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微服务(MicroServices)资料整理

微服务单篇文章

解析微服务架构

 

微服务框架

Golang

  • https://github.com/go-kit/kit
  • https://github.com/micro/micro
  • https://github.com/NYTimes/gizmo
  • 直接使用gRPC

微服务实战

英文

中文

RPC REST相关

安全

实践

其他

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乐视电视超3 x40 蓝牙连接 小米电视音响2代

步骤1  乐视电视开机, 小米电视音响2开机(ps:低音炮和Soundbar音响之间无线自动连接)  

步骤2 乐视电视遥控器>设置>配件>蓝牙设置>蓝牙开启>找到 小米家庭音响 配对

步骤3 乐视电视遥控器>设置>声音>扬声器>选择 外接音响 (ps:电视的声音已经输出到小米音响上了, 乐遥控器上的声音控制无效 按键会显示 请在外接音响上调节音量)

小米电视音响2代 音量调节方法

① 直接在Soundbar上物理按键调节音量

② 手机APP上调节 音量和低音炮  安卓下载网址 http://app.mi.com/detail/64097?ref=search 

在小米电视音响和乐视电视已经连接的情况下,手机上的 小米家庭音响 app 可以控制调整小米电视音响的音量和低音炮

小米电视音响

小米电视音响

 

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让Vagrant在Windwos下支持使用NFS/SMB共享文件夹从而解决目录共享IO缓慢的问题

自己的本是mbp vagrant使用nfs共享文件夹,所以使用一切ok,但是公司的开发环境是windows10。
windows下是有些问题的,就是在windows下默认的虚拟机共享文件夹的方式,磁盘IO效率实在是太低了。
表现情况,vagrant ssh 在/vagrant/project 下敲命令都卡啊卡,表现的和连接美国vps一样!
执行php程序,从调试来看,花费在文件IO上的时间实在是有点长,能达到1-3秒
vagrant在windows共享文件夹实在是太慢了,亏我忍受那么久。
一直在忍啊忍啊,今天实在是受不了,想要解决掉这个问题,想办法让windows支持NFS或者samb的方式共享文件夹给vagrant虚拟机
如果能支持NFS就当然是最好。
找到vagrant-winnfsd这个vagrant的插件
发现新版也支持Windows下SMB的方式了

NFS方式使用vagrant-winnfsd

安装vagrant 插件 vagrant-winnfsd

$ vagrant plugin install vagrant-winnfsd
但是这样安装会出现以下错误

Installing the 'vagrant-winnfsd' plugin. This can take a few minutes...
Bundler, the underlying system Vagrant uses to install plugins,
reported an error. The error is shown below. These errors are usually
caused by misconfigured plugin installations or transient network
issues. The error from Bundler is:

An error occurred while installing childprocess (0.5.8), and Bundler cannot continue.
Make sure that `gem install childprocess -v '0.5.8'` succeeds before bundling.

Warning: this Gemfile contains multiple primary sources. Using `source` more than once without a block is a security risk, and may result in installing unexpected gems. To resolve this warning, use a block to indicate which gems should come from the secondary source. To upgrade this warning to an error, run `bundle config disable_multisource true`.Gem::RemoteFetcher::FetchError: Errno::ECONNABORTED: An established connection was aborted by the software in your host machine. - SSL_connect (https://rubygems.org/gems/childprocess-0.5.8.gem)

看来是缺少childprocess-0.5.8.gem这个东西
索性把需要的包都下载到本地,然后本地安装
https://rubygems.org/gems/childprocess-0.5.8.gem
https://rubygems.org/gems/vagrant-winnfsd-1.1.0.gem
然后

vagrant plugin install childprocess-0.5.8.gem
vagrant plugin install vagrant-winnfsd-1.1.0.gem

看一看安装好的插件

$ vagrant plugin list
childprocess (0.5.8)
  - Version Constraint: 0.5.8
vagrant-share (1.1.4, system)
vagrant-winnfsd (1.1.0)
  - Version Constraint: 1.1.0

配置

编辑项目下的Vagrantfile文件
网络设置为私有,仅宿主机

config.vm.network "private_network", ip: "192.168.33.10"
# config.vm.network "private_network", type: "dhcp"

在Vagrant.configure(‘2’) do |config| 中加入

Vagrant.configure('2') do |config|
  # other config here
  config.vm.network "private_network", ip: "192.168.33.10"

  #winfsd
  config.winnfsd.logging = "on"
  config.winnfsd.uid = 1
  config.winnfsd.gid = 1
  config.vm.synced_folder "./", "/vagrant", type: "nfs"
end

SMB方式Windows共享方式

配置

Vagrant.configure('2') do |config|
  # other config here
  config.vm.network "private_network", ip: "192.168.33.10"

  #SMB
  config.vm.synced_folder "./", "/vagrant", type: "smb",
      smb_username: "母鸡Windows帐号",
      smb_password: "母鸡Windows密码",
      owner: "www",
      group: "www"
      #mount_options: ["dmode=775,fmode=664"]
end

启动vagrant虚拟机, 注意启动过程当中需要输入windwos系统的帐号和密码

d:\projects>vagrant up
Bringing machine 'default' up with 'virtualbox' provider...
==> default: Fixed port collision for 22 => 2222. Now on port 2200.
==> default: Preparing SMB shared folders...
    default: You will be asked for the username and password to use for the SMB
    default: folders shortly. Please use the proper username/password of your
    default: Windows account.
    default:
    default: Username: administrator
    default: Password (will be hidden):
==> default: Clearing any previously set network interfaces...
==> default: Preparing network interfaces based on configuration...
    default: Adapter 1: nat
    default: Adapter 2: hostonly
==> default: Forwarding ports...
    default: 22 => 2200 (adapter 1)
==> default: Booting VM...
==> default: Waiting for machine to boot. This may take a few minutes...
    default: SSH address: 127.0.0.1:2200
    default: SSH username: vagrant
    default: SSH auth method: private key
    default: Warning: Connection timeout. Retrying...
    default: Warning: Connection timeout. Retrying...
    default: Warning: Remote connection disconnect. Retrying...
==> default: Machine booted and ready!
==> default: Checking for guest additions in VM...
    default: The guest additions on this VM do not match the installed version of
    default: VirtualBox! In most cases this is fine, but in rare cases it can
    default: prevent things such as shared folders from working properly. If you see
    default: shared folder errors, please make sure the guest additions within the
    default: virtual machine match the version of VirtualBox you have installed on
    default: your host and reload your VM.
    default:
    default: Guest Additions Version: 4.3.26
    default: VirtualBox Version: 5.0
==> default: Configuring and enabling network interfaces...
==> default: Mounting SMB shared folders...
    default: D:/projects => /vagrant
==> default: Machine already provisioned. Run `vagrant provision` or use the `--provision`
==> default: flag to force provisioning. Provisioners marked to run always will still run.

d:\projects>

发现vagrant开启了一个名称为c30268623ba3dedeaa9f098b570dca21的共享
这个地方有个安全大坑,共享权限居然是Everyone!所以注意母鸡Windows上是否有其他帐号能访问!
我把c30268623ba3dedeaa9f098b570dca21本共享的权限改了,发现vagrant还是会把权限设置为Everyone
如果有开启其他普通帐号,guest什么的这里有安全隐患

C:\Users\Administrator>net share

共享名       资源                            注解

-------------------------------------------------------------------------------
IPC$                                         远程 IPC
c30268623ba3dedeaa9f098b570dca21
             D:\projects
命令成功完成。

为了防止smb共享剔除不活动的连接需要执行以下命令让系统不要自动踢掉不活动的连接
net config server /autodisconnect:-1

vagrant不会自动删除共享,要删除共享使用命令
net share c30268623ba3dedeaa9f098b570dca21 /delete

参考资料

vagrant-winnfsd项目源码
开启 NFS 文件系统提升 Vagrant 共享目录的性能
NFS for Vagrant on Windows
Vagrant SYNCED FOLDERS
Vagrant 使用 samba 共享文件夹

by ·一条评论

nginx tengine openresty之间是什么关系?

tengine相当于是nginx的二次开发,做了一些改动,增加了独有的一些功能
openresty是nginx的增强版,扩展了很多模块,特色是引入了lua支持模块,当然还有非常多个其他的模块,nginx核心使用的是原版nginx,并且使用的较新的mainline版本,比如1.9.3.2中包含的nginx版本为nginx-1.9.3 mainline

编译安装openresty

wget https://openresty.org/download/openresty-1.13.6.1.tar.gz
tar zxvf openresty-1.13.6.1.tar.gz
cd openresty-1.13.6.1
#如果已经安装过nginx可以看看原来的编译参数,这里增加上去
#/usr/local/nginx/sbin/nginx -V
./configure --user=www --group=www --prefix=/usr/local --with-luajit --with-http_iconv_module  --with-http_stub_status_module --with-http_ssl_module --with-http_v2_module --with-http_gzip_static_module --with-http_sub_module
make
make install
# install后原来的 /usr/local/nginx/sbin/nginx 会被cp 成  /usr/local/nginx/sbin/nginx.old
/usr/local/nginx/sbin/nginx -v
#检查是否安装成功
/usr/local/nginx/sbin/nginx -t
#测试配置文件是否通过

/etc/init.d/nginx reload

# 其他可选编译参数
# GeoIP 
--with-http_geoip_module

nginx lua waf 网站应用防火墙

https://github.com/alexazhou/VeryNginx
https://github.com/starjun/openstar
https://github.com/loveshell/ngx_lua_waf
https://github.com/nixuehan/Belial
https://github.com/Hevienz/WizWAF
https://github.com/p0pr0ck5/FreeWAF
https://github.com/search?l=lua&q=waf&type=Repositories&utf8=%E2%9C%93

by ·2条评论

mysql中databases库和tables表中字符集 utf8 和utf8mb4 有什么区别?

可以简单的理解 utf8mb4 是目前最大的一个字符编码,支持任意文字.

那么utf8mb4比utf8多了什么的呢?
多了emoji编码支持.
如果实际用途上来看,可以给要用到emoji的库或者说表,设置utf8mb4.
比如评论,文章什么的要支持emoji可以用到.

建议普通表使用utf8 如果这个表需要支持emoji就使用utf8mb4

新建mysql库或者表的时候还有一个排序规则
utf8_unicode_ci比较准确，utf8_general_ci速度比较快。通常情况下 utf8_general_ci的准确性就够我们用的了，在我看过很多程序源码后，发现它们大多数也用的是utf8_general_ci，所以新建数据 库时一般选用utf8_general_ci就可以了
如果是utf8mb4那么对应的就是 utf8mb4_general_ci utf8mb4_unicode_ci

by ·2条评论

用PECL自动安装Redis扩展、Swoole扩展

yum install GeoIP GeoIP-devel GeoIP-data
pecl install igbinary
pecl install redis
pecl install swool

编译安装PHP7并安装Redis扩展Swoole扩展

在编译php7的机器上已经有编译安装过php5.3以上的版本,从而依赖库都有了

本php7是编译成fpm-php 使用的,

如果是apache那么编译参数应该为

--with-apxs2=/usr/local/apache/bin/apxs

编译安装php7

PHP_VERSION=7.2.6
wget -c http://www.php.net/distributions/php-$PHP_VERSION.tar.gz
tar zxvf php-$PHP_VERSION.tar.gz
cd php-$PHP_VERSION

./configure \
--prefix=/usr/local/php \
--with-config-file-path=/usr/local/php/etc \
--enable-fpm \
--with-fpm-user=www \
--with-fpm-group=www \
--with-mysqli=mysqlnd \
--with-pdo-mysql=mysqlnd \
--with-iconv-dir \
--with-freetype-dir=/usr/local/freetype \
--with-jpeg-dir -\
-with-png-dir \
--with-zlib \
--with-libxml-dir=/usr \
--enable-xml \
--disable-rpath \
--enable-bcmath \
--enable-shmop \
--enable-sysvsem \
--enable-inline-optimization \
--with-curl \
--enable-mbregex \
--enable-mbstring \
--enable-ftp \
--with-gd \
--with-openssl \
--with-mhash \
--enable-pcntl \
--enable-sockets \
--with-xmlrpc \
--enable-zip \
--enable-soap \
--with-gettext \
--disable-fileinfo \
--enable-opcache

make ZEND_EXTRA_LIBS='-liconv'

make install

    echo "Copy new php configure file..."
    mkdir -p /usr/local/php/{etc,conf.d}
    \cp php.ini-production /usr/local/php/etc/php.ini

    # php extensions
    echo "Modify php.ini......"
    sed -i 's/post_max_size =.*/post_max_size = 50M/g' /usr/local/php/etc/php.ini
    sed -i 's/upload_max_filesize =.*/upload_max_filesize = 50M/g' /usr/local/php/etc/php.ini
    sed -i 's/;date.timezone =.*/date.timezone = PRC/g' /usr/local/php/etc/php.ini
    sed -i 's/short_open_tag =.*/short_open_tag = On/g' /usr/local/php/etc/php.ini
    sed -i 's/;cgi.fix_pathinfo=.*/cgi.fix_pathinfo=0/g' /usr/local/php/etc/php.ini
    sed -i 's/max_execution_time =.*/max_execution_time = 300/g' /usr/local/php/etc/php.ini
    sed -i 's/disable_functions =.*/disable_functions = passthru,exec,system,chroot,chgrp,chown,shell_exec,popen,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,stream_socket_server/g' /usr/local/php/etc/php.ini

ln -sf /usr/local/php/bin/php /usr/bin/php
ln -sf /usr/local/php/bin/phpize /usr/bin/phpize
ln -sf /usr/local/php/bin/pear /usr/bin/pear
ln -sf /usr/local/php/bin/pecl /usr/bin/pecl
ln -sf /usr/local/php/sbin/php-fpm /usr/bin/php-fpm
pear config-set php_ini /usr/local/php/etc/php.ini
pecl config-set php_ini /usr/local/php/etc/php.ini

cd ..

编译安装php7的redis扩展支持

wget -c https://github.com/phpredis/phpredis/archive/php7.zip
unzip php7.zip

cd phpredis-php7
/usr/local/php7/bin/phpize
./configure --with-php-config=/usr/local/php7/bin/php-config
make
make install
cd ..

/usr/local/php7/etc/php.ini
中加入
extension=redis.so

编译安装php7的swoole

wget -c https://github.com/swoole/swoole-src/archive/swoole-1.7.21-stable.tar.gz
tar zxvf swoole-1.7.21-stable.tar.gz
cd swoole-src-swoole-1.7.21-stable/
/usr/local/php7/bin/phpize
./configure --with-php-config=/usr/local/php7/bin/php-config
make
make install
cd ..

/usr/local/php7/etc/php.ini
中加入
extension=swoole.so