Adds documentation to README.md

Dockerfile

@@ -1,20 +1,19 @@
-FROM php:8.2.8-cli-alpine
-
+ARG PHP_VERSION=8.2.8
 ARG VERSION=2.6.2
-ENV VERSION=${VERSION}
-
-ENV SERVER_HOST='sharedwithexpose.com'
 
-ENV SERVER_PORT=443
+FROM php:${PHP_VERSION}-cli-alpine
 
-ENV SERVERS_ENDPOINT='https://expose.dev/api/servers'
 
+ENV AUTH_TOKEN=
+ENV BASIC_AUTH=
+ENV DOMAIN=
 ENV DNS_SERVER=true
-
-ENV AUTH_TOKEN=''
-
 ENV MEMORY_LIMIT='128M'
-
+ENV SERVER=
+ENV SERVER_HOST='sharedwithexpose.com'
+ENV SERVER_PORT=443
+ENV SERVERS_ENDPOINT='https://expose.dev/api/servers'
+ENV SHARE=
 ENV SUBDOMAIN='expose'
 
 COPY config.php /root/.expose/config.php

README.md

@@ -1 +1,53 @@
-# expose-docker
+# expose-docker
+
+Exposes [beyondcode/expose](https://expose.dev/) via docker
+
+## Usage
+
+```bash
+docker run backdevs/expose <expose command>
+```
+
+For example, `docker run backdevs/expose share http://localhost`.
+
+### Docker compose
+
+```yaml
+services:
+  # Other services
+
+  expose:
+    image: backdevs/expose
+    args:
+      PHP_VERSION: 8.2.8
+      VERSION: 2.6.2
+    environment:
+      AUTH_TOKEN: 'your-expose-dot-dev-token'
+    ports:
+      - 4040:4040
+```
+
+Now you can run commans like `docker compose run expose share http://localhost`.
+
+### Arguments
+
+Argument            | Default value
+--------------------|-----------------
+PHP_VERSION         | 8.2.8
+VERSION             | 2.6.2
+
+### Environment variables
+
+Variable            | Default value
+--------------------|-----------------
+AUTH_TOKEN          | *None*
+BASIC_AUTH          | *None*
+DOMAIN              | *None*
+DNS_SERVER          | `TRUE`
+MEMORY_LIMIT        | 128M
+SERVER              | *None*
+SERVER_HOST         | sharedwithexpose.com
+SERVER_PORT         | 443
+SERVERS_ENDPOINT    | https://expose.dev/api/servers
+SHARE               | *None*
+SUBDOMAIN           | expose