Add Uptime Kuma

uptime-kuma/.gitignore

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+/data/*

uptime-kuma/Caddyfile

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+status.codehal.de {
+    reverse_proxy uptime-kuma:3001
+}

uptime-kuma/docker-compose.yml

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+version: '3'
+
+services:
+  uptime-kuma:
+    container_name: uptime-kuma
+    image: louislam/uptime-kuma:1
+    restart: unless-stopped
+    volumes:
+      - ./data:/app/data
+    ports:
+      - 127.0.0.1:3001:3001
+
+  caddy:
+    container_name: caddy
+    image: caddy
+    restart: unless-stopped
+    volumes:
+      - ./Caddyfile:/etc/caddy/Caddyfile:ro
+    ports:
+      - 80:80
+      - 443:443