Add working provisioning and configuration for MS SQL data warehouse

configuration/ansible_mssql/roles/mssql_prepare/defaults/main.yml

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+---
+mssql_staging_dir: 'C:\SQLInstall'
+
+mssql_bootstrapper_url: "https://go.microsoft.com/fwlink/p/?linkid=2215158&clcid=0x409&culture=en-us&country=US"
+mssql_bootstrapper_path: 'C:\SQLInstall\SQLServer2022-setup.exe'
+
+mssql_iso_path: 'C:\SQLInstall\SQLServer2022-x64-ENU.iso'

configuration/ansible_mssql/roles/mssql_prepare/tasks/main.yml

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+---
+- name: Create SQL Server staging directory
+  ansible.windows.win_file:
+    path: "{{ mssql_staging_dir }}"
+    state: directory
+
+- name: Download SQL Server 2022 setup bootstrapper
+  ansible.windows.win_get_url:
+    url: "{{ mssql_bootstrapper_url }}"
+    dest: "{{ mssql_bootstrapper_path }}"
+    timeout: 120
+
+- name: Download SQL Server 2022 ISO via bootstrapper
+  ansible.windows.win_command: >-
+    "{{ mssql_bootstrapper_path }}"
+    /Action=Download
+    /MEDIATYPE=ISO
+    /MEDIAPATH="{{ mssql_staging_dir }}"
+    /QUIET
+  args:
+    creates: "{{ mssql_iso_path }}"
+  timeout: 3600
+
+- name: Find downloaded SQL Server ISO
+  ansible.windows.win_find:
+    paths: "{{ mssql_staging_dir }}"
+    patterns: "*.iso"
+  register: iso_files
+
+- name: Fail if no ISO found in staging directory
+  ansible.builtin.fail:
+    msg: >-
+      No ISO file found in {{ mssql_staging_dir }}.
+      The bootstrapper download may have failed.
+      Check {{ mssql_staging_dir }} on the target host.
+  when: iso_files.files | length == 0
+
+- name: Mount SQL Server 2022 ISO
+  ansible.windows.win_powershell:
+    script: |
+      $ErrorActionPreference = 'Stop'
+      $imagePath = '{{ iso_files.files[0].path }}'
+
+      $diskImage = Get-DiskImage -ImagePath $imagePath
+      if (-not $diskImage.Attached) {
+          Mount-DiskImage -ImagePath $imagePath | Out-Null
+      }
+
+      $driveLetter = (Get-DiskImage -ImagePath $imagePath | Get-Volume).DriveLetter
+      if (-not $driveLetter) {
+          throw "ISO mounted but no drive letter was assigned"
+      }
+
+      $Ansible.Result = "${driveLetter}:"
+  register: mount_result
+
+- name: Set SQL Server ISO drive letter fact
+  ansible.builtin.set_fact:
+    mssql_iso_drive: "{{ mount_result.result }}"
+
+- name: Show mounted drive letter
+  ansible.builtin.debug:
+    msg: "SQL Server 2022 ISO mounted at {{ mssql_iso_drive }} ({{ iso_files.files[0].path }})"