diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -19,6 +19,11 @@
 
 # Run on docker
 
+Jenkins jobs configuration can be tested on a local temporary Jenkins instance
+executed in a docker container. The local ``swh-jenkins-jobs`` repository will be
+mounted as a volume and cloned by Jenkins so do not forget to commit the changes
+you want to test.
+
 - Launch jenkins
 ```
 docker-compose build
@@ -30,7 +35,7 @@
 - Change the `admin` password to `admin123`
 - Create a jenkins folder `jenkins-tools`
 - Create a new `free-style` job named `job-builder` inside the `jenkins-tools` targeting
-  this git repository `https://forge.softwareheritage.org/source/swh-jenkins-jobs.git`
+  this git repository `file:///opt/swh-jenkins-jobs`
   - Configure the branch (e.g. `*/master`)
   - Add a `build` step `Execute shell` with this content
 ```
diff --git a/docker-compose.yml b/docker-compose.yml
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -3,6 +3,7 @@
 volumes:
   jenkins_data:
 
+
 services:
   jenkins:
     image: swh-jenkins:latest
@@ -13,8 +14,10 @@
     volumes:
       - jenkins_data:/var/jenkins_home
       - /var/run/docker.sock:/var/run/docker.sock
+      - .:/opt/swh-jenkins-jobs
     environment:
       - PLUGINS_FORCE_UPGRADE=true
+      - JAVA_OPTS=-Dhudson.plugins.git.GitSCM.ALLOW_LOCAL_CHECKOUT=true
     ports:
       - 8080:8080
     entrypoint: /docker/entrypoint.sh