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.. _sqs_tut: | ||
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======================================= | ||
An Introduction to boto's RDS interface | ||
======================================= | ||
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This tutorial focuses on the boto interface to the Relational Database Service | ||
from Amazon Web Services. This tutorial assumes that you have boto already | ||
downloaded and installed, and that you wish to setup a MySQL instance in RDS. | ||
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Creating a Connection | ||
--------------------- | ||
The first step in accessing RDS is to create a connection to the service. | ||
The recommended method of doing this is as follows:: | ||
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>>> import boto.rds | ||
>>> conn = boto.rds.connect_to_region( | ||
... "us-east-1", | ||
... aws_access_key_id='<aws access key'>, | ||
... aws_secret_access_key='<aws secret key>') | ||
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At this point the variable conn will point to an RDSConnection object in the | ||
US-EAST-1 region. Bear in mind that just as any other AWS service, RDS is | ||
region-specific. In this example, the AWS access key and AWS secret key are | ||
passed in to the method explicitely. Alternatively, you can set the environment | ||
variables: | ||
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* ``AWS_ACCESS_KEY_ID`` - Your AWS Access Key ID | ||
* ``AWS_SECRET_ACCESS_KEY`` - Your AWS Secret Access Key | ||
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and then simply call:: | ||
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>>> import boto.rds | ||
>>> conn = boto.rds.connect_to_region("us-east-1") | ||
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In either case, conn will point to an RDSConnection object which we will | ||
use throughout the remainder of this tutorial. | ||
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Starting an RDS Instance | ||
------------------------ | ||
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Creating a DB instance is easy. You can do so as follows:: | ||
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>>> db = conn.create_dbinstance("db-master-1", 10, 'db.m1.small', 'root', 'hunter2') | ||
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This example would create a DB identified as ``db-master-1`` with 10GB of | ||
storage. This instance would be running on ``db.m1.small`` type, with the login | ||
name being ``root``, and the password ``hunter2``. | ||
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To check on the status of your RDS instance, you will have to query the RDS connection again:: | ||
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>>> instances = conn.get_all_dbinstances("db-master-1") | ||
>>> instances | ||
[DBInstance:db-master-1] | ||
>>> db = instances[0] | ||
>>> db.status | ||
u'available' | ||
>>> db.endpoint | ||
(u'db-master-1.aaaaaaaaaa.us-east-1.rds.amazonaws.com', 3306) | ||
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Creating a Security Group | ||
------------------------- | ||
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Before you can actually connect to this RDS service, you must first | ||
create a security group. You can add a CIDR range or an :py:class:`EC2 security | ||
group <boto.ec2.securitygroup.SecurityGroup>` to your :py:class:`DB security | ||
group <boto.rds.dbsecuritygroup.DBSecurityGroup>` :: | ||
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>>> sg = conn.create_dbsecurity_group('web_servers', 'Web front-ends') | ||
>>> sg.authorize(cidr_ip='10.3.2.45/32') | ||
True | ||
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You can then associate this security group with your RDS instance:: | ||
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>>> db.modify(security_groups=[sg]) | ||
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Connecting to your New Database | ||
------------------------------- | ||
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Once you have reached this step, you can connect to your RDS instance as you | ||
would with any other MySQL instance:: | ||
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>>> db.endpoint | ||
(u'db-master-1.aaaaaaaaaa.us-east-1.rds.amazonaws.com', 3306) | ||
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% mysql -h db-master-1.aaaaaaaaaa.us-east-1.rds.amazonaws.com -u root -phunter2 | ||
mysql> | ||
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Making a backup | ||
--------------- | ||
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You can also create snapshots of your database very easily:: | ||
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>>> db.snapshot('db-master-1-2013-02-05') | ||
DBSnapshot:db-master-1-2013-02-05 | ||
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Once this snapshot is complete, you can create a new database instance from | ||
it:: | ||
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>>> db2 = conn.restore_dbinstance_from_dbsnapshot( | ||
... 'db-master-1-2013-02-05', | ||
... 'db-restored-1', | ||
... 'db.m1.small', | ||
... 'us-east-1') | ||
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