Yesterday (19th June 2017) we experienced issues with provisioning a certain set of AWS EC2 instance types on the Codeship Basic platform. This resulted in lack of capacity to process Codeship Basic builds and delays in processing. It appears that AWS was having capacity issues with particular instance types in the us-east-1 region, which lead to errors when our system attempted to scale up and launch new instances. To address this issue we first cast our net wider across the availability zones in the us-east-1 region, in the hopes of obtaining more resources. Once we were clear the issue persisted we switched to an instance type that was reporting more availability. We manually started lots of instances and scaled up our workers to increase our build throughput and reduce any further delays.