Huge role refactoring/cleanup. Other commits will propably follow. Because some bugs will exist. Still important for longrun and also for auto docs/help/slideshow generation

roles/web-app-gitlab/README.md

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+# GitLab
+
+## Description
+
+Accelerate your development with GitLab, an all-in-one platform for source code management, CI/CD, and more. Experience a robust and collaborative environment that empowers your development process.
+
+## Overview
+
+This role deploys GitLab using Docker, automating the installation, configuration, and management of your GitLab server. It integrates with an external PostgreSQL database and sets up an Nginx reverse proxy, streamlining your GitLab deployment through efficient container orchestration and customizable Ansible variables.
+
+For a detailed walkthrough of this role, please refer to the [ChatGPT Session Transcript](https://chat.openai.com/share/1b0147bf-d4de-4790-b8ed-c332aa4e3ce3).
+
+## Features
+
+- **GitLab Installation:** Automatically deploys GitLab within a Docker container.
+- **External PostgreSQL Database:** Configures GitLab to connect to an external PostgreSQL database.
+- **Nginx Reverse Proxy Integration:** Simplifies secure access with an Nginx reverse proxy.
+- **Customizable Configuration:** Easily tailor deployment settings using Ansible variables and templates.
+
+## Further Resources
+
+- [GitLab Official Website](https://about.gitlab.com/)
+- [Running GitLab on Docker](https://ralph.blog.imixs.com/2019/06/09/running-gitlab-on-docker/)
+- [Reducing GitLab Memory Consumption](https://techoverflow.net/2020/04/18/how-i-reduced-gitlab-memory-consumption-in-my-web-app-based-setup/)
+
+## Credits
+
+Developed and maintained by **Kevin Veen-Birkenbach**.  
+Learn more at [veen.world](https://www.veen.world).
+
+Part of the [CyMaIS Project](https://github.com/kevinveenbirkenbach/cymais)  
+Licensed under [CyMaIS NonCommercial License (CNCL)](https://s.veen.world/cncl).

roles/web-app-gitlab/meta/main.yml

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+---
+galaxy_info:
+  author: "Kevin Veen-Birkenbach"
+  description: "Accelerate your development with GitLab, an all-in-one platform for source code management, CI/CD, and more. Experience a robust and collaborative environment that empowers your development process."
+  license: "CyMaIS NonCommercial License (CNCL)"
+  license_url: "https://s.veen.world/cncl"
+  company: |
+    Kevin Veen-Birkenbach
+    Consulting & Coaching Solutions
+    https://www.veen.world
+  galaxy_tags:
+    - gitlab
+    - docker
+    - ci/cd
+    - self-hosted
+    - version control
+  repository: https://s.veen.world/cymais
+  issue_tracker_url: https://s.veen.world/cymaisissues
+  documentation: https://s.veen.world/cymais
+  logo:
+    class: "fa-solid fa-code-branch"
+  run_after:
+    - web-app-matomo
+    - web-app-keycloak
+    - web-app-mailu
+dependencies: []

roles/web-app-gitlab/meta/schema.yml

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+credentials:
+  initial_root_password:
+    description: "Initial password for the GitLab root user"
+    algorithm: "sha256"
+    validation: "^[a-f0-9]{64}$"

roles/web-app-gitlab/tasks/main.yml

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+---
+- name: "include service-rdbms-central"
+  include_role: 
+    name: service-rdbms-central
+
+- name: "include role webserver-proxy-domain for {{application_id}}"
+  include_role:
+    name: webserver-proxy-domain
+  vars:
+    domain:   "{{ domains | get_domain(application_id) }}"
+    http_port:   "{{ ports.localhost.http[application_id] }}"

roles/web-app-gitlab/templates/docker-compose.yml.j2

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+{% include 'roles/docker-compose/templates/base.yml.j2' %}
+
+  web:
+    image: "{{ applications[application_id].images.gitlab }}"
+    hostname: '{{domains | get_domain(application_id)}}'
+{% include 'roles/docker-container/templates/base.yml.j2' %}
+    ports:
+      - "127.0.0.1:{{ports.localhost.http[application_id]}}:80"
+      - "{{ports.public.ssh[application_id]}}:22"
+    volumes:
+      - 'config:/etc/gitlab'
+      - 'logs:/var/log/gitlab'
+      - 'data:/var/opt/gitlab'
+    shm_size: '256m'
+{% include 'roles/docker-container/templates/depends_on/dmbs_excl.yml.j2' %}
+{% include 'roles/docker-container/templates/networks.yml.j2' %}
+
+{% include 'roles/docker-compose/templates/volumes.yml.j2' %}
+  redis:
+  config:
+  logs:
+  data:
+
+{% include 'roles/docker-compose/templates/networks.yml.j2' %}

roles/web-app-gitlab/templates/env.j2

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+{# env.j2 #}
+{% set config_lines = [
+  "external_url 'https://{{ domain }}'",
+  "postgresql['enable']=false",
+  "gitlab_rails['gitlab_shell_ssh_port']={{ ports.public.ssh[application_id] }}",
+  "gitlab_rails['db_adapter']='postgresql'",
+  "gitlab_rails['db_encoding']='utf8'",
+  "gitlab_rails['db_host']='{{ database_host }}'",
+  "gitlab_rails['db_port']='{{ database_port }}'",
+  "gitlab_rails['db_username']='{{ database_username }}'",
+  "gitlab_rails['db_password']='{{ database_password }}'",
+  "gitlab_rails['db_database']=\"{{ database_name }}\"",
+  "nginx['listen_port']=80",
+  "nginx['listen_https']=false",
+  "",
+  "gitlab_rails['initial_root_password']=\"{{ gitlab_initial_root_password }}\"",
+  "",
+  "redis['enable']=false",
+  "gitlab_rails['redis_host']='redis'",
+  "gitlab_rails['redis_port']='6379'"
+] %}
+GITLAB_OMNIBUS_CONFIG="{{ config_lines | join('\\n') }}"

roles/web-app-gitlab/vars/configuration.yml

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+images:
+  gitlab:             "gitlab/gitlab-ee:latest"
+features:
+  matomo:             true
+  css:                true
+  portfolio_iframe:   true
+  central_database:   true
+docker:
+  services:
+    redis:
+      enabled: true
+    database: 
+      enabled: true

roles/web-app-gitlab/vars/main.yml

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+application_id:     "gitlab"
+database_type:      "postgres"