fuel-ccp-galera/service/files/percona_entrypoint.sh.j2

#!/bin/bash

set -ex
# Forward logs to docker log collector
exec 1>/proc/1/fd/2 2>/proc/1/fd/2

MYSQL_ROOT_PASSWORD={{ db.root_password }}
DISCOVERY_SERVICE={{ address("etcd", etcd.client_port) }}
CLUSTER_NAME={{ percona.cluster_name }}
XTRABACKUP_PASSWORD={{ percona.xtrabackup_password }}
MONITOR_PASSWORD={{ percona.monitor_password }}
CURL="curl -sS"

# if command starts with an option, prepend mysqld
if [ "${1:0:1}" = '-' ]; then
        CMDARG="$@"
fi

if [ -z "$CLUSTER_NAME" ]; then
        echo >&2 'Error:  You need to specify CLUSTER_NAME'
        exit 1
fi

# Get config
DATADIR="$("mysqld" --verbose --wsrep_provider= --help 2>/dev/null | awk '$1 == "datadir" { print $2; exit }')"

if [ ! -e "$DATADIR/init.ok" ]; then
         if [ -z "$MYSQL_ROOT_PASSWORD" -a -z "$MYSQL_ALLOW_EMPTY_PASSWORD" -a -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then
                echo >&2 'error: database is uninitialized and password option is not specified '
                echo >&2 '  You need to specify one of MYSQL_ROOT_PASSWORD, MYSQL_ALLOW_EMPTY_PASSWORD and MYSQL_RANDOM_ROOT_PASSWORD'
                exit 1
         fi
         rm -rf $DATADIR/*
         mkdir -p "$DATADIR"
         ls -la "$DATADIR"/

         echo "Running --initialize-insecure on $DATADIR"
         mysqld --initialize-insecure
         echo 'Finished --initialize-insecure'

         mysqld --user=mysql --datadir="$DATADIR" --skip-networking &
         pid="$!"

         mysql=( mysql --protocol=socket -uroot )

         for i in {30..0}; do
                if echo 'SELECT 1' | "${mysql[@]}" &> /dev/null; then
                        break
                fi
                echo 'MySQL init process in progress...'
                sleep 1
         done
         if [ "$i" = 0 ]; then
                echo >&2 'MySQL init process failed.'
                exit 1
         fi

         # sed is for https://bugs.mysql.com/bug.php?id=20545
         mysql_tzinfo_to_sql /usr/share/zoneinfo | sed 's/Local time zone must be set--see zic manual page/FCTY/' | "${mysql[@]}" mysql
         if [ ! -z "$MYSQL_RANDOM_ROOT_PASSWORD" ]; then
                MYSQL_ROOT_PASSWORD="$(pwmake 128)"
                echo "GENERATED ROOT PASSWORD: $MYSQL_ROOT_PASSWORD"
         fi
         "${mysql[@]}" <<-EOSQL
		-- What's done in this file shouldn't be replicated
		--  or products like mysql-fabric won't work
		SET @@SESSION.SQL_LOG_BIN=0;
		CREATE USER 'root'@'%' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}' ;
		GRANT ALL ON *.* TO 'root'@'%' WITH GRANT OPTION ;
		ALTER USER 'root'@'localhost' IDENTIFIED BY '${MYSQL_ROOT_PASSWORD}';
		CREATE USER 'xtrabackup'@'localhost' IDENTIFIED BY '$XTRABACKUP_PASSWORD';
		GRANT RELOAD,PROCESS,LOCK TABLES,REPLICATION CLIENT ON *.* TO 'xtrabackup'@'localhost';
		GRANT REPLICATION CLIENT ON *.* TO monitor@'%' IDENTIFIED BY '$MONITOR_PASSWORD';
		GRANT PROCESS ON *.* TO monitor@localhost IDENTIFIED BY '$MONITOR_PASSWORD';
		DROP DATABASE IF EXISTS test ;
		FLUSH PRIVILEGES ;
		EOSQL
         if [ ! -z "$MYSQL_ROOT_PASSWORD" ]; then
                mysql+=( -p"${MYSQL_ROOT_PASSWORD}" )
         fi

         if [ "$MYSQL_DATABASE" ]; then
                echo "CREATE DATABASE IF NOT EXISTS \`$MYSQL_DATABASE\` ;" | "${mysql[@]}"
                mysql+=( "$MYSQL_DATABASE" )
         fi

         if [ "$MYSQL_USER" -a "$MYSQL_PASSWORD" ]; then
                echo "CREATE USER '"$MYSQL_USER"'@'%' IDENTIFIED BY '"$MYSQL_PASSWORD"' ;" | "${mysql[@]}"

                if [ "$MYSQL_DATABASE" ]; then
                        echo "GRANT ALL ON \`"$MYSQL_DATABASE"\`.* TO '"$MYSQL_USER"'@'%' ;" | "${mysql[@]}"
                fi

                echo 'FLUSH PRIVILEGES ;' | "${mysql[@]}"
         fi

         if [ ! -z "$MYSQL_ONETIME_PASSWORD" ]; then
                "${mysql[@]}" <<-EOSQL
			ALTER USER 'root'@'%' PASSWORD EXPIRE;
			EOSQL
         fi
         if ! kill -s TERM "$pid" || ! wait "$pid"; then
                echo >&2 'MySQL init process failed.'
                exit 1
         fi

         echo
         echo 'MySQL init process done. Ready for start up.'
         echo
fi
touch $DATADIR/init.ok

if [ -z "$DISCOVERY_SERVICE" ]; then
         cluster_join=$CLUSTER_JOIN
else

echo
echo 'Registering in the discovery service'
echo

function join { local IFS="$1"; shift; echo "$*"; }

# Read the list of registered IP addresses
ipaddr=$(hostname -i | awk ' { print $1 } ')
hostname=$(hostname)

$CURL http://$DISCOVERY_SERVICE/v2/keys/pxc-cluster/queue/$CLUSTER_NAME -XPOST -d value=$ipaddr -d ttl=60

#get list of IP from queue
i=( $($CURL http://$DISCOVERY_SERVICE/v2/keys/pxc-cluster/queue/$CLUSTER_NAME | jq -r '.node.nodes[].value') )

# this remove my ip from the list
i1=${i[@]/$ipaddr}

# Register the current IP in the discovery service

# key set to expire in 30 sec. There is a cronjob that should update them regularly
$CURL http://$DISCOVERY_SERVICE/v2/keys/pxc-cluster/$CLUSTER_NAME/$ipaddr/ipaddr -XPUT -d value="$ipaddr" -d ttl=30
$CURL http://$DISCOVERY_SERVICE/v2/keys/pxc-cluster/$CLUSTER_NAME/$ipaddr/hostname -XPUT -d value="$hostname" -d ttl=30
$CURL http://$DISCOVERY_SERVICE/v2/keys/pxc-cluster/$CLUSTER_NAME/$ipaddr -XPUT -d ttl=30 -d dir=true -d prevExist=true

i=( $($CURL http://$DISCOVERY_SERVICE/v2/keys/pxc-cluster/$CLUSTER_NAME/?quorum=true | jq -r '.node.nodes[]?.key' | awk -F'/' '{print $(NF)}') )
# this remove my ip from the list
i2=${i[@]/$ipaddr}

# Combine to arrays and remove duplicates
OLDIFS="$IFS"
IFS=$'\n'
combined=(`for R in "${i1[@]}" "${i2[@]}" ; do echo "$R" ; done | sort -du`)
IFS="$OLDIFS"

cluster_join=$(join , $combined )
echo "Joining cluster $cluster_join"

bash /opt/ccp/bin/clustercheckcron monitor monitor 1 /var/lib/mysql/clustercheck.log 1 &

fi

mysqld --user=mysql --wsrep_cluster_name=$CLUSTER_NAME \
       --wsrep_cluster_address="gcomm://$cluster_join" \
       --wsrep_sst_method=xtrabackup-v2 \
       --wsrep_sst_auth="xtrabackup:$XTRABACKUP_PASSWORD" \
       --wsrep_node_address="$ipaddr" \
       --pxc_strict_mode=PERMISSIVE \
       $CMDARG