Update Homelab Terraform and Workflows

Change Summary

This git diff introduces several significant changes to the project’s CI/CD pipelines and infrastructure-as-code (IaC) configurations. Key modifications include the creation of new GitHub Actions workflows for deployment and planning, updates to Terraform configurations, and the addition of a new mise.toml file for managing tool versions.

Technical Details

• New GitHub Actions Workflows:
  • deploy.yml: Automates the deployment process using Terragrunt. It includes steps for checking out the code, validating HCL files, installing necessary tools, configuring AWS credentials, and executing the Terragrunt apply command.
  • plan.yml: Similar to deploy.yml, but tailored for planning changes. It runs the Terragrunt plan command instead of apply.
• Terraform Configuration Updates:
  • Inclusion of a new kube_provider in metrics.hcl.
  • Modifications in helm.hcl and kube.hcl to use pathexpand for the kubeconfig path.
  • Version change for the metrics-server Helm chart in main.tf.
• Terraform Lock Files: Multiple .terraform.lock.hcl files were updated to reflect changes in provider versions.
• mise.toml: A new file added to manage versions of tools like Terragrunt and OpenTofu.

Key Learnings & Insights

• Automation and Consistency: The introduction of GitHub Actions workflows (deploy.yml and plan.yml) enhances automation and ensures consistent deployment and planning processes.
• Configuration Management: The use of mise.toml for version management of tools like Terragrunt and OpenTofu promotes reproducibility and simplifies dependency management.
• Path Management: The switch to pathexpand in helm.hcl and kube.hcl improves portability and reduces hardcoded path dependencies.

Impact Assessment

• Automation: The new workflows streamline the deployment and planning processes, reducing manual intervention and potential errors.
• Maintainability: The version management via mise.toml and the updates to Terraform configurations improve maintainability and ensure the use of up-to-date tool versions.
• Portability: The changes in path management enhance the portability of the configurations across different environments.

Developer Notes

• Workflow Dependencies: Ensure that the necessary secrets (e.g., TS_AUTH_KEY, KUBE_CONFIG) are correctly set up in the GitHub repository settings.
• Version Management: When updating tool versions in mise.toml, verify compatibility with existing configurations and workflows.
• Terraform Lock Files: Regularly review and update .terraform.lock.hcl files to align with the latest provider versions and constraints.