replace all 12's by 15

Dockerfile.galaxyxpand

@@ -3,7 +3,7 @@ LABEL maintainer="Christophe Antoniewski <[email protected]>"
 ARG DEBIAN_FRONTEND=noninteractive
 
 
-# Install ``python-software-properties``, ``software-properties-common`` and PostgreSQL 12
+# Install ``python-software-properties`` and ``software-properties-common``
 #  There are some warnings (in red) that show up during the build. You can hide
 #  them by prefixing each apt-get statement with DEBIAN_FRONTEND=noninteractive
 RUN apt update && \
@@ -16,6 +16,7 @@ RUN apt update && \
     apt-utils git nano python3-pip python3-virtualenv \
     ca-certificates locales dirmngr lsb-release curl
 
+# PostgreSQL 15
 RUN apt update && \
     \
     echo "===> Allow start of services"  && \
@@ -32,7 +33,7 @@ RUN apt update && \
 RUN python3 -m pip install -U pip && python3 -m pip install ansible==3.0 && \
     python3 -m pip install -U cryptography pyyaml
 
-# Run the rest of the commands as the ``postgres`` user created by the ``postgres-12``
+# Run the rest of the commands as the ``postgres`` user created by the ``postgres-15``
 # package when it was ``apt-get installed``
 
 USER postgres
@@ -55,10 +56,10 @@ RUN    /etc/init.d/postgresql start &&\
 
 # Adjust PostgreSQL configuration so that remote connections to the
 # database are possible.
-RUN echo "host all  all    0.0.0.0/0  md5" >> /etc/postgresql/12/main/pg_hba.conf
+RUN echo "host all  all    0.0.0.0/0  md5" >> /etc/postgresql/15/main/pg_hba.conf
 
-# And add ``listen_addresses`` to ``/etc/postgresql/12/main/postgresql.conf``
-RUN echo "listen_addresses='*'" >> /etc/postgresql/12/main/postgresql.conf
+# And add ``listen_addresses`` to ``/etc/postgresql/15/main/postgresql.conf``
+RUN echo "listen_addresses='*'" >> /etc/postgresql/15/main/postgresql.conf
 
 USER root