| #!/bin/sh |
| |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| # Configure a postgresql hot standby server |
| here=`echo "import os; print os.path.realpath('$0')" | python`; here=`dirname $here` |
| mkdir -p $1 |
| root=`echo "import os; print os.path.realpath('$1')" | python` |
| |
| # Server address |
| addr=$2 |
| if [ "$addr" = "" ]; then |
| host="localhost" |
| listen="*" |
| port="5432" |
| else |
| host=`$here/../../modules/http/httpd-addr ip $addr` |
| if [ "$host" = "" ]; then |
| host="localhost" |
| listen="*" |
| else |
| listen=$host |
| fi |
| port=`$here/../../modules/http/httpd-addr port $addr` |
| fi |
| bport=`expr $port + 1000` |
| |
| # Master server address |
| if [ "$3" = "" ]; then |
| mhost="localhost" |
| mport="5432" |
| mhttpport="80" |
| else |
| mhost="$3" |
| mport="$4" |
| mhttpport="$5" |
| fi |
| |
| pgsql_prefix=`cat $here/pgsql.prefix` |
| pgbouncer_prefix=`cat $here/pgbouncer.prefix` |
| |
| user=`id -un` |
| |
| mkdir -p $root/sqldb/data |
| chmod 700 $root/sqldb/data |
| mkdir -p $root/sqldb/archive |
| mkdir -p $root/sqldb/backup |
| |
| if [ -f "$root/sqldb/log.conf" ]; then |
| pgsql_log=`cat $root/sqldb/log.conf` |
| else |
| mkdir -p $root/logs |
| pgsql_log="cat >>$root/logs/postgresql" |
| fi |
| mkdir -p $root/sqldb |
| mkdir -p $root/sqldb/tmp |
| echo $pgsql_log >$root/sqldb/logger |
| |
| # Initialize from a backup of the master |
| if [ ! -f $root/sqldb/data/postgresql.conf ]; then |
| uname=`uname -s` |
| if [ $uname = "Darwin" ]; then |
| tar=gnutar |
| else |
| tar=tar |
| fi |
| (curl -L -# http://$mhost:$mhttpport/pgsql-restore | $tar -C $root/sqldb -xz) 2>&1 | grep -v "100.0%" | sh $root/sqldb/logger |
| mkdir -p $root/sqldb/data/pg_xlog/archive_status |
| chmod 700 $root/sqldb/data/pg_xlog/archive_status |
| fi |
| |
| # Generate server configuration |
| cp $root/sqldb/data/postgresql-init.conf $root/sqldb/data/postgresql.conf |
| cat >>$root/sqldb/data/postgresql.conf <<EOF |
| |
| # Generated by: pgsql-standby-conf $* |
| |
| # Setup logging |
| log_min_messages = NOTICE |
| log_min_error_statement = NOTICE |
| log_min_duration_statement = -1 |
| log_checkpoints = on |
| log_connections = off |
| log_disconnections = off |
| log_duration = off |
| log_lock_waits = on |
| log_statement = none |
| |
| # Listen |
| listen_addresses = '$listen' |
| port = $port |
| unix_socket_directory = '$root/sqldb/tmp' |
| |
| # Setup archival |
| archive_mode = on |
| archive_command = '$here/pgsql-archive $root $host $bport %p %f' |
| |
| # Setup hot standby with streaming replication |
| wal_level = hot_standby |
| max_wal_senders = 5 |
| wal_keep_segments = 32 |
| |
| # Enable hot standby |
| hot_standby = on |
| |
| EOF |
| |
| # Generate recovery configuration |
| cat >$root/sqldb/data/recovery.conf << EOF |
| # Generated by: pgsql-standby-conf $* |
| |
| # Start in standby mode |
| standby_mode = 'on' |
| primary_conninfo = 'host=$mhost port=$mport user=standby application_name=$host:$port' |
| |
| # Failover |
| trigger_file = '$root/sqldb/failover' |
| |
| restore_command = 'curl -L -# http://$mhost:$mhttpport/pgsql-archive/%f -o "%p" 2>&1 | grep -v "100.0%"' |
| |
| EOF |
| |
| # Generate database restore script |
| mkdir -p $root/sqldb/scripts |
| cat >$root/sqldb/scripts/restore <<EOF |
| #!/bin/sh |
| $here/pgsql-restore $root |
| EOF |
| chmod 700 $root/sqldb/scripts/restore |
| |
| # Configure HTTPD to serve backup and archive files |
| if [ -f "$root/conf/httpd.conf" ]; then |
| cat >>$root/conf/httpd.conf <<EOF |
| # Generated by: pgsql-standby-conf $* |
| |
| # Serve PostgreSQL backup and WAL archive files |
| ScriptAlias /pgsql-restore "$root/sqldb/scripts/restore" |
| Alias /pgsql-archive "$root/sqldb/archive" |
| |
| EOF |
| |
| fi |
| |
| # Configure PgBouncer |
| mkdir -p $root/logs |
| id=`id -un` |
| cat >$root/sqldb/data/pgbouncer.conf <<EOF |
| |
| [databases] |
| db = host=$host port=$port dbname=db user=bouncer |
| |
| [pgbouncer] |
| listen_addr = $listen |
| listen_port = $bport |
| unix_socket_dir = |
| auth_type = trust |
| auth_file=$root/sqldb/data/pgbouncer-auth.conf |
| logfile = $root/logs/pgbouncer |
| pidfile = $root/logs/pgbouncer.pid |
| max_client_conn = 1000 |
| pool_mode = transaction |
| server_reset_query = |
| default_pool_size = 50 |
| min_pool_size = 5 |
| reserve_pool_size = 5 |
| log_connections = 0 |
| log_disconnections = 0 |
| stats_period = 3600 |
| admin_users = $id |
| |
| EOF |
| |
| cat >$root/sqldb/data/pgbouncer-auth.conf <<EOF |
| "$id" "password" |
| |
| EOF |
| |