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feat: begins the work to support single vs multi root_module_structure #17

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merged 14 commits into from
Dec 26, 2024

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@Gowiem Gowiem commented Dec 21, 2024

what

  • This is a first cut at supporting MultiInstance vs SingleInstance root module structures.
  • Adds an additional example for the single-instance work.
  • Both examples are now applied to our masterpoint Spacelift tenant.
  • Work on the README to explain Multi vs Single. Please read and provide critical feedback.
  • Includes an update to renovate to automerge PRs for non major revs.

why

  • People structure their terraform and root modules in different ways. We need to support both.

references

Summary by CodeRabbit

  • New Features

    • Introduced automated merging of specific dependency updates in configuration.
    • Added support for AWS integration with new settings.
    • New variable for configuring the length of generated names.
    • New module for automation with AWS integration settings.
    • Enhanced stack settings for better management and description.
  • Bug Fixes

    • Updated variable names for clarity and consistency.
  • Documentation

    • Improved README documentation for better clarity on module usage and structure.
    • Added examples and distinctions between MultiInstance and SingleInstance structures.
  • Chores

    • Updated GitHub Actions workflow with a new environment variable for API key endpoint.
    • Removed outdated backend configuration file.

@Gowiem Gowiem self-assigned this Dec 21, 2024
@Gowiem Gowiem force-pushed the feat/structure-modes-take1 branch from c17487a to c693d93 Compare December 23, 2024 01:25
@Gowiem Gowiem marked this pull request as ready for review December 23, 2024 03:54
@Gowiem Gowiem requested a review from a team as a code owner December 23, 2024 03:54
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coderabbitai bot commented Dec 23, 2024

Walkthrough

This pull request introduces comprehensive changes to the Spacelift Automation module, focusing on enhancing configuration management, documentation, and testing. The modifications include updates to Renovate configuration, README documentation, example root modules, and test cases. The primary goal is to improve the flexibility of stack management by introducing support for both MultiInstance and SingleInstance structures, along with refined configuration handling and expanded testing coverage.

Changes

File Change Summary
.github/renovate.json5 Added package rules for automatic merging of minor, patch, pin, and digest updates
README.md Enhanced documentation for Spacelift Stack management and module usage
main.tf Introduced logic for handling MultiInstance and SingleInstance stack structures
variables.tf Added root_module_structure variable with validation
examples/ Added multiple new root module examples with stack configurations
tests/ Expanded test cases for single-instance and multi-instance scenarios

Suggested reviewers

Possibly related PRs

  • Terraform Spacelift Automation module initial version configuration
  • Workflow enhancements for releases and reviews
  • Drift detection improvements
  • Spacelift AWS integrations module
  • Spacelift Spaces management
  • Child module template documentation updates
  • AWS Tailscale state management integration

Poem

🚀 Automation's dance, a Terraform delight,
Stacks and modules taking flight
MultiInstance, SingleInstance blend
Configuration's creative trend
Code evolves with playful might! 🌈


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Actionable comments posted: 2

🧹 Nitpick comments (15)
examples/single-instance/root-modules/random-pet/main.tf (1)

1-3: Validate input constraints for random_pet resource.
While referencing var.length is straightforward, you might consider adding a safeguard in the variable definition to ensure it’s within a sensible range. This can help avoid errors or overly long names.

examples/single-instance/root-modules/random-pet/variables.tf (1)

1-4: Add validation checks for variable length.
Defining a validation block can help catch misuse (e.g., negative numbers). This ensures the generated random pet names are consistently sized.

For example:

variable "length" {
  description = "The length of the random name"
  type        = number
  validation {
    condition     = var.length > 0
    error_message = "length must be greater than 0."
  }
}
tests/fixtures/single-instance/root-module-a/stack.yaml (1)

1-6: Encourage thorough test coverage of before_init commands.
Adding a test case to confirm that the before_init commands execute successfully during stack creation can help ensure that future modifications don’t break this functionality.

examples/single-instance/root-modules/random-pet/stack.yaml (1)

1-7: LGTM! Consider adding environment label

The stack configuration is well-structured with clear settings. Consider adding an environment label (e.g., 'dev', 'prod') to help with stack organization and filtering.

 stack_settings:
   manage_state: true
   description: This stack generates random pet names
   labels:
     - common_label
     - stack_specific_label
+    - environment:dev
examples/single-instance/root-modules/spacelift-automation/main.tf (1)

4-6: Enhance GitHub Enterprise configuration

The GitHub Enterprise configuration could benefit from additional settings for better control and clarity.

 github_enterprise = {
   namespace = "masterpointio"
+  branch = "main"
+  webhook_enabled = true
 }
examples/single-instance/root-modules/spacelift-automation/backend.tf.json (1)

1-18: Consider using native HCL instead of JSON

While JSON is valid for Terraform configuration, HCL is more maintainable and supports comments and expressions natively.

terraform {
  backend "s3" {
    workspace_key_prefix = "terraform-spacelift-automation"
    acl                 = "bucket-owner-full-control"
    bucket              = var.state_bucket
    dynamodb_table      = var.state_lock_table
    encrypt             = true
    key                 = "single-instance.tfstate"
    region             = "us-east-1"
    
    assume_role {
      role_arn = var.state_role_arn
    }
  }
}
tests/main.tftest.hcl (2)

6-6: Consider making the test path more explicit

The path clearly indicates multi-instance testing, which is good. However, consider using a more descriptive directory name like multi-instance-root-modules to better reflect its purpose.


Line range hint 1-14: Add root_module_structure variable to test configuration

For completeness and explicit testing, consider adding the root_module_structure variable to match the test scenario:

 variables {
   root_modules_path = "./tests/fixtures/multi-instance"
+  root_module_structure = "MultiInstance"
   github_enterprise = {
     namespace = "masterpointio"
   }
   # ... rest of variables
 }
tests/single-instance.tftest.hcl (2)

39-42: Strengthen the single instance validation

The current assertion only checks for length and presence. Consider adding more specific validation:

 assert {
-  condition = length(local._root_module_yaml_decoded["root-module-a"]) == 1 && local._root_module_yaml_decoded["root-module-a"]["default"] != null
+  condition = (
+    length(local._root_module_yaml_decoded["root-module-a"]) == 1 &&
+    local._root_module_yaml_decoded["root-module-a"]["default"] != null &&
+    !contains(keys(local._root_module_yaml_decoded["root-module-a"]), "test")
+  )
   error_message = "_root_module_yaml_decoded is not a single instance: ${jsonencode(local._root_module_yaml_decoded)}"
 }

116-119: Add error details to before_init assertion message

Consider enhancing the error message to show which specific steps are missing:

 assert {
   condition = contains(local.before_init["root-module-a"], "echo 'Hello'") && contains(local.before_init["root-module-a"], "echo 'World'")
-  error_message = "Before_init steps were not added to the stack: ${jsonencode(local.before_init)}"
+  error_message = "Missing required before_init steps. Expected 'echo Hello' and 'echo World'. Got: ${jsonencode(local.before_init["root-module-a"])}"
 }
main.tf (2)

72-85: Consider adding type constraints for better code clarity.

The implementation is solid, but consider adding type constraints to the local variables to make the expected data structure more explicit.

-  _multi_instance_root_module_yaml_decoded = {
+  _multi_instance_root_module_yaml_decoded : map(map(any)) = {

242-244: LGTM! Consider enhancing tfvars documentation.

The implementation correctly handles tfvars differently for each structure type. Consider adding a comment block above this section to explain the rationale.

+  # tfvars handling differs between MultiInstance and SingleInstance:
+  # - MultiInstance: Copies workspace-specific tfvars files
+  # - SingleInstance: Expects auto.tfvars in the root module
README.md (3)

31-32: Consider adding migration guidance.

The documentation clearly explains the MultiInstance structure, but consider adding guidance for users who might want to migrate between structures.


100-105: Enhance SingleInstance documentation with pros/cons.

While the documentation warns against SingleInstance as less flexible, it would be helpful to explicitly list the pros and cons to help users make an informed decision.


188-189: Add link to code for settings reference.

The documentation mentions "See the code for full details" - consider adding a direct link to the relevant section of the code or listing the most commonly used settings here.

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📒 Files selected for processing (26)
  • .github/renovate.json5 (1 hunks)
  • README.md (5 hunks)
  • examples/complete/components/spacelift-automation/main.tf (0 hunks)
  • examples/complete/components/spacelift-automation/stacks/common.yaml (0 hunks)
  • examples/complete/components/spacelift-automation/tfvars/example.tfvars (0 hunks)
  • examples/complete/components/spacelift-automation/variables.tf (0 hunks)
  • examples/single-instance/root-modules/random-pet/default.auto.tfvars (1 hunks)
  • examples/single-instance/root-modules/random-pet/main.tf (1 hunks)
  • examples/single-instance/root-modules/random-pet/stack.yaml (1 hunks)
  • examples/single-instance/root-modules/random-pet/variables.tf (1 hunks)
  • examples/single-instance/root-modules/random-pet/versions.tf (1 hunks)
  • examples/single-instance/root-modules/rds-cluster-dev/main.tf (1 hunks)
  • examples/single-instance/root-modules/rds-cluster-dev/stack.yaml (1 hunks)
  • examples/single-instance/root-modules/rds-cluster-dev/versions.tf (1 hunks)
  • examples/single-instance/root-modules/rds-cluster-prod/main.tf (1 hunks)
  • examples/single-instance/root-modules/rds-cluster-prod/stack.yaml (1 hunks)
  • examples/single-instance/root-modules/rds-cluster-prod/versions.tf (1 hunks)
  • examples/single-instance/root-modules/spacelift-automation/backend.tf.json (1 hunks)
  • examples/single-instance/root-modules/spacelift-automation/main.tf (1 hunks)
  • examples/single-instance/root-modules/spacelift-automation/stack.yaml (1 hunks)
  • examples/single-instance/root-modules/spacelift-automation/versions.tf (1 hunks)
  • main.tf (6 hunks)
  • tests/fixtures/single-instance/root-module-a/stack.yaml (1 hunks)
  • tests/main.tftest.hcl (1 hunks)
  • tests/single-instance.tftest.hcl (1 hunks)
  • variables.tf (2 hunks)
💤 Files with no reviewable changes (4)
  • examples/complete/components/spacelift-automation/tfvars/example.tfvars
  • examples/complete/components/spacelift-automation/variables.tf
  • examples/complete/components/spacelift-automation/main.tf
  • examples/complete/components/spacelift-automation/stacks/common.yaml
✅ Files skipped from review due to trivial changes (10)
  • examples/single-instance/root-modules/rds-cluster-prod/stack.yaml
  • examples/single-instance/root-modules/random-pet/default.auto.tfvars
  • examples/single-instance/root-modules/rds-cluster-dev/stack.yaml
  • examples/single-instance/root-modules/spacelift-automation/versions.tf
  • examples/single-instance/root-modules/rds-cluster-prod/versions.tf
  • examples/single-instance/root-modules/random-pet/versions.tf
  • examples/single-instance/root-modules/rds-cluster-prod/main.tf
  • examples/single-instance/root-modules/rds-cluster-dev/versions.tf
  • examples/single-instance/root-modules/spacelift-automation/stack.yaml
  • examples/single-instance/root-modules/rds-cluster-dev/main.tf
🧰 Additional context used
📓 Path-based instructions (5)
examples/single-instance/root-modules/random-pet/variables.tf (1)

Pattern **/*.tf: You're a Terraform expert who has thoroughly studied all the documentation from Hashicorp https://developer.hashicorp.com/terraform/docs and OpenTofu https://opentofu.org/docs/.
You have a strong grasp of Terraform syntax and prioritize providing accurate and insightful code suggestions.
As a fan of the Cloud Posse / SweetOps ecosystem, you incorporate many of their best practices https://docs.cloudposse.com/best-practices/terraform/ while balancing them with general Terraform guidelines.

variables.tf (1)

Pattern **/*.tf: You're a Terraform expert who has thoroughly studied all the documentation from Hashicorp https://developer.hashicorp.com/terraform/docs and OpenTofu https://opentofu.org/docs/.
You have a strong grasp of Terraform syntax and prioritize providing accurate and insightful code suggestions.
As a fan of the Cloud Posse / SweetOps ecosystem, you incorporate many of their best practices https://docs.cloudposse.com/best-practices/terraform/ while balancing them with general Terraform guidelines.

examples/single-instance/root-modules/random-pet/main.tf (1)

Pattern **/*.tf: You're a Terraform expert who has thoroughly studied all the documentation from Hashicorp https://developer.hashicorp.com/terraform/docs and OpenTofu https://opentofu.org/docs/.
You have a strong grasp of Terraform syntax and prioritize providing accurate and insightful code suggestions.
As a fan of the Cloud Posse / SweetOps ecosystem, you incorporate many of their best practices https://docs.cloudposse.com/best-practices/terraform/ while balancing them with general Terraform guidelines.

examples/single-instance/root-modules/spacelift-automation/main.tf (1)

Pattern **/*.tf: You're a Terraform expert who has thoroughly studied all the documentation from Hashicorp https://developer.hashicorp.com/terraform/docs and OpenTofu https://opentofu.org/docs/.
You have a strong grasp of Terraform syntax and prioritize providing accurate and insightful code suggestions.
As a fan of the Cloud Posse / SweetOps ecosystem, you incorporate many of their best practices https://docs.cloudposse.com/best-practices/terraform/ while balancing them with general Terraform guidelines.

main.tf (1)

Pattern **/*.tf: You're a Terraform expert who has thoroughly studied all the documentation from Hashicorp https://developer.hashicorp.com/terraform/docs and OpenTofu https://opentofu.org/docs/.
You have a strong grasp of Terraform syntax and prioritize providing accurate and insightful code suggestions.
As a fan of the Cloud Posse / SweetOps ecosystem, you incorporate many of their best practices https://docs.cloudposse.com/best-practices/terraform/ while balancing them with general Terraform guidelines.

🔇 Additional comments (6)
.github/renovate.json5 (1)

11-15: Consider adding extra safety checks before auto-merging.
Currently, all minor, patch, pin, and digest updates will be merged automatically. While this can expedite dependency management, it might be prudent to introduce a layer of manual review (e.g., requiring at least one CI pass or successful test suite) to catch any unexpected downstream issues.

If you'd like to proceed with an automated test or security check prior to merging, let me know—I'm happy to recommend additional GitHub Actions or Renovate configuration tweaks!

variables.tf (2)

1-15: Well-structured variable definition with comprehensive documentation!

The root_module_structure variable is well-defined with clear documentation explaining both options and proper validation. The default value maintains backward compatibility.


272-272: LGTM: Improved clarity in description

The updated description better reflects that multiple stacks can be created in the specified space.

tests/single-instance.tftest.hcl (1)

1-130: Well-structured test suite with comprehensive coverage!

The test suite effectively validates single-instance specific behaviors including:

  • Correct stack naming conventions
  • Default workspace handling
  • Project root path construction
  • Label management
  • Before init steps

The tests are well-organized and provide good coverage of the single-instance functionality.

main.tf (2)

28-45: LGTM! Clean implementation of root module structure handling.

The implementation elegantly handles both MultiInstance and SingleInstance structures using clear fileset patterns and conditional logic.


106-107: Verify impact on existing stacks' workspace handling.

The change to force default_tf_workspace_enabled = true for SingleInstance could affect state management if existing stacks are migrated to SingleInstance structure.

✅ Verification successful

Workspace handling changes are safe and well-tested

The codebase analysis shows this change is safe because:

  • The behavior is explicitly documented in the README
  • There are comprehensive tests covering both SingleInstance and MultiInstance workspace scenarios
  • Existing stacks already use default_tf_workspace_enabled: true in examples and test fixtures
  • The change aligns with the documented behavior where SingleInstance is meant to use a simpler configuration approach
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for existing stacks that might be affected by workspace changes

# Search for workspace configurations in stack files
rg -A 5 "terraform_workspace|default_tf_workspace_enabled" 

# Search for workspace usage in Terraform files
ast-grep --pattern 'terraform {
  $$$
  workspace {
    $$$
  }
  $$$
}'

Length of output: 10058

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Actionable comments posted: 4

📜 Review details

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Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 7002eb6 and 7c2e217.

📒 Files selected for processing (6)
  • examples/complete/components/spacelift-automation/main.tf (1 hunks)
  • examples/complete/components/spacelift-automation/tfvars/example.tfvars (1 hunks)
  • examples/single-instance/root-modules/spacelift-automation-example2/backend.tf.json (1 hunks)
  • examples/single-instance/root-modules/spacelift-automation-example2/main.tf (1 hunks)
  • examples/single-instance/root-modules/spacelift-automation-example2/stack.yaml (1 hunks)
  • examples/single-instance/root-modules/spacelift-automation-example2/versions.tf (1 hunks)
✅ Files skipped from review due to trivial changes (1)
  • examples/single-instance/root-modules/spacelift-automation-example2/stack.yaml
🚧 Files skipped from review as they are similar to previous changes (2)
  • examples/complete/components/spacelift-automation/main.tf
  • examples/complete/components/spacelift-automation/tfvars/example.tfvars
🧰 Additional context used
📓 Path-based instructions (2)
examples/single-instance/root-modules/spacelift-automation-example2/versions.tf (1)

Pattern **/*.tf: You're a Terraform expert who has thoroughly studied all the documentation from Hashicorp https://developer.hashicorp.com/terraform/docs and OpenTofu https://opentofu.org/docs/.
You have a strong grasp of Terraform syntax and prioritize providing accurate and insightful code suggestions.
As a fan of the Cloud Posse / SweetOps ecosystem, you incorporate many of their best practices https://docs.cloudposse.com/best-practices/terraform/ while balancing them with general Terraform guidelines.

examples/single-instance/root-modules/spacelift-automation-example2/main.tf (1)

Pattern **/*.tf: You're a Terraform expert who has thoroughly studied all the documentation from Hashicorp https://developer.hashicorp.com/terraform/docs and OpenTofu https://opentofu.org/docs/.
You have a strong grasp of Terraform syntax and prioritize providing accurate and insightful code suggestions.
As a fan of the Cloud Posse / SweetOps ecosystem, you incorporate many of their best practices https://docs.cloudposse.com/best-practices/terraform/ while balancing them with general Terraform guidelines.

📓 Learnings (1)
examples/single-instance/root-modules/spacelift-automation-example2/versions.tf (1)
Learnt from: gberenice
PR: masterpointio/terraform-spacelift-automation#3
File: modules/spacelift-automation/variables.tf:0-0
Timestamp: 2024-11-12T13:06:25.494Z
Learning: Spacelift requires a specific Terraform version number; it does not support version constraints like "~> 1.7.0".
🔇 Additional comments (1)
examples/single-instance/root-modules/spacelift-automation-example2/main.tf (1)

4-15: LGTM on module configuration structure

The module configuration correctly implements the single-instance root module structure with appropriate GitHub and path settings.

Comment on lines +2 to +8
required_version = "~> 1.0"

required_providers {
spacelift = {
source = "spacelift-io/spacelift"
version = "~> 1.14"
}
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⚠️ Potential issue

Update version constraints to use specific versions

Based on Spacelift requirements, version constraints should use specific version numbers instead of ranges. This ensures consistent behavior across environments.

Apply this diff to fix the version constraints:

-  required_version = "~> 1.0"
+  required_version = "1.5.7"

   required_providers {
     spacelift = {
       source  = "spacelift-io/spacelift"
-      version = "~> 1.14"
+      version = "1.14.0"
     }
   }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
required_version = "~> 1.0"
required_providers {
spacelift = {
source = "spacelift-io/spacelift"
version = "~> 1.14"
}
required_version = "1.5.7"
required_providers {
spacelift = {
source = "spacelift-io/spacelift"
version = "1.14.0"
}

Comment on lines 5 to 14
"workspace_key_prefix": "terraform-spacelift-automation",
"acl": "bucket-owner-full-control",
"bucket": "mp-automation-tfstate",
"dynamodb_table": "mp-automation-tfstate-lock",
"encrypt": true,
"key": "single-instance.tfstate",
"region": "us-east-1",
"assume_role": {
"role_arn": "arn:aws:iam::755965222190:role/mp-automation-tfstate"
}
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⚠️ Potential issue

Parameterize backend configuration and protect sensitive data

The backend configuration contains hardcoded values and sensitive information that should be parameterized:

  1. AWS account ID and role ARN are visible in the repository
  2. Infrastructure component names (bucket, table) are hardcoded

Consider using a backend configuration template with variables:

{
  "terraform": {
    "backend": {
      "s3": {
        "workspace_key_prefix": "${workspace_prefix}",
        "acl": "bucket-owner-full-control",
        "bucket": "${state_bucket}",
        "dynamodb_table": "${lock_table}",
        "encrypt": true,
        "key": "${state_key}",
        "region": "${aws_region}",
        "assume_role": {
          "role_arn": "${backend_role_arn}"
        }
      }
    }
  }
}

Then provide these values through a secure method like environment variables or a separate configuration file that's not committed to version control.

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Actionable comments posted: 1

🧹 Nitpick comments (3)
tests/single-instance.tftest.hcl (3)

1-3: Consider making the API endpoint configurable

The API endpoint is currently hardcoded to Masterpoint's tenant. Consider making it configurable through a variable to improve reusability of these tests across different organizations.

provider "spacelift" {
-  api_key_endpoint = "https://masterpointio.app.spacelift.io"
+  api_key_endpoint = var.spacelift_api_endpoint
}

5-18: Add variable descriptions and validations

Consider adding descriptions and validations for the variables to improve maintainability and prevent invalid inputs.

variable "root_modules_path" {
  description = "Path to the root modules directory"
  type        = string

  validation {
    condition     = can(regex("^[./]", var.root_modules_path))
    error_message = "Root modules path must be a relative path starting with ./"
  }
}

variable "root_module_structure" {
  description = "The structure type for root modules (SingleInstance or MultiInstance)"
  type        = string
  
  validation {
    condition     = contains(["SingleInstance", "MultiInstance"], var.root_module_structure)
    error_message = "Root module structure must be either SingleInstance or MultiInstance"
  }
}

20-134: Consider adding negative test cases

The test suite thoroughly covers the happy path but could benefit from negative test cases. Consider adding tests for:

  1. Invalid root module structure values
  2. Non-existent root modules path
  3. Malformed stack.yaml files

Example negative test:

run "test_invalid_root_module_structure" {
  command = plan
  expect_failures = [
    {
      error_message = "Root module structure must be either SingleInstance or MultiInstance"
    }
  ]

  variables {
    root_module_structure = "InvalidStructure"
  }
}
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module "spacelift-automation" {
source = "github.com/masterpointio/terraform-spacelift-automation"
version = "x.x.x" # Always pin a version, use the latest version from the release page.
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The version argument in the module block is specified when when using modules installed from a registry. We should check the source to source = "masterpointio/automation/spacelift" or remove the version and update the source to include refs:

source = "github.com/masterpointio/terraform-spacelift-automation?ref=vX.X.X" # Always pin a version, use the latest version from the release page.

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Good callout. Let's change to registry syntax. Is this module in the registry? At this point, I think you're more experienced on this than I am...

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Yeah, I've published all our Spacelift modules to the registry: masterpointio/automation/spacelift

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Fixed!

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NOTE to Masterpoint team: We might want to create a small wrapper to automatize this using Taskit. On hold for now.
e.g. `tofu plan -var-file=tfvars/dev.tfvars`
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This row looks lost. Was it supposed to end the last sentence?

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Will fix via local change!

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Fixed 👍

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@@ -0,0 +1,134 @@
provider "spacelift" {
api_key_endpoint = "https://masterpointio.app.spacelift.io"
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I'd move this to SPACELIFT_API_KEY_ENDPOINT secret env var.

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Yeah, you're right. Thanks for the callout.

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Will do this as a follow up shortly ⌛

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Fixed.

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🧹 Nitpick comments (1)
main.tf (1)

45-52: Remove duplicated comment block.

These lines appear to be a duplicate of the comment block above (lines 34-44).

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main.tf (1)

Pattern **/*.tf: You're a Terraform expert who has thoroughly studied all the documentation from Hashicorp https://developer.hashicorp.com/terraform/docs and OpenTofu https://opentofu.org/docs/.
You have a strong grasp of Terraform syntax and prioritize providing accurate and insightful code suggestions.
As a fan of the Cloud Posse / SweetOps ecosystem, you incorporate many of their best practices https://docs.cloudposse.com/best-practices/terraform/ while balancing them with general Terraform guidelines.

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README.md (2)
Learnt from: Gowiem
PR: masterpointio/terraform-spacelift-automation#17
File: examples/single-instance/root-modules/spacelift-automation-example2/main.tf:11-12
Timestamp: 2024-12-23T04:16:47.209Z
Learning: For single-instance Spacelift automation structures, the user prefers to hardcode AWS integration ID and related settings rather than parameterizing them.
Learnt from: Gowiem
PR: masterpointio/terraform-spacelift-automation#17
File: examples/single-instance/root-modules/spacelift-automation-example2/main.tf:2-2
Timestamp: 2024-12-23T04:17:28.637Z
Learning: For local development and testing, Gowiem prefers using relative module paths over pinned Git references in example files.
🔇 Additional comments (8)
main.tf (5)

28-55: LGTM! Clean implementation of the root module structure logic.

The implementation elegantly handles both MultiInstance and SingleInstance structures using the fileset function with appropriate path patterns.


82-95: LGTM! Well-structured YAML decoding implementation.

The separation of MultiInstance and SingleInstance YAML decoding with clear data structure examples in comments makes the code easy to understand and maintain.


116-117: LGTM! Clear default workspace handling.

The logic correctly enforces default workspace for SingleInstance structure while maintaining flexibility for MultiInstance.


252-254: LGTM! Clear tfvars handling logic.

The implementation correctly differentiates between MultiInstance (using tfvars files) and SingleInstance (expecting auto.tfvars) structures.


227-227: LGTM! Clear folder label generation.

The conditional expression correctly generates appropriate folder labels for both MultiInstance and SingleInstance structures.

README.md (3)

Line range hint 9-27: LGTM! Clear and comprehensive documentation.

The overview and usage sections effectively explain the module's purpose and introduce the concept of different root module structures.


Line range hint 31-194: LGTM! Excellent structure documentation.

The documentation provides clear, detailed explanations of both MultiInstance and SingleInstance structures, with helpful examples and requirements. The tfvars handling explanation is particularly well-done.


141-194: LGTM! Helpful FAQ section.

The FAQ section effectively addresses common questions and provides clear guidance, particularly regarding self-management and tfvars handling.

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🧹 Nitpick comments (4)
.github/workflows/tf-test.yaml (1)

Line range hint 25-27: Consider pinning Terraform/OpenTofu versions in the matrix

While the current setup tests against both Terraform and OpenTofu, it might be beneficial to test against specific versions to ensure compatibility across different releases.

Example enhancement:

    strategy:
      matrix:
-       tf: [tofu, terraform]
+       include:
+         - tf: tofu
+           version: "1.6.0"
+         - tf: terraform
+           version: "1.6.0"
tests/single-instance.tftest.hcl (3)

1-14: Add documentation for test variables

Consider adding comments to document the purpose and expected values of each variable, especially root_module_structure which is a key configuration for this test suite.


16-24: Enhance root module fileset test coverage

Consider adding assertions to verify:

  1. The exact number of root modules expected
  2. That invalid or hidden directories are not included

112-130: Document external test dependencies

The before_init test expects echo 'World' which comes from the stack configuration. Consider adding a comment to explain this dependency for better test maintainability.

 # Test that the before_init steps are added to the stack
+# Note: 'echo World' command comes from the stack.yaml configuration
 run "test_single_instance_before_init_steps_are_added_to_stack" {
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.github/workflows/tf-test.yaml (2)

10-12: LGTM! Environment variables are properly configured.

The new SPACELIFT_API_KEY_ENDPOINT secret is correctly added and follows the existing pattern for Spacelift API credentials management. All sensitive values are appropriately sourced from GitHub secrets.


Line range hint 31-37: LGTM! Proper caching strategy for Aqua.

The cache configuration is well-structured with:

  • Appropriate cache key versioning
  • Conditional execution to skip during local testing with act
  • Proper restore-keys fallback
tests/single-instance.tftest.hcl (2)

26-70: Well-structured stack configuration tests!

The tests thoroughly validate stack naming, workspace settings, and project root configuration. Good job on breaking these into focused test cases.


72-110: Comprehensive label validation tests!

Good separation of concerns with individual tests for each label type. The assertions clearly validate both presence and absence of labels as needed.

@Gowiem Gowiem requested a review from gberenice December 26, 2024 16:25
Comment on lines 140 to 141
"project_root" = replace(format("%s/%s", var.root_modules_path, module), "../", "")
"root_module" = module,
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I can take this on or we can do it in another PR: The thing I would say about the project_root is that there are certain times where it's needed to customize the "project root". I put that in quotes because if specified, it only pulls the said directory in this case. e.g. the example only pulls the directory examples/complete/components/random-pet
image

But for certain tools like Terraspace, where the entire root of the whole repository is needed for base templates and configs and others, this project_root logic wouldn't work here since it only pulls that said directory at runtime.

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I would think to put it in a try with content. project_root to let it be passed in.

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@oycyc let's follow up with support for this 👍

Comment on lines +66 to +71
assert {
condition = local._root_module_stack_configs["root-module-a"].project_root == "${var.root_modules_path}/root-module-a"
error_message = "project_root is not correct for root-module-a: ${jsonencode(local._root_module_stack_configs)}"
}
}

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These tests are awesome! But yeah a way to specify the project_root is needed.

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The tests will help with implementing!!!

@Gowiem Gowiem requested a review from oycyc December 26, 2024 20:43
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I think this looks great! Seemed like a bunch of changes at first glance but it's lots of of the tests and examples/ for the support

@Gowiem Gowiem merged commit 598f0c7 into main Dec 26, 2024
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@Gowiem Gowiem deleted the feat/structure-modes-take1 branch December 26, 2024 21:17
Gowiem added a commit that referenced this pull request Dec 27, 2024
🤖 I have created a release *beep* *boop*
---


##
[0.4.0](v0.3.1...v0.4.0)
(2024-12-26)


### Features

* begins the work to support single vs multi root_module_structure
([#17](#17))
([598f0c7](598f0c7))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Matt Gowie <[email protected]>
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