Merge pull request #17 from aureleoules/develop

Handle container rename

README.md

@@ -19,12 +19,12 @@ Hoster provides by default the entries `<container name>, <hostname>, <container
 
 For example, the following container would be available via DNS as `myname`, `myhostname`, `et54rfgt567` and `myserver.com`:
 
-    docker run --restart=unless-stopped -d \
+    docker run -d \
         --name myname \
         --hostname myhostname \
         --network somenetwork --network-alias "myserver.com" \
         mycontainer
 
-If you need more features like **systemd integration** and **dns forwarding** please check [resolvable](https://hub.docker.com/r/mgood/resolvable/)
+If you need more features like **systemd interation** and **dns forwarding** please check [resolvable](https://hub.docker.com/r/mgood/resolvable/)
 
 Any contribution is, of course, welcome. :)

hoster.py

@@ -55,6 +55,13 @@ def main():
                 hosts.pop(container_id)
                 update_hosts_file()
 
+        if status=="rename":
+            container_id = e["id"]
+            if container_id in hosts:
+                container = get_container_data(dockerClient, container_id)
+                hosts[container_id] = container
+                update_hosts_file()
+
 
 def get_container_data(dockerClient, container_id):
     #extract all the info with the docker api
@@ -62,6 +69,8 @@ def get_container_data(dockerClient, container_id):
     container_hostname = info["Config"]["Hostname"]
     container_name = info["Name"].strip("/")
     container_ip = info["NetworkSettings"]["IPAddress"]
+    if info["Config"]["Domainname"]:
+        container_hostname = container_hostname + "." + info["Config"]["Domainname"]
     
     result = []
 
@@ -104,7 +113,8 @@ def update_hosts_file():
             break;
 
     #remove all the trailing newlines on the line list
-    while lines[-1].strip()=="": lines.pop()
+    if lines:
+        while lines[-1].strip()=="": lines.pop()
 
     #append all the domain lines
     if len(hosts)>0: