Update README.md

README.md

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-# cf
+# Cloudflare DNS and Caddy Configuration Script
 
-Cloudflare DDNS and Caddy Configuration Manager: A Python script for automating DNS updates and Caddy reverse proxy setup. Simplifies domain management with Cloudflare API integration and dynamic Caddyfile updates.
+## 1. Installation and Setup
+
+You're right, using git clone is a better approach. Here's the revised installation section:
+
+## 1. Installation and Setup
+
+- Install Python 3.x and required libraries: `yaml`, `requests`, `loguru`, `python-dotenv`:
+```bash
+pip install pyyaml requests loguru python-dotenv
+```
+
+- Obtain Cloudflare API token from your account
+
+- Clone the repository and set up the script:
+```bash
+git clone https://sij.ai/sij/cf.git
+cd cf
+sudo ln -s "$(pwd)/cf" /usr/local/bin/cf
+sudo chmod +x cf
+```
+
+- Create `.env` file with `CLOUDFLARE_API_TOKEN=your_token_here`:
+```bash
+echo "CLOUDFLARE_API_TOKEN=your_token_here" > .env
+```
+
+- Set up `cf_domains.yaml` with your domains and zone IDs:
+```bash
+cp cf_domains.yaml-example cf_domains.yaml
+nano cf_domains.yaml
+```
+
+Edit the `cf_domains.yaml` file to include your domains, zone IDs, and DNS record IDs. The file structure should look like this:
+
+```yaml
+domain1.com:
+  '@': your_root_domain1.com_dns_record_id_here
+  _id: your_domain1.com_zone_id_here
+  sub1: your_sub1.domain1.com_dns_record_id_here
+  sub2: your_sub2.domain1.com_dns_record_id_here
+domain2.net:
+  '@': your_root_domain2.net_dns_record_id_here
+  _id: your_domain2.net_zone_id_here
+  sub1: sub1.domain2.net_dns_record_id_here
+  sub2: sub2.domain2.net_dns_record_id_here
+```
+
+Replace the example values with your actual Cloudflare zone IDs and DNS record IDs for each domain and subdomain you want to manage with this script.
+
+- Ensure Caddy is installed and `/etc/caddy/Caddyfile` is writable:
+```bash
+sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https
+curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
+curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list
+sudo apt update
+sudo apt install caddy
+sudo chown caddy:caddy /etc/caddy/Caddyfile
+sudo chmod 644 /etc/caddy/Caddyfile
+```
+
+
+## 2. Usage
+
+### 2.1 DDNS Update
+```
+cf ddns [--force]
+```
+Updates all domains with current IP. Use `--force` to update regardless of IP change.
+
+### 2.2 Adding/Updating Domain Configuration
+```
+cf <full-domain> [--ip <ip address>] --port <port>
+```
+Adds or updates domain in Cloudflare and Caddyfile. Default IP is localhost.
+
+### 2.3 Updating All Domains
+```
+cf all [--force]
+```
+Updates all domains and Caddyfile configurations.
+
+## 3. File and Environment Structure
+
+- `Caddyfile`: Caddy server configuration
+- `cf_domains.yaml`: Stores domain info and DNS record IDs
+- `.env`: Contains `CLOUDFLARE_API_TOKEN` and `CURRENT_IP`
+- `cf_script.log`: Logs script actions
+
+## 4. Key Functions and Error Handling
+
+- `ddns()`: Handles DDNS updates
+- `update_caddyfile()`: Modifies Caddy configuration
+- `update_or_create_record()`: Manages Cloudflare DNS records
+
+Common errors:
+- API authentication failures: Check API token
+- Permission issues: Run with sudo for Caddyfile changes
+- Domain not found: Ensure domain is in `cf_domains.yaml`
+
+Logs are in `cf_script.log` for troubleshooting.