listen_addresses = '{{ postgres_listen_addresses | default("*") }}' port = {{ postgres_port | default(5432) }} max_connections = {{ postgres_max_connections | default(100) }} shared_buffers = {{ postgres_shared_buffers | default("128MB") }} effective_cache_size = {{ postgres_effective_cache_size | default("4GB") }} maintenance_work_mem = {{ postgres_maintenance_work_mem | default("64MB") }} checkpoint_completion_target = {{ postgres_checkpoint_completion_target | default(0.7) }} wal_buffers = {{ postgres_wal_buffers | default("16MB") }} default_statistics_target = {{ postgres_default_statistics_target | default(100) }}