if [[-z which docker]]; then
	apt-get install docker.io
fi

read -p "Nome do docker com o BD master?" NAMEDOCKERMASTER
read -p "Nome do docker com o BD slave?" NAMEDOCKERSLAVE
read -p "Diretório de espelho para os BD(s) ?" DIRDOCKER
read -p "URL para o BD [ $NAMEDOCKERMASTER ] ?" URLMASTER
read -p "URL para o BD [ $NAMEDOCKERSLAVE ] ?" URLSLAVE

# read -p "Senha do Usuário [ $NAMEUSER ] para o Banco de Dados [ $NAMEDATABASE ] ?" PASSUSER

mkdir -p $DIRDOCKER/$NAMEDOCKERMASTER/data $DIRDOCKER/$NAMEDOCKERMASTER/cnf
mkdir -p $DIRDOCKER/$NAMEDOCKERSLAVE/data $DIRDOCKER/$NAMEDOCKERSLAVE/cnf

cat > $DIRDOCKER/$NAMEDOCKERMASTER/cnf/config-file.cnf << EOF
# Config Settings:
[mysqld]
server-id=1
binlog_format=ROW
log-bin
EOF

cat > $DIRDOCKER/$NAMEDOCKERSLAVE/cnf/config-file.cnf << EOF
# Config Settings:
[mysqld]
server-id=2
EOF

## MASTER
# Launch master instance
docker run --name ${NAMEDOCKERMASTER} -v ${DIRDOCKER}/${NAMEDOCKERMASTER}/cnf:/etc/mysql/conf.d -v ${DIRDOCKER}/${NAMEDOCKERMASTER}/data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=root -d mysql:5.7
echo "[$NAMEDOCKERMASTER] - Create OK"
sleep 35

# Create replication user
docker exec ${NAMEDOCKERMASTER} 'mysql' -uroot -proot -vvv -e"GRANT REPLICATION SLAVE ON *.* TO repl@'%' IDENTIFIED BY 'slavepass'"
echo "[$NAMEDOCKERMASTER] - User para Replicar OK"

#list vars of (master_log_file and master_log_pos)
docker exec -ti $NAMEDOCKERMASTER 'mysql' -uroot -proot -e"SHOW MASTER STATUS"
BINMASTER=$(docker exec -ti $NAMEDOCKERMASTER 'mysql' -uroot -proot -e"SHOW MASTER STATUS" | grep -Eoh "([A-Za-z0-9]*)-bin.[0-9]{6}")
BINSIZE=$(docker exec -ti $NAMEDOCKERMASTER 'mysql' -uroot -proot -e"SHOW MASTER STATUS" | grep -Eoh "[[:space:]]([0-9]+)[[:space:]]")
BINSIZE=${BINSIZE//[[:space:]]/}

echo "[$NAMEDOCKERMASTER] - BIN FILE [$BINMASTER] BIN SIZE [$BINSIZE]"

##SLAVE
docker run --name $NAMEDOCKERSLAVE -d -v $DIRDOCKER/$NAMEDOCKERSLAVE/cnf:/etc/mysql/conf.d -v $DIRDOCKER/$NAMEDOCKERSLAVE/data:/var/lib/mysql --link $NAMEDOCKERMASTER:mysql -e MYSQL_ROOT_PASSWORD=root -d mysql:5.7
echo "[$NAMEDOCKERSLAVE] - Create OK"
sleep 35

# (in command SHOW MASTER STATUS in $NAMEDOCKERMASTER) master_log_file="4a85a85e7662-bin.000003",master_log_pos=437
docker exec -ti $NAMEDOCKERSLAVE 'mysql' -uroot -proot -e"change master to master_host='mysql',master_user='repl',master_password='slavepass',master_log_file='${BINMASTER}',master_log_pos=${BINSIZE};" -vvv
echo "[$NAMEDOCKERSLAVE] - ACESSO PARA O MASTER"

sleep 35

# Start replication
docker exec -ti $NAMEDOCKERSLAVE 'mysql' -uroot -proot -e"START SLAVE;" -vvv

# Verify replication is running OK
#docker exec -ti $NAMEDOCKERSLAVE 'mysql' -uroot -proot -e"SHOW SLAVE STATUS" -vvv

read -p "Arquivo de dump ?" DUMP

IPMASTER=$(docker inspect ${NAMEDOCKERMASTER}  | grep "\"IPAddress\"" | grep -Eoh -m 1 '([0-9.]*)')
IPSLAVE=$(docker inspect ${NAMEDOCKERSLAVE}  | grep "\"IPAddress\"" | grep -Eoh -m 1 '([0-9.]*)')

if [[ -z "$URLMASTER" ]]; then
	echo "[$NAMEDOCKERMASTER] IP = ${IPMASTER}"
else
	echo "${IPMASTER}	${URLMASTER}" >> /etc/hosts
fi

if [[ -z "$URLSLAVE" ]]; then
	echo "[$NAMEDOCKERSLAVE] IP = ${IPSLAVE}"
else
	echo "${IPSLAVE}	${URLSLAVE}" >> /etc/hosts
fi

if [[ -f $DUMP ]]; then
    docker exec ${NAMEDOCKERMASTER} 'mysql' -uroot -proot < ${DUMP}
else
    echo "[$DUMP] não é um arquivo!"
    exit 1
fi