volume is in pgbase

Dockerfile

@@ -6,7 +6,8 @@ RUN apk add --no-cache daemonize
 
 FROM sutty/monit:latest
 
-ENV PGDATA /var/lib/postgresql/11/data
+ENV PGBASE /var/lib/postgresql
+ENV PGDATA $PGBASE/11/data
 ENV LANG en_US.utf8
 ENV PGUSER sutty
 ENV PGDB sutty
@@ -21,4 +22,4 @@ COPY ./monit.conf /etc/monit.d/postgresql.conf
 RUN chmod 750 /usr/local/bin/postgresql
 
 EXPOSE 5432
-VOLUME $PGDATA
+VOLUME $PGBASE

postgresql.sh

@@ -10,7 +10,7 @@ case $1 in
     log=${PGDATA}/postgresql.log
 
     install -dm 2750 -o postgres -g postgres /run/postgresql
-    chown -R postgres:postgres /var/lib/postgresql
+    chown -R postgres:postgres ${PGBASE}
 
     if test ! -f ${PGDATA}/PG_VERSION ; then
       su - postgres -c "/usr/bin/initdb --locale ${LANG} -E UTF8 -D ${PGDATA}"