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|
- name: Backup etcd
hosts: etcd_hosts_to_backup
vars:
embedded_etcd: "{{ hostvars[groups.oo_first_master.0].openshift.master.embedded_etcd }}"
timestamp: "{{ lookup('pipe', 'date +%Y%m%d%H%M%S') }}"
roles:
- openshift_facts
tasks:
# Ensure we persist the etcd role for this host in openshift_facts
- openshift_facts:
role: etcd
local_facts: {}
when: "'etcd' not in openshift"
- stat: path=/var/lib/openshift
register: var_lib_openshift
- stat: path=/var/lib/origin
register: var_lib_origin
- name: Create origin symlink if necessary
file: src=/var/lib/openshift/ dest=/var/lib/origin state=link
when: var_lib_openshift.stat.exists == True and var_lib_origin.stat.exists == False
# TODO: replace shell module with command and update later checks
# We assume to be using the data dir for all backups.
- name: Check available disk space for etcd backup
shell: df --output=avail -k {{ openshift.common.data_dir }} | tail -n 1
register: avail_disk
# TODO: replace shell module with command and update later checks
- name: Check current embedded etcd disk usage
shell: du -k {{ openshift.etcd.etcd_data_dir }} | tail -n 1 | cut -f1
register: etcd_disk_usage
when: embedded_etcd | bool
- name: Abort if insufficient disk space for etcd backup
fail:
msg: >
{{ etcd_disk_usage.stdout }} Kb disk space required for etcd backup,
{{ avail_disk.stdout }} Kb available.
when: (embedded_etcd | bool) and (etcd_disk_usage.stdout|int > avail_disk.stdout|int)
- name: Install etcd (for etcdctl)
package: name=etcd state=present
when: not openshift.common.is_atomic | bool
- name: Generate etcd backup
command: >
etcdctl backup --data-dir={{ openshift.etcd.etcd_data_dir }}
--backup-dir={{ openshift.common.data_dir }}/etcd-backup-{{ backup_tag | default('') }}{{ timestamp }}
- set_fact:
etcd_backup_complete: True
- name: Display location of etcd backup
debug:
msg: "Etcd backup created in {{ openshift.common.data_dir }}/etcd-backup-{{ backup_tag | default('') }}{{ timestamp }}"
- name: Gate on etcd backup
hosts: localhost
connection: local
become: no
tasks:
- set_fact:
etcd_backup_completed: "{{ hostvars
| oo_select_keys(groups.etcd_hosts_to_backup)
| oo_collect('inventory_hostname', {'etcd_backup_complete': true}) }}"
- set_fact:
etcd_backup_failed: "{{ groups.etcd_hosts_to_backup | difference(etcd_backup_completed) }}"
- fail:
msg: "Upgrade cannot continue. The following hosts did not complete etcd backup: {{ etcd_backup_failed | join(',') }}"
when: etcd_backup_failed | length > 0
|
