diff --git a/Dockerfile b/Dockerfile
index 7febfe7..728a697 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,16 +6,17 @@ ARG POETRY_VERSION=1.3.1
 
 ENV LC_ALL=C.UTF-8
 ENV LANG=C.UTF-8
+ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update \
-    && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    build-essential \
-    curl \
-    git \
-    python3-dev \
-    python3-setuptools \
-    python3-virtualenv \
-    python3-wheel
+    && apt-get install -y --no-install-recommends \
+      build-essential \
+      curl \
+      git \
+      python3-dev \
+      python3-setuptools \
+      python3-virtualenv \
+      python3-wheel
 
 RUN curl -sSL https://install.python-poetry.org | POETRY_HOME=/root/.local POETRY_VERSION=$POETRY_VERSION python3 - \
     && /root/.local/bin/poetry config virtualenvs.in-project true
@@ -29,6 +30,10 @@ RUN /root/.local/bin/poetry install --only=main
 FROM debian:$DEBIAN_RELEASE
 LABEL maintainer="Jan Dittberner <jan@dittberner.info>"
 
+ENV LC_ALL=C.UTF-8
+ENV LANG=C.UTF-8
+ENV DEBIAN_FRONTEND=noninteractive
+
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
        ca-certificates \
@@ -47,7 +52,8 @@ ARG GVAUID=2000
 WORKDIR /srv/$GVAAPP
 
 RUN addgroup --gid $GVAGID $GVAAPP ; \
-    adduser --home /home/$GVAAPP --shell /bin/bash --uid $GVAUID --gid $GVAGID --disabled-password --gecos "User for gnuviechadmin component $GVAAPP" $GVAAPP
+    adduser --home /home/$GVAAPP --shell /bin/bash --uid $GVAUID --gid $GVAGID --disabled-password \
+            --gecos "User for gnuviechadmin component $GVAAPP" $GVAAPP
 
 COPY --chown=$GVAAPP:$GVAAPP --from=builder /srv/$GVAAPP/.venv /srv/$GVAAPP/.venv
 
diff --git a/gvaweb.sh b/gvaweb.sh
index 4b11ed8..645de81 100755
--- a/gvaweb.sh
+++ b/gvaweb.sh
@@ -2,6 +2,10 @@
 
 set -e
 
-. /srv/gvaweb/.venv/bin/activate
-cd /srv/gvaweb/gvaweb
-celery -A webtasks worker -Q web -l info
+QUEUE=web
+TASKS=${QUEUE}tasks
+APP=gvaweb
+
+. "/srv/${APP}/.venv/bin/activate"
+cd /srv/${APP}/${APP}
+celery -A "${TASKS}" worker -Q "${QUEUE}" -l info