centos7编译安装redis脚本

最新推荐文章于 2025-05-14 08:44:13 发布

原创最新推荐文章于 2025-05-14 08:44:13 发布 · 766 阅读

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#redis #数据库 #centos

本文介绍了一种自定义脚本，通过获取用户输入配置Redis安装路径、端口等，嵌入源码并编译，释放配置文件、环境变量，以及管理透明大页，最终完成Redis的定制化部署。

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本文用于记录redis安装脚本编写并将redis5.0.14源码包嵌入脚本的过程。

0x00.编写思路

通过read命令获取redis端口、redis安装目录、redis需要以什么账户运行（提供默认值）
将嵌入到脚本中的redis源码包释放到临时目录并进行编译安装
释放相关配置文件至对应目录中并开启redis服务

0x01.具体实现

通过命令行控制获取用户输入，如果用户未进行输入，则提供默认值

示例代码：

if [ -z $REDIS_BASE ] ; then
    _MANUAL_EXECUTION=true
    _REDIS_BASE=/opt/redis
    read -p "Please select the redis home dir name [$_REDIS_BASE] " REDIS_BASE
    if [ -z "$REDIS_BASE" ] ; then
        REDIS_BASE=$_REDIS_BASE
        echo "Selected default - $_REDIS_BASE"
    fi
fi

获取脚本文件中的redis源码包并进行释放

由于采用base64编码方式（该方式释放后可以保证文件md5值不被改变）将redis源码包放入脚本末尾，因此需要通过awk获取redis数据存放在脚本的开始位置，通过tail命令指定跳过行数将redis数据提取到某位置后，还原成redis源码包。为避免安装覆盖掉原有redis，需要进行一些判断处理。

示例代码：

buid_install() {
    if gcc --version >/dev/null ; then
        if [ ! -e ${REDIS_BASE}/bin/redis-server ] ; then
            skip_rownum=$(awk '/^#__BIN_FILE_BEGIN__/ {print NR + 1; exit 0; }' "$1")
            zipname=/tmp/redis-5.0.14.tar.gz
            tmpname=/tmp/redis_file
            tail -n +${skip_rownum} "$1" >${tmpname}
            base64 -d ${tmpname} > ${zipname}
            md5="406a4ddbdf0b60b4f288bf0c3cb06933"
            tmpmd5=$(md5sum ${zipname}|cut -f1 -d' ')
            if [ "$md5"="$tmpmd5" ] ; then
                cd $(dirname ${zipname})
                tar zxf $(basename ${zipname})
                cd ${zipname$.tar.gz}
                make -j$(cat /proc/cpuinfo |grep "physical id"|wc -l) >/dev/null
                make install PREFIX=$2
                rm -rf /tmp/redis*
            else
                rm -rf /tmp/redis*
                die "Emmmmm....The installation package is damaged and the installation is stopped."
            fi
        else
            echo "Skiping Build..."
        fi
    else
        die "GCC is not installed, installation exit"
    fi
}

释放相关文件

释放redis配置文件：

CONF_FILE=${REDIS_BASE}/conf/${REDIS_PORT}.conf
cat >${CONF_FILE} <<EOF
bind 0.0.0.0
protected-mode yes
port 6379
requirepass ${PASSWD}
masterauth ${PASSWD}
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize yes
supervised no
pidfile ${PIDFILE}
loglevel notice
logfile ${LOGFILE}
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir /opt/redis/data/6379
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes
EOF

释放用于systemed的redis环境变量文件：

cat >${REDIS_BASE}/conf/redis-env-${REDIS_PORT} <<EOF
PASSWORD=${PASSWD}
PORT=${REDIS_PORT}
CONFIG_FILE=${CONF_FILE}
EOF

释放用于关闭Transparent Huge Pages（大内存页）的脚本并配置开机运行：

由于redis的特性，开启大页内存会影响性能

cat > ${REDIS_BASE}/bin/close_thp.sh <<EOF
#!/bin/bash
if test -f /sys/kernel/mm/transparent_hugepage/enabled; then
    echo never > /sys/kernel/mm/transparent_hugepage/enabled
fi
if test -f /sys/kernel/mm/transparent_hugepage/defrag; then
    echo never > /sys/kernel/mm/transparent_hugepage/defrag
fi
EOF
chmod +x ${REDIS_BASE}/bin/close_thp.sh
if ! grep "${REDIS_BASE}/bin/close_thp.sh"  /etc/rc.local ; then
    cat >> /etc/rc.local <<EOF
bash ${REDIS_BASE}/bin/close_thp.sh
EOF
fi
chmod +x /etc/rc.local

释放systemed单元配置文件及配置PATH环境变量：

cat > /usr/lib/systemd/system/redis_${REDIS_PORT}.service <<EOF
[Unit]
Description=The redis service is deployed by BitBears
After=syslog.target network-online.target remote-fs.target nss-lookup.target
Wants=network-online.target

[Service]
Type=forking
PIDFile=${PIDFILE}
EnvironmentFile=${REDIS_BASE}/conf/redis-env-${REDIS_PORT}
ExecStart=${REDIS_BASE}/bin/redis-server \${CONFIG_FILE}
ExecStop=${REDIS_BASE}/bin/redis-cli -a "\${PASSWORD}" -p \${PORT} shutdown
Restart=on-failure
RestartSec=10
User=${USERNAME}
Group=${GROUPNAME}
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
systemctl enable --now redis_${REDIS_PORT}
cat >/etc/profile.d/BitBears_redis.sh <<EOF
REDIS_HOME=$REDIS_BASE && export REDIS_HOME
PATH=\${REDIS_HOME}/bin:\${PATH} && export PATH
EOF
source /etc/profile.d/BitBears_redis.sh

0x02.成品及使用方式

下载脚本

https://download.youkuaiyun.com/download/bitpanda_1/53410491https://download.youkuaiyun.com/download/bitpanda_1/53410491

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