reorganize (config) files and templates into one "resources" dir

This groups the files and templates for each host together and therefore
makes it easier to see all the (config) files for a host.

Also clean up incorrect, unused docker_compose config for mumble and
clean up unused engelsystem configs.

resources/chaosknoten/tickets/docker_compose/compose.yaml.j2

@@ -0,0 +1,48 @@
+---
+services:
+  database:
+    image: docker.io/library/postgres:15-alpine
+    environment:
+      - "POSTGRES_USER=pretix"
+      - "POSTGRES_PASSWORD={{ lookup("community.general.passwordstore", "noc/vm-secrets/chaosknoten/tickets/DB_PASSWORD", create=false, missing="error") }}"
+      - "POSTGRES_DB=pretix"
+    volumes:
+      - database:/var/lib/postgresql/data
+    networks:
+      backend:
+    restart: unless-stopped
+  
+  redis:
+    image: docker.io/library/redis:7
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis:/rdata
+    # run redis-server, save a snapshot every 60 seconds if there has been at least 1 write
+    command: ["redis-server", "--save", "60", "1"]
+    restart: unless-stopped
+    networks:
+      backend:
+
+  pretix:
+    image: docker.io/pretix/standalone:2024.8
+    command: ["all"]
+    ports:
+      - "8345:80"
+    volumes:
+      - ./configs/pretix.cfg:/etc/pretix/pretix.cfg
+      - pretix:/data
+    restart: unless-stopped
+    networks:
+      backend:
+      frontend:
+
+volumes:
+  database: {}
+  pretix: {}
+  redis: {}
+
+networks:
+  backend:
+    internal: true
+  frontend:

resources/chaosknoten/tickets/docker_compose/pretix.cfg.j2

@@ -0,0 +1,26 @@
+[pretix]
+instance_name=CCCHH Tickets
+url=https://tickets.hamburg.ccc.de
+currency=EUR
+datadir=/data
+trust_x_forwarded_for=on
+trust_x_forwarded_proto=on
+
+[database]
+backend=postgresql
+name=pretix
+user=pretix
+password={{ lookup("community.general.passwordstore", "noc/vm-secrets/chaosknoten/tickets/DB_PASSWORD", create=false, missing="error") }}
+host=database
+
+[mail]
+from=tickets@hamburg.ccc.de
+host=cow-intern.hamburg.ccc.de
+
+[redis]
+location=redis://redis/0
+sessions=true
+
+[celery]
+backend=redis://redis/0
+broker=redis://redis/1

resources/chaosknoten/tickets/nginx/tickets.hamburg.ccc.de.conf

@@ -0,0 +1,48 @@
+# partly generated 2022-01-08, Mozilla Guideline v5.6, nginx 1.17.7, OpenSSL 1.1.1k, intermediate configuration
+# https://ssl-config.mozilla.org/#server=nginx&version=1.17.7&config=intermediate&openssl=1.1.1k&guideline=5.6
+server {
+    # Listen on a custom port for the proxy protocol.
+    listen 8443 ssl http2 proxy_protocol;
+    # Make use of the ngx_http_realip_module to set the $remote_addr and
+    # $remote_port to the client address and client port, when using proxy
+    # protocol.
+    # First set our proxy protocol proxy as trusted.
+    set_real_ip_from 172.31.17.140;
+    # Then tell the realip_module to get the addreses from the proxy protocol
+    # header.
+    real_ip_header proxy_protocol;
+
+    server_name tickets.hamburg.ccc.de;
+
+    ssl_certificate /etc/letsencrypt/live/tickets.hamburg.ccc.de/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/tickets.hamburg.ccc.de/privkey.pem;
+    # verify chain of trust of OCSP response using Root CA and Intermediate certs
+    ssl_trusted_certificate /etc/letsencrypt/live/tickets.hamburg.ccc.de/chain.pem;
+
+    # HSTS (ngx_http_headers_module is required) (63072000 seconds)
+    add_header Strict-Transport-Security "max-age=63072000" always;
+
+    proxy_set_header Host $host;
+    proxy_set_header X-Forwarded-Host $host;
+    proxy_set_header X-Real-IP $remote_addr;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Port 443;
+    # This is https in any case.
+    proxy_set_header X-Forwarded-Proto https;
+    # Hide the X-Forwarded header.
+    proxy_hide_header X-Forwarded;
+    # Assume we are the only Reverse Proxy (well using Proxy Protocol, but that
+    # is transparent).
+    # Also provide "_hidden" for by, since it's not relevant.
+    proxy_set_header Forwarded "for=$remote_addr;proto=https;host=$host;by=_hidden";
+
+    location = / {
+        #return 302 https://wiki.hamburg.ccc.de/infrastructure:service-overview#tickets_pretix;
+        return 302 https://tickets.hamburg.ccc.de/hackertours/38c3/;
+    }
+
+    location / {
+        proxy_pass http://127.0.0.1:8345/;
+    }
+
+}