WIP: feat(postgres): actually use proper dump+restore procedure over psql misuse

roles/matrix-postgres/tasks/upgrade_postgres.yml

@@ -87,9 +87,10 @@
     --entrypoint=/bin/sh
     --mount type=bind,src={{ postgres_dump_dir }},dst=/out
     {{ matrix_postgres_detected_version_corresponding_docker_image }}
-    -c "pg_dumpall -h matrix-postgres
-    {{ '| gzip -c ' if postgres_dump_name.endswith('.gz') else '' }}
-    > /out/{{ postgres_dump_name }}"
+    -c "pg_dumpall -h matrix-postgres --format=directory -j 8 -f /out/postgres"
+
+#    {{ '| gzip -c ' if postgres_dump_name.endswith('.gz') else '' }}
+#    > /out/{{ postgres_dump_name }}"
 
 - name: Ensure matrix-postgres is stopped
   service:
@@ -133,11 +134,13 @@
       --entrypoint=/bin/sh
       --mount type=bind,src={{ postgres_dump_dir }},dst=/in,ro
       {{ matrix_postgres_docker_image_latest }}
-      -c "cat /in/{{ postgres_dump_name }} |
-      {{ 'gunzip |' if postgres_dump_name.endswith('.gz') else '' }}
-      grep -vE '{{ matrix_postgres_import_roles_ignore_regex }}' |
-      grep -vE '{{ matrix_postgres_import_databases_ignore_regex }}' |
-      psql -v ON_ERROR_STOP=1 -h matrix-postgres"
+      -c "pg_restore -j 10 -h matrix-postgres"
+
+#      -c "cat /in/{{ postgres_dump_name }} |
+#      {{ 'gunzip |' if postgres_dump_name.endswith('.gz') else '' }}
+#      grep -vE '{{ matrix_postgres_import_roles_ignore_regex }}' |
+#      grep -vE '{{ matrix_postgres_import_databases_ignore_regex }}' |
+#      psql -v ON_ERROR_STOP=1 -h matrix-postgres"
 
 # This is a hack.
 # See: https://ansibledaily.com/print-to-standard-output-without-escaping/