createcluster.conf

# Default values for pg_createcluster(8)
# Occurrences of '%v' are replaced by the major version number,
# and '%c' by the cluster name. Use '%%' for a literal '%'.

# Create a "main" cluster when a new postgresql-x.y server package is installed
#create_main_cluster = true

# Default start.conf value, must be one of "auto", "manual", and "disabled".
# See pg_createcluster(8) for more documentation.
#start_conf = 'auto'

# Default data directory.
#data_directory = '/var/lib/postgresql/%v/%c'

# Default directory for transaction logs
# Unset by default, i.e. transaction logs remain in the data directory.
#waldir = '/var/lib/postgresql/wal/%v/%c/pg_wal'

# Options to pass to initdb.
#initdb_options = ''

# The following options are copied into the new cluster's postgresql.conf:

# Enable SSL by default (using the "snakeoil" certificates installed by the
# ssl-cert package, unless configured otherwise here)
ssl = on

# Show cluster name in process title
cluster_name = '%v/%c'

# Put stats_temp_directory on tmpfs
stats_temp_directory = '/var/run/postgresql/%v-%c.pg_stat_tmp'

# Add prefix to log lines
log_line_prefix = '%%m [%%p] %%q%%u@%%d '

# Add "include_dir" in postgresql.conf
add_include_dir = 'conf.d'

# Directory for additional createcluster config
include_dir '/etc/postgresql-common/createcluster.d'