feat: add optional pg_cron extension (backport #320)

adm/mfxxx.init.custom

@@ -127,6 +127,13 @@ EOF
         batch_psql "/tmp/extension.partman" "Adding pg_partman extension" || exit 1
         rm -f "/tmp/extension.partman"
     fi
+    if test "${MFBASE_POSTGRESQL_PG_CRON}" = "1"; then
+        cat >/tmp/extension.pg_cron <<EOF
+CREATE EXTENSION pg_cron;
+EOF
+        batch_psql "/tmp/extension.pg_cron" "Adding pg_cron extension" || exit 1
+        rm -f "/tmp/extension.pg_cron"
+    fi
 
 
     echo -n "- Stopping mfbase services..."

config/config.ini.custom

@@ -40,6 +40,11 @@ geohash=0
 # Change partman to 1 if you want to create the extension
 partman=0
 
+# By default extension pg_cron is not created
+# Change pg_cron to 1 if you want to create the extension
+# See pg_cron usage here : https://github.com/citusdata/pg_cron
+pg_cron=0
+
 ##################
 ##### CIRCUS #####
 ##################

config/postgresql.conf

@@ -6,4 +6,10 @@ logging_collector = off
 log_min_messages = warning
 unix_socket_directories = '{{MFMODULE_RUNTIME_HOME}}/var'
 listen_addresses = '*'
+{% if MFBASE_POSTGRESQL_PG_CRON == "1" -%}
+shared_preload_libraries = 'pg_stat_statements, pg_cron'
+cron.database_name = 'metwork'
+cron.timezone = 'GMT'
+{% else -%}
 shared_preload_libraries = 'pg_stat_statements'
+{% endif -%}