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Terraform feature fixes #243

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@zzaakiirr zzaakiirr commented Nov 12, 2024

What does this PR do?

This PR fixes errors that were discovered while generating terraform configurations for hichee app

Summary by CodeRabbit

Release Notes

  • New Features

    • Introduced identity_link for workload configurations, enhancing clarity in identity handling.
    • Updated Terraform configuration to simplify identity link assignment.
  • Bug Fixes

    • Improved output formatting by removing quotes from expression values.
  • Tests

    • Enhanced test coverage for TerraformConfig::Generator and TerraformConfig::Workload to reflect changes in identity handling.
    • Adjusted expected outputs in tests to align with updated configuration attributes.

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Walkthrough

The changes in this pull request involve updates across several files in the TerraformConfig module. Key modifications include the renaming of the identity attribute to identity_link, adjustments in the handling of workload configurations, and enhancements to the argument method for better expression value formatting. Additionally, Terraform variable definitions have been restructured, particularly focusing on health check configurations and the removal of the workload_identity method. Test cases have been updated to reflect these changes, ensuring consistency in the expected outputs.

Changes

File Path Change Summary
lib/core/terraform_config/dsl.rb Modified argument method to strip quotes from expression values in content. Commented out similar functionality in tf_hash_value method.
lib/core/terraform_config/generator.rb Added identity_link to WORKLOAD_SPEC_KEYS. Removed workload_identity method and modified workload_config_params to change identity processing.
lib/core/terraform_config/workload.rb Renamed identity attribute to identity_link in the attribute reader, constructor, and to_tf method.
lib/core/terraform_config/workload/main.tf Updated identity_link assignment to directly use var.identity_link, removing conditional logic.
lib/core/terraform_config/workload/variables.tf Removed identity variable, added identity_link variable with type string. Defined containers and firewall_spec variables with complex structures.
spec/core/terraform_config/generator_spec.rb Enhanced test cases for Generator class to validate different template kinds and updated assertions for identity to identity_link.
spec/core/terraform_config/gvc_spec.rb Modified expected output of to_tf method in Gvc class to change pull_secrets from string array to reference format.
spec/core/terraform_config/workload_spec.rb Updated tests to change identity parameter to identity_link in both initialization and expected output for to_tf method.

Possibly related PRs

Suggested labels

changes requested, review needed

Suggested reviewers

  • borela
  • rafaelgomesxyz

Poem

In the fields where code does play,
A rabbit hops, and here’s what they say:
"Identity's new name is link,
With quotes stripped down, we start to think.
Workloads now dance in a clearer light,
With changes made, everything feels right!" 🐇✨


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@@ -30,6 +30,9 @@ def argument(name, value, optional: false, raw: false)
"#{tf_value(value)}\n"
end

# remove quotes from expression values
content = content.gsub(/("#{EXPRESSION_PATTERN}.*")/) { ::Regexp.last_match(1)[1...-1] }
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"['cpln_secret.some-secret.name']" -> "[cpln_secret.some-secret.name]"

@@ -107,7 +108,7 @@ def volumeset_config_params
def workload_config_params
template
.slice(:name, :description, :tags)
.merge(gvc: gvc, identity: workload_identity)
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using identity_link i/o identity since there is a case when identity is referenced via link in workload config and .controlplane/templates/ does not have this identity config

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Actionable comments posted: 5

🧹 Outside diff range and nitpick comments (6)
lib/core/terraform_config/dsl.rb (2)

33-35: Consider potential edge cases in expression pattern matching

While the quote removal implementation addresses the formatting issue raised in the previous review, there are some considerations:

  1. The regex might be too greedy with .* potentially matching more than intended
  2. The pattern assumes expressions don't contain nested quotes or special characters

Consider using a more precise regex pattern:

-      content = content.gsub(/("#{EXPRESSION_PATTERN}.*")/) { ::Regexp.last_match(1)[1...-1] }
+      content = content.gsub(/("#{EXPRESSION_PATTERN}[^"]*")/) { ::Regexp.last_match(1)[1...-1] }

This change makes the pattern less greedy by matching any character except quotes ([^"]*), reducing the risk of incorrect matches.


33-35: Consider extracting quote handling to a dedicated method

The quote removal logic could be moved to a dedicated method to improve maintainability and reusability. This would also make it easier to test and modify the behavior in the future.

Consider refactoring like this:

+    def remove_expression_quotes(content)
+      content.gsub(/("#{EXPRESSION_PATTERN}[^"]*")/) { ::Regexp.last_match(1)[1...-1] }
+    end

     def argument(name, value, optional: false, raw: false)
       # ... existing code ...
-      content = content.gsub(/("#{EXPRESSION_PATTERN}.*")/) { ::Regexp.last_match(1)[1...-1] }
+      content = remove_expression_quotes(content)
       # ... rest of the method ...
     end
lib/core/terraform_config/generator.rb (1)

111-113: LGTM! Improved configuration consistency.

The simplified workload_config_params method now handles all spec parameters uniformly through WORKLOAD_SPEC_KEYS, including the new identity_link. This makes the code more maintainable and reduces special cases.

Consider documenting the workload configuration structure in a schema file or documentation to help maintain this consistency as new spec keys are added in the future.

lib/core/terraform_config/workload/main.tf (1)

Configuration Missing Tests for Workload Resource

  • No test files (*_test.tf) found to validate the completeness and integrity of the workload resource configurations.
  • Ensure that appropriate tests are implemented to cover all aspects of the workload resource.
🔗 Analysis chain

Line range hint 1-324: Verify workload resource configuration completeness.

The workload resource configuration appears comprehensive with support for containers, probes, options, security, etc. However, since this is part of a feature fix PR, let's verify that all required configurations are present and properly structured.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify completeness of workload configuration against provider schema

# Look for provider documentation or schema files
fd -g "*provider*.tf" -x cat {} \;

# Check for any TODO or FIXME comments that might indicate incomplete configurations
rg -i "TODO|FIXME|XXX|HACK|BUG" --type tf

# Look for test files to verify configuration coverage
fd "_test.tf" -x cat {} \;

Length of output: 555

spec/core/terraform_config/workload_spec.rb (1)

38-38: Enhance test coverage for identity_link validation

While the happy path is tested, consider adding test cases for:

  1. Invalid identity link formats
  2. Empty/nil identity links
  3. Different GVC/identity combinations

Here's a suggested test structure:

context "with invalid identity_link" do
  context "when format is invalid" do
    let(:config) do
      described_class.new(
        # ... other params ...
        identity_link: "invalid-format",
      )
    end

    it "raises an error" do
      expect { config.to_tf }.to raise_error(ArgumentError, /invalid identity_link format/)
    end
  end

  context "when identity_link is nil" do
    let(:config) do
      described_class.new(
        # ... other params ...
        identity_link: nil,
      )
    end

    it "handles nil gracefully" do
      expect(generated).not_to include("identity_link")
    end
  end
end
spec/core/terraform_config/generator_spec.rb (1)

Line range hint 1-600: Consider adding negative test cases for workload template validation.

The test suite thoroughly covers the happy path for workload template processing, but could benefit from additional test cases that verify error handling for:

  1. Missing or malformed identity_link
  2. Invalid identity_link format
  3. Empty or null identity_link when required

Would you like me to provide example test cases for these scenarios?

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Reviewing files that changed from the base of the PR and between 4b762a8 and d8d45ab.

📒 Files selected for processing (8)
  • lib/core/terraform_config/dsl.rb (1 hunks)
  • lib/core/terraform_config/generator.rb (2 hunks)
  • lib/core/terraform_config/workload.rb (4 hunks)
  • lib/core/terraform_config/workload/main.tf (1 hunks)
  • lib/core/terraform_config/workload/variables.tf (1 hunks)
  • spec/core/terraform_config/generator_spec.rb (1 hunks)
  • spec/core/terraform_config/gvc_spec.rb (1 hunks)
  • spec/core/terraform_config/workload_spec.rb (2 hunks)
🔇 Additional comments (6)
lib/core/terraform_config/dsl.rb (1)

33-35: Verify input sanitization for security

The regex substitution could potentially be manipulated if the input contains carefully crafted malicious patterns. Ensure that all input values are properly sanitized before reaching this point.

Let's check for other input validation in the codebase:

✅ Verification successful

Input sanitization is adequately implemented

All input values are properly validated using existing validation methods, mitigating potential security risks associated with regex substitution.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for input validation patterns in related files
rg -t ruby "sanitize|validate|clean" --glob "lib/core/terraform_config/**/*"

# Look for potential security measures around value processing
ast-grep --pattern 'def tf_value($value)
  $$$
  case $value
  $$$
end'

Length of output: 2506

lib/core/terraform_config/workload.rb (3)

24-24: LGTM! Attribute reader renamed for clarity

The renaming from :identity to :identity_link better reflects that this attribute represents a reference/link to an identity rather than the identity itself.


36-36: Verify all constructor calls are updated

The parameter renaming from identity to identity_link looks good, but we should verify that all instantiations of the Workload class have been updated accordingly.

Also applies to: 55-55


74-74: Verify Terraform configuration compatibility

The argument name change from identity to identity_link in the Terraform configuration looks good, but we should verify:

  1. That corresponding Terraform module variables have been updated
  2. That any existing Terraform configurations consuming this output are compatible
lib/core/terraform_config/workload/variables.tf (1)

136-137: LGTM! Verify dependent configurations.

The simplified identity_link variable structure is cleaner than the previous identity object. However, ensure all configurations referencing the old identity variable are updated.

✅ Verification successful

Change Verified

All references to the old identity variable have been successfully removed. No further action required.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for any remaining references to the old 'identity' variable in Terraform configurations

# Search for any remaining references to the old 'identity' variable
echo "Checking for remaining references to 'identity' variable..."
rg --type tf 'variable\s+"identity"' 

# Search for potential usage of the old identity.self_link reference
echo "Checking for potential usage of identity.self_link..."
rg --type tf 'identity\.self_link'

Length of output: 327


Script:

#!/bin/bash
# Description: Perform a comprehensive search for any residual references to 'identity' in Terraform configurations

# Search for any variables containing 'identity' in their name
echo "Searching for variables with 'identity' in their name..."
rg --type tf 'variable\s+".*identity.*"'

# Search for any resources or modules referencing 'identity'
echo "Searching for resources or modules referencing 'identity'..."
rg --type tf 'identity'

# Search for comments that might reference 'identity'
echo "Searching for comments referencing 'identity'..."
rg --type tf '#.*identity.*'

# Search for any string literals containing 'identity'
echo "Searching for string literals containing 'identity'..."
rg --type tf '"[^"]*identity[^"]*"'

Length of output: 943

spec/core/terraform_config/generator_spec.rb (1)

472-472: LGTM! Test correctly verifies identity_link attribute.

The test assertion properly validates that the workload's identity_link is correctly extracted from the template and matches the expected format.

spec/core/terraform_config/gvc_spec.rb Show resolved Hide resolved
lib/core/terraform_config/generator.rb Show resolved Hide resolved
lib/core/terraform_config/workload/main.tf Show resolved Hide resolved
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@zzaakiirr zzaakiirr marked this pull request as ready for review November 12, 2024 15:30
@@ -18,5 +18,5 @@
/spec/dummy/.controlplane/controlplane*-tmp-*.yml

# Generated configs
terraform/
.controlplane/
/terraform/
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We need to ignore .controlplane folder on root level, otherwise folder spec/dummy/.controlplane is also ignored

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