tests: ensure mysql is on the same timezone as the host machine when …

…TZ is set

scripts/docker-compose.yml

@@ -15,8 +15,10 @@ services:
     - 3306:3306
     volumes:
     - ./mysql:/docker-entrypoint-initdb.d/
+    - /etc/localtime:/localtime-from-host
     environment:
     - MYSQL_ROOT_PASSWORD=changeme
+    - TZ=${TZ}
     command:
       - --sql_mode=ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION,PAD_CHAR_TO_FULL_LENGTH
   openldap:

scripts/mysql/init-db.sh

@@ -2,6 +2,7 @@
 
 set -euo pipefail
 
+
 # Number of gradle workers times 4, which was somewhat arbitrary but is sufficient in practice.
 # We make extra dbs because a gradle worker ID can exceed the max number of workers.
 NUM_OF_DATABASES_TO_CREATE=24
@@ -24,8 +25,28 @@ function createDB() {
 EOSQL
 }
 
+function setTimezone() {
+  # If the "TZ" container is set in the container definition, then set the
+  # DB at the given timezone
+  #
+  # This is important because the database should run in the same timezone as the UAA,
+  # and, in the case of tests, the same timezone as the JVM running the tests.
+  #
+  # We achieve consistency by changing the timezone inside the DB; because setting
+  # it in the container is complicated. The container is missing the `timedatectl`
+  # binary ; and the script runs as the mysql user which does not have sudo privileges.
+  if [[ -n "$TZ" ]]; then
+    echo "Setting DB timezone to: $TZ"
+    mysql -uroot -pchangeme <<-EOSQL
+    SET GLOBAL time_zone = "$TZ";
+EOSQL
+  fi
+}
+
+
+
 initDB
 
 for db_id in `seq 1 $NUM_OF_DATABASES_TO_CREATE`; do
   createDB $db_id
-done
+done