fix citus installation

postgres-cloudnative-citus/Dockerfile

@@ -8,13 +8,19 @@ LABEL name="PostgreSQL Container Images" \
       description="This Docker image contains PostgreSQL and Barman Cloud based on Postgres ${PG_MAJOR}-bookworm."
 
 RUN apt-get update \
- && apt-get install -y curl \
- && curl -sSLo /etc/apt/trusted.gpg.d/ibotty-postgresql-public.asc https://ibotty.github.io/postgresql-related-packages/ibotty-postgresql-public.asc \
- && curl -sSLo /etc/apt/sources.list.d/ibotty-postgresql-public.list https://ibotty.github.io/postgresql-related-packages/ibotty-postgresql-public.list \
- && curl -sSL https://install.citusdata.com/community/deb.sh | bash \
+ && apt-get install -y curl
+
+# Fetch additional repository keys and lists
+RUN curl -sSLo /etc/apt/trusted.gpg.d/ibotty-postgresql-public.asc https://ibotty.github.io/postgresql-related-packages/ibotty-postgresql-public.asc \
+ && curl -sSLo /etc/apt/sources.list.d/ibotty-postgresql-public.list https://ibotty.github.io/postgresql-related-packages/ibotty-postgresql-public.list
+
+# Install Citus Data community edition
+RUN curl -sSL https://install.citusdata.com/community/deb.sh | bash \
  && apt-get update \
- && apt-get dist-upgrade \
- && apt-get install -y \
+ && apt-get dist-upgrade -y
+
+# Install additional dependencies and PostgreSQL extensions
+RUN apt-get install -y \
                        runit awscli zstd jq \
                        "postgresql-${PG_MAJOR}-pgaudit" \
                        "postgresql-${PG_MAJOR}-pgvector" \
@@ -30,14 +36,22 @@ RUN apt-get update \
                        "supabase-wrappers-pg${PG_MAJOR}" \
                        "pg-row-hashes-pg${PG_MAJOR}" \
                        "postgresql-${PG_MAJOR}-tds-fdw" \
-                       "duckdb-fdw-pg${PG_MAJOR}" \
- && apt-get install -y python3-pip \
+                       "duckdb-fdw-pg${PG_MAJOR}"
+
+# Install Python3 and pip, then install python-snappy package
+RUN apt-get install -y python3-pip \
  && pip install --break-system-packages python-snappy \
- && apt-get remove -y --autoremove python3-pip \
- && (cd /usr/bin && ln -s chpst /usr/bin/envdir) \
- && apt-get clean \
+ && apt-get remove -y --autoremove python3-pip
+
+# Create a symbolic link for envdir
+RUN cd /usr/bin && ln -s chpst /usr/bin/envdir
+
+# Clean up apt cache and temporary files
+RUN apt-get clean \
  && rm -rf /tmp/* /var/lib/apt/lists/*
 
 # Change the uid of postgres to 26
 RUN usermod -u 26 postgres
-USER 26
+
+# Set the user to run subsequent commands as
+USER 26