Update taskserver to new domain

docker-compose.yml

@@ -186,7 +186,7 @@ services:
   taskserver:
     build: taskserver
     container_name: taskserver
-    hostname: a.guiotte.fr
+    hostname: dm.guiotte.fr
     restart: always
     environment:
       - PUID=1000

taskserver/README.md

@@ -6,11 +6,17 @@ Written with the help of
 
 ## Certs renewal
 
+*do we need to remove volumes?:*
+
+```shell
+docker volume rm docker_taskserver-certs docker_taskserver-data
+
+```
 Once a year recreate the container and copy the `client_certs` dir! On
 the client:
 
 ```shell
-scp -r florent@a.guiotte.fr:~/docker/taskserver/client_certs/* ~/.config/task/certs
+scp -r florent@dm.guiotte.fr:~/docker/taskserver/client_certs/* ~/.config/task/certs
 task config taskd.credentials -- watch/user/$(cat ~/.config/task/certs/user-uuid)
 task sync init
 ```