diff --git a/README.md b/README.md
index c95ffc5..537639f 100644
--- a/README.md
+++ b/README.md
@@ -1,40 +1,45 @@
 # Jenkins jobs configuration
 
 This repository manages the jenkins jobs configuration.
 
 A [jenkins jobs] applies the configuration on jenkins when a commit is done in this repository
 
 [jenkins jobs]: https://jenkins.softwareheritage.org/job/jenkins-tools/job/swh-jenkins-job-builder
 
 
 # Testing
 
 To test locally the configuration , simply run ``tox``:
 
 ```
 tox
 ```
 
 The output displays the jenkins configuration files as they will be applied on the server.
 
 # 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
 docker-compose up
 ```
 - Get the admin password in the logs
 
 Connect to localhost:8080, then within the jenkins ui:
 - 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
 ```
 tox update -- --delete-old
 ```
 - Save your build configuration
 - Trigger a build \o/
diff --git a/docker-compose.yml b/docker-compose.yml
index 3e3c34e..0de36bb 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,20 +1,23 @@
 version: '3'
 
 volumes:
   jenkins_data:
 
+
 services:
   jenkins:
     image: swh-jenkins:latest
     build:
       context: docker
       args:
         DOCKER_GROUP: 998
     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