Removing non-root user

Dockerfile

@@ -4,9 +4,6 @@ LABEL org.opencontainers.image.authors="AnHeuermann"
 
 ENV SHELL /bin/bash
 
-# Non-root user
-ARG USERNAME=openmodelica-user
-
 # Ensure DEBIAN_FRONTEND is only set during build
 ARG DEBIAN_FRONTEND=noninteractive
 
@@ -81,9 +78,3 @@ RUN rm -rf /var/lib/apt/lists/* \
   && apt-get clean \
   && rm -f control requirements.txt *.deb \
   && rm /openmodelica-build-deps_1.0_amd64.buildinfo /openmodelica-build-deps_1.0_amd64.changes
-
-# Create non-root user
-RUN useradd -m $USERNAME
-
-ENV USER=$USERNAME
-USER $USERNAME

README.md

@@ -36,24 +36,33 @@ publish the Docker image to [https://hub.docker.com/repository/docker/anheuerman
 ## Build
 
 ```bash
-export TAG=v1.22.0
+export TAG=v1.22.1
 docker build --pull --no-cache --tag build-deps:$TAG .
 ```
 
+or
+
+```bash
+export TAG=v1.22.1
+docker build --pull --no-cache --squash --tag build-deps:$TAG .
+```
+
+to reduce image size.
+
 ## Upload
 
 The [publish.yml](./.github/workflows/publish.yml) workflow will build and upload the
 Docker image to [https://hub.docker.com/repository/docker/anheuermann/openmodelica-build-deps](anheuermann/openmodelica-build-deps)
 for each release.
 
-To do it manually run:
+To upload to docker.openmodelica.org (you'll need write access) run:
 
 ```bash
-export REGISTRY=anheuermann
-export TAG=v1.22.0
+export REGISTRY=docker.openmodelica.org
+export TAG=v1.22.1
 docker login
-docker image tag build-deps:$TAG $REGISTRY/openmodelica-build-deps:$TAG
-docker push $REGISTRY/openmodelica-build-deps:$TAG
+docker image tag build-deps:$TAG $REGISTRY/build-deps:$TAG
+docker push $REGISTRY/build-deps:$TAG
 ```
 
 ## License