diff --git a/.env.example b/.env.example
index cf39121..1495f9d 100644
--- a/.env.example
+++ b/.env.example
@@ -1,2 +1,21 @@
 DOMAIN=localhost
 DEMO=false
+
+STATIC_ROOT=/tmp/static/
+MEDIA_ROOT=/tmp/media/
+ALLOWED_HOSTS=localhost,localhost:8000,127.0.0.1,
+DOMAIN=localhost
+DEBUG=True
+EMAIL_HOST="mail.example.org"
+EMAIL_HOST_USER="fillme_noreply"
+EMAIL_HOST_PASSWORD="fillme_passwd"
+EMAIL_PORT=587
+EMAIL_USE_TLS=True
+EMAIL_BACKEND="django.core.mail.backends.smtp.EmailBackend"
+EMAIL_FILE_PATH="/tmp/app-messages"
+ENABLE_EMAIL=false
+COMMIT=$(git log --format="%H %ad" --date=iso -n 1)
+PREDEFINED_TOKEN='5018dd65-9abd-4a62-8896-80f34ac66150'
+# TODO review these vars
+#SNAPSHOTS_DIR=/path/to/TODO
+#EVIDENCES_DIR=/path/to/TODO
diff --git a/docker-compose.yml b/docker-compose.yml
index ee59640..7d144bd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -7,6 +7,7 @@ services:
       - DEBUG=true
       - DOMAIN=${DOMAIN:-localhost}
       - DEMO=${DEMO:-n}
+      - PREDEFINED_TOKEN=${PREDEFINED_TOKEN:-}
     volumes:
       - .:/opt/devicehub-django
     ports:
diff --git a/docker/devicehub-django.entrypoint.sh b/docker/devicehub-django.entrypoint.sh
index 9361fdb..e988d4c 100644
--- a/docker/devicehub-django.entrypoint.sh
+++ b/docker/devicehub-django.entrypoint.sh
@@ -25,9 +25,10 @@ deploy() {
                 INIT_USER="${INIT_USER:-user@example.org}"
                 INIT_PASSWD="${INIT_PASSWD:-1234}"
                 ADMIN='True'
+                PREDEFINED_TOKEN="${PREDEFINED_TOKEN:-}"
                 ./manage.py add_institution "${INIT_ORG}"
                 # TODO: one error on add_user, and you don't add user anymore
-                ./manage.py add_user "${INIT_ORG}" "${INIT_USER}" "${INIT_PASSWD}" "${ADMIN}"
+                ./manage.py add_user "${INIT_ORG}" "${INIT_USER}" "${INIT_PASSWD}" "${ADMIN}" "${PREDEFINED_TOKEN}"
 
                 if [ "${DEMO:-}" ]; then
                         ./manage.py up_snapshots example/snapshots/ "${INIT_USER}"
diff --git a/user/management/commands/add_user.py b/user/management/commands/add_user.py
index 60f3dd2..6593fee 100644
--- a/user/management/commands/add_user.py
+++ b/user/management/commands/add_user.py
@@ -17,15 +17,17 @@ class Command(BaseCommand):
         parser.add_argument('email', type=str, help='email')
         parser.add_argument('password', type=str, help='password')
         parser.add_argument('is_admin', nargs='?', default=False, type=str, help='is admin')
+        parser.add_argument('predefined_token', nargs='?', default='', type=str, help='predefined token')
 
     def handle(self, *args, **kwargs):
         email = kwargs['email']
         password = kwargs['password']
         is_admin = kwargs['is_admin']
+        predefined_token = kwargs['predefined_token']
         institution = Institution.objects.get(name=kwargs['institution'])
-        self.create_user(institution, email, password, is_admin)
+        self.create_user(institution, email, password, is_admin, predefined_token)
 
-    def create_user(self, institution, email, password, is_admin):
+    def create_user(self, institution, email, password, is_admin, predefined_token):
         self.u = User.objects.create(
             institution=institution,
             email=email,
@@ -34,6 +36,10 @@ class Command(BaseCommand):
         )
         self.u.set_password(password)
         self.u.save()
-        token = uuid4()
+        if predefined_token:
+            token = predefined_token
+        else:
+            token = uuid4()
+
         Token.objects.create(token=token, owner=self.u)
         print(f"TOKEN: {token}")