#!/bin/bash
#
# This is an entrypoint that runs the MySQL server in the 'master' mode.
#
export_vars=$(cgroup-limits); export $export_vars
source ${CONTAINER_SCRIPTS_PATH}/common.sh
set -eu

export MYSQL_RUNNING_AS_MASTER=1

[ -f ${CONTAINER_SCRIPTS_PATH}/validate_replication_variables.sh ] && source ${CONTAINER_SCRIPTS_PATH}/validate_replication_variables.sh
[ -f ${CONTAINER_SCRIPTS_PATH}/validate_variables.sh ] && source ${CONTAINER_SCRIPTS_PATH}/validate_variables.sh

# The 'server-id' for master needs to be constant
export MYSQL_SERVER_ID=1
log_info "The 'master' 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-master.cnf.template > /etc/my.cnf.d/master.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 [ ! -d "$MYSQL_DATADIR/mysql" ]; then
  initialize_database "$@"
else
  start_local_mysql "$@"
fi

log_info 'Setting passwords ...'
[ -f ${CONTAINER_SCRIPTS_PATH}/passwd-change.sh ] && source ${CONTAINER_SCRIPTS_PATH}/passwd-change.sh

# Setup the 'master' replication on the MySQL server
mysql $mysql_flags <<EOSQL
  GRANT REPLICATION SLAVE ON *.* TO '${MYSQL_MASTER_USER}'@'%' IDENTIFIED BY '${MYSQL_MASTER_PASSWORD}';
  GRANT SELECT ON replication.* TO '${MYSQL_MASTER_USER}'@'%' IDENTIFIED BY '${MYSQL_MASTER_PASSWORD}';
  FLUSH PRIVILEGES;
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
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 "$@" 2>&1