flatten the "playbooks" directory for better structure

Because of how Ansible local relative search paths work, the global
"files" and "templates" directories need to be next to the playbooks.
However its not intuitive to look into the playbooks directory to find
the files and templates for a host.
Therefore flatten the playbooks directory to get rid of this confusing
structure.

Also see:
https://docs.ansible.com/ansible/latest/playbook_guide/playbook_pathing.html#resolving-local-relative-paths

files/chaosknoten/configs/lists/compose/compose.yaml

@@ -0,0 +1,72 @@
+services:
+  mailman-core:
+    restart: unless-stopped
+    image: maxking/mailman-core:0.5 # Use a specific version tag (tag latest is not published)
+    container_name: mailman-core
+    hostname: mailman-core
+    volumes:
+      - /opt/mailman/core:/opt/mailman/
+    stop_grace_period: 30s
+    links:
+      - database:database
+    depends_on:
+      - database
+    environment:
+      - DATABASE_URL=postgresql://mailman:wvQjbMRnwFuxGEPz@database/mailmandb
+      - DATABASE_TYPE=postgres
+      - DATABASE_CLASS=mailman.database.postgresql.PostgreSQLDatabase
+      - HYPERKITTY_API_KEY=ITfRjushI6FP0TLMnRpZxlfB2e17DN86
+      - MTA=postfix
+    ports:
+      - "127.0.0.1:8001:8001" # API
+      - "127.0.0.1:8024:8024" # LMTP - incoming emails
+    networks:
+      mailman:
+
+  mailman-web:
+    restart: unless-stopped
+    image: maxking/mailman-web:0.5 # Use a specific version tag (tag latest is not published)
+    container_name: mailman-web
+    hostname: mailman-web
+    depends_on:
+      - database
+    links:
+      - mailman-core:mailman-core
+      - database:database
+    volumes:
+      - /opt/mailman/web:/opt/mailman-web-data
+    environment:
+      - DATABASE_TYPE=postgres
+      - DATABASE_URL=postgresql://mailman:wvQjbMRnwFuxGEPz@database/mailmandb
+      - "DJANGO_ALLOWED_HOSTS=lists.hamburg.ccc.de,lists.c3lingo.org"
+      - HYPERKITTY_API_KEY=ITfRjushI6FP0TLMnRpZxlfB2e17DN86
+      - SERVE_FROM_DOMAIN=lists.hamburg.ccc.de
+      - SECRET_KEY=ugfknEYBaFVc62R1jlIjnkizQaqr7tSt
+      - MAILMAN_ADMIN_USER=ccchh-admin
+      - MAILMAN_ADMIN_EMAIL=tony@cowtest.hamburg.ccc.de
+    ports:
+      - "127.0.0.1:8000:8000" # HTTP
+      - "127.0.0.1:8080:8080" # uwsgi
+    networks:
+      mailman:
+
+  database:
+    restart: unless-stopped
+    environment:
+      - POSTGRES_DB=mailmandb
+      - POSTGRES_USER=mailman
+      - POSTGRES_PASSWORD=wvQjbMRnwFuxGEPz
+    image: postgres:12-alpine
+    volumes:
+      - /opt/mailman/database:/var/lib/postgresql/data
+    networks:
+      mailman:
+
+networks:
+  mailman:
+    driver: bridge
+    ipam:
+      driver: default
+      config:
+        -
+          subnet: 172.19.199.0/24

files/chaosknoten/configs/lists/nginx/lists.c3lingo.org.conf

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+server {
+	root /var/www/html;
+    server_name lists.c3lingo.org; # managed by Certbot
+
+    listen [::]:443 ssl; # managed by Certbot
+    listen 443 ssl; # managed by Certbot
+
+    ssl_certificate /etc/letsencrypt/live/lists.c3lingo.org/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/lists.c3lingo.org/privkey.pem; # managed by Certbot
+    # verify chain of trust of OCSP response using Root CA and Intermediate certs
+    ssl_trusted_certificate /etc/letsencrypt/live/lists.c3lingo.org/chain.pem;
+
+    # HSTS (ngx_http_headers_module is required) (63072000 seconds)
+    add_header Strict-Transport-Security "max-age=63072000" always;
+
+    location /static {
+        alias /opt/mailman/web/static;
+        autoindex off;
+    }
+
+    location / {
+          uwsgi_pass localhost:8080;
+          include uwsgi_params;
+          uwsgi_read_timeout 300;
+    }
+}

files/chaosknoten/configs/lists/nginx/lists.hamburg.ccc.de.conf

@@ -0,0 +1,26 @@
+server {
+	root /var/www/html;
+    server_name lists.hamburg.ccc.de; # managed by Certbot
+
+    listen [::]:443 ssl; # managed by Certbot
+    listen 443 ssl; # managed by Certbot
+
+    ssl_certificate /etc/letsencrypt/live/lists.hamburg.ccc.de/fullchain.pem; # managed by Certbot
+    ssl_certificate_key /etc/letsencrypt/live/lists.hamburg.ccc.de/privkey.pem; # managed by Certbot
+    # verify chain of trust of OCSP response using Root CA and Intermediate certs
+    ssl_trusted_certificate /etc/letsencrypt/live/lists.hamburg.ccc.de/chain.pem;
+
+    # HSTS (ngx_http_headers_module is required) (63072000 seconds)
+    add_header Strict-Transport-Security "max-age=63072000" always;
+
+    location /static {
+        alias /opt/mailman/web/static;
+        autoindex off;
+    }
+
+    location / {
+          uwsgi_pass localhost:8080;
+          include uwsgi_params;
+          uwsgi_read_timeout 300;
+    }
+}