v0.3.0 - Integrate auto-detection into mdadm_arrays configuration

Release v0.3.0 - Integrate auto-detection into mdadm_arrays configuration

Summary

This version introduces a major refactoring of the RAID disk auto-detection system. The previous approach using separate variables has been replaced with direct integration into the mdadm_arrays structure.

New Features

Integrated Configuration

• New auto_detect field: Enables auto-detection per array
• New min_disks field: Defines minimum number of disks required for auto-detection
• Unified configuration: Everything is now configured within mdadm_arrays

Enhanced Validation

• Conflict detection: Error if auto_detect=true AND devices are defined
• Resource validation: Error if insufficient disks are available
• Explicit error messages: Improved debugging of configurations

Breaking Changes

Removed Variables

• mdadm_auto_detect_arrays: Removed
• mdadm_auto_detect_config: Removed

New Syntax

Previous configuration (v0.2.0):

mdadm_auto_detect_arrays: true
mdadm_auto_detect_config:
  - name: md200
    filesystem: lvm
    level: 5
    state: present
    min_disks: 3

New configuration (v0.3.0):

mdadm_arrays:
  - name: md200
    devices: []  # empty list for auto-detection
    filesystem: lvm
    level: 5
    state: present
    auto_detect: true
    min_disks: 3

Usage Examples

Manual Configuration

mdadm_arrays:
  - name: md0
    devices:
      - /dev/sdb
      - /dev/sdc
    filesystem: ext4
    level: 1
    state: present
    auto_detect: false  # default

Auto-detection Configuration

mdadm_arrays:
  - name: md200
    devices: []
    filesystem: lvm
    level: 5
    state: present
    auto_detect: true
    min_disks: 3

Mixed Configuration

mdadm_arrays:
  - name: md0          # Manual configuration
    devices:
      - /dev/sdb
      - /dev/sdc
    filesystem: ext4
    level: 1
    state: present
  - name: md200        # Auto-detection
    devices: []
    filesystem: lvm
    level: 5
    state: present
    auto_detect: true
    min_disks: 3

Technical Improvements

• Validation logic: Strict configuration checks
• Error handling: Explicit messages for troubleshooting
• Performance: Auto-detection triggered only when needed
• Flexibility: Mix manual and auto-detection configurations

Documentation

• README.md updated with new examples
• defaults/main.yml documented with complete examples
• Migration examples provided for easier transition

Migration from v0.2.0

1. Remove mdadm_auto_detect_arrays and mdadm_auto_detect_config variables
2. Add arrays with auto_detect: true to mdadm_arrays
3. Set devices: [] for arrays with auto-detection
4. Specify min_disks if needed (default: 3)

Contributors

• @rguichard - Design and implementation

---

Important: This version contains breaking changes. Please review the migration guide above before updating.