Fix Dockerfile

Dockerfile

@@ -4,17 +4,25 @@ COPY . /app
 RUN npm install && \
     npx tailwindcss -i ./src/input.css -o ./src/web/tracker/static/base.css --minify
 
-FROM python:3.10.9-alpine
+FROM python:3.10.9-slim-bullseye
 
 ENV VERSION_NUMBER 0.2.2
 ENV PROD 1
+ENV PYTHONUNBUFFERED=1
 
-RUN apk add \
+RUN apt update && \
+    apt install -y \
     bash \
     vim \
-    curl \
-    caddy
-RUN adduser -D -u 1000 timetracker
+    curl && \
+    apt install -y debian-keyring debian-archive-keyring apt-transport-https && \
+    curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg && \
+    curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | tee /etc/apt/sources.list.d/caddy-stable.list && \
+    apt update && \
+    apt install caddy && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN useradd -m --uid 1000 timetracker
 WORKDIR /home/timetracker/app
 COPY . /home/timetracker/app/
 RUN chown -R timetracker:timetracker /home/timetracker/app