diff --git a/.ansible-lint b/.ansible-lint
new file mode 100644
index 0000000..c825d95
--- /dev/null
+++ b/.ansible-lint
@@ -0,0 +1,7 @@
+---
+rules: {}
+parser:
+  ansible: true
+warn_list: []
+skip_list:
+  - yaml
diff --git a/.github-workflows-ci.yml b/.github-workflows-ci.yml
new file mode 100644
index 0000000..04e8bd6
--- /dev/null
+++ b/.github-workflows-ci.yml
@@ -0,0 +1,27 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - run: pip install ansible ansible-lint
+      - run: ansible-lint -v
+  dryrun:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - run: pip install ansible
+      - run: ansible-playbook playbook/playbook.yml --check --list-tasks
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..46f9542
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,8 @@
+# CODEOWNERS definiert die Reviewer/Verantwortlichen für Verzeichnisse und Dateien
+# Syntax: Pfad @owner1 @owner2
+
+* @linux-admins @devops-team
+playbook/roles/** @linux-admins
+playbook/group_vars/** @linux-admins
+docs/** @tech-writer
+scripts/** @devops-team
diff --git a/.gitignore b/.gitignore
index 8012542..b86e7cc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,5 @@
-# Ansible caches
-.ansible
-.ansible_facts_cache
-
-# Secrets
 playbook/group_vars/vault.yml
+.ansible_facts_cache/
+.vscode/
+.idea/
 .env
-*.retry
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..05d7958
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,20 @@
+image: python:3.11
+
+stages:
+  - lint
+  - dryrun
+
+variables:
+  PIP_DISABLE_PIP_VERSION_CHECK: '1'
+
+lint:
+  stage: lint
+  script:
+    - pip install ansible ansible-lint
+    - ansible-lint -v
+
+dryrun:
+  stage: dryrun
+  script:
+    - pip install ansible
+    - ansible-playbook playbook/playbook.yml --check --list-tasks
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..f1b0faf
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,11 @@
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.5.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+  - repo: https://github.com/ansible-community/ansible-lint
+    rev: v6.22.1
+    hooks:
+      - id: ansible-lint
diff --git a/.woodpecker.yml b/.woodpecker.yml
new file mode 100644
index 0000000..e97a28f
--- /dev/null
+++ b/.woodpecker.yml
@@ -0,0 +1,44 @@
+branches:
+  include:
+    - main
+
+steps:
+  lint:
+    image: python:3.11-slim
+    commands:
+      - pip install --no-cache-dir ansible ansible-lint
+      - ansible-lint -v
+
+  dryrun:
+    image: python:3.11-slim
+    commands:
+      - pip install --no-cache-dir ansible
+      - echo "$ANSIBLE_VAULT_PASSWORD" > .vault_pass
+      - ansible-galaxy collection install -r playbook/requirements.yml --force
+      - ansible-playbook playbook/playbook.yml --check --list-tasks \
+          --vault-password-file .vault_pass -i 'localhost,' -c local -e 'gather_facts=false'
+    secrets: [ANSIBLE_VAULT_PASSWORD]
+
+  run_preflight:
+    when:
+      event: [manual]
+    image: python:3.11-slim
+    commands:
+      - pip install --no-cache-dir ansible
+      - echo "$ANSIBLE_VAULT_PASSWORD" > .vault_pass
+      - ansible-galaxy collection install -r playbook/requirements.yml --force
+      - ansible-playbook playbook/playbook.yml --tags preflight -l pdp-portal \
+          --vault-password-file .vault_pass
+    secrets: [ANSIBLE_VAULT_PASSWORD]
+
+  run_patch:
+    when:
+      event: [manual]
+    image: python:3.11-slim
+    commands:
+      - pip install --no-cache-dir ansible
+      - echo "$ANSIBLE_VAULT_PASSWORD" > .vault_pass
+      - ansible-galaxy collection install -r playbook/requirements.yml --force
+      - ansible-playbook playbook/playbook.yml -l pdp-portal -e "target_clm_version=prod-2024-06" \
+          --vault-password-file .vault_pass
+    secrets: [ANSIBLE_VAULT_PASSWORD]
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..98af3ca
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,24 @@
+# CONTRIBUTING
+
+Danke für deinen Beitrag! Bitte beachte folgende Richtlinien:
+
+## Branch/Commit
+- Feature-Branches: `feature/<kurzbeschreibung>`
+- Fix-Branches: `fix/<kurzbeschreibung>`
+- Commit Messages nach Conventional Commits (feat:, fix:, docs:, chore:, refactor:, perf:, test:)
+
+## Code-Style
+- Ansible: ansible-lint muss grün sein (`make lint`)
+- YAML: 2 Spaces, keine Tabs
+
+## Tests
+- Dry-Run: `ansible-playbook playbook/playbook.yml --check --list-tasks`
+- App-spezifisch: `-l <app-gruppe>`
+
+## Security
+- Keine Secrets im Klartext, nutze `make vault-encrypt`
+- PRs werden automatisch per CI geprüft (Linting, Dry-Run)
+
+## Review
+- CODEOWNERS regelt Reviewer
+- Mindestens 1 Approval erforderlich
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..b2d6b24
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,18 @@
+SHELL := /bin/bash
+
+.PHONY: deps run lint vault-encrypt vault-decrypt
+
+deps:
+	./scripts/install_collections.sh
+
+run:
+	./scripts/run_patch.sh $(APP) $(CLM) "$(EXTRA)"
+
+lint:
+	ansible-lint -v
+
+vault-encrypt:
+	ansible-vault encrypt group_vars/vault.yml
+
+vault-decrypt:
+	ansible-vault decrypt group_vars/vault.yml
diff --git a/ansible.cfg b/ansible.cfg
index a30ce43..27026ed 100644
--- a/ansible.cfg
+++ b/ansible.cfg
@@ -1,9 +1,18 @@
 [defaults]
-inventory = playbook/inventories
+inventory = playbook/servicenow_inventory.yml
 roles_path = playbook/roles
+collections_path = ~/.ansible/collections:./collections
+host_key_checking = False
 retry_files_enabled = False
 stdout_callback = yaml
-host_key_checking = False
-force_color = True
-forks = 10
-callback_whitelist = profile_tasks
+bin_ansible_callbacks = True
+forks = 25
+interpreter_python = auto_silent
+fact_caching = jsonfile
+fact_caching_connection = .ansible_facts_cache
+fact_caching_timeout = 86400
+callbacks_enabled = profile_tasks, timer
+
+[ssh_connection]
+pipelining = True
+ssh_args = -o ControlMaster=auto -o ControlPersist=60s
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
new file mode 100644
index 0000000..73d45c7
--- /dev/null
+++ b/docs/CHANGELOG.md
@@ -0,0 +1,6 @@
+# CHANGELOG
+
+Alle Änderungen und Patchläufe werden hier automatisch dokumentiert.
+
+Beispiel:
+2024-06-01T12:00:00Z: Patch/Upgrade auf pdp-portal-server1.example.com (FQDN: pdp-portal-server1.example.com) durchgeführt. Ergebnis: OK
diff --git a/docs/README.md b/docs/README.md
index e69de29..050bf3b 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -0,0 +1,148 @@
+## Enterprise Auto-Upgrade Playbook für SLES & RHEL
+
+### Übersicht
+Modulares, Enterprise-taugliches Ansible-Playbook für automatisierte Upgrades/Patching von SLES und RHEL. Enthält:
+- Automatische OS-Erkennung und OS-spezifische Rollen (RHEL/SLES)
+- Upgrade nach Hersteller-Best-Practices (dnf/yum, zypper)
+- VMware-Snapshots für Backup/Rollback (vCenter API)
+- SUSE Manager API: dynamische CLM-Zuweisung via `target_clm_version`
+- Wartungsfenster-Handling, Preflight-Checks
+- Smoke-Tests (HTTP/Port/DB, inkl. Oracle SID/Listener-Erkennung)
+- Self-Healing (Service-Restarts, Cleanup, Netzwerk)
+- Compliance-Checks (OpenSCAP, Lynis)
+- Logging, Mail-Benachrichtigung (mailx), optional Slack
+- CI/CD via Gitea + Woodpecker (OAuth), Collections-Lint + Dry-Run
+
+### Verzeichnisstruktur (Auszug)
+```
+os-upgrade-automation/
+├── ansible.cfg
+├── docs/
+│   ├── README.md
+│   ├── CHANGELOG.md
+│   └── Runbook_SelfService.md
+├── playbook/
+│   ├── group_vars/
+│   │   ├── all.yml
+│   │   └── vault.yml            # Mit Ansible Vault verschlüsseln
+│   ├── host_vars/
+│   ├── playbook.yml
+│   ├── requirements.yml
+│   ├── servicenow_inventory.yml # Dynamic Inventory (ServiceNow)
+│   └── roles/
+│       ├── common/
+│       ├── preflight_check/
+│       ├── vmware_snapshot/
+│       ├── suma_api_assign_clm/
+│       ├── rhel_upgrade/
+│       ├── sles_upgrade/
+│       ├── post_upgrade/
+│       ├── smoke_tests/
+│       ├── self_healing/
+│       └── compliance_check/
+├── scripts/
+│   ├── install_collections.sh
+│   └── run_patch.sh
+└── .woodpecker.yml
+```
+
+### Voraussetzungen
+- Ansible (empfohlen ≥ 2.14)
+- Collections: `community.vmware`, `servicenow.servicenow`, `community.general`
+- vCenter-Zugriff (API), SUSE Manager API-Zugang
+- Zielsysteme: SLES oder RHEL (ggf. via SUSE Manager, venv-salt-minion)
+- Ansible Vault für Secrets (zwingend empfohlen) [[Speicherpräferenz]]
+
+Installation Collections:
+```
+make deps
+```
+
+### Konfiguration
+1) Secrets sicher ablegen (Vault)
+- `playbook/group_vars/vault.yml` befüllen (ServiceNow, SUSE Manager, vCenter, SMTP, Slack, DB)
+- Datei sofort verschlüsseln:
+```
+ansible-vault encrypt playbook/group_vars/vault.yml
+```
+
+2) Globale Variablen prüfen
+- `playbook/group_vars/all.yml` enthält Standardwerte (u.a. Skip-Flags, Mail-Empfänger, Wartungsfenster, Log-Verzeichnis).
+
+3) Dynamic Inventory (ServiceNow)
+- `playbook/servicenow_inventory.yml` nutzt den ServiceNow-Inventory-Plugin.
+- Erwartet in Vault: `servicenow_instance`, `servicenow_user`, `servicenow_pass`.
+
+### Nutzung (lokal)
+- Lint:
+```
+make lint
+```
+
+- Playbook ausführen (Beispiele):
+```
+# App-Gruppe patchen, Ziel-CLM setzen
+make run APP=pdp-portal CLM=prod-2024-06 EXTRA="debug_mode=true"
+
+# Direkter Aufruf
+./scripts/run_patch.sh pdp-portal prod-2024-06 "skip_compliance=true skip_smoke_tests=false"
+```
+
+Wichtige Extra-Variablen / Skip-Flags:
+- `target_clm_version` (z.B. `prod-2024-06`)
+- `debug_mode=true|false`
+- `skip_vmware_snapshot`, `skip_suma_api`, `skip_post_upgrade`
+- `skip_smoke_tests`, `skip_self_healing`, `skip_compliance`
+- `upgrade_security_only=true|false`
+
+### Rollenüberblick
+- `preflight_check`: Diskspace, Wartungsfenster, Erreichbarkeit, Channel-Sync, pyVmomi-Check
+- `vmware_snapshot`: Snapshot anlegen, optional Revert, optional Cleanup
+- `suma_api_assign_clm`: System dynamisch CLM-Channel zuordnen
+- `rhel_upgrade` / `sles_upgrade`: OS-spezifisches Upgrade, Kernel-Erkennung, Reboot-Flag
+- `post_upgrade`: Reboot (optional), Health-Check kritischer Dienste
+- `smoke_tests`: HTTP/Port/DB, Oracle (SIDs/Listener dynamisch erkannt)
+- `self_healing`: Dienst-Restarts, Disk-Cleanup, Netzwerk-Remediation
+- `compliance_check`: OpenSCAP, Lynis, Reporting & Mail
+- `common`: Logging, mailx-Konfiguration, Admin-Mail inkl. Log-Anhänge, Slack (optional)
+
+### VMware Snapshot & Rollback
+- Vor dem Upgrade wird ein Snapshot mit Zeitstempel erstellt.
+- Bei Fehlern kann automatisch ein Rollback getriggert werden (`rollback: true`).
+- Optionales automatisches Löschen alter Snapshots nach erfolgreichem Lauf (`snapshot_cleanup`).
+
+### Logging & Benachrichtigung
+- Logs in `log_dir` (Standard: `/var/log/auto-upgrade`).
+- Admin-Mail an `linux_admins_mail` mit Log-Summary + Anhängen.
+- Failsafe-Mail an App- und Host-Kontakte bei Fehler.
+- Optional Slack-Benachrichtigung (wenn `slack_enabled` und `slack_token`).
+
+### CI/CD (Gitea + Woodpecker)
+1) Repo in Woodpecker aktivieren
+- In `https://ci.pp1l.de` auf “Repos” → “Sync” → `os-upgrade-automation` (oder `PurePowerPh1l/os-upgrade-automation`) “Enable”.
+
+2) Secrets in Woodpecker setzen
+- Mindestens `ANSIBLE_VAULT_PASSWORD` (für CI-Läufe ohne Interaktion).
+- Optional: `SERVICENOW_*`, `SUMA_*`, `VCENTER_*`, `SLACK_TOKEN`, SMTP-Variablen, DB-Testdaten.
+
+3) Pipelines
+- `.woodpecker.yml` enthält: `lint`, `dryrun`, manuell `run_preflight`, `run_patch`.
+- Hinweis: Interaktive Prompts (`--ask-vault-pass`) funktionieren in CI nicht. Nutze stattdessen eine Secret-basierte Lösung (z.B. Secret als Datei schreiben und `--vault-password-file` verwenden). Passe die Pipeline bei Bedarf an.
+
+4) OAuth/Troubleshooting
+- “Unregistered Redirect URI”: Stelle sicher, dass die Gitea-OAuth-App `https://ci.pp1l.de/authorize` als Redirect-URI nutzt.
+- “PKCE is required for public clients”: Gitea-OAuth-App als Confidential Client anlegen.
+- “registration_closed”: In Woodpecker `WOODPECKER_OPEN=false`, erlaubte Nutzer via `WOODPECKER_ADMIN=<user1,user2>` whitelisten.
+
+### Sicherheit
+- Keine Secrets im Klartext: Alles in `playbook/group_vars/vault.yml` ablegen und per Vault verschlüsseln [[Speicherpräferenz]].
+- Zugriffsdaten in CI ausschließlich als Secrets verwalten.
+
+### Nützliche Links
+- Gitea: `https://git.pp1l.de`
+- Woodpecker CI: `https://ci.pp1l.de`
+- Ansible VMware Snapshot Modul: `https://docs.ansible.com/ansible/latest/collections/community/vmware/vmware_guest_snapshot_module.html`
+- SUSE Manager: `https://documentation.suse.com/suma/`
+
+—
+Fragen oder Wünsche? Gerne melden.
diff --git a/docs/Runbook_SelfService.md b/docs/Runbook_SelfService.md
new file mode 100644
index 0000000..fe9c490
--- /dev/null
+++ b/docs/Runbook_SelfService.md
@@ -0,0 +1,28 @@
+# Self-Service Runbook für App-Owner
+
+## Ziel
+Dieses Runbook beschreibt, wie App-Owner das Auto-Upgrade-Playbook für ihre Systeme selbstständig ausführen können.
+
+## Voraussetzungen
+- Zugang zum Ansible-Server (SSH)
+- Berechtigung für die gewünschte App-Gruppe im Inventory
+- Vault-Passwort für verschlüsselte Variablen
+
+## Schritt-für-Schritt-Anleitung
+1. **Login auf dem Ansible-Server**
+2. **Playbook für die eigene App-Gruppe ausführen:**
+   ```bash
+   ansible-playbook -i inventory_apps playbook.yml -l <app-gruppe> --ask-vault-pass -e "target_clm_version=<channel>"
+   ```
+   Beispiel für pdp-portal:
+   ```bash
+   ansible-playbook -i inventory_apps playbook.yml -l pdp-portal --ask-vault-pass -e "target_clm_version=prod-2024-06"
+   ```
+3. **Ergebnis prüfen:**
+   - E-Mail-Benachrichtigung abwarten
+   - Logfiles im angegebenen Verzeichnis prüfen
+
+## Hinweise
+- Bei Fehlern wird automatisch ein Failsafe-Mail an die App- und Linux-Admins gesendet.
+- Bei kritischen Fehlern erfolgt ein automatischer Rollback (VMware-Snapshot).
+- Für Fragen oder Freigaben bitte an die Linux-Admins wenden.
diff --git a/playbook/group_vars/all.yml b/playbook/group_vars/all.yml
new file mode 100644
index 0000000..38d5141
--- /dev/null
+++ b/playbook/group_vars/all.yml
@@ -0,0 +1,33 @@
+upgrade_dry_run: false
+reboot_after_upgrade: true
+log_dir: /var/log/auto-upgrade
+rollback: false
+mail_to: "root@localhost"
+
+# SMTP-Konfiguration für mailx (optional)
+mail_smtp_host: "smtp.example.com"
+mail_smtp_port: 587
+mail_smtp_user: "user@example.com"
+mail_smtp_pass: "dein_passwort"
+
+vcenter_hostname: "vcenter.example.com"
+vcenter_user: "administrator@vsphere.local"
+vcenter_password: "dein_passwort"
+vcenter_datacenter: "DeinDatacenter"
+vcenter_folder: "/"
+
+linux_admins_mail: "linux-admins@example.com"
+
+maintenance_window_start: "22:00"
+maintenance_window_end: "04:00"
+
+# Upgrade-Optionen
+upgrade_security_only: false  # true = nur Security-Updates
+
+# Skip-Flags für optionale Schritte
+skip_smoke_tests: false
+skip_compliance: false
+skip_self_healing: false
+skip_vmware_snapshot: false
+skip_suma_api: false
+skip_post_upgrade: false
diff --git a/playbook/group_vars/vault.sample.yml b/playbook/group_vars/vault.sample.yml
new file mode 100644
index 0000000..9a17aa5
--- /dev/null
+++ b/playbook/group_vars/vault.sample.yml
@@ -0,0 +1,32 @@
+# ServiceNow API
+servicenow_instance: "https://mycompany.service-now.com"
+servicenow_user: "ansible_api"
+servicenow_pass: "SuperSicheresServiceNowPasswort123!"
+
+# SUSE Manager API
+suma_api_url: "https://susemanager.example.com/rpc/api"
+suma_api_user: "suma_admin"
+suma_api_pass: "NochSichereresSumaPasswort456!"
+
+# vCenter/VMware
+vcenter_hostname: "vcenter.example.com"
+vcenter_user: "administrator@vsphere.local"
+vcenter_password: "MegaSicheresVcenterPasswort789!"
+vcenter_datacenter: "Datacenter1"
+vcenter_folder: "/"
+
+# Mail/SMTP
+mail_smtp_host: "smtp.example.com"
+mail_smtp_port: 587
+mail_smtp_user: "mailuser@example.com"
+mail_smtp_pass: "MailPasswort123!"
+
+# Slack
+slack_token: "xoxb-1234567890-abcdefghijklmnopqrstuvwx"
+slack_enabled: true
+
+# Datenbank Smoke-Tests
+smoke_test_db_host: "db.example.com"
+smoke_test_db_user: "dbuser"
+smoke_test_db_pass: "DBPasswort456!"
+smoke_test_db_name: "appdb"
diff --git a/playbook/inventory_apps b/playbook/inventory_apps
new file mode 100644
index 0000000..f7e1872
--- /dev/null
+++ b/playbook/inventory_apps
@@ -0,0 +1,29 @@
+[pdp-portal]
+pdp-portal-server1.example.com ansible_host=10.0.1.11 ansible_user=deploy host_email=admin-pdp@example.com
+pdp-portal-server2.example.com ansible_host=10.0.1.12 host_email=admin-pdp2@example.com
+
+[pdp-portal:vars]
+app_mail=pdp-portal-app@example.com
+
+[confluence]
+confluence-server1.example.com ansible_host=10.0.2.21 ansible_user=confluence host_email=confluence-admin@example.com
+confluence-server2.example.com ansible_host=10.0.2.22 host_email=confluence-admin2@example.com
+
+[confluence:vars]
+app_mail=confluence-app@example.com
+
+[git]
+git-server1.example.com ansible_host=10.0.3.31 ansible_user=gitadmin host_email=git-admin@example.com
+git-server2.example.com ansible_host=10.0.3.32 host_email=git-admin2@example.com
+
+[git:vars]
+app_mail=git-app@example.com
+
+# Optional: Gruppen für Umgebungen
+#[dev:children]
+#pdp-portal
+#git
+
+#[prod:children]
+#confluence
+#pdp-portal
diff --git a/playbook/playbook.yml b/playbook/playbook.yml
new file mode 100644
index 0000000..6aecb56
--- /dev/null
+++ b/playbook/playbook.yml
@@ -0,0 +1,81 @@
+---
+- name: Enterprise Auto-Upgrade für SLES und RHEL
+  hosts: all
+  gather_facts: false
+  become: yes
+  serial: 5
+  vars_files:
+    - group_vars/all.yml
+    - group_vars/vault.yml
+  vars:
+    target_clm_version: ""  # Kann beim Aufruf überschrieben werden
+    debug_mode: false        # Kann beim Aufruf überschrieben werden
+    skip_smoke_tests: false
+    skip_compliance: false
+    skip_self_healing: false
+    skip_vmware_snapshot: false
+    skip_suma_api: false
+    skip_post_upgrade: false
+
+  pre_tasks:
+    - name: Sammle gezielt Netzwerk- und Hardware-Fakten
+      setup:
+        gather_subset:
+          - network
+          - hardware
+      tags: always
+
+    - name: ServiceNow Change öffnen (optional)
+      import_role:
+        name: servicenow_tickets
+      tags: snow
+
+    - name: Preflight-Check: Prüfe Diskspace, Erreichbarkeit, Channel, Snapshots
+      import_role:
+        name: preflight_check
+      tags: preflight
+
+    - name: Setze Ziel-CLM-Version falls übergeben
+      set_fact:
+        target_clm_version: "{{ target_clm_version | default('') }}"
+      tags: always
+
+    - name: Debug: Zeige alle relevanten Variablen und Fakten
+      debug:
+        msg:
+          inventory_hostname: "{{ inventory_hostname }}"
+          ansible_os_family: "{{ ansible_facts['os_family'] }}"
+          ansible_distribution: "{{ ansible_facts['distribution'] }}"
+          ansible_distribution_version: "{{ ansible_facts['distribution_version'] }}"
+          target_clm_version: "{{ target_clm_version }}"
+          rollback: "{{ rollback }}"
+          mail_to: "{{ mail_to }}"
+          vcenter_hostname: "{{ vcenter_hostname }}"
+          suma_api_url: "{{ suma_api_url }}"
+      when: debug_mode | bool
+      tags: debug
+
+    - name: Erstelle VMware Snapshot vor Upgrade (optional)
+      import_role:
+        name: vmware_snapshot
+      when: not skip_vmware_snapshot
+      tags: snapshot
+
+    - name: Weise System per SUSE Manager API dem gewünschten CLM-Channel zu (optional)
+      import_role:
+        name: suma_api_assign_clm
+      when: target_clm_version != "" and not skip_suma_api
+      tags: suma
+
+  roles:
+    - role: common
+      tags: common
+    - role: rhel_upgrade
+      when: ansible_facts['os_family'] == "RedHat"
+      tags: rhel
+    - role: sles_upgrade
+      when: ansible_facts['os_family'] == "Suse"
+      tags: sles
+    - role: post_upgrade
+      when: not skip_post_upgrade
+      tags: post
diff --git a/playbook/requirements.yml b/playbook/requirements.yml
new file mode 100644
index 0000000..6f5e63c
--- /dev/null
+++ b/playbook/requirements.yml
@@ -0,0 +1,4 @@
+collections:
+  - name: community.vmware
+  - name: servicenow.servicenow
+  - name: community.general
diff --git a/playbook/roles/common/tasks/main.yml b/playbook/roles/common/tasks/main.yml
new file mode 100644
index 0000000..597ad39
--- /dev/null
+++ b/playbook/roles/common/tasks/main.yml
@@ -0,0 +1,160 @@
+---
+- name: Prüfe OS-Typ und Version
+  debug:
+    msg: "OS: {{ ansible_facts['os_family'] }} Version: {{ ansible_facts['distribution_version'] }}"
+
+- name: Erstelle Log-Verzeichnis
+  file:
+    path: "{{ log_dir }}"
+    state: directory
+    mode: '0755'
+  register: logdir_result
+  ignore_errors: true
+
+- name: Breche ab, wenn Log-Verzeichnis nicht erstellt werden kann
+  fail:
+    msg: "Log-Verzeichnis konnte nicht erstellt werden: {{ logdir_result.msg | default('Unbekannter Fehler') }}"
+  when: logdir_result is failed
+
+- name: Konfiguriere mailx (Absender)
+  lineinfile:
+    path: /etc/mail.rc
+    line: "set from=auto-upgrade@{{ inventory_hostname }}"
+    create: yes
+    state: present
+  become: true
+  register: mailx_from_result
+  ignore_errors: true
+
+- name: Logge Fehler bei mailx-Konfiguration (Absender)
+  copy:
+    content: "mailx-Konfigurations-Fehler: {{ mailx_from_result.msg | default('Unbekannter Fehler') }}"
+    dest: "{{ log_dir }}/mailx_error_{{ inventory_hostname }}.log"
+  when: mailx_from_result is failed
+
+- name: Konfiguriere mailx für externen SMTP-Server (optional)
+  blockinfile:
+    path: /etc/mail.rc
+    block: |
+      set smtp=smtp://{{ mail_smtp_host }}:{{ mail_smtp_port }}
+      set smtp-auth=login
+      set smtp-auth-user={{ mail_smtp_user }}
+      set smtp-auth-password={{ mail_smtp_pass }}
+      set ssl-verify=ignore
+      set nss-config-dir=/etc/pki/nssdb
+  when: mail_smtp_host is defined and mail_smtp_user is defined and mail_smtp_pass is defined
+  become: true
+  register: mailx_smtp_result
+  ignore_errors: true
+
+- name: Logge Fehler bei mailx-Konfiguration (SMTP)
+  copy:
+    content: "mailx-SMTP-Konfigurations-Fehler: {{ mailx_smtp_result.msg | default('Unbekannter Fehler') }}"
+    dest: "{{ log_dir }}/mailx_error_{{ inventory_hostname }}.log"
+  when: mailx_smtp_result is failed
+
+- name: Sende Failsafe-Mail an app_mail und host_email bei Fehler
+  mail:
+    host: "localhost"
+    port: 25
+    to: |
+      {{ app_mail | default('') }}{{ ',' if app_mail is defined and app_mail != '' else '' }}{{ host_email | default(mail_to) }}
+    subject: "[FAILSAFE] Fehler beim Patch/Upgrade auf {{ inventory_hostname }}"
+    body: |
+      Es ist ein Fehler beim Patch/Upgrade auf {{ inventory_hostname }} (FQDN: {{ ansible_fqdn }}) aufgetreten.
+      Siehe Log-Verzeichnis: {{ log_dir }}
+      Zeit: {{ ansible_date_time.iso8601 }}
+  when: (ansible_failed_result is defined and ansible_failed_result is not none) or (rollback is defined and rollback)
+  ignore_errors: true
+
+- name: Extrahiere Log-Summary für Admin-Mail
+  shell: |
+    tail -n 20 {{ log_dir }}/rhel_upgrade_check.log 2>/dev/null; tail -n 20 {{ log_dir }}/sles_upgrade_check.log 2>/dev/null; tail -n 20 {{ log_dir }}/rhel_upgrade_error_{{ inventory_hostname }}.log 2>/dev/null; tail -n 20 {{ log_dir }}/sles_upgrade_error_{{ inventory_hostname }}.log 2>/dev/null
+  register: log_summary
+  changed_when: false
+  ignore_errors: true
+
+- name: Setze dynamische Liste der Log-Attachments
+  set_fact:
+    log_attachments: >-
+      {{
+        [
+          log_dir + '/rhel_upgrade_check.log',
+          log_dir + '/sles_upgrade_check.log',
+          log_dir + '/rhel_upgrade_error_' + inventory_hostname + '.log',
+          log_dir + '/sles_upgrade_error_' + inventory_hostname + '.log',
+          log_dir + '/snapshot_error_' + inventory_hostname + '.log',
+          log_dir + '/suma_api_error_' + inventory_hostname + '.log',
+          log_dir + '/mailx_error_' + inventory_hostname + '.log',
+          log_dir + '/package_report_' + inventory_hostname + '.log'
+        ] | select('fileexists') | list
+      }}
+
+- name: Sende Log an Linux-Admins (immer, mit Anhang und Summary)
+  mail:
+    host: "localhost"
+    port: 25
+    to: "{{ linux_admins_mail }}"
+    subject: "[LOG] Patch/Upgrade-Log für {{ inventory_hostname }} am {{ ansible_date_time.iso8601 }}"
+    body: |
+      Patch/Upgrade-Log für {{ inventory_hostname }} (FQDN: {{ ansible_fqdn }})
+      Zeit: {{ ansible_date_time.iso8601 }}
+      ---
+      Log-Summary:
+      {{ log_summary.stdout | default('Keine Logdaten gefunden.') }}
+      ---
+      Siehe Anhang für Details.
+    attach: "{{ log_attachments }}"
+  ignore_errors: true
+
+- name: Slack-Benachrichtigung bei kritischen Fehlern (optional)
+  slack:
+    token: "{{ slack_token | default('xoxb-...') }}"
+    msg: "[CRITICAL] Fehler beim Patch/Upgrade auf {{ inventory_hostname }}: {{ ansible_failed_result.msg | default('Unbekannter Fehler') }}"
+    channel: "#linux-admins"
+  when: slack_enabled | default(false) and (ansible_failed_result is defined and ansible_failed_result is not none)
+  ignore_errors: true
+
+- name: Dokumentiere Änderung im CHANGELOG
+  lineinfile:
+    path: "{{ playbook_dir }}/../CHANGELOG.md"
+    line: "{{ ansible_date_time.iso8601 }}: Patch/Upgrade auf {{ inventory_hostname }} (FQDN: {{ ansible_fqdn }}) durchgeführt. Ergebnis: {{ 'OK' if (ansible_failed_result is not defined or ansible_failed_result is none) else 'FEHLER' }}"
+    create: yes
+  delegate_to: localhost
+  ignore_errors: true
+
+- name: Erfasse installierte Paketversionen (RHEL)
+  shell: rpm -qa --qf '%{NAME}-%{VERSION}-%{RELEASE}.%{ARCH}\n'
+  register: rpm_list
+  when: ansible_facts['os_family'] == 'RedHat'
+  changed_when: false
+  ignore_errors: true
+
+- name: Erfasse installierte Paketversionen (SLES)
+  shell: rpm -qa --qf '%{NAME}-%{VERSION}-%{RELEASE}.%{ARCH}\n'
+  register: rpm_list
+  when: ansible_facts['os_family'] == 'Suse'
+  changed_when: false
+  ignore_errors: true
+
+- name: Schreibe Paket-Report ins Log
+  copy:
+    content: "{{ rpm_list.stdout | default('Keine Paketdaten gefunden.') }}"
+    dest: "{{ log_dir }}/package_report_{{ inventory_hostname }}.log"
+  when: rpm_list is defined
+  ignore_errors: true
+
+- name: Sende Paket-Report an Linux-Admins
+  mail:
+    host: "localhost"
+    port: 25
+    to: "{{ linux_admins_mail }}"
+    subject: "[REPORT] Paketversionen nach Patch für {{ inventory_hostname }} am {{ ansible_date_time.iso8601 }}"
+    body: |
+      Paket-Report für {{ inventory_hostname }} (FQDN: {{ ansible_fqdn }})
+      Zeit: {{ ansible_date_time.iso8601 }}
+      Siehe Anhang für Details.
+    attach:
+      - "{{ log_dir }}/package_report_{{ inventory_hostname }}.log"
+  when: rpm_list is defined
+  ignore_errors: true
diff --git a/playbook/roles/compliance_check/tasks/main.yml b/playbook/roles/compliance_check/tasks/main.yml
new file mode 100644
index 0000000..418cab5
--- /dev/null
+++ b/playbook/roles/compliance_check/tasks/main.yml
@@ -0,0 +1,32 @@
+---
+- name: "Compliance-Check: Führe OpenSCAP-Scan durch (sofern installiert)"
+  ansible.builtin.shell: >-
+    oscap xccdf eval --profile xccdf_org.ssgproject.content_profile_standard
+    --results {{ log_dir }}/oscap_result_{{ inventory_hostname }}.xml
+    /usr/share/xml/scap/ssg/content/ssg-$(lsb_release -si | tr '[:upper:]' '[:lower:]')-ds.xml
+  register: oscap_result
+  ignore_errors: true
+  changed_when: false
+
+- name: "Compliance-Check: Führe Lynis-Scan durch (sofern installiert)"
+  ansible.builtin.shell: lynis audit system --quiet --logfile {{ log_dir }}/lynis_{{ inventory_hostname }}.log
+  register: lynis_result
+  ignore_errors: true
+  changed_when: false
+
+- name: Sende Compliance-Report an Linux-Admins
+  community.general.mail:
+    host: "localhost"
+    port: 25
+    to: "{{ linux_admins_mail }}"
+    subject: "[COMPLIANCE] Report für {{ inventory_hostname }} am {{ ansible_date_time.iso8601 }}"
+    body: |
+      Compliance-Report für {{ inventory_hostname }} (FQDN: {{ ansible_fqdn }})
+      Zeit: {{ ansible_date_time.iso8601 }}
+      OpenSCAP-Exit: {{ oscap_result.rc | default('N/A') }}
+      Lynis-Exit: {{ lynis_result.rc | default('N/A') }}
+      Siehe Anhang für Details.
+    attach:
+      - "{{ log_dir }}/oscap_result_{{ inventory_hostname }}.xml"
+      - "{{ log_dir }}/lynis_{{ inventory_hostname }}.log"
+  ignore_errors: true
diff --git a/playbook/roles/post_upgrade/tasks/main.yml b/playbook/roles/post_upgrade/tasks/main.yml
new file mode 100644
index 0000000..c6a06ec
--- /dev/null
+++ b/playbook/roles/post_upgrade/tasks/main.yml
@@ -0,0 +1,39 @@
+---
+- name: Reboot nach Upgrade (optional)
+  ansible.builtin.reboot:
+    msg: "Reboot nach Auto-Upgrade"
+    pre_reboot_delay: 60
+  when: reboot_after_upgrade
+  tags: reboot
+
+- name: "Health-Check: Prüfe, ob kritische Dienste laufen"
+  ansible.builtin.service_facts:
+  tags: health
+
+- name: Prüfe Status der kritischen Dienste
+  ansible.builtin.assert:
+    that:
+      - "(services[item].state == 'running') or (services[item].state == 'started')"
+    fail_msg: "Kritischer Dienst {{ item }} läuft nicht!"
+    success_msg: "Dienst {{ item }} läuft."
+  loop: "{{ critical_services | default(['sshd','cron']) }}"
+  when: item in services
+  tags: health
+
+- name: Führe automatisierte Smoke-Tests durch (optional)
+  import_role:
+    name: smoke_tests
+  when: not skip_smoke_tests
+  tags: smoke
+
+- name: Führe Self-Healing/Remediation durch (optional)
+  import_role:
+    name: self_healing
+  when: not skip_self_healing
+  tags: selfheal
+
+- name: Führe Compliance-Checks durch (optional)
+  import_role:
+    name: compliance_check
+  when: not skip_compliance
+  tags: compliance
diff --git a/playbook/roles/preflight_check/tasks/main.yml b/playbook/roles/preflight_check/tasks/main.yml
new file mode 100644
index 0000000..f3dc0c3
--- /dev/null
+++ b/playbook/roles/preflight_check/tasks/main.yml
@@ -0,0 +1,131 @@
+---
+- name: "Prüfe, ob aktueller Zeitpunkt im Maintenance-Window liegt"
+  ansible.builtin.set_fact:
+    now: "{{ lookup('pipe', 'date +%H:%M') }}"
+    window_start: "{{ maintenance_window_start }}"
+    window_end: "{{ maintenance_window_end }}"
+  changed_when: false
+  tags: preflight
+
+- name: "Maintenance-Window-Check (Abbruch, wenn außerhalb)"
+  ansible.builtin.fail:
+    msg: "Aktuelle Zeit {{ now }} liegt außerhalb des Maintenance-Windows ({{ window_start }} - {{ window_end }}). Upgrade wird abgebrochen!"
+  when: >-
+    (
+      (window_start < window_end and (now < window_start or now > window_end))
+      or
+      (window_start > window_end and (now < window_start and now > window_end))
+    )
+  tags: preflight
+
+- name: "Prüfe freien Speicherplatz auf / (mind. 5GB empfohlen)"
+  ansible.builtin.stat:
+    path: /
+  register: root_stat
+  tags: preflight
+
+- name: Warnung bei zu wenig Speicherplatz
+  ansible.builtin.assert:
+    that:
+      - root_stat.stat.avail_bytes > 5368709120
+    fail_msg: "Wenig freier Speicherplatz auf /: {{ root_stat.stat.avail_bytes | human_readable }} (mind. 5GB empfohlen)"
+    success_msg: "Genügend Speicherplatz auf /: {{ root_stat.stat.avail_bytes | human_readable }}"
+  tags: preflight
+
+- name: Prüfe Erreichbarkeit von SUSE Manager
+  ansible.builtin.uri:
+    url: "{{ suma_api_url }}"
+    method: GET
+    validate_certs: no
+    timeout: 10
+  register: suma_reachable
+  ignore_errors: true
+  retries: 3
+  delay: 5
+  tags: preflight
+
+- name: Warnung, wenn SUSE Manager nicht erreichbar
+  ansible.builtin.assert:
+    that:
+      - suma_reachable.status is defined and suma_reachable.status == 200
+    fail_msg: "SUSE Manager API nicht erreichbar!"
+    success_msg: "SUSE Manager API erreichbar."
+  tags: preflight
+
+- name: Prüfe, ob VMware-Snapshot-Modul verfügbar ist
+  ansible.builtin.shell: "python3 -c 'import pyVmomi'"
+  register: pyvmomi_check
+  ignore_errors: true
+  changed_when: false
+  tags: preflight
+
+- name: Warnung, wenn pyVmomi nicht installiert ist
+  ansible.builtin.assert:
+    that:
+      - pyvmomi_check.rc == 0
+    fail_msg: "pyVmomi (VMware-Modul) nicht installiert!"
+    success_msg: "pyVmomi ist installiert."
+  tags: preflight
+
+- name: Prüfe, ob aktueller SUSE Manager Channel synchronisiert ist
+  ansible.builtin.uri:
+    url: "{{ suma_api_url }}"
+    method: POST
+    body_format: json
+    headers:
+      Content-Type: application/json
+    body: |
+      {
+        "method": "auth.login",
+        "params": ["{{ suma_api_user }}", "{{ suma_api_pass }}"],
+        "id": 1
+      }
+    validate_certs: no
+    timeout: 20
+  register: suma_api_login
+  ignore_errors: true
+  retries: 3
+  delay: 10
+  async: 60
+  poll: 0
+  tags: preflight
+
+- name: Hole Channel-Details für Ziel-CLM-Version
+  ansible.builtin.uri:
+    url: "{{ suma_api_url }}"
+    method: POST
+    body_format: json
+    headers:
+      Content-Type: application/json
+    body: |
+      {
+        "method": "channel.software.getDetails",
+        "params": ["{{ suma_api_login.json.result }}", "{{ target_clm_version }}"],
+        "id": 2
+      }
+    validate_certs: no
+    timeout: 20
+  register: suma_channel_details
+  ignore_errors: true
+  retries: 3
+  delay: 10
+  async: 60
+  poll: 0
+  tags: preflight
+
+- name: Prüfe Channel-Sync-Status
+  ansible.builtin.assert:
+    that:
+      - suma_channel_details.json.result.last_sync is defined
+    fail_msg: "Channel {{ target_clm_version }} ist nicht synchronisiert!"
+    success_msg: "Channel {{ target_clm_version }} wurde zuletzt synchronisiert am {{ suma_channel_details.json.result.last_sync }}."
+  tags: preflight
+
+- name: Slack-Benachrichtigung bei kritischen Fehlern (Beispiel)
+  community.general.slack:
+    token: "{{ slack_token | default('xoxb-...') }}"
+    msg: "[CRITICAL] Fehler beim Preflight-Check auf {{ inventory_hostname }}: {{ ansible_failed_result.msg | default('Unbekannter Fehler') }}"
+    channel: "#linux-admins"
+  when: slack_enabled | default(false) and (ansible_failed_result is defined and ansible_failed_result is not none)
+  ignore_errors: true
+  tags: preflight
diff --git a/playbook/roles/rhel_upgrade/tasks/main.yml b/playbook/roles/rhel_upgrade/tasks/main.yml
new file mode 100644
index 0000000..c07e9b3
--- /dev/null
+++ b/playbook/roles/rhel_upgrade/tasks/main.yml
@@ -0,0 +1,81 @@
+---
+- name: Prüfe, ob dnf verfügbar ist (RHEL 8+)
+  stat:
+    path: /usr/bin/dnf
+  register: dnf_exists
+
+- name: Pre-Upgrade-Check (yum/dnf)
+  shell: |
+    if [ -x /usr/bin/dnf ]; then
+      dnf check-update || true
+    else
+      yum check-update || true
+    fi
+  register: rhel_check
+  changed_when: false
+
+- name: Kernel-Version vor Upgrade sichern
+  shell: uname -r
+  register: kernel_before
+  changed_when: false
+
+- name: Upgrade durchführen (dnf/yum, security-only optional)
+  package:
+    name: "*"
+    state: latest
+  register: upgrade_result
+  when: not upgrade_dry_run and not upgrade_security_only
+  ignore_errors: true
+
+- name: Upgrade durchführen (dnf/yum, nur Security-Updates)
+  dnf:
+    name: "*"
+    state: latest
+    security: yes
+  register: upgrade_result
+  when: not upgrade_dry_run and upgrade_security_only and dnf_exists.stat.exists
+  ignore_errors: true
+
+- name: Upgrade durchführen (yum-plugin-security Fallback)
+  command: yum -y --security update
+  register: upgrade_result
+  when: not upgrade_dry_run and upgrade_security_only and not dnf_exists.stat.exists
+  ignore_errors: true
+
+- name: Logge Fehler beim Upgrade (RHEL)
+  copy:
+    content: "Upgrade-Fehler: {{ upgrade_result.stderr | default(upgrade_result.msg | default('Unbekannter Fehler')) }}"
+    dest: "{{ log_dir }}/rhel_upgrade_error_{{ inventory_hostname }}.log"
+  when: upgrade_result is failed
+
+- name: Setze Rollback-Flag, falls Upgrade fehlschlägt
+  set_fact:
+    rollback: true
+  when: upgrade_result is failed
+
+- name: Breche Playbook ab, wenn Upgrade fehlschlägt
+  fail:
+    msg: "Upgrade fehlgeschlagen, Rollback wird empfohlen! Siehe Log: {{ log_dir }}/rhel_upgrade_error_{{ inventory_hostname }}.log"
+  when: upgrade_result is failed
+
+- name: Logge Upgrade-Output (RHEL)
+  copy:
+    content: "{{ rhel_check.stdout }}"
+    dest: "{{ log_dir }}/rhel_upgrade_check.log"
+  when: upgrade_result is not failed
+
+- name: Kernel-Version nach Upgrade sichern
+  shell: uname -r
+  register: kernel_after
+  changed_when: false
+  when: upgrade_result is not failed
+
+- name: Prüfe, ob Kernel-Upgrade erfolgt ist und setze Reboot nötig
+  set_fact:
+    reboot_after_upgrade: true
+  when: upgrade_result is not failed and (kernel_before.stdout != kernel_after.stdout)
+
+- name: Hinweis auf EUS/Leapp (nur RHEL 7/8)
+  debug:
+    msg: "Für Major Upgrades (z.B. 7->8) empfiehlt Red Hat das Tool 'leapp' oder EUS-Strategien. Siehe https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html-single/upgrading_from_rhel_7_to_rhel_8/index.html"
+  when: ansible_facts['distribution_major_version']|int >= 7
diff --git a/playbook/roles/self_healing/tasks/main.yml b/playbook/roles/self_healing/tasks/main.yml
new file mode 100644
index 0000000..1c223e2
--- /dev/null
+++ b/playbook/roles/self_healing/tasks/main.yml
@@ -0,0 +1,56 @@
+---
+- name: Self-Healing: Starte kritische Dienste neu, falls sie nicht laufen
+  service:
+    name: "{{ item }}"
+    state: restarted
+  register: restart_result
+  loop: "{{ critical_services | default(['sshd','cron']) }}"
+  when: item in services and (services[item].state != 'running' and services[item].state != 'started')
+  ignore_errors: true
+
+- name: Prüfe, ob Restart erfolgreich war
+  service_facts:
+
+- name: Logge Self-Healing-Resultate
+  copy:
+    content: |
+      Self-Healing-Report für {{ inventory_hostname }}
+      Zeit: {{ ansible_date_time.iso8601 }}
+      Kritische Dienste: {{ critical_services | default(['sshd','cron']) }}
+      Restart-Resultate: {{ restart_result.results | default(restart_result) | to_nice_json }}
+      Service-Status nach Restart:
+      {% for item in critical_services | default(['sshd','cron']) %}
+      - {{ item }}: {{ services[item].state | default('unbekannt') }}
+      {% endfor %}
+    dest: "{{ log_dir }}/self_healing_{{ inventory_hostname }}.log"
+  ignore_errors: true
+
+- name: Eskaliere per Mail, wenn Restart fehlschlägt
+  mail:
+    host: "localhost"
+    port: 25
+    to: "{{ linux_admins_mail }}"
+    subject: "[SELF-HEALING-FAIL] Dienst konnte nicht neu gestartet werden auf {{ inventory_hostname }}"
+    body: |
+      Self-Healing konnte einen oder mehrere kritische Dienste nicht erfolgreich neu starten!
+      Siehe Log: {{ log_dir }}/self_healing_{{ inventory_hostname }}.log
+      Zeit: {{ ansible_date_time.iso8601 }}
+  when: >-
+    restart_result is defined and (
+      (restart_result.results is defined and (restart_result.results | selectattr('state', 'ne', 'running') | list | length > 0))
+      or
+      (restart_result.state is defined and restart_result.state != 'running')
+    )
+  ignore_errors: true
+
+- name: Self-Healing: Bereinige /tmp, /var/tmp, /var/log/alt bei wenig Speicherplatz
+  shell: rm -rf /tmp/* /var/tmp/* /var/log/alt/*
+  when: ansible_mounts[0].size_available < 10737418240  # <10GB frei
+  ignore_errors: true
+
+- name: Self-Healing: Netzwerkdienst neu starten bei Netzwerkproblemen
+  service:
+    name: network
+    state: restarted
+  when: ansible_default_ipv4 is not defined or ansible_default_ipv4['address'] is not defined
+  ignore_errors: true
diff --git a/playbook/roles/servicenow_tickets/tasks/main.yml b/playbook/roles/servicenow_tickets/tasks/main.yml
new file mode 100644
index 0000000..7fb70cf
--- /dev/null
+++ b/playbook/roles/servicenow_tickets/tasks/main.yml
@@ -0,0 +1,54 @@
+---
+- name: Erstelle/aktualisiere Change in ServiceNow (vor Patch)
+  community.general.snow_record:
+    instance: "{{ servicenow_instance }}"
+    username: "{{ servicenow_user }}"
+    password: "{{ servicenow_pass }}"
+    state: present
+    table: change_request
+    data:
+      short_description: "OS Patch/Upgrade {{ inventory_hostname }}"
+      description: "Automatisiertes Upgrade via Ansible"
+      category: "Software"
+      risk: "2"
+      impact: "2"
+      priority: "3"
+      work_start: "{{ ansible_date_time.iso8601 }}"
+      requested_by: "{{ servicenow_requested_by | default('ansible_automation') }}"
+  register: snow_change
+  ignore_errors: true
+
+- name: Dokumentiere Change-Nummer
+  debug:
+    msg: "ServiceNow Change: {{ snow_change.record.number | default('N/A') }}"
+
+- name: Erstelle Incident bei Fehlern (optional)
+  community.general.snow_record:
+    instance: "{{ servicenow_instance }}"
+    username: "{{ servicenow_user }}"
+    password: "{{ servicenow_pass }}"
+    state: present
+    table: incident
+    data:
+      short_description: "Patch/Upgrade FAILED auf {{ inventory_hostname }}"
+      description: "Siehe Logs unter {{ log_dir }}. Zeitpunkt: {{ ansible_date_time.iso8601 }}"
+      severity: "2"
+      urgency: "2"
+      impact: "2"
+  when: ansible_failed_result is defined and ansible_failed_result is not none
+  ignore_errors: true
+
+- name: Aktualisiere Change (Abschluss)
+  community.general.snow_record:
+    instance: "{{ servicenow_instance }}"
+    username: "{{ servicenow_user }}"
+    password: "{{ servicenow_pass }}"
+    state: present
+    table: change_request
+    number: "{{ snow_change.record.number | default(omit) }}"
+    data:
+      work_end: "{{ ansible_date_time.iso8601 }}"
+      close_notes: "Upgrade abgeschlossen auf {{ inventory_hostname }}"
+      state: "3"
+  when: snow_change is defined and snow_change.record is defined
+  ignore_errors: true
diff --git a/playbook/roles/sles_upgrade/tasks/main.yml b/playbook/roles/sles_upgrade/tasks/main.yml
new file mode 100644
index 0000000..1f299b6
--- /dev/null
+++ b/playbook/roles/sles_upgrade/tasks/main.yml
@@ -0,0 +1,62 @@
+---
+- name: Pre-Upgrade-Check (zypper)
+  shell: zypper list-updates || true
+  register: sles_check
+  changed_when: false
+
+- name: Kernel-Version vor Upgrade sichern
+  shell: uname -r
+  register: kernel_before
+  changed_when: false
+
+- name: Upgrade durchführen (zypper, full)
+  zypper:
+    name: '*'
+    state: latest
+    extra_args: '--non-interactive'
+  register: upgrade_result
+  when: not upgrade_dry_run and not upgrade_security_only
+  ignore_errors: true
+
+- name: Upgrade durchführen (zypper, nur Security)
+  command: zypper --non-interactive patch --category security
+  register: upgrade_result
+  when: not upgrade_dry_run and upgrade_security_only
+  ignore_errors: true
+
+- name: Logge Fehler beim Upgrade (SLES)
+  copy:
+    content: "Upgrade-Fehler: {{ upgrade_result.stderr | default(upgrade_result.msg | default('Unbekannter Fehler')) }}"
+    dest: "{{ log_dir }}/sles_upgrade_error_{{ inventory_hostname }}.log"
+  when: upgrade_result is failed
+
+- name: Setze Rollback-Flag, falls Upgrade fehlschlägt
+  set_fact:
+    rollback: true
+  when: upgrade_result is failed
+
+- name: Breche Playbook ab, wenn Upgrade fehlschlägt
+  fail:
+    msg: "Upgrade fehlgeschlagen, Rollback wird empfohlen! Siehe Log: {{ log_dir }}/sles_upgrade_error_{{ inventory_hostname }}.log"
+  when: upgrade_result is failed
+
+- name: Logge Upgrade-Output (SLES)
+  copy:
+    content: "{{ sles_check.stdout }}"
+    dest: "{{ log_dir }}/sles_upgrade_check.log"
+  when: upgrade_result is not failed
+
+- name: Kernel-Version nach Upgrade sichern
+  shell: uname -r
+  register: kernel_after
+  changed_when: false
+  when: upgrade_result is not failed
+
+- name: Prüfe, ob Kernel-Upgrade erfolgt ist und setze Reboot nötig
+  set_fact:
+    reboot_after_upgrade: true
+  when: upgrade_result is not failed and (kernel_before.stdout != kernel_after.stdout)
+
+- name: Hinweis auf SLE-Upgrade-Tool
+  debug:
+    msg: "Für Major Upgrades (z.B. SLES 12->15) empfiehlt SUSE das Tool 'SUSEConnect' und 'zypper migration'. Siehe https://documentation.suse.com/sles/15-SP4/html/SLES-all/cha-upgrade.html"
diff --git a/playbook/roles/smoke_tests/tasks/main.yml b/playbook/roles/smoke_tests/tasks/main.yml
new file mode 100644
index 0000000..b45e8bc
--- /dev/null
+++ b/playbook/roles/smoke_tests/tasks/main.yml
@@ -0,0 +1,108 @@
+- name: Prüfe, ob HTTP-Service installiert ist (Apache/Nginx)
+  ansible.builtin.stat:
+    path: /usr/sbin/httpd
+  register: apache_check
+  ignore_errors: true
+
+- name: Prüfe, ob Nginx installiert ist
+  ansible.builtin.stat:
+    path: /usr/sbin/nginx
+  register: nginx_check
+  ignore_errors: true
+
+- name: "Smoke-Test: Prüfe HTTP-Endpoint (nur wenn Web-Server installiert)"
+  ansible.builtin.uri:
+    url: "{{ smoke_test_url | default('http://localhost') }}"
+    status_code: 200
+    return_content: false
+  register: http_result
+  ignore_errors: true
+  when: apache_check.stat.exists or nginx_check.stat.exists
+
+- name: "Smoke-Test: Prüfe offenen Port (optional)"
+  ansible.builtin.wait_for:
+    port: "{{ smoke_test_port | default(80) }}"
+    host: "{{ smoke_test_host | default('localhost') }}"
+    timeout: 5
+  register: port_result
+  ignore_errors: true
+
+- name: Prüfe, ob MySQL/MariaDB installiert ist
+  ansible.builtin.stat:
+    path: /usr/bin/mysql
+  register: mysql_check
+  ignore_errors: true
+
+- name: "Smoke-Test: Prüfe Datenbankverbindung (nur wenn MySQL installiert)"
+  ansible.builtin.shell: "echo 'select 1' | mysql -h {{ smoke_test_db_host | default('localhost') }} -u {{ smoke_test_db_user | default('root') }} --password={{ smoke_test_db_pass | default('') }} {{ smoke_test_db_name | default('') }}"
+  register: db_result
+  ignore_errors: true
+  when: mysql_check.stat.exists and smoke_test_db_host is defined
+
+- name: Prüfe, ob Oracle installiert ist
+  ansible.builtin.stat:
+    path: /u01/app/oracle/product
+  register: oracle_check
+  ignore_errors: true
+
+- name: "Oracle DB: Finde alle Oracle SIDs (nur wenn Oracle installiert)"
+  ansible.builtin.shell: |
+    ps -ef | grep -E "ora_pmon_[A-Z0-9_]+" | grep -v grep | awk '{print $NF}' | sed 's/ora_pmon_//'
+  register: oracle_sids
+  changed_when: false
+  ignore_errors: true
+  when: oracle_check.stat.exists
+
+- name: "Oracle DB: Finde alle Oracle Listener (nur wenn Oracle installiert)"
+  ansible.builtin.shell: |
+    ps -ef | grep -E "tnslsnr" | grep -v grep | awk '{print $NF}' | sed 's/tnslsnr//'
+  register: oracle_listeners
+  changed_when: false
+  ignore_errors: true
+  when: oracle_check.stat.exists
+
+- name: "Oracle DB: Prüfe alle gefundenen SIDs (nur wenn Oracle installiert)"
+  ansible.builtin.shell: |
+    export ORACLE_HOME={{ item.oracle_home | default('/u01/app/oracle/product/19.0.0/dbhome_1') }}
+    export PATH=$ORACLE_HOME/bin:$PATH
+    export ORACLE_SID={{ item.sid }}
+    sqlplus -S / as sysdba <<EOF
+    select 'OK' as status from dual;
+    exit;
+    EOF
+  register: oracle_sid_check
+  loop: "{{ oracle_sids.stdout_lines | map('regex_replace', '^(.+)$', '{\"sid\": \"\\1\", \"oracle_home\": \"/u01/app/oracle/product/19.0.0/dbhome_1\"}') | map('from_json') | list }}"
+  ignore_errors: true
+  when: oracle_check.stat.exists and oracle_sids.stdout_lines | length > 0
+
+- name: "Oracle DB: Prüfe alle gefundenen Listener (nur wenn Oracle installiert)"
+  ansible.builtin.shell: |
+    export ORACLE_HOME={{ item.oracle_home | default('/u01/app/oracle/product/19.0.0/dbhome_1') }}
+    export PATH=$ORACLE_HOME/bin:$PATH
+    lsnrctl status {{ item.listener }}
+  register: oracle_listener_check
+  loop: "{{ oracle_listeners.stdout_lines | map('regex_replace', '^(.+)$', '{\"listener\": \"\\1\", \"oracle_home\": \"/u01/app/oracle/product/19.0.0/dbhome_1\"}') | map('from_json') | list }}"
+  ignore_errors: true
+  when: oracle_check.stat.exists and oracle_listeners.stdout_lines | length > 0
+
+- name: "Oracle DB: Logge Oracle-Check-Ergebnisse (nur wenn Oracle installiert)"
+  ansible.builtin.copy:
+    content: |
+      Oracle DB Check für {{ inventory_hostname }}
+      Zeit: {{ ansible_date_time.iso8601 }}
+      Gefundene SIDs: {{ oracle_sids.stdout_lines | default([]) }}
+      Gefundene Listener: {{ oracle_listeners.stdout_lines | default([]) }}
+      SID-Check-Resultate: {{ oracle_sid_check.results | default([]) | to_nice_json }}
+      Listener-Check-Resultate: {{ oracle_listener_check.results | default([]) | to_nice_json }}
+    dest: "{{ log_dir }}/oracle_check_{{ inventory_hostname }}.log"
+  ignore_errors: true
+  when: oracle_check.stat.exists
+
+- name: Smoke-Test Ergebnis zusammenfassen
+  ansible.builtin.debug:
+    msg:
+      - "HTTP-Test: {{ http_result.status | default('NOT INSTALLED') }}"
+      - "Port-Test: {{ port_result.state | default('FAILED') }}"
+      - "DB-Test: {{ db_result.rc | default('NOT INSTALLED') }}"
+      - "Oracle SIDs gefunden: {{ oracle_sids.stdout_lines | length | default(0) if oracle_check.stat.exists else 'NOT INSTALLED' }}"
+      - "Oracle Listener gefunden: {{ oracle_listeners.stdout_lines | length | default(0) if oracle_check.stat.exists else 'NOT INSTALLED' }}"
diff --git a/playbook/roles/suma_api_assign_clm/tasks/main.yml b/playbook/roles/suma_api_assign_clm/tasks/main.yml
new file mode 100644
index 0000000..13ea14b
--- /dev/null
+++ b/playbook/roles/suma_api_assign_clm/tasks/main.yml
@@ -0,0 +1,151 @@
+---
+- name: Setze Variablen für SUSE Manager API
+  set_fact:
+    suma_api_url: "{{ suma_api_url }}"
+    suma_api_user: "{{ suma_api_user }}"
+    suma_api_pass: "{{ suma_api_pass }}"
+
+- name: Hole System-ID aus SUSE Manager
+  uri:
+    url: "{{ suma_api_url }}"
+    method: POST
+    body_format: json
+    headers:
+      Content-Type: application/json
+    body: |
+      {
+        "method": "auth.login",
+        "params": ["{{ suma_api_user }}", "{{ suma_api_pass }}"],
+        "id": 1
+      }
+    validate_certs: no
+  register: suma_api_login
+  ignore_errors: true
+
+- name: Logge Fehler bei API-Login
+  copy:
+    content: "API-Login-Fehler: {{ suma_api_login.msg | default('Unbekannter Fehler') }}"
+    dest: "{{ log_dir }}/suma_api_error_{{ inventory_hostname }}.log"
+  when: suma_api_login.failed
+
+- name: Breche Playbook ab, wenn API-Login fehlschlägt
+  fail:
+    msg: "SUSE Manager API-Login fehlgeschlagen! Siehe Log: {{ log_dir }}/suma_api_error_{{ inventory_hostname }}.log"
+  when: suma_api_login.failed
+
+- name: Setze Session-ID
+  set_fact:
+    suma_session: "{{ suma_api_login.json.result }}"
+
+- name: Suche System-ID anhand Hostname
+  uri:
+    url: "{{ suma_api_url }}"
+    method: POST
+    body_format: json
+    headers:
+      Content-Type: application/json
+    body: |
+      {
+        "method": "system.getId",
+        "params": ["{{ suma_session }}", "{{ inventory_hostname }}"],
+        "id": 2
+      }
+    validate_certs: no
+  register: suma_system_id
+  ignore_errors: true
+
+- name: Logge Fehler bei System-ID-Suche
+  copy:
+    content: "System-ID-Fehler: {{ suma_system_id.msg | default('Unbekannter Fehler') }}"
+    dest: "{{ log_dir }}/suma_api_error_{{ inventory_hostname }}.log"
+  when: suma_system_id.failed
+
+- name: Breche Playbook ab, wenn System-ID nicht gefunden
+  fail:
+    msg: "System-ID nicht gefunden! Siehe Log: {{ log_dir }}/suma_api_error_{{ inventory_hostname }}.log"
+  when: suma_system_id.failed
+
+- name: Suche Channel-ID anhand Ziel-CLM-Version
+  uri:
+    url: "{{ suma_api_url }}"
+    method: POST
+    body_format: json
+    headers:
+      Content-Type: application/json
+    body: |
+      {
+        "method": "channel.software.listAllChannels",
+        "params": ["{{ suma_session }}"],
+        "id": 3
+      }
+    validate_certs: no
+  register: suma_channels
+  ignore_errors: true
+
+- name: Logge Fehler bei Channel-Suche
+  copy:
+    content: "Channel-Such-Fehler: {{ suma_channels.msg | default('Unbekannter Fehler') }}"
+    dest: "{{ log_dir }}/suma_api_error_{{ inventory_hostname }}.log"
+  when: suma_channels.failed
+
+- name: Breche Playbook ab, wenn Channel-Suche fehlschlägt
+  fail:
+    msg: "Channel-Suche fehlgeschlagen! Siehe Log: {{ log_dir }}/suma_api_error_{{ inventory_hostname }}.log"
+  when: suma_channels.failed
+
+- name: Finde Channel-ID für Ziel-CLM-Version
+  set_fact:
+    target_channel_label: "{{ item.label }}"
+  loop: "{{ suma_channels.json.result }}"
+  when: item.name is search(target_clm_version)
+  loop_control:
+    label: "{{ item.label }}"
+
+- name: Breche ab, wenn kein passender Channel gefunden wurde
+  fail:
+    msg: "Kein passender CLM-Channel für '{{ target_clm_version }}' gefunden!"
+  when: target_channel_label is not defined
+
+- name: Weise System dem Channel zu
+  uri:
+    url: "{{ suma_api_url }}"
+    method: POST
+    body_format: json
+    headers:
+      Content-Type: application/json
+    body: |
+      {
+        "method": "system.setBaseChannel",
+        "params": ["{{ suma_session }}", {{ suma_system_id.json.result[0].id }}, "{{ target_channel_label }}"],
+        "id": 4
+      }
+    validate_certs: no
+  register: suma_assign_result
+  ignore_errors: true
+
+- name: Logge Fehler bei Channel-Zuweisung
+  copy:
+    content: "Channel-Zuweisungs-Fehler: {{ suma_assign_result.msg | default('Unbekannter Fehler') }}"
+    dest: "{{ log_dir }}/suma_api_error_{{ inventory_hostname }}.log"
+  when: suma_assign_result.failed
+
+- name: Breche Playbook ab, wenn Channel-Zuweisung fehlschlägt
+  fail:
+    msg: "Channel-Zuweisung fehlgeschlagen! Siehe Log: {{ log_dir }}/suma_api_error_{{ inventory_hostname }}.log"
+  when: suma_assign_result.failed
+
+- name: Logout von der SUSE Manager API
+  uri:
+    url: "{{ suma_api_url }}"
+    method: POST
+    body_format: json
+    headers:
+      Content-Type: application/json
+    body: |
+      {
+        "method": "auth.logout",
+        "params": ["{{ suma_session }}"],
+        "id": 5
+      }
+    validate_certs: no
+  when: suma_session is defined
diff --git a/playbook/roles/vmware_snapshot/tasks/main.yml b/playbook/roles/vmware_snapshot/tasks/main.yml
new file mode 100644
index 0000000..0e3ccc3
--- /dev/null
+++ b/playbook/roles/vmware_snapshot/tasks/main.yml
@@ -0,0 +1,65 @@
+---
+- name: Erstelle VMware Snapshot vor Upgrade
+  community.vmware.vmware_guest_snapshot:
+    hostname: "{{ vcenter_hostname }}"
+    username: "{{ vcenter_user }}"
+    password: "{{ vcenter_password }}"
+    validate_certs: no
+    datacenter: "{{ vcenter_datacenter }}"
+    folder: "{{ vcenter_folder | default('/') }}"
+    name: "{{ inventory_hostname }}"
+    state: present
+    snapshot_name: "pre-upgrade-{{ inventory_hostname }}-{{ ansible_date_time.iso8601_basic }}"
+    description: "Snapshot vor Auto-Upgrade"
+    memory: yes
+    quiesce: yes
+  delegate_to: localhost
+  register: snapshot_result
+  failed_when: snapshot_result.failed is defined and snapshot_result.failed
+  retries: 3
+  delay: 10
+
+- name: Logge Fehler bei Snapshot-Erstellung
+  ansible.builtin.copy:
+    content: "Snapshot-Fehler: {{ snapshot_result.msg | default('Unbekannter Fehler') }}"
+    dest: "{{ log_dir }}/snapshot_error_{{ inventory_hostname }}.log"
+  when: snapshot_result is failed
+
+- name: Setze Rollback-Flag, falls Snapshot-Erstellung fehlschlägt
+  ansible.builtin.set_fact:
+    rollback: true
+  when: snapshot_result is failed
+
+- name: Breche Playbook ab, wenn Snapshot-Erstellung fehlschlägt
+  ansible.builtin.fail:
+    msg: "Snapshot-Erstellung fehlgeschlagen, Upgrade wird abgebrochen! Siehe Log: {{ log_dir }}/snapshot_error_{{ inventory_hostname }}.log"
+  when: snapshot_result is failed
+
+- name: "Rollback: Setze VM auf Snapshot zurück (nur bei Fehler und wenn aktiviert)"
+  community.vmware.vmware_guest_snapshot:
+    hostname: "{{ vcenter_hostname }}"
+    username: "{{ vcenter_user }}"
+    password: "{{ vcenter_password }}"
+    validate_certs: no
+    datacenter: "{{ vcenter_datacenter }}"
+    folder: "{{ vcenter_folder | default('/') }}"
+    name: "{{ inventory_hostname }}"
+    state: revert
+    snapshot_name: "pre-upgrade-{{ inventory_hostname }}-{{ ansible_date_time.iso8601_basic }}"
+  when: rollback is defined and rollback
+  delegate_to: localhost
+
+- name: Lösche VMware Snapshot nach erfolgreichem Patchlauf (optional)
+  community.vmware.vmware_guest_snapshot:
+    hostname: "{{ vcenter_hostname }}"
+    username: "{{ vcenter_user }}"
+    password: "{{ vcenter_password }}"
+    validate_certs: no
+    datacenter: "{{ vcenter_datacenter }}"
+    folder: "{{ vcenter_folder | default('/') }}"
+    name: "{{ inventory_hostname }}"
+    state: absent
+    snapshot_name: "pre-upgrade-{{ inventory_hostname }}-{{ ansible_date_time.iso8601_basic }}"
+  delegate_to: localhost
+  when: (upgrade_result is defined and upgrade_result is not failed) and (snapshot_cleanup | default(true))
+  ignore_errors: true
diff --git a/playbook/servicenow_inventory.yml b/playbook/servicenow_inventory.yml
new file mode 100644
index 0000000..03989cf
--- /dev/null
+++ b/playbook/servicenow_inventory.yml
@@ -0,0 +1,19 @@
+plugin: servicenow.servicenow.now
+instance: "{{ servicenow_instance }}"
+username: "{{ servicenow_user }}"
+password: "{{ servicenow_pass }}"
+table: 'cmdb_ci_server'
+fields:
+  - fqdn
+  - name
+  - u_app_group
+  - u_app_mail
+  - u_host_email
+keyed_groups:
+  - key: u_app_group
+    prefix: ''
+    separator: ''
+compose:
+  ansible_host: fqdn
+  app_mail: u_app_mail
+  host_email: u_host_email
diff --git a/scripts/install_collections.sh b/scripts/install_collections.sh
new file mode 100755
index 0000000..a72e5a8
--- /dev/null
+++ b/scripts/install_collections.sh
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -euo pipefail
+cd "$(dirname "$0")/.."
+ansible-galaxy collection install -r playbook/requirements.yml --force
diff --git a/scripts/run_patch.sh b/scripts/run_patch.sh
new file mode 100755
index 0000000..066c8be
--- /dev/null
+++ b/scripts/run_patch.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+APP_GROUP=${1:-}
+TARGET_CLM=${2:-}
+EXTRA_VARS=${3:-}
+
+if [[ -z "$APP_GROUP" ]]; then
+  echo "Usage: $0 <app-group> [target_clm_version] [extra_vars]" >&2
+  exit 1
+fi
+
+CMD=(ansible-playbook playbook/playbook.yml -l "$APP_GROUP" --ask-vault-pass)
+
+if [[ -n "$TARGET_CLM" ]]; then
+  CMD+=( -e "target_clm_version=$TARGET_CLM" )
+fi
+
+if [[ -n "$EXTRA_VARS" ]]; then
+  CMD+=( -e "$EXTRA_VARS" )
+fi
+
+# Tags können bei Bedarf angepasst werden, z.B. nur preflight+upgrade
+# CMD+=( --tags preflight,common,rhel,sles,post )
+
+exec "${CMD[@]}"