ReleaseEngineering/How To/Add New AWS Subnets

Below you can find the steps to add new aws subnests

Create new subnets

• Add subnets to https://github.com/mozilla/build-cloud-tools/blob/master/configs/subnets.yml
  • run `scripts/aws_manage_subnets.py configs/subnets.yml` from aws-manager server

Please check in AWS the new VPC subnets

More details bug 1165432 or bug 1239263 and notes here https://github.com/mozilla/build-cloud-tools/pull/72

Update firewall rules

• Open bugs with netops to include new flows bug 1254144
• Add the subnets to https://github.com/mozilla/build-cloud-tools/blob/master/configs/securitygroups.yml

NOTE: After the firewall rules has been added by netops team and the new subnets in securitygroups.yml, the changes will be applied overnight

• Update firewall tests to include new subnets (private repo releng/firewall-tests) and ensure tests pass after netops has made the changes ( more details https://mana.mozilla.org/wiki/display/IT/How+to+Run+Flow+Tests )

Increase size of the pool

• Updated the size limit https://github.com/ciobancai/build-cloud-tools/blob/master/configs/watch_pending.cfg

Add the new platforms in build-clout-tolls

tst-linux64

• Add the new subnets for tst-linux64: https://github.com/mozilla/build-cloud-tools/blob/master/configs/tst-linux64