設計:多redis啓動只需要一個配置文件和啓動腳本即可,而啓動程序是不變的,那麼我可以安裝一個redis,以/usr/local/redis目錄爲例,在目錄下生成基於應用的redis,下發對應的腳本到/etc/init.d/,而配置文件做成模板化,變化參數通過pillar來渲染,例如log name、pid name、data directory。
上述設計完成,那麼開工,Saltstack安裝,驗證我就不演示啦。直接上代碼
pillar
redis-server1: - name: redis-s-user port: 7379 - name: redis-s-group port: 7479
定義不同端口和服務名,在SLS文件中渲染。
sls
redis: pkg.installed: - name: redis {% if 'redis-server1' in pillar %} {% for eachredis in pillar['redis-server1'] %} /usr/local/redis/` eachredis`.`name `/redis.conf: file.managed: - source: salt://redis/files/redis.conf - makedirs: True - template: jinja - defaults: name: ` eachredis`.`name ` port: ` eachredis`.`port ` - require: - pkg: redis {% endfor %} {% endif %} {% if 'redis-server1' in pillar %} {% for eachredis in pillar['redis-server1'] %} /etc/init.d/` eachredis`.`name `: file.managed: - source: salt://redis/files/test - mode: 755 - require: - pkg: redis - template: jinja - defaults: name: ` eachredis`.`name ` service.running: - name: ` eachredis`.`name ` - enable: True - watch: - pkg: redis {% endfor %} {% endif %}
1.安裝redis服務,包是打的RPM包,包的結構就頂樓 - -
2.下發配置文件,配置文件需要指定不同端口、路徑名。所以提供2個值。
3.下發啓動腳本,redis啓動只需要redis-server指定不同配置文件,所以這裏只給了一個name值
redis啓動腳本
#!/bin/bash # Init file for redis # chkconfig: 2345 80 12 # description: redis daemon # processname: redis # config: /usr/local/redis/redis.conf # pidfile: /var/run/redis.pid source /etc/init.d/functions BIN="/usr/local/redis/bin" CONF="/usr/local/redis/` name `/redis.conf" PIDFILE="/var/run/` name `.pid" ### Read configuration [ -r "$SYSCONFIG" ] && source "$SYSCONFIG" RETVAL=0 prog="redis-server" desc="Redis Server" start() { if [ -e $PIDFILE ];then echo "$desc already running...." exit 1 fi echo -n $"Starting $desc: " daemon $BIN/$prog $CONF RETVAL=$? echo [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog return $RETVAL } stop() { echo -n $"Stop $desc: " kill `cat $PIDFILE` RETVAL=$? echo [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog $PIDFILE return $RETVAL } restart() { stop start } case "$1" in start) start ;; stop) stop ;; restart) restart ;; condrestart) [ -e /var/lock/subsys/$prog ] && restart RETVAL=$? ;; status) status $PIDFILE RETVAL=$? ;; *) echo $"Usage: $0 {start|stop|restart|condrestart|status}" RETVAL=1 esac exit $RETVAL
redis配置文件
daemonize yes pidfile /var/run/` name `.pid port ` port ` timeout 0 tcp-keepalive 0 loglevel warning logfile /opt/log/redis/` name `.log databases 16 #save 900 1 #save 300 10 #save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename ` name `.rdb dir /usr/local/redis/` name ` slave-serve-stale-data yes slave-read-only yes repl-disable-tcp-nodelay no slave-priority 100 appendonly yes appendfilename ` name `.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 128 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 hz 10 aof-rewrite-incremental-fsync yes
那麼現在,只需要同步下去即可。
salt 'test' state.sls redis.install -> redis.install = /srv/salt/redis/install.sls內容就是上面的sls
內容是經過驗證過的,如果有小細節地方麻煩給我留言,及時更正!!
既然能實現多實例redis部署,那麼其他任何服務都是可以,關鍵在於這麼使用。
順便貼個service.running過程。方便大家理解。之前在部署時,出現客戶端手工執行正確,但saltstack調用死活都不成功,告訴我已運行,且需要個狀態。
其實這是init腳本缺了個status函數,saltstack運行service.running先是執行status,判斷服務是否正在運行,未運行,那麼立即start,而探測已運行,則報服務已運行,需要個狀態
啓動過程