Openbridge allows you to add your self-managed Redshift cluster as a storage location in our system. There are a few things that need to be cared for to allow Openbridge to pipeline data to your cluster

Setting Up Redshift Databases, Schemas and Users

To create an account for Openbridge you must be an admin Redshift user with the correct permissions.

First, Test Your Connection

Let's run a quick test to see if you can connect. This command leverages PSQL or the Postgres command-line utility, to verify your connection details:

psql -h *****.us-east-1.redshift.amazonaws.com -p 5439 -U {{username}} -d {{databasename}} \d

Use your host, user, password, and database name. Did you see a list of tables? Ok, we are off to a good start!

Create Database

The next set of commands assumes you are connected via PSQL, or some other tool, to issue SQL commands to Redshift.

If you want to use a different database then the default one created when your cluster was configured, then you can run:

create database openbridge;

This will create a new database in your cluster for Openbridge to use.

To verify the database exists you can run: select datname, datdba, datconnlimit from pg_database_info where datdba > 1;

This should show something like this:

 datname     | datdba | datconnlimit
-------------+--------+-------------
 admin       |    100 | UNLIMITED  
 reports     |    100 | 100        
 openbridge  |    100 | 100  

Create User

After connecting to your cluster and database, run this command to create the user:

create user {{username}} with password '{{userpassword}}';

Here is another example. How you create users will be up to your own policies and preferences:

create user name_surname with password 'P455WORD' NOCREATEDB IN GROUP read_only_users;

To verify that the user was created you can run;

select * from pg_user_info;

You should see your new user listed:

usename   | usesysid | usecreatedb | usesuper | usecatupd | passwd
-----------+----------+-------------+----------+-----------+----------
rdsdb     |        1 | true        | true     | true      | ********      
adminuser |      100 | true        | true     | false     | ********  
username  |      102 | true        | false    | false     | ********  

Assign the CREATE permissions for {{username}} on openbridge. The database can be the one you created with the command above or the name of the database you created when you launched the cluster:

grant create on database openbridge to {{username}};

To alter default privileges you can use the following query:

ALTER DEFAULT PRIVILEGES IN SCHEMA {{schema}} GRANT SELECT ON TABLES TO group {{groupname}};

To grant privileges on particular you can get a few of examples from Postgresql 8.0 documentation: https://www.postgresql.org/docs/8.0/static/sql-grant.html

Create Schema

Next, let's make sure you have a schema for Openbridge to use in openbridge:

create schema if not exists openbridge authorization {{userpassword}};

To validate the user has the correct permissions;

select nspname as schema, usename as owner from pg_namespace, pg_user where pg_namespace.nspowner = pg_user.usesysid and pg_user.usename ='{{username}}';

You should see something like this:

name   |  owner
----------+----------
openbridge | username
(1 row)

If the schema already exists, then we want to make sure the correct permissions are granted to {{username}} on the schema:

grant all on schema openbridge to {{username}};

Lastly, see the default search path:

ALTER USER {{username}} SET search_path="openbridge";

This allows us to correctly route data to the schema you set up for us.

IMPORTANT: If these steps are missed or misconfigured, our ability to connect or write data will be impacted.

Using Pre-Built Redshift Configuration File

To simplify the process of getting everything set up we have included a SQL statement below: 

/*
You will want to replace {{username}}, {{mydatabase}}, {{userpassword}} with your correct values
*/
create database {{mydatabase}};
\connect {{mydatabase}}
create user {{username}} with password '{{userpassword}}';
grant create on database {{mydatabase}} to {{username}};
create schema if not exists openbridge authorization {{username}};
grant all on schema openbridge to {{username}};
ALTER USER {{username}} SET search_path="openbridge";

Using psql you connect to Redshift with your admin user. You would run something like this:

psql -h *****.us-east-1.redshift.amazonaws.com -p 5439 -U username -q -f create-openbridge.sql

Note: You will be prompted for your password. Also, you will need to change the {{username}}, {{username}} and {{mydatabase}} to the values that reflect your system/preferences.

Configure Amazon Redshift Firewall

Depending on your Amazon settings, you will need to grant Openbridge access to your Redshift instance via the security group. Please review the Amazon Redshift documentation which describes how to allow us access to your cluster.

52.54.227.22 and 52.2.68.68 

If you are familiar with configuring security groups, here is a summary of steps:

  • Navigate to the Redshift Management Console.
  • Select Clusters from the navigation.
  • Click on the cluster you want to connect (if you have more than one).
  • Click on the name of the security group. You’ll see a list of authorized connections. Click the blue Add Connection Type button in the upper left.
  • Select CIDR/IP from the Connection Type dropdown, and paste the address 52.54.227.22/32 in the CIDR/IP to Authorize field.
  • Click the blue Authorize button.

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