1、相关redis参数：
2、/templates/redis.conf配置相关参数：
daemonize yes
pidfile /var/run/redis_{{ redis_port }}.pid
port {{ redis_port }}
bind {{ ansible_default_ipv4.address }}
timeout 0
tcp-keepalive 0
loglevel notice
logfile {{ redis_log_dir }}/redis_{{ redis_port }}.log
databases 16
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename redis_{{ redis_port }}.rdb
dir {{ redis_db_dir }}
{% if redis_master_ip is defined %}
slaveof {{ redis_master_ip }} {{ redis_master_port }}
{% endif %}
slave-serve-stale-data yes
repl-disable-tcp-nodelay no
slave-priority 100
appendonly no
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
aof-rewrite-incremental-fsync yes
3、tasks任务执行：复制压缩包到目标主机，创建根目录，解压到根目录，复制模板文件，做软链接，启动服务。
4、roles完整执行步骤：
下载roles: https://pan.baidu.com/s/1B5ec6CExoRj_pjvzVtlrhw
执行：ansible-playbook /你的路径/redis_install.yml --extra-vars "host=你的主机群组 user=root"
