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| 第1行： |
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| =docker memcache for wiki at 201910=
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| ==install==
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| <pre>
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| docker run --name memcached -d -p 11211:11211 memcached:1.5-alpine --restart=always
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|
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| #如果已经启动了则可以使用如下命令：
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| $docker update --restart=always <CONTAINER ID>
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|
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|
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| memcached:<version>-alpine dokcer 官方的是没有密码的 安全只能是加防火墙或者下面这个不是官方的 在2020年，我自己打包了 算是安全了
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|
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| docker run -d --name memcached -p 11211:11211 -e MEMCACHED_USERNAME=memcache -e MEMCACHED_PASSWORD=123456 frodenas/memcached </pre>
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|
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| ==** securyty==
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|
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| https://github.com/memcached/memcached/wiki/SASLHowto
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|
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|
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|
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| ===iptables===
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| <pre>
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| 用iptables 因为本身安装docker后自带了呢
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|
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| 由这个得知
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|
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| iptables -L --line-numbers
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| Chain DOCKER (2 references)
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| num target prot opt source destination
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| 1 ACCEPT tcp -- anywhere 172.17.0.3 tcp dpt:http
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| 2 ACCEPT tcp -- anywhere 172.17.0.2 tcp dpt:11211
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| 3 ACCEPT tcp -- anywhere 172.18.0.3 tcp dpt:http
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| 4 ACCEPT tcp -- anywhere 172.18.0.2 tcp dpt:mysql
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|
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| 所有的iptable 应该 是 所有有http的去visa memcached memcached 不然会 登录有问题呢 在容器内部11211不通端口时 发现原因的
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|
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| iptables -I INPUT -p tcp -s 172.17.0.3 --dport 11211 -j ACCEPT
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| iptables -I INPUT -p tcp -s 172.18.0.3 --dport 11211 -j ACCEPT
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|
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| #本来是只允许10.138.132.61 对Memcache服务器的访问
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| iptables -I INPUT -p tcp -s 10.138.132.61 --dport 11211 -j ACCEPT
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| iptables -I INPUT -p tcp -s 10.138.132.61 --dport 11211 -j ACCEPT
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| iptables -A INPUT -p tcp -m tcp --dport 11211 -j DROP
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|
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| 最终在内部测试
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|
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| 容器# telnet 10.138.132.61 11211
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| Trying 10.138.132.61...
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| Connected to 10.138.132.61.
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| Escape character is '^]'.
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|
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| 相关
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| -- 查找所有规则
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| iptables -L INPUT --line-numbers
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|
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| -- 删除一条规则
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| iptables -D INPUT 11 （注意，这个11是行号，是iptables -L INPUT --line-numbers 所打印出来的行号）
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|
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|
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| 外网是11211不通 但是内网的呢 默认是通的
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|
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| root@-01:/data# telnet 172.18.0.1 11211
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| Connected to 172.18.0.1.
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| Escape character is '^]'.
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| ^]quit
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|
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| root@-01:/data# telnet 138.68.59.0 11211
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| Connected to 138.68.59.0.
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| Escape character is '^]'. </pre>
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|
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| [https://www.helplib.cn/yangchunyan110/how-to-install-and-secure-memcached-on-ubuntu-16-04 在Ubuntu 16.04上，如何安装和保护Memcached ]
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|
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| ===other===
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| docker run -it `docker ps -aqf "name=memcached"` /bin/sh
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|
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| # Stats
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| echo -e "stats" | nc localhost 11211
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|
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|
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| -l是监听的服务器IP地址，可以有多个地址
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|
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| 修改memcached的配置文件，修改15行OPTIONS中的-l 127.0.0.1， 添加你的内网IP
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|
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| elnet localhost 11211
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| flush_all
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|
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| 同样也可以使用：
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| echo "flush_all" | nc localhost 11211
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|
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| 使用flush_all 后并不是删除memcache上的key，而是置为过期
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|
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| </pre>
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|
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| =python client=
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| <pre>
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| 客户端连接实例
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|
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|
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| pip install python-binary-memcached
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|
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| #!/usr/bin/env python
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| # -*- coding: utf-8 -*-
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| import bmemcached
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| client = bmemcached.Client(('192.168.10.214:11211'), 'memcached', 'RV3kEjX5Ug5ufTKO')
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| print client.set('key', 'value11111111111')
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| print client.get('key')
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|
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|
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|
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| python 1.py
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| True
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| value11111111111
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|
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| </pre>
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| https://help.aliyun.com/document_detail/48437.html?spm=a2c4g.11186623.6.566.52fe6ac3bBPGYx
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|
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| =php 客户端连接=
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|
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| ==有密码的 php-memcached==
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| 详情见 [[Php连接有密码的memcached服务]]
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|
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| <pre>
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| <?php
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| $connect = new Memcached; //声明一个新的memcached链接
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| $connect->setOption(Memcached::OPT_COMPRESSION, false); //关闭压缩功能
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| $connect->setOption(Memcached::OPT_BINARY_PROTOCOL, true); //使用binary二进制协议
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| $connect->setOption(Memcached::OPT_TCP_NODELAY, true); //重要，php memcached有个bug，当get的值不存在，有固定40ms延迟，开启这个参数，可以避免这个bug
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| $connect->addServer('192.168.1.3', 11211); //添加memcached地址及端口号
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| $connect->setSaslAuthData('user', 'password');
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| $connect->set("hello", "world");
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| echo 'hello: ',$connect->get("hello");
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| $connect->quit();
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|
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| ?>
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| </pre>
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| https://help.aliyun.com/document_detail/48432.html
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|
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| ==没密码的 php-memcache==
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|
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| <pre>
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| <?php
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| $memcache = memcache_connect('192.168.10.214', 11211);//主机和mamcache的端口号
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|
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| if ($memcache) {
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|
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| //存入一个名字为str_key对应值为“String to store in memcached”的字符串。
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| $memcache->set("str_key", "String to store in memcached");
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|
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| $memcache->set("num_key", 123);
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| $array = Array('assoc'=>123, 345, 567);
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| $memcache->set("arr_key", $array);
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| //如果输入这些键名，就说明链接成功
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| var_dump($memcache->get('str_key'));
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| var_dump($memcache->get('num_key'));
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| var_dump($memcache->get('arr_key'));
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| }
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| else {
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| echo "Connection to memcached failed";//链接失败
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| }
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|
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| ?>
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|
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| </pre>
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|
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| =pull hub docker=
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| <pre>
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| docker pull memcached
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|
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| 启动memcached容器
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|
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| 使用下面的命令来创建一个新容器，可以根据你的需求修改这个例子。
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|
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| docker run --name memcached -d -p 45001:11211 memcached
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|
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| “csphere-memcached”容器，已启动，可使用45001端口连接使用。
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| 限制Memcached容器的内存
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|
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| 如果想要限制一个Docker容器进程可以使用的内存量，只要设置-m [memory amount]并标上限制就ok。
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|
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| 运行一个内存限制为256MB的容器：
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|
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| # sudo docker run -name csphere-memcached -m 256m -d -p 45001:11211 csphere-memcached
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|
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| 检查此容器内存限制是否设置成功，执行以下命令：
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|
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| # Example: docker inspect [container ID] | grep Memory sudo docker inspect csphere-memcached | grep Memory
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| </pre>
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|
| |
| =dockerfile=
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| https://github.com/evan886/docker-memcached
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|
| |
| 有空参考一下下面的，自己build一个喽
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|
| |
|
| =see also= | | =see also= |
| [https://www.ityoudao.cn/posts/lnmp-memcached-installation/ LNMP之Memcached服务器的安装部署] | | [https://jpanj.com/2019/fix-docker-install-MySQL-python/ 修复 Docker 安装 MySQL-python 失败的问题 ] |
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| [https://blog.csdn.net/qwssd/article/details/77198839 Linux下安装配置带SASL认证的Memcached]
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| | |
| [http://shiyanjun.cn/archives/873.html?utm_source=tuicool&utm_medium=referral Memcached服务器安装、配置、使用详解]
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| | |
| [https://blog.csdn.net/dengwenquan2011/article/details/6965991 Memcache基础教程]
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| | |
| | |
| [https://blog.csdn.net/lxf2323881/article/details/79273465 十分钟学会memcache，比你想象的要简单]
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| | |
| [https://hub.docker.com/_/memcached/ memcached on docker]
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| | |
| [http://dockone.io/article/868 如何构建Memcached Docker容器]
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| [https://blog.csdn.net/allus0918/article/details/50481927 memcached启动与清理缓存]
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|
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|
| [https://blog.csdn.net/dutsoft/article/details/71101809 Python项目使用memcached缓存]
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|
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| [[category:容器]] [[category:ops]] [[category: container]] | | [[category:python]] |