Predixy的docker化
概述
当前已有一套redis cluster的集群，但是fs中的hiredis只能配置单实例redis。
AI了一下方案，可以使用redis的proxy组件来实现从hiredis到redis cluster的互通。
代码地址：https://github.com/joyieldInc/predixy
Predixy特性介绍：https://github.com/joyieldInc/predixy/blob/master/README_CN.md
环境
CentOS 7.9
下载
下载源码，使用1.0.5版本，足以满足我们的版本需求，如果要对接redis cluster7.0以上，需要更新的predixy版本。
git clone -b 1.0.5 https://github.com/joyieldInc/predixy.git predixy.1.0.5
dockerfile
dockerfile文件内容如下，dockerfile文件和源码目录“predixy.1.0.5”在同一目录下。
FROM centos:7WORKDIR /rootADD ./predixy.1.0.5 /root/predixy.1.0.5
COPY ./CentOS-Base.repo /etc/yum.repos.d/
COPY ./CentOS-SCLo-scl.repo /etc/yum.repos.d/
COPY ./CentOS-SCLo-scl-rh.repo /etc/yum.repos.d/
COPY ./epel-7.repo /etc/yum.repos.d/RUN cd /root/ \&& yum -y update \# && yum install -y devtoolset-9-gcc \&& yum install -y gcc-c++ libstdc++-devel libstdc++-static \&& yum install -y make \&& cd /root/predixy.1.0.5/ \&& make \&& cp ./src/predixy /usr/local/bin/ \&& cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \&& yum -y autoremove \&& yum clean all \&& rm -rf /var/cache/yum \&& rm -rf /root/predixy.1.0.5 \&& rm -rf /usr/share/icons /usr/share/themes/ /usr/share/doc /usr/share/man VOLUME ["/usr/local/predixy/conf", "/usr/local/predixy/log"]CMD /usr/local/bin/predixy /usr/local/predixy/conf/predixy.conf运行命令，创建docker镜像。
sudo docker build --no-cache -t 10.55.55.136:5000/zr/centos.7-predixy.1.0.5-release:v1.1 .
配置
配置文件放在宿主机，方便修改，创建如下目录。
sudo mkdir -p /usr/local/predixy/conf
配置文件主要修改2个，predixy.conf和cluster.conf。
predixy.conf 主要配置如下。
Name Predixy136
Bind 10.55.55.136:7777
WorkerThreads 4
MaxMemory 0
ClientTimeout 0
Log /usr/local/predixy/log/predixy.log
LogRotate 1d
LogVerbSample 0
LogDebugSample 0
LogInfoSample 10000
LogNoticeSample 1
LogWarnSample 1
LogErrorSample 1
Include cluster.conf
Include latency.conf
cluster.conf 主要配置如下。
ClusterServerPool {
MasterReadPriority 60
StaticSlaveReadPriority 50
DynamicSlaveReadPriority 50
RefreshInterval 1
ServerTimeout 1
ServerFailureLimit 10
ServerRetryTimeout 1
KeepAlive 120
Servers {
+ 10.55.55.101:7000
+ 10.55.55.101:7001
+ 10.55.55.102:7000
+ 10.55.55.102:7001
+ 10.55.55.103:7000
+ 10.55.55.103:7001
}
}
启动
编写docker-compose.yml，启动docker容器。
docker-compose.yml内容如下。
services:
predixy:
image: 10.55.55.136:5000/zr/centos.7-predixy.1.0.5-release:v1.1
container_name: centos.7-predixy.1.0.5-1.1
volumes:
- /usr/local/predixy/conf:/usr/local/predixy/conf
- /usr/local/predixy/log:/usr/local/predixy/log
working_dir: /root
command: ["/usr/local/bin/predixy", "/usr/local/predixy/conf/predixy.conf"]
restart: unless-stopped
# privileged: true
network_mode: "host"
logging:
driver: "none"
ulimits:
nproc: 65535
nofile:
soft: 40000
hard: 40000
启动命令。
sudo docker-compose up -d
查看进程和端口，运行正常。
测试
在fs的api命令行界面查询。
freeswitch@as137> limit_usage hiredis default test2
0
2025-04-22 14:38:14.099856 [DEBUG] hiredis_profile.c:61 hiredis: waiting for [10.55.55.136, 7777]
2025-04-22 14:38:14.099856 [INFO] hiredis_profile.c:65 hiredis: attempting[10.55.55.136, 7777]
2025-04-22 14:38:14.099856 [DEBUG] hiredis_profile.c:68 hiredis: connection success[10.55.55.136, 7777]
2025-04-22 14:38:14.099856 [DEBUG] hiredis_profile.c:206 hiredis: get test2
2025-04-22 14:38:14.099856 [DEBUG] hiredis_profile.c:52 hiredis: release back to pool [10.55.55.136, 7777]
查看predixy的log日志。
2025-04-22 14:38:14.107827 N Handler.cpp:371 h 1 accept c 10.55.55.137:52856 34 assign to h 0
2025-04-22 14:38:14.107905 D Handler.cpp:511 h 0 c 10.55.55.137:52856 34 handle req 299 get test2
2025-04-22 14:38:14.107928 D ServerGroup.cpp:68 server group 8f75cec1c6ab2e4ab7dff125d5206a391c4ae620 for req 299 get server 10.55.55.102:7000
2025-04-22 14:38:14.107942 D ConnectConnection.cpp:71 h 0 s 10.55.55.102:7000 13 writev 1
2025-04-22 14:38:14.108427 D ConnectConnection.cpp:212 h 0 s 10.55.55.102:7000 13 create res 299 match req 299
2025-04-22 14:38:14.108462 D Handler.cpp:779 h 0 s 10.55.55.102:7000 13 req 299 get test2 res 299 Str
2025-04-22 14:38:14.108481 D AcceptConnection.cpp:78 h 0 c 10.55.55.137:52856 34 req 299 fill res 299
2025-04-22 14:38:14.108496 D AcceptConnection.cpp:97 h 0 c 10.55.55.137:52856 34 writev 1
总结
利用predixy作为代理，实现从hiredis到redis cluster的查询中转。
代理的性能和稳定性有待进一步测试确认。
空空如常
求真得真