There are several reasons why you might want to use policy-as-code in your infrastructure:
1. Improved security: By defining and enforcing your infrastructure policies as code, you can ensure that your infrastructure adheres to your desired standards and practices, which can help improve security and reduce the risk of vulnerabilities.
2. Automation: Policy-as-code tools allow you to automate the enforcement of your policies, reducing the risk of human error and improving your infrastructure's reliability.
3. Collaboration: By storing your policies as code, you can track changes to your policies over time and collaborate with others on policy development. This can make sharing and maintaining your policies easier across teams and projects.
4. Increased transparency: Storing your policies as code can make them more transparent and easier to understand for all stakeholders, which can help improve communication and reduce the risk of misunderstandings.
You can design your Policy as code workflow by using Terraform’s validate`& plan commands as well as the Open Policy Agent (OPA):
1. The terraform validate can be used to validate the syntax of your Terraform configuration files. It checks for correct formatting and usage of Terraform language constructs and verifies that all necessary variables are set.
2. The terraform plan is used to create an execution plan for your infrastructure. It shows you what resources will be created, modified, or destroyed when you apply your changes. This is useful for previewing and debugging your infrastructure changes before they are applied.
3. The Open Policy Agent (OPA) is an open-source, general-purpose policy engine that can enforce policies on your infrastructure. OPA allows you to define your policies as code and implement them automatically, making it easier to manage and maintain your policies over time.
In the scenario that you see in the video, we used OPA to define and enforce naming conventions to make it easy for other team members to understand the code they're reading, as well as make it easier to maintain.
Do you have other tools that you recommend? Please go ahead and add in the comments!
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