From 9c449996827ba57b7e04245bc41bf40f6d16920a Mon Sep 17 00:00:00 2001
From: Timo Makinen <tmakinen@foo.sh>
Date: Sun, 23 Jul 2023 17:12:41 +0000
Subject: [PATCH] mariadb: Add timezone information to database

---
 roles/mariadb/files/mysql_tzinfo_check.sh | 22 ++++++++++++++++++++++
 roles/mariadb/tasks/main.yml              | 15 +++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100755 roles/mariadb/files/mysql_tzinfo_check.sh

diff --git a/roles/mariadb/files/mysql_tzinfo_check.sh b/roles/mariadb/files/mysql_tzinfo_check.sh
new file mode 100755
index 0000000..44e2de2
--- /dev/null
+++ b/roles/mariadb/files/mysql_tzinfo_check.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+set -eu
+
+_timestamp=$(cat <<EOF | mysql -s
+SELECT
+    UNIX_TIMESTAMP(UPDATE_TIME)
+FROM
+    information_schema.tables
+WHERE
+    TABLE_SCHEMA='mysql' AND TABLE_NAME LIKE 'time_zone';
+EOF
+)
+
+if [ "$(rpm -q --queryformat "%{installtime}" tzdata)" -gt "$_timestamp" ]; then
+    {
+        echo "WARNING: MariaDB timezone data older than sytem timezones"
+        echo ""
+        echo "Run: mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql mysql"
+    } 1>&2
+    exit 1
+fi
diff --git a/roles/mariadb/tasks/main.yml b/roles/mariadb/tasks/main.yml
index 519068d..2673211 100644
--- a/roles/mariadb/tasks/main.yml
+++ b/roles/mariadb/tasks/main.yml
@@ -135,3 +135,18 @@
     job: /usr/local/sbin/mariadb-backup
     hour: "0"
     minute: "30"
+
+- name: Copy script to check timezone data
+  ansible.builtin.copy:
+    dest: /usr/local/sbin/mysql_tzinfo_check
+    src: mysql_tzinfo_check.sh
+    mode: 0755
+    owner: root
+    group: "{{ ansible_wheel }}"
+
+- name: Create cron job for checking timezone data
+  ansible.builtin.cron:
+    name: mysql_tzinfo_check
+    job: /usr/local/sbin/mysql_tzinfo_check
+    hour: "3"
+    minute: "15"