ROX-19980 fix

Author: ludydoo

image/db/rhel/Dockerfile

@@ -36,7 +36,7 @@ RUN curl -sSLf https://download.postgresql.org/pub/repos/yum/RPM-GPG-KEY-PGDG-${
     groupadd -g 70 postgres && \
     adduser postgres -u 70 -g 70 -d /var/lib/postgresql -s /bin/sh && \
     microdnf install \
-        ca-certificates libicu systemd-sysv glibc-locale-source glibc-langpack-en \
+        ca-certificates tar libicu systemd-sysv glibc-locale-source glibc-langpack-en \
         postgresql12-server && \
     # The removal of /usr/share/zoneinfo from UBI minimal images is intentional.
     # After building the image, the image is reduced in size as much as possible,
@@ -65,7 +65,7 @@ COPY scripts/start-db.sh /usr/local/bin/
 RUN /usr/local/bin/start-db.sh
 USER root
 RUN rm -rf /usr/local/bin/start-db.sh && \
-    rm -rf /docker-entrypoint-initdb.d/definitions.sql
+    rm -rf /docker-entrypoint-initdb.d/*
 USER 70:70
 ENV DATABASE_ALREADY_EXISTS=true
 ENTRYPOINT ["custom-entrypoint.sh"]

image/db/rhel/scripts/custom-entrypoint.sh

@@ -6,6 +6,12 @@
 
 set -e
 
+echo "Creating /var/lib/postgresql/data/pgdata..."
+mkdir -p /var/lib/postgresql/data/pgdata
+
+echo "Uncompressing into /var/lib/pgsql/data/pgdata..."
+tar -xzf /tmp/data.tar.gz -C /var/lib/postgresql/data/pgdata
+
 echo "Starting database..."
 POSTGRES_PASSWORD=postgres /usr/local/bin/docker-entrypoint.sh postgres -c config_file=/etc/postgresql.conf &
 
@@ -25,7 +31,7 @@ if [ "$POSTGRES_USER" != "postgres" ]; then
 fi
 
 echo "Stopping database..."
-pg_ctl -D /var/lib/postgresql/data/pgdata -w stop
+pg_ctl -w stop
 
 # Now we can start the database for real. But we will
 # forward any arguments to the actual entrypoint script

image/db/rhel/scripts/start-db.sh

@@ -5,14 +5,24 @@ set -eu
 echo "Creating postgres.conf for initialization..."
 cat <<EOF > /tmp/postgres.conf
 listen_addresses = '*'
+max_wal_size = 1GB
 EOF
 
+echo "Creating temporary PGDATA directory..."
+mkdir -p /tmp/data
+
 echo "Starting database..."
-POSTGRES_PASSWORD=postgres /usr/local/bin/docker-entrypoint.sh postgres -c config_file=/tmp/postgres.conf
+PGDATA=/tmp/data POSTGRES_PASSWORD=postgres /usr/local/bin/docker-entrypoint.sh postgres -c config_file=/tmp/postgres.conf
 
 echo "Waiting for database to stop..."
-while [ -f /var/lib/postgresql/data/pgdata/postmaster.pid ]; do
+while [ -f /tmp/data/pgdata/postmaster.pid ]; do
   sleep 1
 done
 
-rm /tmp/postgres.conf
+rm /tmp/postgres.conf
+
+echo "Compressing database data folder..."
+tar -czf /tmp/data.tar.gz -C /tmp/data .
+
+echo "Removing temporary PGDATA directory..."
+rm -rf /tmp/data