Setting custom LANG value for database during creation about alpine-postgres HOT 2 OPEN

FROM yobasystems/alpine-postgres:latest

RUN apk --no-cache add \
    tzdata \
    musl-locales \
    musl-locales-lang
RUN cp /usr/share/zoneinfo/Europe/Madrid /etc/localtime
RUN rm -r /usr/share/zoneinfo/Africa && \
    rm -r /usr/share/zoneinfo/Antarctica && \
    rm -r /usr/share/zoneinfo/Arctic && \
    rm -r /usr/share/zoneinfo/Asia && \
    rm -r /usr/share/zoneinfo/Atlantic && \
    rm -r /usr/share/zoneinfo/Australia && \
    rm -r /usr/share/zoneinfo/America  && \
    rm -r /usr/share/zoneinfo/Indian && \
    rm -r /usr/share/zoneinfo/Mexico && \
    rm -r /usr/share/zoneinfo/Pacific && \
    rm -r /usr/share/zoneinfo/Chile && \
    rm -r /usr/share/zoneinfo/Canada
RUN echo "Europe/Madrid" >  /etc/timezone
ENV TZ Europe/Madrid
ENV LANG es_ES.UTF-8
ENV LANGUAGE es_ES.UTF-8
ENV LC_ALL es_ES.UTF-8

ENV MUSL_LOCPATH="/usr/share/i18n/locales/musl"

docker build -t postgres-spanish .

docker run --name postgres -e POSTGRES_PASSWORD=password -p 5432:5432 -d postgres-spanish

docker exec -it postgres psql -U postgres -l 

   Name    |  Owner   | Encoding | Locale Provider |   Collate   |    Ctype    | ICU Locale | ICU Rules |   Access privileges
-----------+----------+----------+-----------------+-------------+-------------+------------+-----------+-----------------------
 postgres  | postgres | UTF8     | libc            | es_ES.UTF-8 | es_ES.UTF-8 |            |           |
 template0 | postgres | UTF8     | libc            | es_ES.UTF-8 | es_ES.UTF-8 |            |           | =c/postgres          +
           |          |          |                 |             |             |            |           | postgres=CTc/postgres
 template1 | postgres | UTF8     | libc            | es_ES.UTF-8 | es_ES.UTF-8 |            |           | =c/postgres          +
           |          |          |                 |             |             |            |           | postgres=CTc/postgres