Terraform is a fantastic tool to manage your infrastructure with simple and declarative templates; you simply describe your infrastructure in a template file that looks like:
1 2 3 4 5 6 7 8 9 10 11 12 13
terraform apply and you’re set: Terraform will boot
the infrastructure for you.
AWS recently launched their
ap-south-1 region (Mumbai, India)
and, due to the fact that’s much closer to our customer and EC2
there seems to be ~10% cheaper than in AWS Singapore (where we’re currently
hosted), we wanted to start experiment moving part of our
infrastructure to this region.
Terraform, though, has an hardcoded list of AWS regions and, since Mumbai is a recent addition, it will throw an error saying that the region isn’t supported.
The guys have already added the new region in master, so we could just wait for the next stable release to be rolled out and we’ll be able to rock it in Mumbai but, since we’re troublemakers, let’s just not wait and figure a way to boot our machines in Mumbai now :)
Since the changes are already in
master, we just need to clone the terraform
repo and build it locally:
1 2 3
That’s it — a new
terraform executable will be created with the latest code
from master (if you’re wondering, the
TF_DEV variable makes it so we
build terraform only for our architecture, else the
build.sh script will also
build for bsd, darwin, etc).
Nothing more, nothing less :) Have fun booting your infrastucture with Terraform: it’s an amazing tool built by a great company in the DevOps landscape.