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hetzner-ansible/restore-remote-database-bac...

266 lines
8.1 KiB
YAML

---
# restores remote database backup
# - postgres
# - executed on stage specific server: {{ stage }}-restore-postgres-01
# - restores a server from full-backup
# - mariadb
# - executed on stage specific server: {{ stage }}-restore-maria-01
# - restores a server from full-backup
# Parameters:
# playbook inventory
# stage := the name of the stage (e.g. dev, int, qa, prod)
# database_engine := the database engine to restore a backup for (e.g. postgres, maria)
# smardigo message callback
# scope_id := (scope id of the management process)
# process_instance_id := (process instance id of the management process)
# smardigo_management_action := (smardigo management action anme of the management process)
#############################################################
# Creating inventory dynamically for given parameters
#############################################################
- hosts: localhost
connection: local
gather_facts: false
pre_tasks:
- name: "Check if ansible version is at least 2.10.x"
assert:
that:
- ansible_version.major >= 2
- ansible_version.minor >= 10
msg: "The ansible version has to be at least ({{ ansible_version.full }})"
# add virtual server to load stage specific variables as context
- name: "Add <{{ stage }}-virtual-host-to-read-groups-vars> to hosts"
add_host:
name: "{{ stage }}-virtual-host-to-read-groups-vars"
groups:
- "stage_{{ stage }}"
changed_when: False
tasks:
- name: "Add {{ database_engine }} servers to hosts if necessary"
add_host:
name: "{{ stage }}-restore-{{ database_engine }}-01"
groups:
- "stage_{{ stage }}"
- 'restore'
changed_when: False
- name: "Add 'backup' servers to hosts if necessary"
add_host:
name: "{{ stage }}-backup-01"
groups:
- "stage_{{ stage }}"
- backup
changed_when: False
#############################################################
# Create restore server(s)
#############################################################
- hosts: "restore"
serial: "{{ serial_number | default(1) }}"
gather_facts: false
remote_user: root
roles:
- role: hcloud
vars:
sma_digitalocean_ttl: 60 # set it to 60sec to reduce DNS caching problems with internal IT in case of debugging ansible problems ;)
#############################################################
# Provisioning server(s) for created inventory
#############################################################
- hosts: "restore"
serial: "{{ serial_number | default(1) }}"
remote_user: root
vars:
ansible_ssh_host: "{{ stage_server_domain }}"
pre_tasks:
- name: "Import autodiscover pre-tasks"
import_tasks: tasks/autodiscover_pre_tasks.yml
become: false
tags:
- always
roles:
- role: common
- role: filebeat
when: filebeat_enabled | default(True)
- role: node_exporter
when: node_exporter_enabled | default(True)
- role: restore_{{ database_engine }}
#############################################################
# add restore specific firewall rule
#############################################################
- hosts: "{{ stage }}-virtual-host-to-read-groups-vars"
serial: "{{ serial_number | default(1) }}"
gather_facts: false
connection: local
vars:
hcloud_firewall_objects_backup:
-
name: "{{ stage }}-restore-ssh-access"
state: present
rules:
-
direction: in
protocol: tcp
port: '22'
source_ips:
- "{{ lookup('community.general.dig', groups['backup'][0] + '.' + domain ) }}/32"
destination_ips: []
description: null
apply_to:
-
type: label_selector
label_selector:
selector: 'service=restore'
tasks:
- name: "Add hcloud firewall rule(s)"
include_role:
name: hcloud
tasks_from: configure-firewall2
loop: "{{ hcloud_firewall_objects_backup }}"
loop_control:
loop_var: firewall_object
#############################################################
# Syncing backups from backup server to restore server
#############################################################
- hosts: "backup"
serial: "{{ serial_number | default(5) }}"
gather_facts: false
vars:
backupserver_system_user: 'backuphamster'
ansible_ssh_host: "{{ stage_server_domain }}"
tasks:
# I could not get it up and running with <synchronize> module
# to sync data from remote server A to remote server B
- name: "Syncing remote backups"
become: yes
become_user: '{{ backupserver_system_user }}'
vars:
database_server_ip: "{{ groups['restore'][0] }}.{{ domain }}"
shell: '/home/{{ backupserver_system_user }}/push_backups_to_restore_server.sh {{ database_server_ip }} {{ stage }} {{ database_engine }}'
#############################################################
# Restoring from backup
#############################################################
- hosts: "restore"
serial: "{{ serial_number | default(1) }}"
gather_facts: false
vars:
ansible_ssh_host: "{{ stage_server_domain }}"
tasks:
- name: "Triggering restore"
become: yes
shell: '/root/restore.sh {{ stage }}'
- name: "Check for test data on postgres"
block:
- name: "Querying postgres ..."
become: yes
become_user: postgres
community.postgresql.postgresql_query:
db: dummytestdb
query: SELECT movie FROM movie_quotes WHERE quote = %(quote_val)s
named_args:
quote_val: 'Shall we play'
register: query_output
- assert:
that:
- 'query_output.query_all_results | first | selectattr("movie","match","wargames") | length == 1'
when:
- database_engine == 'postgres'
- name: "Check for test data on mariadb"
block:
- name: "Querying mariadb ..."
become: yes
become_user: root
community.mysql.mysql_query:
login_unix_socket: /run/mysqld/mysqld.sock
login_db: dummytestdb
query: SELECT movie FROM movie_quotes WHERE quote = %s
positional_args:
- 'Shall we play'
register: query_output
- assert:
that:
- 'query_output.query_result | first | selectattr("movie","match","wargames") | length == 1'
when:
- database_engine == 'maria'
#############################################################
# Deleting volumes for created inventory
#############################################################
- hosts: "restore"
serial: "{{ serial_number | default(5) }}"
gather_facts: false
tasks:
- name: "Delete volumes for <{{ inventory_hostname }}>"
include_role:
name: lvm_with_hetzner_volumes
tasks_from: _remove_hetzner_volumes
#############################################################
# Deleting servers/domains for created inventory
#############################################################
- hosts: "restore"
serial: "{{ serial_number | default(5) }}"
gather_facts: false
tasks:
- name: "Delete server <{{ inventory_hostname }}>"
include_role:
name: hcloud
tasks_from: _set_server_state
vars:
- server_state: "absent"
- name: "Delete DNS entry <{{ inventory_hostname }}> for <{{ domain }}>"
include_role:
name: dns
tasks_from: _remove_dns
vars:
record_to_remove: '{{ inventory_hostname }}'
#############################################################
# Sending smardigo management message to process
#############################################################
- hosts: "{{ stage }}-virtual-host-to-read-groups-vars"
serial: "{{ serial_number | default(1) }}"
gather_facts: false
connection: local
run_once: true
vars:
connect_jwt_username: "{{ management_admin_username }}"
tasks:
- name: "Sending smardigo management message to <{{ shared_service_url_management }}>"
include_tasks: tasks/smardigo_management_message.yml