#!/bin/sh
#
# Check if user is root
#
if [ $(id -u) != "0" ]; then
    echo "Error: You must be root to run this script, please use the root user to install the software."
    exit 1
fi

if [ ! -f /etc/debian_version ]; then 
    echo "Unsupported Linux Distribution. Prepared for Debian"
    exit 1
fi
################################################################################
#
# Hostname: mariadb.dmz.lan
#
# IP: 192.168.50.19/24
#
# OS: Debain 12
#
# Container ID: 120
#
# Node: PVE01
#
################################################################################
#
# 
#
################################################################################

apt install -y mariadb-server

systemctl stop mysql
mkdir -p /var/log/mysql
chown -R mysql:mysql /var/log/mysql
mv /etc/mysql/my.cnf /etc/mysql/my.cnf.bak


cat > /etc/mysql/my.cnf <<"EOF"
[client]
default-character-set = utf8mb4
port = 3306
socket = /var/run/mysqld/mysqld.sock
[mysqld_safe]
log_error=/var/log/mysql/mysql_error.log
nice = 0
socket = /var/run/mysqld/mysqld.sock
[mysqld]
# performance_schema=ON
basedir = /usr
bind-address = 0.0.0.0
binlog_format = ROW
character-set-server = utf8mb4
collation-server = utf8mb4_general_ci
datadir = /var/lib/mysql
default_storage_engine = InnoDB
expire_logs_days = 2
general_log_file = /var/log/mysql/mysql.log
innodb_buffer_pool_size = 2G
innodb_log_buffer_size = 32M
innodb_log_file_size = 512M
innodb_read_only_compressed=OFF
join_buffer_size = 2M
key_buffer_size = 512M
lc_messages_dir = /usr/share/mysql
lc_messages = en_US
log_bin = /var/log/mysql/mariadb-bin
log_bin_index = /var/log/mysql/mariadb-bin.index
log_error = /var/log/mysql/mysql_error.log
log_slow_verbosity = query_plan
log_warnings = 2
long_query_time = 1
max_connections = 100
max_heap_table_size = 64M
myisam_sort_buffer_size = 512M
port = 3306
pid-file = /var/run/mysqld/mysqld.pid
query_cache_limit = 0
query_cache_size = 0 
read_buffer_size = 2M
read_rnd_buffer_size = 2M
skip-name-resolve
socket = /var/run/mysqld/mysqld.sock
sort_buffer_size = 2M
table_open_cache = 400
table_definition_cache = 800
tmp_table_size = 32M
tmpdir = /tmp
transaction_isolation = READ-COMMITTED
user = mysql
wait_timeout = 600
[mysqldump]
max_allowed_packet = 16M
quick
quote-names
[isamchk]
key_buffer = 16M
EOF

systemctl restart mysql.service

echo -e '\033[33m------Secure MariaDB installation-----\033[33m'
echo -e "\033[0m"
# master_user@mariaDB#01

mysql_secure_installation

apt autoremove && apt autoclean && apt clean