given
|
|
# node.
|
|
#
|
|
# Use it like this:
|
|
# ansible-playbook shrink-rbdmirror.yml -e rbdmirror_to_kill=ceph-rbdmirror01
|
|
# 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-rbdmirror.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') }}"
|
|
- "{{ mon_group_name|default('rbdmirrors') }}"
|
|
become: true
|
|
tasks:
|
|
- debug:
|
|
msg: gather facts on MONs and RBD mirrors
|
|
|
|
- name: confirm whether user really meant to remove rbd mirror from the ceph
|
|
cluster
|
|
hosts: localhost
|
|
become: true
|
|
vars_prompt:
|
|
- name: ireallymeanit
|
|
prompt: Are you sure you want to shrink the cluster?
|
|
default: 'no'
|
|
private: no
|
|
pre_tasks:
|
|
- import_role:
|
|
name: ceph-defaults
|
|
|
|
- import_role:
|
|
name: ceph-facts
|
|
|
|
- name: exit playbook, if no rbdmirror was given
|
|
fail:
|
|
msg: "rbdmirror_to_kill must be declared
|
|
Exiting shrink-cluster playbook, no RBD mirror was removed.
|
|
On the command line when invoking the playbook, you can use
|
|
-e rbdmirror_to_kill=rbd-mirror01 argument. You can only remove a
|
|
single rbd mirror each time the playbook runs."
|
|
when: rbdmirror_to_kill is not defined
|
|
|
|
- name: exit playbook, if the rbdmirror is not part of the inventory
|
|
fail:
|
|
msg: >
|
|
It seems that the host given is not part of your inventory,
|
|
please make sure it is.
|
|
when: rbdmirror_to_kill not in groups[rbdmirror_group_name]
|
|
|
|
- name: exit playbook, if user did not mean to shrink cluster
|
|
fail:
|
|
msg: "Exiting shrink-rbdmirror playbook, no rbd-mirror was 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: set_fact container_exec_cmd for mon0
|
|
when: containerized_deployment | bool
|
|
set_fact:
|
|
container_exec_cmd: "{{ container_binary }} exec ceph-mon-{{ hostvars[groups[mon_group_name][0]]['ansible_hostname'] }}"
|
|
|
|
- name: exit playbook, if can not connect to the cluster
|
|
command: "{{ container_exec_cmd | default('') }} timeout 5 ceph --cluster {{ cluster }} -s -f json"
|
|
register: ceph_health
|
|
until: ceph_health.rc
|
|
failed_when: ceph_health.rc != 0
|
|
delegate_to: "{{ groups[mon_group_name][0] }}"
|
|
retries: 5
|
|
delay: 2
|
|
|
|
- name: set_fact rbdmirror_to_kill_hostname
|
|
set_fact:
|
|
rbdmirror_to_kill_hostname: "{{ hostvars[rbdmirror_to_kill]['ansible_hostname'] }}"
|
|
|
|
- name: set_fact rbdmirror_gids
|
|
set_fact:
|
|
rbdmirror_gids: "{{ rbdmirror_gids | default([]) + [ item ] }}"
|
|
with_items: "{{ (ceph_health.stdout | from_json)['servicemap']['services']['rbd-mirror']['daemons'].keys() | list }}"
|
|
when: item != 'summary'
|
|
|
|
- name: set_fact rbdmirror_to_kill_gid
|
|
set_fact:
|
|
rbdmirror_to_kill_gid: "{{ (ceph_health.stdout | from_json)['servicemap']['services']['rbd-mirror']['daemons'][item]['gid'] }}"
|
|
with_items: "{{ rbdmirror_gids }}"
|
|
when: (ceph_health.stdout | from_json)['servicemap']['services']['rbd-mirror']['daemons'][item]['metadata']['hostname'] == rbdmirror_to_kill_hostname
|
|
|
|
tasks:
|
|
- name: stop rbdmirror service
|
|
service:
|
|
name: ceph-rbd-mirror@rbd-mirror.{{ rbdmirror_to_kill_hostname }}
|
|
state: stopped
|
|
enabled: no
|
|
delegate_to: "{{ rbdmirror_to_kill }}"
|
|
failed_when: false
|
|
|
|
- name: purge related directories
|
|
file:
|
|
path: /var/lib/ceph/bootstrap-rbd-mirror/{{ cluster }}-{{ rbdmirror_to_kill_hostname }}
|
|
state: absent
|
|
delegate_to: "{{ rbdmirror_to_kill }}"
|
|
|
|
post_tasks:
|
|
- name: get servicemap details
|
|
command: "{{ container_exec_cmd | default('') }} timeout 5 ceph --cluster {{ cluster }} -s -f json"
|
|
register: ceph_health
|
|
delegate_to: "{{ groups[mon_group_name][0] }}"
|
|
|
|
- name: set_fact rbdmirror_gids
|
|
set_fact:
|
|
post_rbdmirror_gids: "{{ post_rbdmirror_gids | default([]) + [ item ] }}"
|
|
with_items: "{{ (ceph_health.stdout | from_json)['servicemap']['services']['rbd-mirror']['daemons'].keys() | list }}"
|
|
when:
|
|
- "'rbd-mirror' in (ceph_health.stdout | from_json)['servicemap']['services'].keys() | list"
|
|
- item != 'summary'
|
|
|
|
- name: show ceph health
|
|
command: "{{ container_exec_cmd | default('') }} ceph --cluster {{ cluster }} -s"
|
|
delegate_to: "{{ groups[mon_group_name][0] }}"
|
|
|
|
- name: check presence of "{{ rbdmirror_to_kill_hostname }}"
|
|
fail:
|
|
msg: "{{ rbdmirror_to_kill_hostname }} still active!"
|
|
when:
|
|
- rbdmirror_to_kill_gid is defined
|
|
- post_rbdmirror_gids is defined
|
|
- rbdmirror_to_kill_gid in post_rbdmirror_gids
|