At this time AWS doesn’t provide an RDS type for MongoDB. So in order to have a MongoDB server on the AWS cloud, you have to install it manually on an EC2 instance.
The full documentation for installing a MongoDB instance on an AWS EC2 can be seen at: https://docs.mongodb.com/v3.0/tutorial/install-mongodb-on-amazon/. Here’s a quick summary though.
First you’ll need to create a Linux EC2 server. Once you have the server created, log in to the machine through secure shell. Drop into root shell using the following command:
sudo su
Next you’ll need to create the repository info for yum to use to download the prebuilt MongoDB packages. You’ll create a file at /etc/yum.repos.d/mongodb-org-3.0.repo:
vi /etc/yum.repos.d/mongodb-org-3.0.repo
And copy/paste the repository:
[mongodb-org-3.0] name=MongoDB Repository baseurl=https://repo.mongodb.org/yum/amazon/2013.03/mongodb-org/3.0/x86_64/ gpgcheck=0 enabled=1
Save and exit from vi. And type in the following command to install:
yum install -y mongodb-org
And that’s it! Now you have MongoDB installed on your EC2.
Next, to turn on compression, you’ll need to edit /etc/mongod.conf
vi /etc/mongod.conf
Scroll down to the “storage” directive, and add in this configuration:
engine: "wiredTiger"
wiredTiger:
collectionConfig:
blockCompressor: "zlib"
Now any collections you create will be compressed with zlib, which provides the best compression currently.
To turn on your MongoDB instance by typing in this command:
service mongod start
And of course you’ll want to custom configure your MongoDB instance (or not). You can find several guides and tutorials to do that online.