# PostgreSQL Production Configuration File

# CONNECTIONS AND AUTHENTICATION
listen_addresses = '*'
max_connections = 200
password_encryption = scram-sha-256
ssl = on
ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem'
ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key'

# RESOURCE USAGE
shared_buffers = 2GB
work_mem = 8MB
maintenance_work_mem = 256MB
effective_cache_size = 8GB
max_worker_processes = 12
max_parallel_workers_per_gather = 4
max_parallel_workers = 12

# WRITE-AHEAD LOG
wal_level = replica
max_wal_size = 2GB
min_wal_size = 1GB
checkpoint_timeout = 15min
checkpoint_completion_target = 0.9
archive_mode = on
archive_command = 'test ! -f /var/lib/postgresql/archive/%f && cp %p /var/lib/postgresql/archive/%f'

# REPLICATION
max_wal_senders = 10
wal_keep_size = 1GB
hot_standby = on
hot_standby_feedback = on

# QUERY TUNING
random_page_cost = 1.1
effective_io_concurrency = 200
default_statistics_target = 500
jit = on

# LOGGING
log_destination = 'stderr'
logging_collector = on
log_directory = 'pg_log'
log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'
log_truncate_on_rotation = off
log_rotation_age = 1d
log_rotation_size = 100MB
log_min_duration_statement = 1000
log_checkpoints = on
log_connections = on
log_disconnections = on
log_duration = off
log_error_verbosity = default
log_line_prefix = '%m [%p] %q%u@%d '
log_statement = 'none'

# AUTOVACUUM
autovacuum = on
log_autovacuum_min_duration = 1000
autovacuum_max_workers = 6
autovacuum_naptime = 1min
autovacuum_vacuum_threshold = 50
autovacuum_analyze_threshold = 50
autovacuum_vacuum_scale_factor = 0.05
autovacuum_analyze_scale_factor = 0.025

# CLIENT CONNECTION DEFAULTS
datestyle = 'iso, mdy'
timezone = 'UTC'
lc_messages = 'en_US.UTF-8'
lc_monetary = 'en_US.UTF-8'
lc_numeric = 'en_US.UTF-8'
lc_time = 'en_US.UTF-8'
default_text_search_config = 'pg_catalog.english'