使用之前准备工作:
1)配置好与端口无关的公共redis.conf文件,和工具放在同一目录下
2)配置好与端口相关的模板redis-PORT.conf文件,也和工具放在同一目录下(部署时PORT会被替换成具体的端口号)
3)配置好组成集群的节点文件redis_cluster.nodes,也和工具放在同一目录下
redis_cluster.nodes的文件格式为每行一个组成Redis集群的节点,支持“#”打头的注释行,格式示例:
127.0.0.1 6381
127.0.0.1 6382
127.0.0.1 6383
127.0.0.1 6384
127.0.0.1 6385
127.0.0.1 6386
4)创建好安装redis的目录(可建筑批量工具mooon_ssh完成,deploy_redis_cluster.sh主要也是利用了该批量工具)
5)其它更详细的可以直接看源代码,有详细的说明。
建立将下载到一个目录,运行deploy_redis_cluster.sh工具时,它会提示各种前置条件,比如redis-cli是否可用等。
源码(可从下载):
-
#!/bin/bash
-
# 源代码:
-
# a tool to deploy a redis cluster
-
#
-
# 自动化部署redis集群工具,
-
# 远程操作即可,不需登录到Redis集群中的任何机器。
-
#
-
# 以root用户批量创建用户redis示例:
-
# export H=192.168.0.5,192.168.0.6,192.168.0.7,192.168.0.8,192.168.0.9
-
# export U=root
-
# export P='root^1234'
-
# mooon_ssh -c='groupadd redis; useradd -g redis -m redis; echo "redis:redis#1234"|chpasswd'
-
#
-
# 批量创建redis安装目录/data/redis-4.0.11,并设置owner为用户redis,用户组为redis示例:
-
# mooon_ssh -c='mkdir /data/redis-4.0.11;ln -s /data/redis-4.0.11 /data/redis;chown redis:redis /data/redis*'
-
#
-
# 可使用process_monitor.sh监控redis-server进程重启:
-
#
-
# 使用示例:
-
# * * * * * /usr/local/bin/process_monitor.sh "/usr/local/redis/bin/redis-server 6379" "/usr/local/redis/bin/redis-server /usr/local/redis/conf/redis-6379.conf"
-
# * * * * * /usr/local/bin/process_monitor.sh "/usr/local/redis/bin/redis-server 6380" "/usr/local/redis/bin/redis-server /usr/local/redis/conf/redis-6380.conf"
-
# 可在/tmp目录找到process_monitor.sh的运行日志,当对应端口的进程不在时,5秒内即会重启对应端口的进程。
-
#
-
# 运行参数:
-
# 参数1 SSH端口
-
# 参数2 安装用户
-
# 参数3 安装用户密码
-
# 参数4 安装目录
-
#
-
# 前置条件(可借助批量工具mooon_ssh和mooon_upload完成):
-
# 1)安装用户已经创建好
-
# 2)安装用户密码已经设置好
-
# 3)安装目录已经创建好,并且目录的owner为安装用户
-
# 4)执行本工具的机器上安装好了ruby,且版本号不低于2.0.0
-
# 5)执行本工具的机器上安装好了redis-X.Y.Z.gem,且版本号不低于redis-3.0.0.gem
-
#
-
# 6)同目录下存在以下几个可执行文件:
-
# 6.1)redis-server
-
# 6.2)redis-cli
-
# 6.3)redis-check-rdb
-
# 6.4)redis-check-aof
-
# 6.5)redis-trib.rb
-
#
-
# 7)同目录下存在以下两个配置文件:
-
# 7.1)redis.conf
-
# 7.2)redis-PORT.conf
-
# 其中redis.conf为公共配置文件,
-
# redis-PORT.conf为指定端口的配置文件模板,
-
# 同时,需要将redis-PORT.conf文件中的目录和端口分别使用INSTALLDIR和REDISPORT替代,示例:
-
# include INSTALLDIR/conf/redis.conf
-
# pidfile INSTALLDIR/bin/redis-REDISPORT.pid
-
# logfile INSTALLDIR/log/redis-REDISPORT.log
-
# port REDISPORT
-
# dbfilename dump-REDISPORT.rdb
-
# dir INSTALLDIR/data/REDISPORT
-
#
-
# 其中INSTALLDIR将使用参数4的值替换,
-
# 而REDISPORT将使用redis_cluster.nodes中的端口号替代
-
#
-
# 配置文件redis_cluster.nodes,定义了安装redis的节点
-
# 文件格式(以“#”打头的为注释):
-
# 每行由IP和端口号组成,两者间可以:空格、逗号、分号、或TAB符分隔
-
#
-
# 依赖:
-
# 1)mooon_ssh 远程操作多台机器批量命令工具
-
# 2)mooon_upload 远程操作多台机器批量上传工具
-
# 3)
-
# 4)libmooon又依赖libssh2()
-
-
BASEDIR=$(dirname $(readlink -f $0))
-
REDIS_CLUSTER_NODES=$BASEDIR/redis_cluster.nodes
-
-
# 批量命令工具
-
MOOON_SSH=mooon_ssh
-
# 批量上传工具
-
MOOON_UPLOAD=mooon_upload
-
# 创建redis集群工具
-
REDIS_TRIB=$BASEDIR/redis-trib.rb
-
# redis-server
-
REDIS_SERVER=$BASEDIR/redis-server
-
# redis-cli
-
REDIS_CLI=$BASEDIR/redis-cli
-
# redis-check-aof
-
REDIS_CHECK_AOF=$BASEDIR/redis-check-aof
-
# redis-check-rdb
-
REDIS_CHECK_RDB=$BASEDIR/redis-check-rdb
-
# redis.conf
-
REDIS_CONF=$BASEDIR/redis.conf
-
# redis-PORT.conf
-
REDIS_PORT_CONF=$BASEDIR/redis-PORT.conf
-
-
# 全局变量
-
# 组成redis集群的总共节点数
-
num_nodes=0
-
# 组成redis集群的所有IP数组
-
redis_node_ip_array=()
-
# 组成redis集群的所有节点数组(IP+port构造一个redis节点)
-
redis_node_array=()
-
-
# 用法
-
function usage()
-
{
-
echo -e "\033[1;33mUsage\033[m: `basename $0` \033[0;32;32mssh-port\033[m install-user \033[0;32;32minstall-user-password\033[m install-dir"
-
echo -e "\033[1;33mExample\033[m: `basename $0` \033[0;32;32m22\033[m redis \033[0;32;32mredis^1234\033[m /usr/local/redis-4.0.11"
-
}
-
-
# 需要指定五个参数
-
if test $# -ne 4; then
-
usage
-
echo ""
-
exit 1
-
fi
-
-
ssh_port="$1"
-
install_user="$2"
-
install_user_password="$3"
-
install_dir="$4"
-
echo -e "[ssh port] \033[1;33m$ssh_port\033[m"
-
echo -e "[install user] \033[1;33m$install_user\033[m"
-
echo -e "[install directory] \033[1;33m$install_dir\033[m"
-
echo ""
-
-
# 检查ruby是否可用
-
which ruby > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking ruby OK"
-
else
-
echo -e "ruby \033[0;32;31mnot exists or not executable\033[m"
-
echo ""
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查gem是否可用
-
which gem > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking gem OK"
-
else
-
echo -e "gem \033[0;32;31mnot exists or not executable\033[m"
-
echo ""
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查mooon_ssh是否可用
-
which "$MOOON_SSH" > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking $MOOON_SSH OK"
-
else
-
echo -e "$MOOON_SSH \033[0;32;31mnot exists or not executable\033[m"
-
echo "There are two versions: C++ and GO:"
-
echo ""
-
echo "/master/tools/mooon_ssh.cpp"
-
echo "/master/tools/mooon_ssh.go"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查mooon_upload是否可用
-
which "$MOOON_UPLOAD" > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking $MOOON_UPLOAD OK"
-
else
-
echo -e "$MOOON_UPLOAD \033[0;32;31mnot exists or not executable\033[m"
-
echo "There are two versions: C++ and GO:"
-
echo ""
-
echo "/master/tools/mooon_upload.cpp"
-
echo "/master/tools/mooon_upload.go"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查redis-trib.rb是否可用
-
which "$REDIS_TRIB" > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking $REDIS_TRIB OK"
-
else
-
echo -e "$REDIS_TRIB \033[0;32;31mnot exists or not executable\033[m"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查redis-server是否可用
-
which "$REDIS_SERVER" > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking $REDIS_SERVER OK"
-
else
-
echo -e "$REDIS_SERVER \033[0;32;31mnot exists or not executable\033[m"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查redis-cli是否可用
-
which "$REDIS_CLI" > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking $REDIS_CLI OK"
-
else
-
echo -e "$REDIS_CLI \033[0;32;31mnot exists or not executable\033[m"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查redis-check-aof是否可用
-
which "$REDIS_CHECK_AOF" > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking $REDIS_CHECK_AOF OK"
-
else
-
echo -e "$REDIS_CHECK_AOF \033[0;32;31mnot exists or not executable\033[m"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查redis-check-rdb是否可用
-
which "$REDIS_CHECK_RDB" > /dev/null 2>&1
-
if test $? -eq 0; then
-
echo -e "Checking $REDIS_CHECK_RDB OK"
-
else
-
echo -e "$REDIS_CHECK_RDB \033[0;32;31mnot exists or not executable\033[m"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查redis.conf是否可用
-
if test -r "$REDIS_CONF"; then
-
echo -e "Checking $REDIS_CONF OK"
-
else
-
echo -e "$REDIS_CONF \033[0;32;31mnot exists or not readable\033[m"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 检查redis-PORT.conf是否可用
-
if test -r "$REDIS_PORT_CONF"; then
-
echo -e "Checking $REDIS_PORT_CONF OK"
-
else
-
echo -e "$REDIS_PORT_CONF \033[0;32;31mnot exists or not readable\033[m"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 解析redis_cluster.nodes文件,
-
# 从而得到组成redis集群的所有节点。
-
function parse_redis_cluster_nodes()
-
{
-
redis_nodes_str=
-
redis_nodes_ip_str=
-
while read line
-
do
-
# 删除前尾空格
-
line=`echo "$line" | xargs`
-
if test -z "$line" -o "$line" = "#"; then
-
continue
-
fi
-
-
# 跳过注释
-
begin_char=${line:0:1}
-
if test "$begin_char" = "#"; then
-
continue
-
fi
-
-
# 取得IP和端口
-
eval $(echo "$line" | awk -F[\ \:,\;\t]+ '{ printf("ip=%s\nport=%s\n",$1,$2); }')
-
-
# IP和端口都必须有
-
if test ! -z "$ip" -a ! -z "$port"; then
-
if test -z "$redis_nodes_ip_str"; then
-
redis_nodes_ip_str=$ip
-
else
-
redis_nodes_ip_str="$redis_nodes_ip_str,$ip"
-
fi
-
-
if test -z "$redis_nodes_str"; then
-
redis_nodes_str="$ip:$port"
-
else
-
redis_nodes_str="$redis_nodes_str,$ip:$port"
-
fi
-
fi
-
done < $REDIS_CLUSTER_NODES
-
-
if test -z "$redis_nodes_ip_str"; then
-
num_nodes=0
-
else
-
# 得到IP数组redis_node_ip_array
-
redis_node_ip_array=`echo "$redis_nodes_ip_str" | tr ',' '\n' | sort | uniq`
-
-
# 得到节点数组redis_node_array
-
redis_node_array=`echo "$redis_nodes_str" | tr ',' '\n' | sort | uniq`
-
-
for redis_node in ${redis_node_array[@]};
-
do
-
num_nodes=$((++num_nodes))
-
echo "$redis_node"
-
done
-
fi
-
}
-
-
# check redis_cluster.nodes
-
if test ! -r $REDIS_CLUSTER_NODES; then
-
echo -e "File $REDIS_CLUSTER_NODES \033[0;32;31mnot exits\033[m"
-
echo ""
-
echo -e "\033[0;32;32mFile format\033[m (columns delimited by space, tab, comma, semicolon or colon):"
-
echo "IP1 port1"
-
echo "IP2 port2"
-
echo ""
-
echo -e "\033[0;32;32mExample\033[m:"
-
echo "127.0.0.1 6381"
-
echo "127.0.0.1 6382"
-
echo "127.0.0.1 6383"
-
echo "127.0.0.1 6384"
-
echo "127.0.0.1 6385"
-
echo "127.0.0.1 6386"
-
echo -e "Exit now\n"
-
exit 1
-
else
-
echo -e "\033[0;32;32m"
-
parse_redis_cluster_nodes
-
echo -e "\033[m"
-
-
if test $num_nodes -lt 1; then
-
echo -e "Checking $REDIS_CLUSTER_NODES \033[0;32;32mfailed\033[m: no any node"
-
echo -e "Exit now\n"
-
exit 1
-
else
-
echo -e "Checking $REDIS_CLUSTER_NODES OK, the number of nodes is \033[1;33m${num_nodes}\033[m"
-
fi
-
fi
-
-
# 确认后再继续
-
while true
-
do
-
# 组成一个redis集群至少需要六个节点
-
if test $num_nodes -lt 6; then
-
echo -e "\033[0;32;32mAt least 6 nodes are required to create a redis cluster\033[m"
-
fi
-
-
# 提示是否继续
-
echo -en "Are you sure to continue? [\033[1;33myes\033[m/\033[1;33mno\033[m]"
-
read -r -p " " input
-
-
if test "$input" = "no"; then
-
echo -e "Exit now\n"
-
exit 1
-
elif test "$input" = "yes"; then
-
echo "Starting to install ..."
-
echo ""
-
break
-
fi
-
done
-
-
# 是否先清空安装目录再安装?
-
clear_install_directory=
-
while true
-
do
-
echo -en "Clear install directory? [\033[1;33myes\033[m/\033[1;33mno\033[m]"
-
read -r -p " " clear_install_directory
-
-
if test "$clear_install_directory" = "no"; then
-
echo ""
-
break
-
elif test "$clear_install_directory" = "yes"; then
-
echo ""
-
break
-
fi
-
done
-
-
# 安装公共的,包括可执行程序文件和公共配置文件
-
function install_common()
-
{
-
redis_ip="$1"
-
-
# 检查安装目录是否存在,且有读写权限
-
echo "$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c=\"test -d $install_dir && test -r $install_dir && test -w $install_dir && test -x $install_dir\""
-
$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c="test -d $install_dir && test -r $install_dir && test -w $install_dir && test -x $install_dir"
-
if test $? -ne 0; then
-
echo ""
-
echo -e "Directory $install_dir \033[1;33mnot exists or no (rwx) permission\033[m"
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 清空安装目录
-
if test "$clear_install_directory" = "yes"; then
-
echo ""
-
echo "$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c=\"killall -q -w -u $install_user redis-server\""
-
$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c="killall -q -w -u $install_user redis-server"
-
-
echo "$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c=\"rm -fr $install_dir/*\""
-
$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c="rm -fr $install_dir/*"
-
if test $? -ne 0; then
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
fi
-
-
# 创建公共目录(create directory)
-
echo ""
-
echo "$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c=\"cd $install_dir;mkdir -p bin conf log data\""
-
$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c="cd $install_dir;mkdir -p bin conf log data"
-
if test $? -ne 0; then
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 上传公共配置文件(upload configuration files)
-
echo ""
-
echo "$MOOON_UPLOAD -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -s=redis.conf -d=$install_dir/conf"
-
$MOOON_UPLOAD -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -s=redis.conf -d=$install_dir/conf
-
if test $? -ne 0; then
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 上传公共执行文件(upload executable files)
-
echo ""
-
echo "$MOOON_UPLOAD -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -s=redis-server,redis-cli,redis-check-aof,redis-check-rdb -d=$install_dir/bin"
-
$MOOON_UPLOAD -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -s=redis-server,redis-cli,redis-check-aof,redis-check-rdb,redis-trib.rb -d=$install_dir/bin
-
if test $? -ne 0; then
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
}
-
-
# 安装节点配置文件
-
function install_node_conf()
-
{
-
redis_ip="$1"
-
redis_port="$2"
-
-
# 生成节点配置文件
-
cp redis-PORT.conf redis-$redis_port.conf
-
sed -i "s|INSTALLDIR|$install_dir|g;s|REDISPORT|$redis_port|g" redis-$redis_port.conf
-
-
# 创建节点数据目录(create data directory for the given node)
-
echo ""
-
echo "$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c=\"cd $install_dir;mkdir -p data/$redis_port\""
-
$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c="cd $install_dir;mkdir -p data/$redis_port"
-
if test $? -ne 0; then
-
rm -f redis-$redis_port.conf
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
# 上传节点配置文件(upload configuration files)
-
echo ""
-
echo "$MOOON_UPLOAD -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -s=redis-$redis_port.conf -d=$install_dir/conf"
-
$MOOON_UPLOAD -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -s=redis-$redis_port.conf -d=$install_dir/conf
-
if test $? -ne 0; then
-
rm -f redis-$redis_port.conf
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
-
rm -f redis-$redis_port.conf
-
}
-
-
function start_redis_node()
-
{
-
redis_ip="$1"
-
redis_port="$2"
-
-
# 启动redis实例(start redis instance)
-
echo ""
-
echo "$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c=\"$install_dir/bin/redis-server $install_dir/conf/redis-$redis_port.conf\""
-
$MOOON_SSH -h=$redis_ip -P=$ssh_port -u=$install_user -p=$install_user_password -c="nohup $install_dir/bin/redis-server $install_dir/conf/redis-$redis_port.conf > /dev/null 2>&1 &"
-
if test $? -ne 0; then
-
echo -e "Exit now\n"
-
exit 1
-
fi
-
}
-
-
# 安装公共的,包括可执行程序文件和公共配置文件
-
echo ""
-
echo -e "\033[1;33m================================\033[m"
-
for redis_node_ip in $redis_node_ip_array;
-
do
-
echo -e "[\033[1;33m$redis_node_ip\033[m] Installing common ..."
-
install_common $redis_node_ip
-
done
-
-
# 安装节点配置文件
-
echo ""
-
echo -e "\033[1;33m================================\033[m"
-
for redis_node in ${redis_node_array[@]};
-
do
-
node_ip=
-
node_port=
-
-
eval $(echo "$redis_node" | awk -F[\ \:,\;\t]+ '{ printf("node_ip=%s\nnode_port=%s\n",$1,$2); }')
-
if test -z "$node_ip" -o -z "$node_port"; then
-
continue
-
fi
-
-
echo -e "[\033[1;33m$node_ip:$node_port\033[m] Installing node ..."
-
install_node_conf $node_ip $node_port
-
done
-
-
# 确认后再继续
-
echo ""
-
echo -e "\033[1;33m================================\033[m"
-
while true
-
do
-
echo -en "Start redis? [\033[1;33myes\033[m/\033[1;33mno\033[m]"
-
read -r -p " " input
-
-
if test "$input" = "no"; then
-
echo ""
-
exit 1
-
elif test "$input" = "yes"; then
-
echo "Starting to start redis ..."
-
echo ""
-
break
-
fi
-
done
-
-
# 启动redis实例(start redis instance)
-
for redis_node in ${redis_node_array[@]};
-
do
-
eval $(echo "$redis_node" | awk -F[\ \:,\;\t]+ '{ printf("node_ip=%s\nnode_port=%s\n",$1,$2); }')
-
if test -z "$node_ip" -o -z "$node_port"; then
-
continue
-
fi
-
-
echo -e "[\033[1;33m$node_ip:$node_port\033[m] Starting node ..."
-
start_redis_node $node_ip $node_port
-
done
-
-
echo ""
-
echo -e "\033[1;33m================================\033[m"
-
echo "Number of nodes: $num_nodes"
-
if test $num_nodes -lt 6; then
-
echo "Number of nodes less than 6, can not create redis cluster"
-
echo -e "Exit now\n"
-
exit 1
-
else
-
redis_nodes_str=`echo "$redis_nodes_str" | tr ',' ' '`
-
-
# 确认后再继续
-
echo ""
-
while true
-
do
-
echo -en "Create redis cluster? [\033[1;33myes\033[m/\033[1;33mno\033[m]"
-
read -r -p " " input
-
-
if test "$input" = "no"; then
-
echo ""
-
exit 1
-
elif test "$input" = "yes"; then
-
echo "Starting to create redis cluster with $redis_nodes_str ... ..."
-
echo ""
-
break
-
fi
-
done
-
-
# 创建redis集群(create redis cluster)
-
# redis-trib.rb create --replicas 1
-
$REDIS_TRIB create --replicas 1 $redis_nodes_str
-
echo -e "Exit now\n"
-
exit 0
-
fi
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