diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..0c79616
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,5 @@
+include:
+        - project: dockerized/commons
+          ref: master
+          file: gitlab-ci-template.yml
+
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..cfe18e9
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,14 @@
+FROM registry.hottis.de/dockerized/base-build-env:1.5.1-bullseye
+ 
+LABEL Maintainer="Wolfgang Hottgenroth <wolfgang.hottgenroth@icloud.com>"
+
+RUN \
+    apt update -y && \
+    apt upgrade -y && \
+    curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > /etc/apt/trusted.gpg.d/microsoft.asc.gpg && \
+    curl https://packages.microsoft.com/config/debian/11/prod.list > /etc/apt/sources.list.d/microsoft-prod.list && \
+    chown root:root /etc/apt/trusted.gpg.d/microsoft.asc.gpg && \
+    chown root:root /etc/apt/sources.list.d/microsoft-prod.list && \
+    apt update -y && \
+    apt install -y dotnet-sdk-5.0
+