try main

.woodpecker.yml

@@ -1,17 +1,16 @@
 steps:
-  publish-container:
-    image: taywee/woodpecker-buildah:amd64
-    pull: true
-    environment:
-     - CONDA_CUDA_OVERRIDE=11.2
-     - NVIDIA_VISIBLE_DEVICES=all
+  build_and_release:
+    image: maltegrosse/woodpecker-buildah:0.0.12
     settings:
       registry: git.sandbox.iuk.hdm-stuttgart.de
-      repo: specht/woodpecker-test
-      cache: false
-#      tag: 0.0.1
+      repository: grosse/jupyterlab-datascience
+      #tag: 4.0.12c
+      architectures: aarch64 amd64
       context: Dockerfile
+      imagename: jupyterlab-datascience
       username:
         from_secret: docker_username
       password:
-        from_secret: docker_password
+        from_secret: docker_password
+    when: 
+      branch: main

Dockerfile

@@ -1 +1,21 @@
 FROM hello-world:linux
+ARG LAB_IMAGE=quay.io/jupyter/scipy-notebook:lab-4.0.12
+ARG NB_USER="jovyan"
+ARG NB_UID="1000"
+ARG NB_GID="100"
+FROM ${LAB_IMAGE}
+# kaniko issue https://github.com/GoogleContainerTools/kaniko/issues/1087
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+USER root
+RUN apt-get update --yes && \
+    apt-get install --yes --no-install-recommends \
+    git-lfs
+USER ${NB_UID}
+RUN echo "install custom extensions "
+RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-sandbox-theme==0.1.4
+RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-sandbox-announcement==0.1.3
+#RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-data-pool
+#RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-training
+#RUN pip install --extra-index-url https://git.sandbox.iuk.hdm-stuttgart.de/api/packages/grosse/pypi/simple jupyterlab-synthetic-data
+RUN pip install ipywebrtc==0.6.0 opencv-python-headless==4.9.0.80 voila==0.5.5
+RUN jupyter labextension disable "@jupyterlab/apputils-extension:announcements"