ami-factory

AMI Factory to build images for SAP HANA/B1.

terraform

This directory contains the terraform to be used for deploying resources. The structure should remain the same as outlined in the template.

• modules - Directory to store modules for the AMI factory.
• data.tf - Calls all data sources.
• locals.tf - local values. Unlike input variables these should not be set directly by users of the configuration.
• main.tf - calls all modules to create resources.
• outputs.tf - contains outputs from the resources created in main.tf.
• terraform.tfvars - contains input variables to be directly set by the user.
• variables.tf - contains declarations of variables used in main.tf.
• versions.tf - contains providers and version requirements for Terraform.

There may be a case for a developer bending the rules in certain scenarios. For example, if there is a large configuration of resource specific modules, it may be cleaner and more readable for the project if these are broken out into their own _service/resource_.tf file. eg:

• iam.tf - to contain a large amount of role

This decision will be left to developer discretion and reviewed upon pull request.

Naming Conventions

General conventions

1. Use _ (underscore) instead of - (dash) everywhere (resource names, data source names, variable names, outputs, etc).
2. Prefer to use lowercase letters and numbers (even though UTF-8 is supported).

⚠️ Beware that actual cloud resources often have restrictions in allowed names. Some resources, for example, can't contain dashes, some must be camel-cased. The conventions in this readme refer to Terraform names themselves (and not physical resource names - these should follow the naming convention set out in the design).

Resource and data source arguments

1. Do not repeat resource type in resource name (not partially, nor completely):

✅  resource "aws_route_table" "public" {}

❌  resource "aws_route_table" "public_route_table" {}

Usage

$ terraform init
$ terraform plan
$ terraform apply

packer

This directory contains the packer configurations for the AMI factory