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|
---
- name: Pre-migrate checks
hosts: localhost
tasks:
# Check there is only one etcd host
- assert:
that: groups.oo_etcd_to_config | default([]) | length == 1
msg: "[etcd] group must contain only one host"
# Check there is only one master
- assert:
that: groups.oo_masters_to_config | default([]) | length == 1
msg: "[master] group must contain only one host"
# 1. stop a master
- name: Prepare masters for etcd data migration
hosts: oo_first_master
roles:
- role: openshift_facts
tasks:
- name: Check the master API is ready
include_role:
name: openshift_master
tasks_from: check_master_api_is_ready
- set_fact:
master_service: "{{ openshift.common.service_type + '-master' }}"
embedded_etcd_backup_suffix: "{{ lookup('pipe', 'date +%Y%m%d%H%M%S') }}"
- debug:
msg: "master service name: {{ master_service }}"
- name: Stop master
service:
name: "{{ master_service }}"
state: stopped
# 2. backup embedded etcd
# Can't use with_items with include_role: https://github.com/ansible/ansible/issues/21285
- include_role:
name: etcd
tasks_from: backup
vars:
r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
r_etcd_common_backup_tag: pre-migrate
r_etcd_common_embedded_etcd: "{{ true }}"
r_etcd_common_backup_sufix_name: "{{ embedded_etcd_backup_suffix }}"
- include_role:
name: etcd
tasks_from: backup.archive
vars:
r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
r_etcd_common_backup_tag: pre-migrate
r_etcd_common_embedded_etcd: "{{ true }}"
r_etcd_common_backup_sufix_name: "{{ embedded_etcd_backup_suffix }}"
# 3. deploy certificates (for etcd and master)
- include: ca.yml
- include: server_certificates.yml
- name: Backup etcd client certificates for master host
hosts: oo_first_master
tasks:
- include_role:
name: etcd
tasks_from: backup_master_etcd_certificates
- name: Redeploy master etcd certificates
include: master_etcd_certificates.yml
vars:
etcd_certificates_redeploy: "{{ true }}"
# 4. deploy external etcd
- include: ../openshift-etcd/config.yml
# 5. stop external etcd
- name: Cleanse etcd
hosts: oo_etcd_to_config[0]
gather_facts: no
pre_tasks:
- include_role:
name: etcd
tasks_from: disable_etcd
vars:
r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
- include_role:
name: etcd
tasks_from: clean_data
vars:
r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
# 6. copy the embedded etcd backup to the external host
# TODO(jchaloup): if the etcd and first master are on the same host, just copy the directory
- name: Copy embedded etcd backup to the external host
hosts: localhost
tasks:
- name: Create local temp directory for syncing etcd backup
local_action: command mktemp -d /tmp/etcd_backup-XXXXXXX
register: g_etcd_client_mktemp
changed_when: False
become: no
- include_role:
name: etcd
tasks_from: backup.fetch
vars:
r_etcd_common_etcd_runtime: "{{ hostvars[groups.oo_first_master.0].openshift.common.etcd_runtime }}"
etcd_backup_sync_directory: "{{ g_etcd_client_mktemp.stdout }}"
r_etcd_common_backup_tag: pre-migrate
r_etcd_common_embedded_etcd: "{{ true }}"
r_etcd_common_backup_sufix_name: "{{ hostvars[groups.oo_first_master.0].embedded_etcd_backup_suffix }}"
delegate_to: "{{ groups.oo_first_master[0] }}"
- include_role:
name: etcd
tasks_from: backup.copy
vars:
r_etcd_common_etcd_runtime: "{{ hostvars[groups.oo_etcd_to_config.0].openshift.common.etcd_runtime }}"
etcd_backup_sync_directory: "{{ g_etcd_client_mktemp.stdout }}"
r_etcd_common_backup_tag: pre-migrate
r_etcd_common_backup_sufix_name: "{{ hostvars[groups.oo_first_master.0].embedded_etcd_backup_suffix }}"
delegate_to: "{{ groups.oo_etcd_to_config[0] }}"
- debug:
msg: "etcd_backup_dest_directory: {{ g_etcd_client_mktemp.stdout }}"
- name: Delete temporary directory
local_action: file path="{{ g_etcd_client_mktemp.stdout }}" state=absent
changed_when: False
become: no
# 7. force new cluster from the backup
- name: Force new etcd cluster
hosts: oo_etcd_to_config[0]
tasks:
- include_role:
name: etcd
tasks_from: backup.unarchive
vars:
r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
r_etcd_common_backup_tag: pre-migrate
r_etcd_common_backup_sufix_name: "{{ hostvars[groups.oo_first_master.0].embedded_etcd_backup_suffix }}"
- include_role:
name: etcd
tasks_from: backup.force_new_cluster
vars:
r_etcd_common_etcd_runtime: "{{ openshift.common.etcd_runtime }}"
r_etcd_common_backup_tag: pre-migrate
r_etcd_common_backup_sufix_name: "{{ hostvars[groups.oo_first_master.0].embedded_etcd_backup_suffix }}"
etcd_peer: "{{ openshift.common.ip }}"
etcd_url_scheme: "https"
etcd_peer_url_scheme: "https"
# 8. re-configure master to use the external etcd
- name: Configure master to use external etcd
hosts: oo_first_master
tasks:
- include_role:
name: openshift_master
tasks_from: configure_external_etcd
vars:
etcd_peer_url_scheme: "https"
etcd_ip: "{{ openshift.common.ip }}"
etcd_peer_port: 2379
# 9. start the master
- name: Start master
service:
name: "{{ master_service }}"
state: started
register: service_status
until: service_status.state is defined and service_status.state == "started"
retries: 5
delay: 10
|
