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#!/bin/bash
# Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this code 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.
# create a secondary database
set -x
die()
{
echo $0: "$@" 1>&2
echo $0: "$@"
umask 022
echo $0: "$@" >> /tmp/pgaas-failures
exit 1
}
[ -n "$MASTER" ] || die "MASTER is not set"
[ -n "$PGDIR" ] || die "PGDIR is not set"
[ -n "$DBROOT" ] || die "DBROOT is not set"
[ -n "$CFGDIR" ] || die "CFGDIR is not set"
cd $CFGDIR/main || die "Cannot cd $CFGDIR/main"
PATH=${INSTALL_ROOT}/opt/app/pgaas/bin:$CFGDIR/etc:$PGDIR/bin:$PATH
bwget()
{
${INSTALL_ROOT}/opt/app/pgaas/bin/pgwget --progress=dot:giga "$@"
}
umask 077
TMP=$(mktemp /tmp/tmp.cds1.XXXXXXXXXX)
TMP2=$(mktemp /tmp/tmp.cds2.XXXXXXXXXX)
trap 'rm -f $TMP $TMP2' 0 1 2 3 15
# wait until master DB is active and has repmgr available
max=40
for s in `seq $max`
do
echo "$s of $max: Asking master $MASTER if repmgr is ready"
bwget -O$TMP http://$MASTER:8000/hasrepmgr
ls -l $TMP
if [ -s $TMP ]
then
msg=$(cat $TMP)
case $msg in
OK* )
echo "Master has repmgr ready"
done=yes
break
;;
* )
echo "Master does not have repmgr ready, msg=$msg"
;;
esac
fi
rm -f $TMP
sleep 15
done
[ "$done" = "yes" ] || die "Master never had repmgr available"
# clone database from master
# make sure /dbroot/pgdata/main is empty
mv $DBROOT $DBROOT-$(date +%Y%m%d%H%M%S)
mkdir -p $DBROOT
# rm -rf $DBROOT/*
repmgr -v -h $MASTER -U repmgr -d repmgr -D $DBROOT -f $CFGDIR/main/repmgr.conf --ignore-external-config-files standby clone
if [ ! -f $DBROOT/PG_VERSION ]
then
umask 022
cat /opt/logs/dcae/postgresql/server/repmgr.log >> /tmp/pgaas-failures
die repmgr clone failed
fi
$CFGDIR/etc/start-db
sleep 10
# register as standby
repmgr -f $CFGDIR/main/repmgr.conf standby register
echo repmgr ret=$?
sleep 10
# start repmgrd
# start repmgrd (verbose logging for testing)
umask 07
# wait until repmgrd starts up
max=20
REPLOG=/opt/logs/dcae/postgresql/server/repmgr.log
done=no
for s in `seq $max`
do
cat $REPLOG > $TMP
repmgrd -f $CFGDIR/main/repmgr.conf -d --verbose
# start repmgrd (normal logging)
# repmgrd -f $CFGDIR/main/repmgr.conf -d
echo repmgrd ret=$?
sleep 5
diff $TMP $REPLOG | grep "ERROR.*terminating" > $TMP2
if [ -s "$TMP2" ]
then cat "$TMP2"
else done=yes; break
fi
sleep 10
done
[ "$done" = "yes" ] || die "Secondary never started repmgrd"
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