## **集群注意事項** ``` 1. 眾所周知，Redis集群create和reshard時，有密碼會報錯，所以部署時不配置密碼，部署后命令行配置密碼。再想擴容怎么辦？ 密碼置空，如果不設置密碼，可以以任意密碼登錄。 2. 下面操作前準備6臺服務器+2臺擴容服務器，每臺上面分別部署3.2，4.0，5.0版本的Redis，每個版本端口不同，最終效果是用CacheCloud管理起來 ``` ## **部署服務** ``` # 3.2 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"3.2.13","redis_port":"6379"}' --tags install_redis # 4.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"4.0.9","redis_port":"6380"}' --tags install_redis # 5.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"5.0.12","redis_port":"6381"}' --tags install_redis ``` ## **初始化配置文件** ``` # 3.2 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"3.2.13","redis_port":"6379"}' --tags init_redis_conf # 4.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"4.0.9","redis_port":"6380"}' --tags init_redis_conf # 5.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"5.0.12","redis_port":"6381"}' --tags init_redis_conf ``` ## **開啟集群配置** ``` # 3.2 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"3.2.13","redis_port":"6379"}' --tags turn_on_cluster # 4.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"4.0.9","redis_port":"6380"}' --tags turn_on_cluster # 5.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"5.0.12","redis_port":"6381"}' --tags turn_on_cluster ``` ## **啟動服務** ``` # 3.2 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"3.2.13","redis_port":"6379"}' --tags start_redis # 4.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"4.0.9","redis_port":"6380"}' --tags start_redis # 5.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"5.0.12","redis_port":"6381"}' --tags start_redis ``` ## 集群管理服務器安裝Ruby ``` ansible-playbook -i hosts/software_hosts software/ruby/ruby.yml -e "ruby_version=3.0.1" ``` ## 安裝redis-gem ``` # Redis 3.2 需要3.3.5版本 ansible-playbook -i hosts/software_hosts software/gemsoft/gemsoft.yml -e "gem_soft_name=redis gem_soft_version=4.2.5" ``` ## 創建集群 ``` /usr/local/redis-4.0.9/bin/redis-trib.rb create --replicas 1 192.168.88.61:6380 192.168.88.62:6380 192.168.88.63:6380 192.168.88.64:6380 192.168.88.65:6380 192.168.88.66:6380 ``` ## 集群配置成功后**設置密碼** ``` # 3.2 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"3.2.13","redis_port":"6379"}' --tags turn_on_local_auth,turn_on_master_auth # 4.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"4.0.9","redis_port":"6380"}' --tags turn_on_local_auth,turn_on_master_auth # 5.0 ansible-playbook -i hosts/redis_hosts redis/redis.yml -e '{"redis_version":"5.0.12","redis_port":"6381"}' --tags turn_on_local_auth,turn_on_master_auth ```