fix: use env vars in MySQL and Cassandra setup scripts

Apply the same fix from the PostgreSQL scripts to the MySQL and
Cassandra setup scripts, replacing hardcoded hostnames, usernames,
and ports with compose-provided environment variables.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: chaptersix

compose/scripts/setup-cassandra-es.sh

@@ -7,22 +7,23 @@ set -eu
 : "${ES_PORT:?ERROR: ES_PORT environment variable is required}"
 : "${ES_VISIBILITY_INDEX:?ERROR: ES_VISIBILITY_INDEX environment variable is required}"
 : "${ES_VERSION:?ERROR: ES_VERSION environment variable is required}"
+: "${CASSANDRA_SEEDS:?ERROR: CASSANDRA_SEEDS environment variable is required}"
 
 echo 'Starting Cassandra and Elasticsearch schema setup...'
 echo 'Waiting for Cassandra port to be available...'
-nc -z -w 10 cassandra 9042
+nc -z -w 10 ${CASSANDRA_SEEDS} 9042
 echo 'Cassandra port is available'
 echo 'Waiting for Cassandra to be ready...'
-until temporal-cassandra-tool --ep cassandra validate-health; do
+until temporal-cassandra-tool --ep ${CASSANDRA_SEEDS} validate-health; do
   echo 'Cassandra not ready yet, waiting...'
   sleep 2
 done
 echo 'Cassandra is ready'
 
 # Create and setup Cassandra keyspace
-temporal-cassandra-tool --ep cassandra create -k temporal --rf 1
-temporal-cassandra-tool --ep cassandra -k temporal setup-schema -v 0.0
-temporal-cassandra-tool --ep cassandra -k temporal update-schema -d /etc/temporal/schema/cassandra/temporal/versioned
+temporal-cassandra-tool --ep ${CASSANDRA_SEEDS} create -k temporal --rf 1
+temporal-cassandra-tool --ep ${CASSANDRA_SEEDS} -k temporal setup-schema -v 0.0
+temporal-cassandra-tool --ep ${CASSANDRA_SEEDS} -k temporal update-schema -d /etc/temporal/schema/cassandra/temporal/versioned
 
 # Setup Elasticsearch index
 # temporal-elasticsearch-tool is available in v1.30+ server releases

compose/scripts/setup-mysql-es.sh

@@ -9,15 +9,18 @@ set -eu
 : "${ES_VISIBILITY_INDEX:?ERROR: ES_VISIBILITY_INDEX environment variable is required}"
 : "${ES_VERSION:?ERROR: ES_VERSION environment variable is required}"
 
+: "${MYSQL_SEEDS:?ERROR: MYSQL_SEEDS environment variable is required}"
+: "${MYSQL_USER:?ERROR: MYSQL_USER environment variable is required}"
+
 echo 'Starting MySQL and Elasticsearch schema setup...'
 echo 'Waiting for MySQL port to be available...'
-nc -z -w 10 mysql 3306
+nc -z -w 10 ${MYSQL_SEEDS} ${DB_PORT:-3306}
 echo 'MySQL port is available'
 
 # Create and setup temporal database
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal create
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal setup-schema -v 0.0
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal update-schema -d /etc/temporal/schema/mysql/v8/temporal/versioned
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal create
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal setup-schema -v 0.0
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal update-schema -d /etc/temporal/schema/mysql/v8/temporal/versioned
 
 # Setup Elasticsearch index
 # temporal-elasticsearch-tool is available in v1.30+ server releases

compose/scripts/setup-mysql.sh

@@ -2,20 +2,24 @@
 # @@@SNIPSTART compose-mysql-setup
 set -eu
 
+# Validate required environment variables
+: "${MYSQL_SEEDS:?ERROR: MYSQL_SEEDS environment variable is required}"
+: "${MYSQL_USER:?ERROR: MYSQL_USER environment variable is required}"
+
 echo 'Starting MySQL schema setup...'
 echo 'Waiting for MySQL port to be available...'
-nc -z -w 10 mysql 3306
+nc -z -w 10 ${MYSQL_SEEDS} ${DB_PORT:-3306}
 echo 'MySQL port is available'
 
 # Create and setup temporal database
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal create
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal setup-schema -v 0.0
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal update-schema -d /etc/temporal/schema/mysql/v8/temporal/versioned
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal create
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal setup-schema -v 0.0
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal update-schema -d /etc/temporal/schema/mysql/v8/temporal/versioned
 
 # Create and setup visibility database
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal_visibility create
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal_visibility setup-schema -v 0.0
-temporal-sql-tool --plugin mysql8 --ep mysql -u root -p 3306 --db temporal_visibility update-schema -d /etc/temporal/schema/mysql/v8/visibility/versioned
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal_visibility create
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal_visibility setup-schema -v 0.0
+temporal-sql-tool --plugin mysql8 --ep ${MYSQL_SEEDS} -u ${MYSQL_USER} -p ${DB_PORT:-3306} --db temporal_visibility update-schema -d /etc/temporal/schema/mysql/v8/visibility/versioned
 
 echo 'MySQL schema setup complete'
 # @@@SNIPEND