add default env vars and documentation

Author: kkalev

Dockerfile

@@ -15,5 +15,11 @@ COPY code/ /var/www/html/
 # Allow for a redirect folder
 # The ${REDIR_FOLDER} will be redirected to DocumentRoot
 ENV REDIR_FOLDER=tester
+ENV TZ=Europe/Athens
+ENV CAS_SERVER=localhost
+ENV CAS_CONTEXT=/cas
+ENV CAS_PORT=8443
+ENV CAS_VERSION=3.0
+ENV CAS_SERVICE_NAME=https://localhost
 
 EXPOSE 80 443

README.md

@@ -20,4 +20,11 @@ Docker Hub image: [gunet/phpcas-tester](https://hub.docker.com/repository/docker
     * test/test
     * auser/auser
 * `variables.env`: Environment variables file By default, it is designed to assist the `docker-compose.test.yaml` stack
-  - `DEBUG` variable sets debugging (mainly phpCAS debug)
+  - `DEBUG` variable sets debugging (mainly phpCAS debug)
+
+# Environment Variables
+* `CAS_SERVER`: The hostname of the CAS server (default `localhost`)
+* `CAS_CONTEXT`: The CAS context. In the case of `gunet/simple-cas` it will be `/cas`, while in the case of a regulat CAS it will be `./` (default `/cas`)
+* `CAS_PORT`: The port where the CAS server is listening to (default `8443`)
+* `CAS_VERSION`: The CAS protocol version (default `3.0`)
+* `CAS_SERVICE_NAME`: The service name to use for our service (default `https://localhost`)