I work at a social media platform for everything related to tattoos, and here is a list of the most important automation tools that we use and for what:

* Terraform to automate infrastructure such as github accounts, email accounts and AWS infrastructure and google calendars etc.

* Ansible for all provision and configuration management.

* Codeship as CI/CD for automatic packaging and deployment of docker images. Mainly using official base images with little to no repacking, only reconfiguration.

* StylyCI to correct codestyling

* AWS Autoscale groups for autoscaling.

* Makefiles for automating local environment setup and "nice-to-have" operations