Fargate Runner Best Practices Deployment Kit
### Problem
* Setting up for Fargate runner has many manual steps and some of the documentation is not clear on the container requirements.
### Existing SA Asks
* Large Customer asked for a Fargate Runner Best Practices Sesssion; https://gitlab.my.salesforce.com/00161000010eIz5
### Implementation
* Enhance and utilize existing runner on AWS GE here: https://gitlab.com/guided-explorations/gitlab-deployment/gitlab-runner-autoscaling-aws-asg
* Add the minimal Fargate Cluster cloudformation template that works with the runner. Seems like it needs the cluster definition (but no ASG or other instance-like stuff) and a task definition pointed to a container
* Provide a sample dockerfile that builds out a fargate ready build container and actually does that in the target repo
* MVC1: point to a gitlab container, not ECR
* MVC2: consider showing an ECR example along with CF code to create the ECR and permissions to it?
* Create a runner script for the fargate manager node so it can be in an single instance ASG
issue