[mod] update wsdd - untested

wsdd/README.md

@@ -1,4 +1,32 @@
-🐋 Web Service Discovery host daemon (wsdd)
+# wsdd-docker
+Docker image for wsdd.py. 
 
-https://github.com/guillaumedsde/docker-wsdd
+wsdd implements a Web Service Discovery host daemon. This enables (Samba) hosts, like your local NAS device or Linux server, to be found by Web Service Discovery Clients like Windows.
 
+## Supported environment variables
+`HOSTNAME`: Samba Netbios name to report.
+
+`WORKGROUP`: Workgroup name
+
+`DOMAIN`: Report being a member of an AD DOMAIN. Disables `WORKGROUP` if set.
+
+Alternatively, you can pass all desired wsdd arguments in the environment variable `WSDD_ARGS`. In this case, the arguments are passed as-is and all other environment variables are ignored.
+
+## Running container
+### From command line
+```
+docker run --net=host -e HOSTNAME=$(hostname) jonasped/wsdd
+```
+
+It is important that the container is run with the argument --net=host and that the environment variabel HOSTNAME is set to the same value as your Samba netbios name. Samba netbios name defaults to the hostname. 
+
+### From docker compose
+A docker-compose.yml file could look like the one below. 
+```
+        wsdd:
+                image: "jonasped/wsdd"
+                environment:
+                        - HOSTNAME=NETBIOS_NAME
+                restart: unless-stopped
+                network_mode: "host"
+```