redis-ms: # redis classic primary & replica
  hosts: { 10.10.10.10: { redis_node: 1 , redis_instances: { 6379: { }, 6380: { replica_of: '10.10.10.10 6379' } } } }
  vars: { redis_cluster: redis-ms ,redis_password: 'redis.ms' ,redis_max_memory: 64MB }

redis-meta: # redis sentinel x 3
  hosts: { 10.10.10.11: { redis_node: 1 , redis_instances: { 26379: { } ,26380: { } ,26381: { } } } }
  vars:
    redis_cluster: redis-meta
    redis_password: 'redis.meta'
    redis_mode: sentinel
    redis_max_memory: 16MB
    redis_sentinel_monitor: # primary list for redis sentinel, use cls as name, primary ip:port
      - { name: redis-ms, host: 10.10.10.10, port: 6379 ,password: redis.ms, quorum: 2 }

redis-test: # redis native cluster: 3m x 3s
  hosts:
    10.10.10.12: { redis_node: 1 ,redis_instances: { 6379: { } ,6380: { } ,6381: { } } }
    10.10.10.13: { redis_node: 2 ,redis_instances: { 6379: { } ,6380: { } ,6381: { } } }
  vars: { redis_cluster: redis-test ,redis_password: 'redis.test' ,redis_mode: cluster, redis_max_memory: 32MB }

#redis_cluster:        <CLUSTER> # redis 集群名称，必需的身份参数
#redis_node: 1            <NODE> # redis 节点序列号，必需的节点整数 ID
#redis_instances: {}      <NODE> # 此 redis 节点上的 redis 实例定义
redis_fs_main: /data              # redis 主数据挂载点，默认为 `/data`
redis_exporter_enabled: true      # 在 redis 节点上安装 redis exporter？
redis_exporter_port: 9121         # redis exporter 监听端口，默认为 9121
redis_exporter_options: ''        # redis exporter 的 cli 参数和额外选项
redis_safeguard: false            # 防止清除正在运行的 redis 实例？
redis_clean: true                 # 初始化期间清除现有的 redis？
redis_rmdata: true                # 清除 redis 服务器时移除 redis 数据？
redis_mode: standalone            # redis 模式：standalone、cluster、sentinel
redis_conf: redis.conf            # redis 配置模板路径，除 sentinel 外
redis_bind_address: '0.0.0.0'     # redis 绑定地址，空字符串将使用主机 IP
redis_max_memory: 1GB             # 每个 redis 实例使用的最大内存
redis_mem_policy: allkeys-lru     # redis 内存逐出策略
redis_password: ''                # redis 密码，空字符串将禁用密码
redis_rdb_save: ['1200 1']        # redis rdb 保存指令，使用空列表禁用
redis_aof_enabled: false          # 启用 redis 追加文件？
redis_rename_commands: {}         # 重命名 redis 危险命令
redis_cluster_replicas: 1         # redis 集群中一个主节点的副本数量
redis_sentinel_monitor: []        # sentinel 主节点列表，仅在 sentinel 集群上工作

redis-test: # redis 原生集群：3m x 3s
  hosts:
    10.10.10.12: { redis_node: 1 ,redis_instances: { 6379: { } ,6380: { } ,6381: { } } }
    10.10.10.13: { redis_node: 2 ,redis_instances: { 6379: { } ,6380: { } ,6381: { } } }
  vars: { redis_cluster: redis-test ,redis_password: 'redis.test' ,redis_mode: cluster, redis_max_memory: 32MB }

redis_instances:
    6379: {}
    6380: { replica_of: '10.10.10.13 6379' }
    6381: { replica_of: '10.10.10.13 6379' }

{
  "keys": "op_keys",
  "flushdb": "op_flushdb",
  "flushall": "op_flushall",
  "config": "op_config"
}

redis_sentinel_monitor:  # redis sentinel 的主节点列表，使用 cls 作为名称，主节点 ip:port
  - { name: redis-src, host: 10.10.10.45, port: 6379 ,password: redis.src, quorum: 1 }
  - { name: redis-dst, host: 10.10.10.48, port: 6379 ,password: redis.dst, quorum: 1 }

# 在组 <cluster> 上初始化所有 redis 实例
./redis.yml -l <cluster>      # 初始化 redis 集群

# 初始化 redis 节点
./redis.yml -l 10.10.10.10    # 初始化 redis 节点

# 初始化一个特定的 redis 实例 10.10.10.11:6379
./redis.yml -l 10.10.10.11 -e redis_port=6379 -t redis

bin/redis-add redis-ms          # 创建 redis 集群 'redis-ms'
bin/redis-add 10.10.10.10       # 创建 redis 节点 '10.10.10.10'
bin/redis-add 10.10.10.10 6379  # 创建 redis 实例 '10.10.10.10:6379'

# 移除集群 `redis-test`
redis-rm.yml -l redis-test

# 移除集群 `redis-test`，并卸载软件包
redis-rm.yml -l redis-test -e redis_uninstall=true

# 移除 redis 节点 10.10.10.13 上的所有实例
redis-rm.yml -l 10.10.10.13

# 移除一个特定的实例 10.10.10.13:6379
redis-rm.yml -l 10.10.10.13 -e redis_port=6379

bin/redis-rm redis-ms          # 移除 redis 集群 'redis-ms'
bin/redis-rm 10.10.10.10       # 移除 redis 节点 '10.10.10.10'
bin/redis-rm 10.10.10.10 6379  # 移除 redis 实例 '10.10.10.10:6379'

./redis.yml -l <cluster> -t redis_config,redis_launch

$ redis-cli -h 10.10.10.10 -p 6379 # <--- 使用主机和端口连接
10.10.10.10:6379> auth redis.ms    # <--- 使用密码验证
OK
10.10.10.10:6379> set a 10         # <--- 设置一个键
OK
10.10.10.10:6379> get a            # <--- 获取一个键
"10"

redis-benchmark -h 10.10.10.13 -p 6379

# 将 redis 实例提升为主节点
> REPLICAOF NO ONE
"OK"

# 使 redis 实例成为另一个实例的副本
> REPLICAOF 127.0.0.1 6799
"OK"

# 对于每个 sentinel，使用以下方式将 redis 主节点添加到 sentinel：
$ redis-cli -h 10.10.10.11 -p 26379 -a redis.meta
10.10.10.11:26379> SENTINEL MONITOR redis-ms 10.10.10.10 6379 1
10.10.10.11:26379> SENTINEL SET redis-ms auth-pass redis.ms      # 如果启用了身份验证，必须配置密码

redis_sentinel_monitor: # redis sentinel 的主节点列表，使用 cls 作为名称，主节点 ip:port
  - { name: redis-src, host: 10.10.10.45, port: 6379 ,password: redis.src, quorum: 1 }
  - { name: redis-dst, host: 10.10.10.48, port: 6379 ,password: redis.dst, quorum: 1 }

./redis.yml -l redis-meta -t redis-ha   # 如果您的 sentinel 集群有不同的名称，请替换 redis-meta

redis_node        : init redis node
  - redis_install : install redis & redis_exporter
  - redis_user    : create os user redis
  - redis_dir     : create redis redis fhs
redis_exporter    : config and launch redis_exporter
  - redis_exporter_config  : generate redis_exporter config
  - redis_exporter_launch  : launch redis_exporter
redis_instance    : config and launch redis cluster/node/instance
  - redis_check   : check redis instance existence
  - redis_clean   : purge existing redis instance
  - redis_config  : generate redis instance config
  - redis_launch  : launch redis instance
redis_register    : register redis to prometheus
redis_ha          : setup redis sentinel
redis_join        : join redis cluster

- register       : remove monitor target from prometheus
- redis_exporter : stop and disable redis_exporter
- redis          : stop and disable redis cluster/node/instance
- redis_data     : remove redis data (rdb, aof)
- redis_pkg      : uninstall redis & redis_exporter packages

#==============================================================#
#                         Error                                #
#==============================================================#
# redis down triggers a P0 alert
- alert: RedisDown
  expr: redis_up < 1
  for: 1m
  labels: { level: 0, severity: CRIT, category: redis }
  annotations:
    summary: "CRIT RedisDown: {{ $labels.ins }} {{ $labels.instance }} {{ $value }}"
    description: |
      redis_up[ins={{ $labels.ins }}, instance={{ $labels.instance }}] = {{ $value }} == 0
      http://g.pigsty/d/redis-instance?from=now-5m&to=now&var-ins={{$labels.ins}}

# redis reject connection in last 5m
- alert: RedisRejectConn
  expr: redis:ins:conn_reject > 0
  labels: { level: 0, severity: CRIT, category: redis }
  annotations:
    summary: "CRIT RedisRejectConn: {{ $labels.ins }} {{ $labels.instance }} {{ $value }}"
    description: |
      redis:ins:conn_reject[cls={{ $labels.cls }}, ins={{ $labels.ins }}][5m] = {{ $value }} > 0
      http://g.pigsty/d/redis-instance?from=now-10m&to=now&viewPanel=88&fullscreen&var-ins={{ $labels.ins }}



#==============================================================#
#                         Latency                              #
#==============================================================#
# redis avg query response time > 160 µs
- alert: RedisRTHigh
  expr: redis:ins:rt > 0.00016
  for: 1m
  labels: { level: 1, severity: WARN, category: redis }
  annotations:
    summary: "WARN RedisRTHigh: {{ $labels.cls }} {{ $labels.ins }}"
    description: |
      pg:ins:query_rt[cls={{ $labels.cls }}, ins={{ $labels.ins }}] = {{ $value }} > 160µs
      http://g.pigsty/d/redis-instance?from=now-10m&to=now&viewPanel=97&fullscreen&var-ins={{ $labels.ins }}



#==============================================================#
#                        Saturation                            #
#==============================================================#
# redis cpu usage more than 70% for 1m
- alert: RedisCPUHigh
  expr: redis:ins:cpu_usage > 0.70
  for: 1m
  labels: { level: 1, severity: WARN, category: redis }
  annotations:
    summary: "WARN RedisCPUHigh: {{ $labels.cls }} {{ $labels.ins }}"
    description: |
      redis:ins:cpu_all[cls={{ $labels.cls }}, ins={{ $labels.ins }}] = {{ $value }} > 60%
      http://g.pigsty/d/redis-instance?from=now-10m&to=now&viewPanel=43&fullscreen&var-ins={{ $labels.ins }}

# redis mem usage more than 70% for 1m
- alert: RedisMemHigh
  expr: redis:ins:mem_usage > 0.70
  for: 1m
  labels: { level: 1, severity: WARN, category: redis }
  annotations:
    summary: "WARN RedisMemHigh: {{ $labels.cls }} {{ $labels.ins }}"
    description: |
      redis:ins:mem_usage[cls={{ $labels.cls }}, ins={{ $labels.ins }}] = {{ $value }} > 80%
      http://g.pigsty/d/redis-instance?from=now-10m&to=now&viewPanel=7&fullscreen&var-ins={{ $labels.ins }}

#==============================================================#
#                         Traffic                              #
#==============================================================#
# redis qps more than 32000 for 5m
- alert: RedisQPSHigh
  expr: redis:ins:qps > 32000
  for: 5m
  labels: { level: 2, severity: INFO, category: redis }
  annotations:
    summary: "INFO RedisQPSHigh: {{ $labels.cls }} {{ $labels.ins }}"
    description: |
      redis:ins:qps[cls={{ $labels.cls }}, ins={{ $labels.ins }}] = {{ $value }} > 16000
      http://g.pigsty/d/redis-instance?from=now-10m&to=now&viewPanel=96&fullscreen&var-ins={{ $labels.ins }}