Go supports multiple concurrency models, this diagram shows what actually want to implement, it parallelises 3 long running operations, generally these are calls to external services, for testing purposes these external call are mocked with different random delays (1-50 ms) and there is a restriction the whole service execution time cannot last more than 20ms.
Using two factor authentication with the AWS CLI is sometimes a pain, you need to get a new token every N minutes then parse the result of this operation and create the corresponding environment variables, I’ve installed the oath-toolkit and configured the AWS CLI to get these OTP dynamically.
I’ve got some problems with Minikube and Virtualbox, everytime I close my laptop it stops working and I need to restart, delete, start, reboot, etc. it’s not very stable for this use case. I’ve installed the HyperKit driver and configured Minikube to use this instead the default Virtualbox.
With the new NAT Gateway this looks like something of the past, but recently I had to configure a NAT instance in our deployment. This Cloudformation configuration creates an autoscaling group with 1 instance allows recovery. The following diagram shows the resources created by the stack.
