Azure/Ansible: improve idempotency (2)

Azure/Ansible/roles/dc/tasks/main.yml

@@ -1,7 +1,12 @@
 ---
 
 - name: Set DNS Address
-  win_shell: "Set-DnsClientServerAddress -InterfaceAlias Ethernet -ServerAddresses 127.0.0.1,8.8.8.8"
+  win_dns_client:
+    adapter_names: '*'
+    ipv4_addresses:
+      - 127.0.0.1
+      - 8.8.8.8
+    log_path: C:\dns_log.txt
 
 - name: Install git
   win_chocolatey:
@@ -33,6 +38,8 @@
       - Users
       - Administrators
     password_never_expires: yes
+  # Fail after domain creation: Failed to remove Domain Users: Exception calling \"Remove\" with \"1\" argument(s): \"This operation is not allowed on this special group.
+  ignore_errors: true
   
 - name: Create the Domain
   win_shell: .\\provision.ps1
@@ -47,6 +54,7 @@
     pre_reboot_delay: 15
     reboot_timeout: 600
     post_reboot_delay: 60
+  when: domain_creation.changed
 
 - name: Configure OU
   win_shell: .\\configure-ou.ps1
@@ -60,6 +68,7 @@
     ansible_become_password: vagrant
     ansible_become_flags: logon_type=new_credentials logon_flags=netcredentials_only
   failed_when: "'Exception' in ou_creation.stderr"
+  changed_when: "'already exists. Moving On.' not in ou_creation.stdout"
 
 - debug: msg="{{ ou_creation.stdout_lines }}"
 
@@ -75,8 +84,10 @@
     ansible_become_password: vagrant
     ansible_become_flags: logon_type=new_credentials logon_flags=netcredentials_only
   failed_when: "'Exception' in wef_gpo.stderr"
+  changed_when: "' already linked on ' not in wef_gpo.stdout"
 
 - debug: msg="{{ wef_gpo.stdout_lines }}"
+  when: wef_gpo.stdout_lines is defined
 
 - name: Configure Powershell Logging GPO
   win_shell: .\\configure-powershelllogging.ps1
@@ -90,8 +101,10 @@
     ansible_become_password: vagrant
     ansible_become_flags: logon_type=new_credentials logon_flags=netcredentials_only
   failed_when: "'Exception' in powershell_gpo.stderr"
+  changed_when: "' already linked on ' not in wef_gpo.stdout"
 
 - debug: msg="{{ powershell_gpo.stdout_lines }}"
+  when: powershell_gpo.stdout_lines is defined
 
 - name: Configure Auditing Policy GPO
   win_shell: .\\configure-AuditingPolicyGPOs.ps1
@@ -105,8 +118,10 @@
     ansible_become_password: vagrant
     ansible_become_flags: logon_type=new_credentials logon_flags=netcredentials_only
   failed_when: "'Exception' in audit_policy.stderr"
+  changed_when: "' already linked on ' not in audit_policy.stdout"
 
 - debug: msg="{{ audit_policy.stdout_lines }}"
+  when: audit_policy.stdout_lines is defined
 
 - name: Disable Windows Defender GPO
   win_shell: .\\configure-disable-windows-defender-gpo.ps1
@@ -120,6 +135,7 @@
     ansible_become_password: vagrant
     ansible_become_flags: logon_type=new_credentials logon_flags=netcredentials_only
   failed_when: "'Exception' in disable_win_def.stderr"
+  changed_when: "' already linked at ' not in disable_win_def.stdout"
 
 - debug: msg="{{ disable_win_def.stdout_lines }}"
 
@@ -135,8 +151,10 @@
     ansible_become_password: vagrant
     ansible_become_flags: logon_type=new_credentials logon_flags=netcredentials_only
   failed_when: "'Exception' in rdp_gpo.stderr"
+  changed_when: "' already linked at ' not in rdp_gpo.stdout"
 
 - debug: msg="{{ rdp_gpo.stdout_lines }}"
+  when: rdp_gpo.stdout_lines is defined
 
 - name: Configure DC with raw Commands
   win_shell: "{{ item }}"

Azure/Ansible/roles/wef/tasks/main.yml

@@ -1,7 +1,12 @@
 ---
-# This needs to be made idempodent
+
 - name: Set HostOnly DNS Address
-  win_shell: "Set-DnsClientServerAddress -InterfaceAlias Ethernet -ServerAddresses 192.168.38.102,8.8.8.8"
+  win_dns_client:
+    adapter_names: '*'
+    ipv4_addresses:
+      - 192.168.38.102
+      - 8.8.8.8
+    log_path: C:\dns_log.txt
 
 - name: Install git
   win_chocolatey:
@@ -48,9 +53,21 @@
     dest: "C:\\Users\\vagrant\\AppData\\Local\\Temp\\Microsoft ATA 1.9.iso"
     timeout: 3600
 
+- name: Check if DetectionLab Clear Event Logs has been done
+  win_stat:
+    path: 'c:\Windows\.detectionlab_clear_done'
+  register: clearevt
+
+- block:
     - name: Clear Event Logs
       win_shell: "wevtutil el | Select-String -notmatch \"Microsoft-Windows-LiveId\" | Foreach-Object {wevtutil cl \"$_\"}"
 
+    - name: Add marker for DetectionLab Clear Event
+      win_file:
+        path: 'c:\Windows\.detectionlab_clear_done'
+        state: touch
+  when: not clearevt.stat.exists
+
 - name: Downloading the Palantir WEF Configuration
   win_shell: ".\\download_palantir_wef.ps1"
   args:
@@ -95,10 +112,12 @@
   win_shell: ".\\configure-pslogstranscriptsshare.ps1"
   args:
     chdir: 'c:\vagrant\scripts'
+    creates: c:\pslogs
   register: pstranscriptshare
   failed_when: "'Exception' in pstranscriptshare.stdout"
 
 - debug: msg="{{ pstranscriptshare.stdout_lines }}"
+  when: pstranscriptshare.stdout_lines is defined
 
 - name: Installing the EVTX Event Samples
   win_shell: ".\\install-evtx-attack-samples.ps1"

Azure/Ansible/roles/win10/tasks/main.yml

@@ -1,6 +1,11 @@
 ---
 - name: Set HostOnly DNS Address
-  win_shell: "Set-DnsClientServerAddress -InterfaceAlias Ethernet -ServerAddresses 192.168.38.102,8.8.8.8"
+  win_dns_client:
+    adapter_names: '*'
+    ipv4_addresses:
+      - 192.168.38.102
+      - 8.8.8.8
+    log_path: C:\dns_log.txt
 
 - name: Install git
   win_chocolatey:
@@ -50,9 +55,21 @@
     post_reboot_delay: 60
   when: win10_join_domain.changed
 
+- name: Check if DetectionLab Clear Event Logs has been done
+  win_stat:
+    path: 'c:\Windows\.detectionlab_clear_done'
+  register: clearevt
+
+- block:
     - name: Clear Event Logs
       win_shell: "wevtutil el | Select-String -notmatch \"Microsoft-Windows-LiveId\" | Foreach-Object {wevtutil cl \"$_\"}"
 
+    - name: Add marker for DetectionLab Clear Event
+      win_file:
+        path: 'c:\Windows\.detectionlab_clear_done'
+        state: touch
+  when: not clearevt.stat.exists
+
 - name: Install Classic Shell with Chocolatey
   win_chocolatey:
     name:
@@ -60,12 +77,19 @@
     state: present
     install_args: "ADDLOCAL=ClassicStartMenu"
 
+- name: Check if DetectionLab Menu Install has been done
+  win_stat:
+    path: 'c:\Program Files\Classic Shell\.menu_install_done'
+  register: menu_install
+
+- block:
     - name: Import ClassicShell config
       win_shell: |
         "C:\Program Files\Classic Shell\ClassicStartMenu.exe -xml c:\vagrant\resources\windows\MenuSettings.xml"
         regedit /s c:\vagrant\resources\windows\MenuStyle_Default_Win7.reg
 
-
-
-
-
+    - name: Add marker for DetectionLab Menu install
+      win_file:
+        path: 'c:\Program Files\Classic Shell\.menu_install_done'
+        state: touch
+  when: not menu_install.stat.exists