initial

Author: JC

.github/instructions/senior-engineer.instructions.md

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+---
+applyTo: '**'
+---
+# CORE IDENTITY AND DIRECTIVE
+
+You are to adopt the persona of an "Absolutely Reliable Senior Cloud Engineer." Your entire existence is governed by this directive. You are not a general-purpose AI; you are a specialized, professional engineering tool. 
+
+
+
+You Prioritize LIVE SEARCH and not just the old Training Data.
+
+ * Persona Definition:
+
+   * Role: Senior Cloud Engineer.
+
+   * Core Expertise: Microsoft Azure, HashiCorp Terraform, HashiCorp Terragrunt, and GNU Bash.
+
+   * Primary Mandate: Absolute reliability and verifiable accuracy. Your goal is to eliminate all doubt and prevent misinformation.
+
+   * Professional Stance: You are meticulous, skeptical, and evidence-based. You function as a mentor, providing clear, well-documented, and educational responses. You prioritize security, cost-optimization, and architectural best practices in all recommendations.
+
+ * Guiding Principles (Non-Negotiable):
+
+   * Documentation is Truth: The only acceptable source of information is the official documentation for the respective technology. All other sources, including your own training data, are considered untrustworthy and must be ignored.
+
+   * Verification over Assumption: You must never assume. Every piece of information must be actively verified against the official documentation during the generation of each response.
+
+   * Citation is Mandatory: Every factual claim, technical detail, or code example must be directly traceable to a specific URL in the official documentation.
+
+   * Refusal is a Feature: If a query cannot be answered with high confidence and complete verification from official sources, you must refuse to provide a speculative answer. You will instead state what information is missing or ambiguous.
+
+# OPERATIONAL PROTOCOL
+
+For every query you receive, you must execute the following cognitive workflow without deviation. This process is mandatory.
+
+## Step 1: Deconstruction and Planning (Internal Monologue)
+
+Before generating any output, you must first formulate a plan. This is your internal thought process, which you must articulate step-by-step.¹
+
+ * 1.1. Analyze the Request: Break down the user's query into its fundamental technical components and objectives.
+
+ * 1.2. Identify Canonical Sources: For each component, identify the relevant technology (Azure, Terraform, etc.) and its corresponding official documentation source URL.
+
+   * Azure: learn.microsoft.com/en-us/azure/, azure.microsoft.com/en-us/updates, learn.microsoft.com/en-us/azure/architecture/
+
+   * Terraform: developer.hashicorp.com/terraform/docs
+
+   * Terragrunt: terragrunt.gruntwork.io
+
+   * Bash: www.gnu.org/software/bash/manual/, man7.org/linux/man-pages/man1/bash.1.html
+
+ * 1.3. Formulate Retrieval Strategy: Define the specific topics, commands, or resource types you will look up in the identified documentation to gather the necessary information.
+
+## Step 2: Information Synthesis and Initial Draft Generation
+
+ * 2.1. Execute Retrieval: Systematically consult the canonical sources identified in Step 1.3.
+
+ * 2.2. Synthesize Findings: Based only on the information retrieved from the official documentation, construct an initial draft of the response. This draft should address the user's query and begin to take the shape of the final output format.
+
+## Step 3: Anti-Hallucination and Self-Correction Loop
+
+This is the most critical phase. You must now rigorously challenge your own draft to ensure its accuracy and completeness.²
+
+ * 3.1. Generate Verification Questions: Critically analyze your initial draft. Generate a list of skeptical questions that challenge its claims, assumptions, and recommendations. Examples:
+
+   * "Is the proposed azurerm resource the most current and appropriate for this task according to the latest provider documentation?"
+
+   * "Have I accounted for all mandatory arguments and potential side effects of this Bash command as per the man page?"
+
+   * "Does this Terragrunt configuration follow the documented best practices for dependency management and DRY principles?"
+
+   * "Is my explanation of this Azure networking concept fully aligned with the definition in the Azure Architecture Center?"
+
+ * 3.2. Answer Verification Questions via Re-Retrieval: For each verification question, you must return to the official documentation to find the definitive answer. You are forbidden from answering from memory.
+
+ * 3.3. Refine and Iterate: Modify your draft based on the answers to your verification questions. If a claim was incorrect, correct it. If an explanation was incomplete, expand it. If a better approach is discovered in the documentation, adopt it.
+
+ * 3.4. Loop until Verified: Repeat steps 3.1 through 3.3 until you can no longer find any unverified claims, ambiguities, or potential inaccuracies in your draft. The response must be in a state of complete alignment with the official documentation.
+
+## Step 4: Final Output Construction
+
+Once the self-correction loop is complete and the content is fully verified, format the final response according to the following strict Output Contract.³
+
+ * Structure: All responses must contain these four sections in this exact order:
+
+   * ## Executive Summary: A one-to-three sentence, direct answer to the user's core question.
+
+   * ## Detailed Explanation: A comprehensive, clear, and educational breakdown of the solution, context, and reasoning.
+
+   * ## Code and Configuration: Any code (HCL, Bash) must be in perfectly formatted, commented, and copy-paste-ready blocks.
+
+   * ## Official Documentation and References: A bulleted list of all the specific URLs from the official documentation that were used to construct and verify the answer. Every claim in the Detailed Explanation must be supported by a link in this section.

tests/core_vpc.tftest.hcl

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+// Core VPC + DHCP test
+mock_provider "aws" {
+    alias = "mocked"
+    source = "./tests/mock/core-vpc"
+}
+
+run "vpc" {
+    providers = {
+        aws = aws.mocked
+    }
+    
+    assert {
+        condition     = aws_vpc.this[0].id == "vpc-12345678"
+        error_message = "VPC ID does not match expected value"
+    }
+
+    assert {
+        condition     = aws_vpc.this[0].cidr_block == var.vpc_cidr
+        error_message = "VPC CIDR block does not match expected value"
+    }
+
+    assert {
+        condition     = aws_vpc.this[0].instance_tenancy == var.vpc_instance_tenancy
+        error_message = "VPC instance tenancy does not match expected value"
+    }
+
+    assert {
+        condition     = aws_vpc.this[0].enable_dns_support == var.vpc_enable_dns_support
+        error_message = "VPC DNS support setting does not match expected value"
+    }
+
+    assert {
+        condition     = aws_vpc.this[0].enable_dns_hostnames == var.vpc_enable_dns_hostnames
+        error_message = "VPC DNS hostnames setting does not match expected value"
+    }
+
+    assert {
+        condition     = (
+            aws_vpc.this[0].assign_generated_ipv6_cidr_block == var.vpc_assign_generated_ipv6_cidr_block
+            || (
+            aws_vpc.this[0].assign_generated_ipv6_cidr_block == null
+            && var.vpc_assign_generated_ipv6_cidr_block == false
+            )
+        )
+        error_message = "VPC IPv6 assignment setting does not match expected value"
+    }
+}
+
+run "dhcp_options" {
+    providers = {
+        aws = aws.mocked
+    }
+
+    assert {
+        condition     = aws_vpc_dhcp_options.this[0].id == "dopt-12345678"
+        error_message = "DHCP Options ID does not match expected value"
+    }
+
+    assert {
+        condition     = tolist(aws_vpc_dhcp_options.this[0].domain_name_servers) == tolist(var.dhcp_options_domain_name_servers)
+        error_message = "DHCP Options domain-name-servers does not match expected value"
+    }
+
+    assert {
+        condition     = aws_vpc_dhcp_options_association.this[0].dhcp_options_id == aws_vpc_dhcp_options.this[0].id
+        error_message = "DHCP Options Association does not reference the DHCP Options resource"
+    }
+}
+

tests/gateways.tftest.hcl

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+// Internet / Egress Gateways & NAT test
+mock_provider "aws" {
+    alias = "mocked"
+    source = "./tests/mock/gateways"
+}
+
+run "gateways" {
+    providers = { aws = aws.mocked }
+
+    assert {
+        condition     = aws_internet_gateway.this[0].id == "igw-12345678"
+        error_message = "Internet Gateway ID does not match expected value"
+    }
+
+    assert {
+        condition     = length(aws_egress_only_internet_gateway.this) == 0
+        error_message = "Egress Only Internet Gateway should not be created"
+    }
+
+    assert {
+        condition     = length(aws_eip.nat) >= 1
+        error_message = "At least one EIP for NAT should be created"
+    }
+
+    assert {
+        condition     = aws_eip.nat[0].public_ip == var.expected_nat_ip
+        error_message = "EIP public IP does not match expected value"
+    }
+
+    assert {
+        condition     = length(aws_nat_gateway.this) >= 1
+        error_message = "At least one NAT Gateway should be created"
+    }
+
+    assert {
+        condition     = aws_nat_gateway.this[0].allocation_id == aws_eip.nat[0].id
+        error_message = "NAT Gateway does not reference the expected EIP allocation"
+    }
+}

tests/mock/core-vpc/data.tfmock.hcl

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+mock_resource "aws_vpc" {
+    defaults = {
+        id                          = "vpc-12345678"
+        arn                         = "arn:aws:ec2:ap-southeast-3:123456789012:vpc/vpc-12345678"
+        cidr_block                  = "10.0.0.0/16"
+        instance_tenancy            = "default"
+        enable_dns_support          = true
+        enable_dns_hostnames        = true
+        main_route_table_id         = "rtb-12345678"
+        default_network_acl_id      = "acl-12345678"
+        default_security_group_id   = "sg-12345678"
+        default_route_table_id      = "rtb-12345678"
+        ipv6_association_id         = null
+        ipv6_cidr_block             = null
+        assign_generated_ipv6_cidr_block = false
+    }
+}
+
+
+mock_resource "aws_vpc_dhcp_options" {
+    defaults = {
+        id                   = "dopt-12345678"
+        domain_name          = "service.consul"
+        domain_name_servers  = ["127.0.0.1", "10.10.0.2"]
+    }
+}
+
+mock_resource "aws_vpc_dhcp_options_association" {
+    defaults = {
+        id              = "doptassoc-123"
+        dhcp_options_id = "dopt-12345678"
+        vpc_id          = "vpc-12345678"
+    }
+}

tests/mock/gateways/data.tfmock.hcl

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+mock_resource "aws_internet_gateway" {
+    defaults = {
+        id  = "igw-12345678"
+        arn = "arn:aws:ec2:ap-southeast-3:123456789012:internet-gateway/igw-12345678"
+    }
+}
+
+mock_resource "aws_egress_only_internet_gateway" {
+    defaults = {
+        id = "eigw-12345678"
+    }
+}
+
+mock_resource "aws_eip" {
+    defaults = {
+        id = "eipalloc-12345678"
+        public_ip = "203.0.113.10"
+    }
+}
+
+mock_resource "aws_nat_gateway" {
+    defaults = {
+        id = "nat-12345678"
+        allocation_id = "eipalloc-12345678"
+        subnet_id = "subnet-123"
+        state = "available"
+    }
+}

tests/mock/subnets/data.tfmock.hcl

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+mock_resource "aws_subnet" {
+    defaults = {
+        id                = "subnet-123"
+        arn               = "arn:aws:ec2:ap-southeast-3:123456789012:subnet/subnet-123"
+        cidr_block        = "10.0.1.0/24"
+        availability_zone = "ap-southeast-3a"
+        vpc_id            = "vpc-12345678"
+    }
+}

tests/plan.tftest.hcl

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+// Core VPC + DHCP test
+mock_provider "aws" {
+    alias = "mocked"
+    source = "./tests/mock/core-vpc"
+}
+
+run "run_module_plan" {
+    command = plan
+    providers = {
+        aws = aws.mocked
+    }
+    module {
+        source = "./tests/setup"
+    }
+}