Puppet Self-coding module (iii): Redis

I. Description of the module

Redis is an open source API that is written in ANSI C , supports the web, can be persisted in memory, Key-value databases, and provides multiple languages .

data persistence has snapshot and log append methods, where snapshots are used to periodically save data in the Dump.rdb file

Configuring Master-Slave synchronization allows multiple slave to share the load of read requests or disable data persistence in master, reducing the burden and persisting only in slave configuration.

II. directory Structure

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Third, code display

1. Files Directory

Redis #redis服务脚本

#!/bin/sh# chkconfig: 2345 80 90# simple redis init.d script  conceived to work on linux systems# as it does use of  The /proc filesystem.# src file is  /usr/local/redis/utils/redis_init_ scriptredisport=6379exec=/usr/local/bin/redis-servercliexec=/usr/local/bin/redis-clipidfile=/var/run/ redis.pidconf= "/etc/redis.conf" case  "$"  in    start) if [ -f $ pidfile ]thenecho  "$PIDFILE  exists, process is already running or  crashed "elseecho " Starting redis server $EXEC   $CONF  &fi;; Stop) if [ ! -f  $PIDFILE  ]thenecho  $PIDFILE  does not exist,  Process is not running "elsepid=$ (cat  $PIDFILE) echo " stopping  ... "$CLIEXEC  - p  $REDISPORT  shutdownwhile [ -x /proc/${pid} ]doecho  "waiting for redis to shutdown&nbsp ..." sleep  1doneecho  "redis stopped" FI;; *) echo  "please use start or stop as first argument";; Esac

redis-2.8.19.tar.gz #redis安装包, download http://download.redis.io/releases/redis-2.8.19.tar.gz

2. Manifests Catalogue

init.pp

Class redis{Exec {path = "/usr/bin:/bin:/usr/sbin:/sbin"} include Redis::install,redis::config,redis::service }

install.pp

class redis::install {  exec{  path => ['/usr/bin ', '/usr/sbin ', '/ Bin '] }  package { [' gcc ', ' gcc-c++ ', ' Perl ', ' pcre ', ' zlib-devel ', ' openssl-devel ', ' Tcl ' :     ensure => installed,    before => exec[ ' Install '],  }  file {  ' Redis ':    path =>  '/ Usr/local/src/redis-2.8.19.tar.gz ',    ensure  => directory,     source  =>  ' puppet:///modules/redis/redis-2.8.19.tar.gz ',     ignore  =>  '. SvN ',     owner   => root,     group   => root,    mode     =>  ' 0640 ',  }  exec {  ' Tar redis ':     Command     =>  ' tar -zxf redis-2.8.19.tar.gz ',    cwd          =>  '/usr/local/src ',    refreshonly =>  true,    subscribe   => file[' Redis '],  }   exec {  ' Mv redis ':    command     =>   ' Mv -f redis-2.8.19 /usr/local/redis ',    cwd          =>  '/usr/local/src ',    refreshonly =>  true,    subscribe   => exec[' Tar redis '],  }   exec {  ' Install ':    command     =>  ' make  && make install ',    cwd          =>  '/usr/local/redis ',     refreshonly => true,    subscribe    => exec[' Mv redis '],  }}

     config.pp  

class redis::config {    case  $redis _conf {     master: {        file {  '/etc/redis.conf ':             ensure  => file,             owner   => root,             group   => root,             mode    =>  400,            content =>  Template ("Redis/master-redis.conf.erb"),             notify  => class[' Redis::service '],             require =>&nBsp class[' Redis::install '],        }    }     slave: {        file {  '/etc/redis.conf ':                 ensure   => file,                 owner   => root,                 group   => root,                 mode    =>  400,                 Content => template ("Redis/slave-redis.conf.erb"),                 notify  => class[' Redis::service '],                 require => class[' Redis::install '),             }         }    }    file {  ' REDISD ':         path    =>  '/etc/rc.d/init.d/redis ',         ensure  => file,         owner   => root,        group    => root,        mode    =>  755,        source  =>  ' puppet:///modules/ Redis/redis ',    &nbsP;}     exec {  ' iptables -i input -p tcp --dport 6379  -j accept && service iptables save ':         unless  =>  ' grep  ' 6379 " /etc/sysconfig/iptables 2>/dev/ Null ',     }}

     service.pp

class redis::service {    service {  ' Redis ':          ensure     =>  ' Running ',         enable     =>  ' true ',         hasrestart =>  ' false ',         hasstatus  =>  ' false ',        start       =>  ' Service redis start ',         stop       =>  ' Service redis stop ',         require    => class["Redis::install"],         subscribe  => class["Redis::config"],     }}

3. Templates Catalogue

Master-redis.conf.erb

# redis master configuration file example daemonize yes pidfile / Var/run/redis.pid port 6379 timeout 0 tcp-keepalive 0 loglevel notice  logfile /var/log/redis.log databases 16 save 86400 1  Stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename  dump.rdbdir ./ slave-serve-stale-data yes slave-read-only yes  Repl-disable-tcp-nodelay no slave-priority 100 maxmemory 3gb maxmemory-policy  volatile-lru maxmemory-samples 3 appendonly no appendfilename  appendonly.aof appendfsync everysec no-appendfsync-on-rewrite no  auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb lua-time-limit 5000  slowlog-log-slower-than 10000 slowlog-max-len 1024 hash-max-ziplist-entries 512 hash-max-ziplist-value 64 list-max-ziplist-entries 512  list-max-ziplist-value 64 set-max-intset-entries 512 zset-max-ziplist-entries  128 zset-max-ziplist-value 64 activerehashing yes client-output-buffer-limit  normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60  Client-output-buffer-limit pubsub 32mb 8mb 60 aof-rewrite-incremental-fsync yes

Slave-redis.conf.erb

# redis slave configuration file example daemonize yes pidfile / Var/run/redis.pid port 6379 timeout 0 tcp-keepalive 0 loglevel notice  logfile /var/log/redis.log databases 16 save 86400 1  Stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename  dump.rdb dir ./ slaveof <%[email protected]_server %> 6379  slave-serve-stale-data yes slave-read-only yes repl-disable-tcp-nodelay no  slave-priority 100 maxmemory 3gb maxmemory-policy volatile-lru  Maxmemory-samples 3 appendonly no appendfilename appendonly.aof appendfsync  everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100  auto-aof-rewrite-min-size 64mb lua-time-limit 5000 slowlog-log-slower-than 10000 slowlog-max-len 1024 hash-max-ziplist-entries 512  hash-max-ziplist-value 64 list-max-ziplist-entries 512 list-max-ziplist-value  64 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value  64 activerehashing yes client-output-buffer-limit normal 0 0 0  Client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub  32mb 8mb 60 aof-rewrite-incremental-fsync yes

Iv. Configuration of Foreman

Refer to the first two articles

Main Library Parameters:

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from library parameters:

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five . redis command line management

[[email protected] ~]# redis-cli     #连接redis数据库redis127 .0.0.1:6379>   >ping                       #测试连接   >echo test                  #测试打印   >select 1                   #选择数据库0 ~15   > dbsize                    #返回当前数据库key数量   > info                      #获取服务器状态和一些统计信息   >  monitor                   #实时监听并返回redis服务器接收到的所有请求信息   > config get parameter     #获取一个redis配置参数信息, * = All   >  config set parameter value      #设置一个redis配置参数信息   >  config resetstat         #重置INFO命令的统计信息: Keyspace hit number, Number of Keyspace errors, number of processing commands, number of received connections, expired keys, etc.   > debug object key          #获取一个key的调试信息   > debug segfault            #制造一次服务器当机   > flushdb                   #删除当前数据库中的所有key   > flushall                  #删除所有数据库中所有key   > client list               #查看当前所有客户端状态   > shutdown                  #把数据同步保存到磁盘上, and turn off Redis services   > quit                      #退出连接

vi. Redis Desktop management tools

Http://redisdesktop.com/download

Https://github.com/uglide/RedisDesktopManager/wiki/Quick-Start

Redis DesktopManager is a fast, simple, cross-platform support Redis Desktop management tools, based on Qt 5 development, support through SSH Tunnel connection.

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Vii. use of the program

<?xml version= "1.0"?><configuration> <appSettings> <add key= "redis.readwritehosts" value= "1 0.188.1.40:6379 "/> <add key=" redis.readonlyhosts "value=" 10.188.1.41:6379 "/> </appSettings>< /configuration>

This article is from the "Moon Ching Xing Fei" blog, please be sure to keep this source http://ywzhou.blog.51cto.com/2785388/1754384

Puppet Self-coding module (iii): Redis