Merge pull request 'Add Baikal container' (#9) from baikal into main

Reviewed-on: #9

baikal/.env-example

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+BAIKAL_VERSION=0.10.1-nginx
+BAIKAL_DOMAIN=baikal.example.com

baikal/README.md

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+# Baikal Docker Setup with Traefik
+
+This guide provides instructions for deploying Baikal using Docker and Traefik as a reverse proxy. The setup includes securing the Baikal instance with HTTPS and configuring a trusted proxy.
+
+## Prerequisites
+- Docker and Docker Compose installed on your system
+- Traefik configured as your reverse proxy
+- A domain name pointing to your Baikal instance
+
+## Environment Variables
+Before deploying the container, create a `.env` file from the provided `.env-example` file and adjust the values as needed.
+
+```sh
+cp .env-example .env
+nano .env
+```
+
+## Starting the Container
+Once the `.env` file is configured, start the Baikal container using:
+```sh
+docker-compose up -d
+```
+
+## Configuring the Reverse Proxy
+To enable proper proxy support in Baikal, update `data/config/configuration.yaml` with the following settings:
+
+
+## Accessing Baikal
+Once everything is set up, restart Baikal and it should be accessible via the configured domain:
+```
+https://baikal.example.com
+```
+
+If there are any issues, check the container logs with:
+```sh
+docker logs -f baikal
+```

baikal/docker-compose.yml

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+  baikal:
+    image: ckulka/baikal:${BAIKAL_VERSION:-0.10.1-nginx}
+    container_name: baikal
+    restart: always
+    networks:
+      - traefik
+    volumes:
+      - ./data/config:/var/www/baikal/config
+      - ./data/baikal-data:/var/www/baikal/Specific
+    labels:
+      - "traefik.enable=true"
+      - "traefik.docker.network=traefik"
+      - "traefik.http.routers.baikal.entrypoints=http"
+      - "traefik.http.routers.baikal.rule=Host(`${BAIKAL_DOMAIN:?error}`)"
+      - "traefik.http.middlewares.baikal-https-redirect.redirectscheme.scheme=https"
+      - "traefik.http.routers.baikal.middlewares=caldav-https-redirect"
+      - "traefik.http.routers.baikal-secure.entrypoints=https"
+      - "traefik.http.routers.baikal-secure.rule=Host(`${BAIKAL_DOMAIN:?error}`)"
+      - "traefik.http.routers.baikal-secure.tls=true"
+      - "traefik.http.routers.baikal-secure.service=baikal"
+      - "traefik.http.services.baikal.loadbalancer.server.port=80"
+
+networks:
+  traefik:
+    external: true