OTB-Continuous-Integration-platform.md

@@ -87,6 +87,20 @@ project page. In the left sidebar, go to `Settings -> CI/CD -> Variables`. Then
 add a new variable with the token name and token value. For security reasons,
 it is advised to mask these variables.
 
+## Q: Can I get Docker build environments?
+
+Yes, for Linux builds, we use Docker images to compile and test OTB. They are stored in a 
+[registry](https://gitlab.orfeo-toolbox.org/orfeotoolbox/otb-build-env/container_registry).
+
+You can find images for Ubuntu 18.04, CentOS 6.6, and debian unstable. There is also a Docker image `otb-ubuntu-native-develop` with the latest OTB build (from `develop` branch).
+
+If you want to get one of these images, login to the registry with your Gitlab account and pull the image:
+
+```
+  docker login registry.orfeo-toolbox.org
+  docker pull registry.orfeo-toolbox.org/orfeotoolbox/otb-build-env/...
+```
+
 ## Q: What about baseline files?
 
 They are now stored in the main OTB repository, under