We'll start by setting up REX-Ray manually. If it turns out to be a good solution for our stateful services, we'll move it to Packer and Terraform configurations. Another reason for starting with a manual setup is to give you a better understanding how it works.
Let's get going.
Besides the AWS access keys and the region that we already used quite a few times, we'll also need the ID of the security group we created previously with Terraform:
terraform output security_group_id
The output should be similar to the one that follows (yours will be different):
sg-d9d4d1a4
Please copy the value. We'll need it soon.
We'll enter one of the nodes where we'll install and configure REX-Ray:
ssh -i devops21.pem ...
