get rid of the PGDATE env variable and overriding the pg_hba.conf file

.env

@@ -17,7 +17,6 @@ POSTGRES_USER=postgres
 POSTGRES_PASSWORD=postgres
 POSTGRES_DB=postgres
 POSTGRES_HOST=db
-PGDATA=/var/lib/postgresql/data/db
 CKAN_DB_USER=ckandbuser
 CKAN_DB_PASSWORD=ckandbpassword
 CKAN_DB=ckandb

docker-compose.yml

@@ -68,7 +68,6 @@ services:
       - POSTGRES_USER
       - POSTGRES_PASSWORD
       - POSTGRES_DB
-      - PGDATA
       - CKAN_DB_USER
       - CKAN_DB_PASSWORD
       - CKAN_DB

postgresql/Dockerfile

@@ -1,7 +1,4 @@
 FROM postgres:12-alpine
 
-# Allow connections; we don't map out any ports so only linked docker containers can connect
-RUN echo "host all  all    0.0.0.0/0  md5" >> /var/lib/postgresql/data/pg_hba.conf
-
 # Include extra setup scripts (eg datastore)
 ADD docker-entrypoint-initdb.d /docker-entrypoint-initdb.d