add log (#492)

|       env              | image_env               | default_value          |
|---------------------|----------------------|-------------|
| logging_collector   | LOGGING_COLLECTOR    | off         |
| log_directory       | LOG_DIRECTORY        | pg_log      |
| log_filename        | LOG_FILENAME         | xxx         |
| log_rotation_age    | LOG_ROTATION_AGE     | 1d          |
| log_rotation_size   | LOG_ROTATION_SIZE    | 100MB       |
| log_truncate_on_rotation | LOG_TRUNCATE_ON_ROTATION | on         |
| log_lock_waits      | LOG_LOCK_WAITS       | on          |
| log_duration        | LOG_DURATION         | on          |
| log_statement       | LOG_STATEMENT        | all         |
| log_min_duration_statement | LOG_MIN_DURATION_STATEMENT | 20        |
| log_connections     | LOG_CONNECTIONS      | on          |
| log_disconnections  | LOG_DISCONNECTS      | on          |
| log_line_prefix     | LOG_LINE_PREFIX      | xx          |
| log_timezone        | LOG_TIMEZONE         | Etc/UTC     |

scripts/env-data.sh

@@ -264,6 +264,64 @@ if [ -z "${SSL_KEY_FILE}" ]; then
 	SSL_KEY_FILE='/etc/ssl/private/ssl-cert-snakeoil.key'
 fi
 
+# log
+if [ -z "${LOGGING_COLLECTOR}" ]; then
+  LOGGING_COLLECTOR='off'
+fi
+
+if [ -z "${LOG_DIRECTORY}" ]; then
+  LOG_DIRECTORY='pg_log'
+fi
+
+if [ -z "${LOG_FILENAME}" ]; then
+  LOG_FILENAME='postgresql-%Y-%m-%d_%H%M%S.log'
+fi
+
+if [ -z "${LOG_ROTATION_AGE}" ]; then
+  LOG_ROTATION_AGE='1d'
+fi
+
+if [ -z "${LOG_ROTATION_SIZE}" ]; then
+  LOG_ROTATION_SIZE='100MB'
+fi
+
+if [ -z "${LOG_TRUNCATE_ON_ROTATION}" ]; then
+  LOG_TRUNCATE_ON_ROTATION='on'
+fi
+
+if [ -z "${LOG_LOCK_WAITS}" ]; then
+  LOG_LOCK_WAITS='on'
+fi
+
+if [ -z "${LOG_DURATION}" ]; then
+  LOG_DURATION='on'
+fi
+
+if [ -z "${LOG_STATEMENT}" ]; then
+  LOG_STATEMENT='all'
+fi
+
+if [ -z "${LOG_MIN_DURATION_STATEMENT}" ]; then
+  LOG_MIN_DURATION_STATEMENT='20'
+fi
+
+if [ -z "${LOG_CONNECTIONS}" ]; then
+  LOG_CONNECTIONS='on'
+fi
+
+if [ -z "${LOG_DISCONNECTS}" ]; then
+  LOG_DISCONNECTS='on'
+fi
+
+if [ -z "${LOG_LINE_PREFIX}" ]; then
+  LOG_LINE_PREFIX='%m [%p]: [%l-1] %u@%d '
+fi
+
+if [ -z "${LOG_TIMEZONE}" ]; then
+  LOG_TIMEZONE='Etc/UTC'
+fi
+
+
 # SSL mode
 function postgres_ssl_setup() {
   if [ -z "${PGSSLMODE}" ]; then

scripts/setup-conf.sh

@@ -38,6 +38,23 @@ cron.database_name = '${SINGLE_DB}'
 password_encryption= '${PASSWORD_AUTHENTICATION}'
 timezone='${TIMEZONE}'
 cron.use_background_workers = on
+
+
+logging_collector='${LOGGING_COLLECTOR}'
+log_directory='${LOG_DIRECTORY}'
+log_filename='${LOG_FILENAME}'
+log_rotation_age='${LOG_ROTATION_AGE}'
+log_rotation_size='${LOG_ROTATION_SIZE}'
+log_truncate_on_rotation='${LOG_TRUNCATE_ON_ROTATION}'
+log_lock_waits='${LOG_LOCK_WAITS}'
+log_duration='${LOG_DURATION}'
+log_statement='${LOG_STATEMENT}'
+log_min_duration_statement='${LOG_MIN_DURATION_STATEMENT}'
+log_connections='${LOG_CONNECTIONS}'
+log_disconnections='${LOG_DISCONNECTS}'
+log_line_prefix='${LOG_LINE_PREFIX}'
+log_timezone='${LOG_TIMEZONE}'
+
 EOF
 
 echo "include 'postgis.conf'" >> "${CONF}"