feat: merge user vars into a single config file

.gitignore

@@ -1,5 +1,2 @@
 .venv
 **/__pycache__
-
-apikey.yml
-domains.json

README.md

@@ -8,41 +8,35 @@ Python libraries:
 - [requests](https://pypi.org/project/requests/)
 - [pyyaml](https://pypi.org/project/PyYAML/)
 
-### Initial setup
+### Configuration
 
-Install the [dependencies](#dependencies), preferrably using your system's package manager.
+Configuration is declared inside the file `config.yml`.
+Once modified, this file **must be kept secret**, else anyone visiting your domains runs the risk of being DNS-poisoned.
 
-Next, you will need your Ionos API keypair.
-Clone the repo and edit the file `apikey.yml`.
-Inside the file, paste the respective value of your Ionos API-keypair, following this format:
+First, you will need to set your Ionos API keypair in the config file.
+Paste the respective values of your Ionos API-keypair into the file
 
 ```yaml
----
-
 apikey:
   prefix: <your api key prefix>
   secret: <your api key secret>
-
-...
 ```
 
-This file **must be kept secret**.
+Next, add every domain you wish to send an update for to the `domains` list.
+The script will set a global DNS record for each listed domain and have it point to the local host's public IP address.
+The `domains` list should have the following format:
 
-### Adding target domains
-
-Add every domain you want to send an update for to the file `domains.json`.
-The file should list each domain whose global DNS record should point to the local host's public IP.
-The file must have the following format:
-
-```json
-{
-  "domains": [
-    "example.com",
-    "subdomain1.example.com",
-    "subdomain2.example.com",
-  ],
-  "description": "My dynamic DNS."
-}
+```yaml
+domains:
+  - example.com
+  - subdomain1.example.com
+  - subdomain2.example.com
 ```
 
-The description can have any string as a value, but it must be present.
+You may optionally set a descriptive string which is sent along with the update:
+```yaml
+description: "Dynamic DNS update."
+```
+
+As of right now, I am actually not sure what the description is needed for, but the API requires it.
+The value displayed above is used by default, if you don't override it inside `config.yml`.

apikey.yml

@@ -1,7 +0,0 @@
----
-
-apikey:
-  prefix: <your api key prefix>
-  secret: <your api key secret>
-
-...

config.yml

@@ -0,0 +1,14 @@
+---
+
+apikey:
+  prefix: <your api key prefix>
+  secret: <your api key secret>
+
+domains:
+  - example.com
+  - subdomain1.example.com
+  - subdomain2.example.com
+
+description: "Dynamic DNS update."
+
+...

domains.json

@@ -1,8 +0,0 @@
-{
-  "domains": [
-    "example.com",
-    "subdomain1.example.com",
-    "subdomain2.example.com",
-  ],
-  "description": "My dynamic DNS."
-}