HighLoad_HomeWork/cicd/init.sh

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#!/bin/bash
until docker exec mysql_master sh -c 'export MYSQL_PWD=root; mysql -u root -e ";"'
do
echo "Waiting for mysql_master database connection..."
sleep 4
done
priv_stmt='INSTALL PLUGIN rpl_semi_sync_master SONAME "semisync_master.so"; CREATE DATABASE IF NOT EXISTS app CHARACTER SET utf8 COLLATE utf8_general_ci; GRANT ALL ON app.* TO "app"@"%" IDENTIFIED BY "app"; GRANT REPLICATION SLAVE ON *.* TO "mydb_slave_user"@"%" IDENTIFIED BY "mydb_slave_pwd"; FLUSH PRIVILEGES;'
docker exec mysql_master sh -c "export MYSQL_PWD=root; mysql -u root -e '$priv_stmt'"
until docker exec mysql_slave1 sh -c 'export MYSQL_PWD=root; mysql -u root -e ";"'
do
echo "Waiting for mysql_slave1 database connection..."
sleep 4
done
until docker exec mysql_slave2 sh -c 'export MYSQL_PWD=root; mysql -u root -e ";"'
do
echo "Waiting for mysql_slave2 database connection..."
sleep 4
done
priv_stmt='INSTALL PLUGIN rpl_semi_sync_slave SONAME "semisync_slave.so"; CREATE DATABASE IF NOT EXISTS app CHARACTER SET utf8 COLLATE utf8_general_ci; GRANT ALL ON app.* TO "app"@"%" IDENTIFIED BY "app"; FLUSH PRIVILEGES;'
docker exec mysql_slave1 sh -c "export MYSQL_PWD=root; mysql -u root -e '$priv_stmt'"
docker exec mysql_slave2 sh -c "export MYSQL_PWD=root; mysql -u root -e '$priv_stmt'"
docker-ip() {
docker inspect --format '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$@"
}
MS_STATUS=`docker exec mysql_master sh -c 'export MYSQL_PWD=root; mysql -u root -e "SHOW MASTER STATUS"' | grep mysq`
CURRENT_LOG=`echo $MS_STATUS | awk '{print $1}'`
CURRENT_POS=`echo $MS_STATUS | awk '{print $2}'`
start_slave_stmt="CHANGE MASTER TO MASTER_HOST='$(docker-ip mysql_master)',MASTER_USER='mydb_slave_user',MASTER_PASSWORD='mydb_slave_pwd',MASTER_LOG_FILE='$CURRENT_LOG',MASTER_LOG_POS=$CURRENT_POS; START SLAVE;"
start_slave_cmd='export MYSQL_PWD=root; mysql -u root -e "'
start_slave_cmd+="$start_slave_stmt"
start_slave_cmd+='"'
docker exec mysql_slave1 sh -c "$start_slave_cmd"
echo "Checking slave1 status"
docker exec mysql_slave1 sh -c "export MYSQL_PWD=root; mysql -u root -e 'SHOW SLAVE STATUS \G' | grep Slave_"
echo "Checking slave1 GTID mode"
sudo docker exec mysql_slave1 sh -c "export MYSQL_PWD=root; mysql -u root -e 'SHOW VARIABLES' | grep gtid"
echo "Checking slave1 semisync"
sudo docker exec mysql_slave1 sh -c "export MYSQL_PWD=root; mysql -u root -e 'SHOW VARIABLES' | grep semi_sync"
docker exec mysql_slave2 sh -c "$start_slave_cmd"
echo "Checking slave2 status"
docker exec mysql_slave2 sh -c "export MYSQL_PWD=root; mysql -u root -e 'SHOW SLAVE STATUS \G' | grep Slave_"
echo "Checking slave2 GTID mode"
sudo docker exec mysql_slave2 sh -c "export MYSQL_PWD=root; mysql -u root -e 'SHOW VARIABLES' | grep gtid"
echo "Checking slave2 semisync"
sudo docker exec mysql_slave2 sh -c "export MYSQL_PWD=root; mysql -u root -e 'SHOW VARIABLES' | grep semi_sync"