Priam

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Priam is a Netflix OSS co-process providing for the management of an Apache Cassandra ring, including token management, and centralized configuration.

1. Create Priam S3 bucket
2. Configure local/site.yml and build AMI
3. Create IAM role
4. Create security group
5. Launch Exhibitor Cluster

## Step 1: Create Priam S3 bucket

1. Open the AWS S3 console
2. Click "Create Bucket", provide a name, and ensure you select the correct region where you will deploy Exhibitor.

The same S3 bucket can be used for multiple cassandra clusters, each using a folder within for their backups.

## Step 2: Configure local/site.yml and build AMI

1. Edit local/site.yml in your Buri build tree and ensure the following is set as needed:

   # The bucket name setup in [step 1](#step1)
   priam_s3_bucket: "vfs-priam"
   # The unique name for this cluster
   priam_clustername: "devapicounters"
   # If you are using VPC or not
   priam_vpc: true
   # If you are going to run the ring in multiple regions
   priam_multiregion_enable: false
   # Should ALWAYS be set to Ec2MultiRegionSnitch regardless of your deployment plans
   # UNLESS you are in a VPC, in which case this MUST be set to Ec2Snitch
   priam_endpoint_snitch: "org.apache.cassandra.locator.Ec2MultiRegionSnitch"
   # List the zones you will run the cluster in here.
   priam_zones_available: "us-east-1a,us-east-1d,us-east-1e"
   

2. Build the AMI for Exhibitor

   ./resnap.sh <base-pvm-ami-ID> exhibitor