feat: compress db dumps

pg_backup.sh

@@ -6,7 +6,7 @@ BACKUP_FILE='/var/lib/postgresql/data/backup.sql'
 
 function backup {
   export PGPASSWORD=$(cat $POSTGRES_PASSWORD_FILE)
-  pg_dump -U ${POSTGRES_USER} ${POSTGRES_DB} > $BACKUP_FILE
+  pg_dump -U ${POSTGRES_USER} ${POSTGRES_DB} | gzip > $BACKUP_FILE
 }
 
 function restore {
@@ -25,7 +25,7 @@ function restore {
     # Recreate Database
     psql -U ${POSTGRES_USER} -d postgres -c "DROP DATABASE ${POSTGRES_DB} WITH (FORCE);" 
     createdb -U ${POSTGRES_USER} ${POSTGRES_DB}
-    psql -U ${POSTGRES_USER} -d ${POSTGRES_DB} -1 -f $BACKUP_FILE
+    gunzip -c $BACKUP_FILE | psql -U ${POSTGRES_USER} -d ${POSTGRES_DB} -1 -f -
 
     trap - EXIT INT TERM
     restore_config