ci: support oracle for hal cluster

[yangchiu]

Which issue(s) this PR fixes:

Issue longhorn/longhorn#9691

What this PR does / why we need it:

support oracle for hal cluster

Special notes for your reviewer:

Additional documentation or context

Summary by CodeRabbit

• New Features

  • Introduced a Terraform configuration for managing a Rancher2 environment, including resources for clusters, machine configurations, and cloud credentials.
  • Added new variables for enhanced configuration management, including sensitive information and deployment parameters.

• Bug Fixes

  • Improved naming conventions with unique suffix generation for resources.

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

The changes introduce a new Terraform configuration for managing a Rancher2 environment, including the definition of a provider, resources for cloud credentials and machine configurations, and a cluster resource. Additionally, several sensitive variables are declared to enhance configuration flexibility. The setup allows for the creation of a Rancher cluster with specific control plane and worker node configurations.

Changes

File Path	Change Summary
test_framework/terraform/harvester/oracle/main.tf	Added provider, resources for cloud credentials, machine configurations, and a cluster resource.
test_framework/terraform/harvester/oracle/variables.tf	Introduced multiple sensitive variables for managing configuration parameters and credentials.

Assessment against linked issues

Objective	Addressed	Explanation
Support other OS distros for HAL cluster (#9691)	✅

Possibly related PRs

• ci: support sles for hal cluster #2149: This PR adds support for SUSE Linux Enterprise Server (SLES) within the HAL cluster, which is relevant as it involves Terraform configurations for managing a Rancher2 environment.
• ci: support sle-micro for hal cluster #2150: This PR introduces support for SLE Micro within the HAL cluster, also involving Terraform configurations for Rancher2.

Suggested reviewers

• khushboo-rancher
• roger-ryao

🐇 In the fields where the servers hum,
A Rancher setup has just begun.
With variables set and machines in line,
A cluster of dreams, oh how they shine!
Secure and swift, let the code take flight,
In the world of Terraform, everything feels right! 🌟

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