ansible-roles/roles/zabbix_server/templates/pre_backup.sh.j2

#!/bin/sh

set -eo pipefail

{% if zabbix_server_backup_hooks %}
mkdir -p /home/lbkp/zabbix
# First, backup the schema
/usr/bin/mysqldump --user={{ zabbix_server_db_user | quote }} \
                   --password={{ zabbix_server_db_pass | quote }} \
                   --host={{ zabbix_server_db_server | quote }} \
                   --port={{ zabbix_server_db_port }} \
                   --no-data \
                   --quick --single-transaction \
                   --add-drop-table {{ zabbix_server_db_name | quote }} | zstd -T0 -c > /home/lbkp/zabbix/{{ zabbix_server_db_name }}_schema.sql.zst

# Then, backup data
{% if zabbix_server_backup_on_full_only %}
if [[ "$1" == "full" ]]; then
  /usr/bin/mysqldump --user={{ zabbix_server_db_user | quote }} \
                     --password={{ zabbix_server_db_pass | quote }} \
                     --host={{ zabbix_server_db_server | quote }} \
                     --port={{ zabbix_server_db_port }} \
                     --no-create-info \
                     --quick --single-transaction \
                     --add-locks \
                     {{ zabbix_server_db_name | quote }} | zstd -T0 -c > /home/lbkp/zabbix/{{ zabbix_server_db_name }}_data.sql.zst
else
{% endif %}
  /usr/bin/mysqldump --user={{ zabbix_server_db_user | quote }} \
                     --password={{ zabbix_server_db_pass | quote }} \
                     --host={{ zabbix_server_db_server | quote }} \
                     --port={{ zabbix_server_db_port }} \
                     --no-create-info \
{% if zabbix_server_backup_on_full_only %}
{% for table in ['events', 'history', 'history_uint', 'history_str', 'history_text', 'trends', 'trends_uint'] %}
                     --ignore-table={{ zabbix_server_db_name }}.{{ table }} \
{% endfor %}
{% endif %}
                     --quick --single-transaction \
                     --add-locks \
                   {{ zabbix_server_db_name | quote }} | zstd -T0 -c > /home/lbkp/zabbix/{{ zabbix_server_db_name }}_data.sql.zst
{% if zabbix_server_backup_on_full_only %}
fi
{% endif %}
{% else %}
# pre and post backup hooks are disabled on this host
{% endif %}