add support for postgresql 11 (#28)

Signed-off-by: Mehedi Hasan <[email protected]>

Author: heheh13

scripts/restore.sh

@@ -11,44 +11,53 @@ if [[ "${WALG_BASE_BACKUP_NAME:-0}" != "0" ]]; then
     wal-g backup-fetch $PGDATA $WALG_BASE_BACKUP_NAME
 fi
 
-## ****************** Recovery config 11 **************************
-#touch /tmp/recovery.conf
-#echo "restore_command = 'wal-g wal-fetch %f %p'" >>/tmp/recovery.conf
-#echo "standby_mode = on" >>/tmp/recovery.conf
-#echo "trigger_file = '/run_scripts/tmp/pg-failover-trigger'" >>/tmp/recovery.conf # [ name whose presence ends recovery]
-##echo "recovery_target_timeline = 'latest'" >>/tmp/recovery.conf
-##echo "recovery_target = 'immediate'" >>/tmp/recovery.conf
-#echo "recovery_target_action = 'promote'" >>/tmp/recovery.conf
-#mv /tmp/recovery.conf "$PGDATA/recovery.conf"
-#
-## setup postgresql.conf
-#touch /tmp/postgresql.conf
-#echo "wal_level = replica" >>/tmp/postgresql.conf
-#echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
-#
-#echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
-#
-#echo "wal_log_hints = on" >>/tmp/postgresql.conf
-
-# ****************** Recovery config 12, 13, 14 **************************
-touch $PGDATA/recovery.signal
-
-# setup postgresql.conf
-touch /tmp/postgresql.conf
-echo "restore_command = 'wal-g wal-fetch %f %p'" >>/tmp/postgresql.conf
-#echo "recovery_target_timeline = 'latest'" >>/tmp/postgresql.conf
-if [[ "${PITR_TIME:-0}" != "latest" ]]; then
-    echo "recovery_target_time = '$PITR_TIME'" >>/tmp/postgresql.conf
+# check postgresql veriosn
+
+if [[ "$PG_MAJOR" == "11" ]]; then
+
+    # ****************** Recovery config 11 **************************
+    touch /tmp/recovery.conf
+    echo "restore_command = 'wal-g wal-fetch %f %p'" >>/tmp/recovery.conf
+    echo "standby_mode = on" >>/tmp/recovery.conf
+    echo "trigger_file = '/run_scripts/tmp/pg-failover-trigger'" >>/tmp/recovery.conf # [ name whose presence ends recovery]
+    if [[ "${PITR_TIME:-0}" != "latest" ]]; then
+        echo "recovery_target_time = '$PITR_TIME'" >>/tmp/recovery.conf
+    else
+        echo "recovery_target_timeline = 'latest'" >>/tmp/recovery.conf
+    fi
+    echo "recovery_target_action = 'promote'" >>/tmp/recovery.conf
+    mv /tmp/recovery.conf "$PGDATA/recovery.conf"
+
+    # setup postgresql.conf
+    touch /tmp/postgresql.conf
+    echo "wal_level = replica" >>/tmp/postgresql.conf
+    echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
+
+    echo "wal_keep_segments = 64" >>/tmp/postgresql.conf
+
+    echo "wal_log_hints = on" >>/tmp/postgresql.conf
 else
-    echo "recovery_target_timeline = 'latest'" >>/tmp/postgresql.conf
-fi
-echo "recovery_target_action = 'promote'" >>/tmp/postgresql.conf
-echo "wal_level = replica" >>/tmp/postgresql.conf
-echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
+    # ****************** Recovery config 12, 13, 14 **************************
+    touch $PGDATA/recovery.signal
+
+    # setup postgresql.conf
+    touch /tmp/postgresql.conf
+    echo "restore_command = 'wal-g wal-fetch %f %p'" >>/tmp/postgresql.conf
+    #echo "recovery_target_timeline = 'latest'" >>/tmp/postgresql.conf
+    if [[ "${PITR_TIME:-0}" != "latest" ]]; then
+        echo "recovery_target_time = '$PITR_TIME'" >>/tmp/postgresql.conf
+    else
+        echo "recovery_target_timeline = 'latest'" >>/tmp/postgresql.conf
+    fi
+    echo "recovery_target_action = 'promote'" >>/tmp/postgresql.conf
+    echo "wal_level = replica" >>/tmp/postgresql.conf
+    echo "max_wal_senders = 90" >>/tmp/postgresql.conf # default is 10.  value must be less than max_connections minus superuser_reserved_connections. ref: https://www.postgresql.org/docs/11/runtime-config-replication.html#GUC-MAX-WAL-SENDERS
 
-echo "wal_keep_size = 64" >>/tmp/postgresql.conf
-echo "hot_standby = on" >>/tmp/postgresql.conf
-echo "wal_log_hints = on" >>/tmp/postgresql.conf
+    echo "wal_keep_size = 64" >>/tmp/postgresql.conf
+    echo "hot_standby = on" >>/tmp/postgresql.conf
+    echo "wal_log_hints = on" >>/tmp/postgresql.conf
+
+fi
 
 # ****************** Recovery config 12 **************************
 # we are not doing any archiving by default but it's better to have this config in our postgresql.conf file in case of customization.