Add ADRs for TF and Docker

adr/004-docker.md

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+# 4. Docker Containerization
+
+Date: 2024-06-03
+
+## Decision
+
+We will use [Docker](https://docs.docker.com/get-started/overview/) for containerization of our application.
+
+## Status
+
+Accepted.
+
+## Context
+
+Docker is an open platform for developing, shipping, and running applications. Docker provides the ability to package and run an application in a loosely isolated environment. Some benefits of using Docker:
+- Develop your application and its supporting components using containers.
+- The container becomes the unit for distributing and testing your application.
+- When you’re ready, deploy your application into your production environment, as a container or an orchestrated service.
+- Allows for responsive deployment and scaling.
+
+We also already use Docker in [TI](https://github.com/CDCgov/trusted-intermediary)
+
+[Reference](https://docs.docker.com/get-started/overview/)

adr/005-iac-terraform.md

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+# 5. Terraform IaC for Deploys
+
+Date: 2024-06-03
+
+## Decision
+
+Terraform will be used to deploy our infrastructure into the cloud.
+
+## Status
+
+Accepted.
+
+## Context
+
+Infrastructure as Code (IaC) is a industry best practice to get repeatable and resilient deployments of applications and
+associated infrastructure into the cloud.
+
+There are many IaC options to deploy to Azure.
+
+- [ARM Templates](https://learn.microsoft.com/en-us/azure/azure-resource-manager/templates/overview).
+- [Bicep](https://learn.microsoft.com/en-us/azure/azure-resource-manager/bicep/overview?tabs=bicep).
+- [Terraform](https://www.terraform.io).
+- [Pulumi](https://www.pulumi.com).
+- [Ansible](https://www.ansible.com).
+- [Chef](https://www.chef.io).
+- [Puppet](https://www.puppet.com).
+
+There are probably even more.
+
+Terraform is multi-cloud and multi-tool, has a full-featured DSL, tracks state and dependencies, and is agentless.
+Terraform is also used by ReportStream and [TI](https://github.com/CDCgov/trusted-intermediary)