#!/bin/bash
#
# This is an entrypoint that runs the MySQL server in the 'slave' mode.
#

source ${CONTAINER_SCRIPTS_PATH}/common.sh
set -eu

export_setting_variables

log_volume_info $MYSQL_DATADIR

export MYSQL_RUNNING_AS_SLAVE=1

[ -f ${CONTAINER_SCRIPTS_PATH}/validate-replication-variables.sh ] && source ${CONTAINER_SCRIPTS_PATH}/validate-replication-variables.sh

# Generate the unique 'server-id' for this master
export MYSQL_SERVER_ID=$(server_id)
log_info "The 'slave' server-id is ${MYSQL_SERVER_ID}"

# Process the MySQL configuration files
log_info 'Processing MySQL configuration files ...'
envsubst < ${CONTAINER_SCRIPTS_PATH}/my-base.cnf.template > /etc/my.cnf.d/base.cnf
envsubst < ${CONTAINER_SCRIPTS_PATH}/my-paas.cnf.template > /etc/my.cnf.d/paas.cnf
envsubst < ${CONTAINER_SCRIPTS_PATH}/my-slave.cnf.template > /etc/my.cnf.d/slave.cnf
envsubst < ${CONTAINER_SCRIPTS_PATH}/my-repl-gtid.cnf.template > /etc/my.cnf.d/repl-gtid.cnf
envsubst < ${CONTAINER_SCRIPTS_PATH}/my-tuning.cnf.template > /etc/my.cnf.d/tuning.cnf

if [ ! -e "${MYSQL_DATADIR}/mysql" ]; then
  # Initialize MySQL database and wait for the MySQL master to accept
  # connections.
  initialize_database "$@"
  wait_for_mysql_master

  mysql $mysql_flags <<EOSQL
CHANGE MASTER TO MASTER_HOST='${MYSQL_MASTER_SERVICE_NAME}',MASTER_USER='${MYSQL_MASTER_USER}', MASTER_PASSWORD='${MYSQL_MASTER_PASSWORD}', MASTER_AUTO_POSITION = 1;
EOSQL

  log_info 'Sourcing post-init.sh ...'
  [ -f ${CONTAINER_SCRIPTS_PATH}/post-init.sh ] && source ${CONTAINER_SCRIPTS_PATH}/post-init.sh

  # Restart the MySQL server with public IP bindings
  shutdown_local_mysql
fi

unset_env_vars
log_volume_info $MYSQL_DATADIR
log_info 'Running final exec -- Only MySQL server logs after this point'
exec ${MYSQL_PREFIX}/libexec/mysqld --defaults-file=$MYSQL_DEFAULTS_FILE \
  --report-host=$(hostname -i) "$@" 2>&1