1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
|
#!/usr/bin/env bash
set -o errexit
set -o nounset
set -o pipefail
PGVER="$1"
HAPASS="$2"
MASTER_IP="$3"
# install required packages
P=$(curl -s "https://download.postgresql.org/pub/repos/yum/${PGVER}/redhat/rhel-7-x86_64/"|grep -Eo "pgdg-centos[0-9.]+-${PGVER}-[0-9]+\.noarch.rpm"|head -1)
if ! rpm --quiet -q "${P/.rpm}"; then
yum install --nogpgcheck --quiet -y -e 0 "https://download.postgresql.org/pub/repos/yum/${PGVER}/redhat/rhel-7-x86_64/$P"
fi
PACKAGES=(
pacemaker pcs resource-agents resource-agents-paf fence-agents-virsh sbd
"postgresql${PGVER}"
"postgresql${PGVER}-server"
"postgresql${PGVER}-contrib"
)
yum install --nogpgcheck --quiet -y -e 0 "${PACKAGES[@]}"
# firewall setup
systemctl --quiet --now enable firewalld
firewall-cmd --quiet --permanent --add-service=high-availability
firewall-cmd --quiet --permanent --add-service=postgresql
firewall-cmd --quiet --reload
# cluster stuffs
systemctl --quiet --now enable pcsd
echo "${HAPASS}"|passwd --stdin hacluster > /dev/null 2>&1
cp /etc/sysconfig/pacemaker /etc/sysconfig/pacemaker.dist
cat<<'EOF' > /etc/sysconfig/pacemaker
PCMK_debug=yes
PCMK_logpriority=debug
EOF
# cleanup master ip everywhere
HAS_MASTER_IP=$(ip -o addr show to "${MASTER_IP}"|wc -l)
if [ "$HAS_MASTER_IP" -gt 0 ]; then
DEV=$(ip route show to "${MASTER_IP}/24"|grep -Eom1 'dev \w+')
ip addr del "${MASTER_IP}/24" dev "${DEV/dev }"
fi
# send logs to log-sinks
cat <<'EOF' >/etc/rsyslog.d/fwd_log_sink.conf
*.* action(type="omfwd"
queue.type="LinkedList"
queue.filename="log_sink_fwd"
action.resumeRetryCount="-1"
queue.saveonshutdown="on"
target="log-sink" Port="514" Protocol="tcp")
EOF
systemctl --quiet restart rsyslog
|