Amazon’s Relational Database Service (RDS) offers hosted MySQL database in the cloud.
In pre RDS era, you would have fired up an instance, installed MySQL yourself on it, configured an EBS volume so that the database data
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storage is persistent. You would have setup
a cron to snapshot your EBS volume. But RDS saves the headache of managing an EBS volume and your instance separately. It offers you installed MySQL with persistent storage. It also offers you automated database backup. And setting it up is as easy
Here is what you do to setup a database using RDS:
1) Sign up for RDS by visiting http://aws.amazon.com/rds.
2) Install RDS tools on your local machine so that you can execute RDS setup commands. You can download
the toolkit from the download page.
Installation of the client toolkit involves the following procedure:
a) Unzip the downloaded file into a suitable folder, say /home/vaibhav/software/rds-tools
c) Set AWS_RDS_HOME=/home/vaibhav/software/rds-tools in your .bashrc or execute the following command to set AWS_RDS_HOME for this session
d)Add AWS_RDS_HOME to your path by executing
e) Rename credential-file-path.template in AWS_RDS_HOME (/home/vaibhav/software/rds-tools) to any name of your choice say credentials.txt. Set AWS_CREDENTIAS_FILE variable by executing
export AWS_CREDENTIAL_FILE=<the path of the file created above - credentials.txt
3) Now let’s create a security group before creating a database instance. This is because we would like to supply this security group while creating an instance. A security group can be created by executing
rds-create-db-security-group --db-security-group-name database --db-security-group-description 'Default mysql database security group'
This will create a security group called database. If you want to connect to the mysql server from your local machine, you will need to add authorization to this group by executing
rds-authorize-db-security-group-ingress --db-security-group-name database -i 220.127.116.11/32
Here 18.104.22.168/32 is the ip address range of the network from which you want to access the database and 123456789012 is your Amazon AWS account number
4) Now create the database instance. The database instance can be created by executing the following command:
rds-create-db-instance --db-instance-identifier reporting --allocated-storage 5 --db-instance-class db.m1.small --engine MySQL5.1 --master-username master --master-user-password s0mePassw0rd --db-name MyFirstDb --availability-zone us-east-1a --preferred-maintenance-window Sun:12:00-Sun:16:00 --preferred-backup-window 10:00-12:00 --db-security-groups database --headers
There are few parameters that you need to understand very well before executing this command. The preferred-maintenance-window is
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the 4 hour time period Amazon requires to apply patches and to carry out other maintenance tasks on the database server. preferred-backup-window is the daily two hour
window in which your database will be backed up. The database won’t be down in the period, but its performance could get affected because of the backup operation. Please note that both the time periods must be specified in UTC time. If you are going to access this database from an Amazon ec2 instance then choose an availability zone that is the same as the web server so that you are not charged for the bandwidth. You should change other parameters such as the database instance type, allocated storage as per your requirement. More information on
these parameters can be obtained from the CLI reference page. The instance name will be reporting as specified.
To find out its address, you can simply execute
This command will list all the db instances with their dns names. The dns name will be something like reporting.crly0gpnhroz.us-east-1.rds.amazonaws.com. The port will also be in the output (3306). You can use this dns name and
port to connect to the database using any mysql client.