Amazon Relational Database Service (Amazon RDS) is a web service that makes it easier to set up, operate, and scale a relational database in the AWS Cloud.

Create a subnet groups

Go to RDS and choose subnet groups and create DB subnet group

Subnet group name mydbgroup

Description mydbgroup

Choose default VPC

Add subnets

Choose three availability zones

See the three subnets

Create

Subnet group created

Open 3306 port on EC security group

Example Create database

Choose standard database

Choose MYSQL

Engine version MYSQL 8.0.33

Choose templates free tier

DB instance identifier mysql-db

Username admin

Instance configuration db.t3.micro

Storage type General purpose SSD (gp2)

Storage auto scaling disable

Connectivity don’t connect to an compute resource

DB subnet group name mydbgroup and Public access yes

Choose existing security group Open_All and availability zone no preference

Additional configuration 3306

Password Authentication

Initial database name myrdsclass

Disable automated backups

Disable encryption

Disable auto minor version upgrade

Disable deletion protection

Create database

Here database created

Create one Amazon Linux instance open security group open 3306 port

Instance created Amazon Linux

Install MySQL on Amazon Linux 2023

Login instance as ec2-user

Root login sudo su -

Need to install mysql client

After connecting we will download the RPM file using this

sudo wget https://dev.mysql.com/get/mysql80-community-release-el9-1.noarch.rpm

Then confirm file download or not ls –lrt

sudo yum install mysql80-community-release-el9-1.noarch.rpm –y

install RPM file

sudo yum install mysql80-community-release-el9-1.noarch.rpm -y

You need the public key of mysql to install the software.

sudo rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2023

If you need to install mysql client:

sudo yum install mysql-community-client -y

If you need server:

sudo yum install mysql-community-server -y

sudo systemctl start mysqld

By default, we will not be able to connect, thus we need to modify the .cnf file to enable us log in without a password. We will do this by adding a line to the mysqld block

Edit my.cnf file

Skip-grant-tables

Restart mysql

Sudo systemctl restart mysqld

go to mysql type mysql, now logged mysql

and show databases;

Now mysql has been Installed

exit

Go to database mysql-db copy endpoint & port

Conncet mysql-db in ec2 instance

mysql -h mysql-db.cyq4y4kfne34.ap-south-1.rds.amazon.. -P 3306 -u admin -p

See the show database, now we created myrdsclass found

Use myrdsclass database

Now see the tables no tables found

Now create person table use below query

CREATE TABLE Persons (
PersonID int,
LastName varchar(255),
FirstName varchar(255),
Address varchar(255),
City varchar(255)
);

Now see persons table created.

Exit

Example Create a reader replica

DB instance identifier name is mysql-db-replica

Select db.t3.micro

Asia pacific

Storage

Disable autoscaling

Network type IPV4 and public accessible

Choose existing VPC

Disable auto minor version upgrade and create read replica

Now mysql-db-replica created

Again connect RDS database using ec2

mysql -h mysql-db.cyq4y4kfne34.ap-south-1.rds.amazon.. –P 3306 –u admin -p

Use myrdsclass and show tables one persons table found

Now create a table mithran

CREATE TABLE Mithran (

PersonID int,

LastName varchar(255),

FirstName varchar(255),

Address varchar(255),

City varchar(255)

);

Now see the tables

Exit

See the databases

Delete primary database mysql-db

Delete it

After deleted primary db then now connect replica

Now connect mysql-db-replica using Endpoint

mysql –h mysql-db-replica.cyq4y4kfne34.ap-south-1.rd.. –P 3306 –u admin -p

Now see the databases myrdsclass found

Same two tables found, so now working fine

Same two tables found, so now working fine