ceph-ansible/rolling_update.yml

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---
# This playbook does a rolling update for all the Ceph services
# Change the value of serial: to adjust the number of server to be updated.
#
# The four roles that apply to the ceph hosts will be applied: ceph-common,
# ceph-mon, ceph-osd and ceph-mds. So any changes to configuration, package updates, etc,
# will be applied as part of the rolling update process.
#
# /!\ DO NOT FORGET TO CHANGE THE RELEASE VERSION FIRST! /!\
- hosts: all
tasks:
- debug: msg="gather facts on all hosts for following reference"
- hosts: mons
serial: 1
sudo: True
pre_tasks:
- name: Compress the store as much as possible
command: ceph tell mon.{{ ansible_hostname }} compact
roles:
- ceph-common
- ceph-mon
post_tasks:
- name: Check if sysvinit
stat: >
path=/var/lib/ceph/mon/ceph-{{ ansible_hostname }}/sysvinit
register: monsysvinit
- name: Check if upstart
stat: >
path=/var/lib/ceph/mon/ceph-{{ ansible_hostname }}/upstart
register: monupstart
- name: Restart the monitor after compaction (Upstart)
service: >
name=ceph-mon
state=restarted
args=id={{ ansible_hostname }}
when: monupstart.stat.exists == True
- name: Restart the monitor after compaction (Sysvinit)
service: >
name=ceph
state=restarted
args=mon
when: monsysvinit.stat.exists == True
- name: restart monitor(s)
service: >
name=ceph
state=restarted
args=mon
- name: select a running monitor
set_fact: mon_host={{ item }}
with_items: groups.mons
when: item != inventory_hostname
- name: Waiting for the monitor to join the quorum...
shell: >
ceph -s | grep monmap | sed 's/.*quorum//' | egrep -sq {{ ansible_hostname }}
register: result
until: result.rc == 0
retries: 5
delay: 10
delegate_to: "{{ mon_host }}"
- hosts: osds
serial: 1
sudo: True
pre_tasks:
- name: Set OSD flags
command: ceph osd set {{ item }}
with_items:
- noout
- noscrub
- nodeep-scrub
delegate_to: "{{ groups.mons[0] }}"
roles:
- ceph-common
- ceph-osd
post_tasks:
- name: Check if sysvinit
shell: stat /var/lib/ceph/osd/ceph-*/sysvinit
register: osdsysvinit
ignore_errors: True
- name: Check if upstart
shell: stat /var/lib/ceph/osd/ceph-*/upstart
register: osdupstart
ignore_errors: True
- name: Gracefully stop the OSDs (Upstart)
service: >
name=ceph-osd-all
state=restarted
when: osdupstart.rc == 0
- name: Gracefully stop the OSDs (Sysvinit)
service: >
name=ceph
state=restarted
2015-04-15 03:47:37 +08:00
args=osd
2015-04-14 21:49:24 +08:00
when: osdsysvinit.rc == 0
- name: Waiting for clean PGs...
shell: >
test "$(ceph pg stat | sed 's/^.*pgs://;s/active+clean.*//;s/ //')" -eq "$(ceph pg stat | sed 's/pgs.*//;s/^.*://;s/ //')" && ceph health | egrep -sq "HEALTH_OK|HEALTH_WARN"
register: result
until: result.rc == 0
retries: 10
delay: 10
delegate_to: "{{ groups.mons[0] }}"
- name: Unset OSD flags
command: ceph osd unset {{ item }}
with_items:
- noout
- noscrub
- nodeep-scrub
delegate_to: "{{ groups.mons[0] }}"
- hosts: mdss
serial: 1
sudo: True
roles:
- ceph-common
- ceph-mds
post_tasks:
- name: Check if sysvinit
stat: >
path=/var/lib/ceph/mon/ceph-{{ ansible_hostname }}/sysvinit
register: mdssysvinit
- name: Check if upstart
stat: >
path=/var/lib/ceph/mon/ceph-{{ ansible_hostname }}/upstart
register: mdsupstart
- name: Restart the metadata server (Upstart)
service: >
name=ceph-mds
state=restarted
args=id={{ ansible_hostname }}
when: mdsupstart.stat.exists == True
- name: Restart the metadata server (Sysvinit)
service: >
name=ceph
state=restarted
args=mds
when: mdssysvinit.stat.exists == True
- hosts: rgws
serial: 1
sudo: True
roles:
- ceph-common
- ceph-radosgw
post_tasks:
- name: restart rados gateway server(s)
service: >
name={{ item }}
state=restarted
with_items:
- radosgw
when: radosgw_frontend == 'civetweb'
- name: restart rados gateway server(s)
service: >
name={{ item }}
state=restarted
with_items:
- apache2
- radosgw
when: radosgw_frontend == 'apache'