Python-100-Days/Day91-100/98.项目部署上线和性能调优.md

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## 项目部署上线指南
### 准备上线
1. 上线前的检查工作。
```Shell
python manage.py check --deploy
```
2. 将DEBUG设置为False并配置ALLOWED_HOSTS。
```Python
DEBUG = False
ALLOWED_HOSTS = ['*']
```
3. 安全相关的配置。
```Python
# 保持HTTPS连接的时间
SECURE_HSTS_SECONDS = 3600
SECURE_HSTS_INCLUDE_SUBDOMAINS = True
SECURE_HSTS_PRELOAD = True
# 自动重定向到安全连接
SECURE_SSL_REDIRECT = True
# 避免浏览器自作聪明推断内容类型
SECURE_CONTENT_TYPE_NOSNIFF = True
# 避免跨站脚本攻击
SECURE_BROWSER_XSS_FILTER = True
# COOKIE只能通过HTTPS进行传输
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True
# 防止点击劫持攻击手段 - 修改HTTP协议响应头
# 当前网站是不允许使用<iframe>标签进行加载的
X_FRAME_OPTIONS = 'DENY'
```
4. 敏感信息放到环境变量或文件中。
```Python
SECRET_KEY = os.environ['SECRET_KEY']
DB_USER = os.environ['DB_USER']
DB_PASS = os.environ['DB_PASS']
REDIS_AUTH = os.environ['REDIS_AUTH']
```
### 更新服务器Python环境到3.x
> 说明:如果需要清除之前的安装,就删除对应的文件和文件夹即可
1. 安装底层依赖库。
```Shell
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yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel libdb4-devel libpcap-devel xz-devel libffi-devel libxml2
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```
2. 下载Python源代码。
```Shell
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wget https://www.python.org/ftp/python/3.7.6/Python-3.7.6.tar.xz
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```
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3. 验证下载文件。
```Bash
md5sum Python-3.7.6.tar.xz
```
4. 解压缩和解归档。
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```Shell
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xz -d Python-3.7.6.tar.xz
tar -xvf Python-3.7.6.tar
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```
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5. 执行安装前的配置生成Makefile文件
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```Shell
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cd Python-3.7.6
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./configure --prefix=/usr/local/python37 --enable-optimizations
```
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6. 构建和安装。
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```Shell
make && make install
```
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7. 配置PATH环境变量用户或系统环境变量并激活。
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```Shell
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vim ~/.bash_profile
vim /etc/profile
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```
```INI
... 此处省略上面的代码...
export PATH=$PATH:/usr/local/python37/bin
... 此处省略下面的代码...
```
```Shell
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source ~/.bash_profile
source /etc/profile
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```
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8. 注册软链接(符号链接)- 这一步不是必须的,但通常会比较有用。
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```Shell
ln -s /usr/local/python37/bin/python3 /usr/bin/python3
```
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9. 测试Python环境是否更新成功安装Python 3一定不能破坏原来的Python 2
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```Shell
python3 --version
python --version
```
### 项目目录结构
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假设项目文件夹为`project`,下面的五个子目录分别是:`code`、`conf`、`logs`、`stat`和`venv`分别用来保存项目的代码、配置文件、日志文件、静态资源和虚拟环境。其中,`conf`目录下的子目录`cert`中保存了配置HTTPS需要使用的证书和密钥`code`目录下的项目代码可以通过版本控制工具从代码仓库中检出虚拟环境可以通过工具venv、virtualenv、pyenv等进行创建。
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```
project
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├── code
│   └── fangtx
│   ├── api
│   ├── common
│   ├── fangtx
│   ├── forum
│   ├── rent
│   ├── user
│   ├── manage.py
│   ├── README.md
│   ├── static
│   └── templates
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├── conf
│   ├── cert
│   │   ├── 214915882850706.key
│   │   └── 214915882850706.pem
│   ├── nginx.conf
│   └── uwsgi.ini
├── logs
│   ├── access.log
│   ├── error.log
│   └── uwsgi.log
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├── stat
│   └── css
│   └── images
│   └── js
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└── venv
├── bin
│   ├── activate
│   ├── activate.csh
│   ├── activate.fish
│   ├── celery
│   ├── celerybeat
│   ├── celeryd
│   ├── celeryd-multi
│   ├── coverage
│   ├── coverage3
│   ├── coverage-3.7
│   ├── django-admin
│   ├── django-admin.py
│   ├── easy_install
│   ├── easy_install-3.7
│   ├── pip
│   ├── pip3
│   ├── pip3.7
│   ├── __pycache__
│   ├── pyrsa-decrypt
│   ├── pyrsa-decrypt-bigfile
│   ├── pyrsa-encrypt
│   ├── pyrsa-encrypt-bigfile
│   ├── pyrsa-keygen
│   ├── pyrsa-priv2pub
│   ├── pyrsa-sign
│   ├── pyrsa-verify
│   ├── python -> python3
│   ├── python3 -> /usr/bin/python3
│   └── uwsgi
├── include
├── lib
│   └── python3.7
├── lib64 -> lib
├── pip-selfcheck.json
└── pyvenv.cfg
```
下面以阿里云为例,简单说明如何为项目注册域名、解析域名以及购买权威机构颁发的证书。
1. [注册域名](https://wanwang.aliyun.com/domain/)。
![](./res/aliyun-domain.png)
2. [域名备案](https://beian.aliyun.com/)。
![](./res/aliyun-keeprecord.png)
3. [域名解析](https://dns.console.aliyun.com/#/dns/domainList)。
![](./res/aliyun-dnslist.png)
![](./res/aliyun-resolve-settings.png)
4. [购买证书](https://www.aliyun.com/product/cas)。
![](./res/aliyun-certificate.png)
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可以使用类似于sftp的工具将证书上传到`conf/cert`目录然后使用git克隆项目代码到`code`目录。
```Shell
cd code
git clone <url>
```
回到项目目录,创建并激活虚拟环境。
```Shell
python3 -m venv venv
source venv/bin/activate
```
重建项目依赖项。
```Shell
pip install -r code/teamproject/requirements.txt
```
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### uWSGI的配置
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1. 安装uWSGI。
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```Shell
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pip install uwsgi
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```
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2. 修改uWSGI的配置文件`/root/project/conf/uwsgi.ini`)。
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```INI
[uwsgi]
# 配置前导路径
base=/root/project
# 配置项目名称
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name=teamproject
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# 守护进程
master=true
# 进程个数
processes=4
# 虚拟环境
pythonhome=%(base)/venv
# 项目地址
chdir=%(base)/code/%(name)
# 指定python解释器
pythonpath=%(pythonhome)/bin/python
# 指定uwsgi文件
module=%(name).wsgi
# 通信的地址和端口(自己服务器的IP地址和端口)
socket=172.18.61.250:8000
# 日志文件地址
logto=%(base)/logs/uwsgi.log
```
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> 说明可以先将“通信的地址和端口”项等号前面改为http来进行测试如果没有问题再改回 成socket然后通过Nginx来实现项目的“动静分离”静态资源交给Nginx处理动态内容交给 uWSGI处理。按照下面的方式可以启动uWSGI服务器。
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5. 启动服务器。
```Shell
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nohup uwsgi --ini conf/uwsgi.ini &
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```
### Nginx的配置
1. 安装Nginx。
```Shell
yum -y install nginx
```
2. 修改全局配置文件(`/etc/nginx/nginx.conf`)。
```Nginx
# 配置用户
user nginx;
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# 工作进程数(建议跟CPU的核数量一致)
worker_processes auto;
# 错误日志
error_log /var/log/nginx/error.log;
# 进程文件
pid /run/nginx.pid;
# 包含其他的配置
include /usr/share/nginx/modules/*.conf;
# 工作模式(多路IO复用方式)和连接上限
events {
use epoll;
worker_connections 1024;
}
# HTTP服务器相关配置
http {
# 日志格式
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
# 访问日志
access_log /var/log/nginx/access.log main;
# 开启高效文件传输模式
sendfile on;
# 用sendfile传输文件时有利于改善性能
tcp_nopush on;
# 禁用Nagle来解决交互性问题
tcp_nodelay on;
# 客户端保持连接时间
keepalive_timeout 30;
types_hash_max_size 2048;
# 包含MIME类型的配置
include /etc/nginx/mime.types;
# 默认使用二进制流格式
default_type application/octet-stream;
# 包含其他配置文件
include /etc/nginx/conf.d/*.conf;
# 包含项目的Nginx配置文件
include /root/project/conf/*.conf;
}
```
3. 编辑局部配置文件(`/root/project/conf/nginx.conf`)。
```Nginx
server {
listen 80;
server_name _;
access_log /root/project/logs/access.log;
error_log /root/project/logs/error.log;
location / {
include uwsgi_params;
uwsgi_pass 172.18.61.250:8000;
}
location /static/ {
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alias /root/project/stat/;
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expires 30d;
}
}
server {
listen 443;
server_name _;
ssl on;
access_log /root/project/logs/access.log;
error_log /root/project/logs/error.log;
ssl_certificate /root/project/conf/cert/214915882850706.pem;
ssl_certificate_key /root/project/conf/cert/214915882850706.key;
ssl_session_timeout 5m;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
location / {
include uwsgi_params;
uwsgi_pass 172.18.61.250:8000;
}
location /static/ {
alias /root/project/static/;
expires 30d;
}
}
```
到此为止我们可以启动Nginx来访问我们的应用程序HTTP和HTTPS都是没有问题的如果Nginx已经运行在修改配置文件后我们可以用下面的命令重新启动Nginx。
4. 重启Nginx服务器。
```Shell
nginx -s reload
```
```Shell
systemctl restart nginx
```
> 说明可以对Django项目使用`python manage.py collectstatic`命令将静态资源收集到指定目录下,要做到这点只需要在项目的配置文件`settings.py`中添加`STATIC_ROOT`配置即可。
#### 负载均衡配置
下面的配置中我们使用Nginx实现负载均衡为另外的三个Nginx服务器通过Docker创建提供反向代理服务。
```Shell
docker run -d -p 801:80 --name nginx1 nginx:latest
docker run -d -p 802:80 --name nginx2 nginx:latest
docker run -d -p 803:80 --name nginx3 nginx:latest
```
```Nginx
user root;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 1024;
}
# 为HTTP服务配置负载均衡
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http {
upstream xx {
server 192.168.1.100 weight=2;
server 192.168.1.101 weight=1;
server 192.168.1.102 weight=1;
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}
server {
listen 80 default_server;
listen [::]:80 default_server;
listen 443 ssl;
listen [::]:443 ssl;
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ssl on;
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access_log /root/project/logs/access.log;
error_log /root/project/logs/error.log;
ssl_certificate /root/project/conf/cert/214915882850706.pem;
ssl_certificate_key /root/project/conf/cert/214915882850706.key;
ssl_session_timeout 5m;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
location / {
proxy_set_header Host $host;
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proxy_set_header X-Forwarded-For $remote_addr;
# proxy_set_header X-Real-IP $remote_addr;
# proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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proxy_buffering off;
proxy_pass http://fangtx;
}
}
}
```
> 说明Nginx在配置负载均衡时默认使用WRR加权轮询算法除此之外还支持ip_hash、fair需要安装upstream_fair模块和url_hash算法。此外在配置upstream模块时可以指定服务器的状态值包括backup备份机器其他服务器不可用时才将请求分配到该机器、down、fail_timeout请求失败达到max_fails后的暂停服务时间、max_fails允许请求失败的次数和weight轮询的权重
### Keepalived
当使用Nginx进行负载均衡配置时要考虑负载均衡服务器宕机的情况。为此可以使用Keepalived来实现负载均衡主机和备机的热切换从而保证系统的高可用性。Keepalived的配置还是比较复杂通常由专门做运维的人进行配置一个基本的配置可以参照[《Keepalived的配置和使用》](https://www.jianshu.com/p/dd93bc6d45f5)。
### MySQL主从复制
下面还是基于Docker来演示如何配置MySQL主从复制。我们事先准备好MySQL的配置文件以及保存MySQL数据和运行日志的目录然后通过Docker的数据卷映射来指定容器的配置、数据和日志文件的位置。
```Shell
root
└── mysql
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├── master
│   ├── conf
| └── data
└── slave-1
| ├── conf
| └── data
└── slave-2
| ├── conf
| └── data
└── slave-3
├── conf
└── data
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```
1. MySQL的配置文件master和slave的配置文件需要不同的server-id
```
[mysqld]
pid-file=/var/run/mysqld/mysqld.pid
socket=/var/run/mysqld/mysqld.sock
datadir=/var/lib/mysql
log-error=/var/log/mysql/error.log
server-id=1
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log-bin=/var/log/mysql/mysql-bin.log
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expire_logs_days=30
max_binlog_size=256M
symbolic-links=0
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# slow_query_log=ON
# slow_query_log_file=/var/log/mysql/slow.log
# long_query_time=1
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```
2. 创建和配置master。
```Shell
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docker run -d -p 3306:3306 --name mysql-master \
-v /root/mysql/master/conf:/etc/mysql/mysql.conf.d \
-v /root/mysql/master/data:/var/lib/mysql \
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-e MYSQL_ROOT_PASSWORD=123456 mysql:5.7
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docker exec -it mysql-master /bin/bash
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```
```Shell
mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.7.23-log MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> grant replication slave on *.* to 'slave'@'%' identified by 'iamslave';
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
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| mysql-bin.000003 | 590 | | | |
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+------------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)
mysql> quit
Bye
exit
```
上面创建Docker容器时使用的`-v`参数(`--volume`)表示映射数据卷,冒号前是宿主机的目录,冒号后是容器中的目录,这样相当于将宿主机中的目录挂载到了容器中。
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3. 备份主表中的数据(如果需要的话)。
```SQL
mysql> flush table with read lock;
```
```Bash
mysqldump -u root -p 123456 -A -B > /root/backup/mysql/mybak$(date +"%Y%m%d%H%M%S").sql
```
```SQL
mysql> unlock table;
```
4. 创建和配置slave。
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```Shell
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docker run -d -p 3308:3306 --name mysql-slave-1 \
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-v /root/mysql/slave-1/conf:/etc/mysql/mysql.conf.d \
-v /root/mysql/slave-1/data:/var/lib/mysql \
-e MYSQL_ROOT_PASSWORD=123456 \
--link mysql-master:mysql-master mysql:5.7
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docker run -d -p 3309:3306 --name mysql-slave-2 \
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-v /root/mysql/slave-2/conf:/etc/mysql/mysql.conf.d \
-v /root/mysql/slave-2/data:/var/lib/mysql \
-e MYSQL_ROOT_PASSWORD=123456 \
--link mysql-master:mysql-master mysql:5.7
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docker run -d -p 3310:3306 --name mysql-slave-3 \
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-v /root/mysql/slave-3/conf:/etc/mysql/mysql.conf.d \
-v /root/mysql/slave-3/data:/var/lib/mysql \
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-e MYSQL_ROOT_PASSWORD=123456 \
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--link mysql-master:mysql-master mysql:5.7
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docker exec -it mysql-slave-1 /bin/bash
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```
```Shell
mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.23-log MySQL Community Server (GPL)
Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> reset slave;
Query OK, 0 rows affected (0.02 sec)
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mysql> change master to master_host='mysql-master', master_user='slave', master_password='iamslave', master_log_file='mysql-bin.000003', master_log_pos=590;
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Query OK, 0 rows affected, 2 warnings (0.03 sec)
mysql> start slave;
Query OK, 0 rows affected (0.01 sec)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: mysql57
Master_User: slave
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 590
Relay_Log_File: f352f05eb9d0-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 590
Relay_Log_Space: 534
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 1
Master_UUID: 30c38043-ada1-11e8-8fa1-0242ac110002
Master_Info_File: /var/lib/mysql/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
Replicate_Rewrite_DB:
Channel_Name:
Master_TLS_Version:
1 row in set (0.00 sec)
mysql> quit
Bye
exit
```
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接下来可以如法炮制配置出slave2和slave3这样就可以搭建起一个“一主带三从”的主从复制环境。上面创建创建容器时使用的`--link`参数用来配置容器在网络上的主机名(网络地址别名)。
配置好主从复制后写数据的操作应该master上执行而读数据的操作应该在slave上完成。为此在Django项目中需要配置DATABASE_ROUTERS并通过自定义的主从复制路由类来实现读写分离操作如下所示
```Python
DATABASE_ROUTERS = [
# 此处省略其他配置
'common.routers.MasterSlaveRouter',
]
```
```Python
class MasterSlaveRouter(object):
"""主从复制路由"""
@staticmethod
def db_for_read(model, **hints):
"""
Attempts to read auth models go to auth_db.
"""
return random.choice(('slave1', 'slave2', 'slave3'))
@staticmethod
def db_for_write(model, **hints):
"""
Attempts to write auth models go to auth_db.
"""
return 'default'
@staticmethod
def allow_relation(obj1, obj2, **hints):
"""
Allow relations if a model in the auth app is involved.
"""
return None
@staticmethod
def allow_migrate(db, app_label, model_name=None, **hints):
"""
Make sure the auth app only appears in the 'auth_db'
database.
"""
return True
```
上面的内容参考了Django官方文档的[DATABASE_ROUTERS配置](https://docs.djangoproject.com/en/2.1/topics/db/multi-db/#topics-db-multi-db-routing),对代码进行了适当的调整。
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### Docker
事实上项目上线中最为麻烦的事情就是配置软件运行环境环境的差异会给软件的安装和部署带来诸多的麻烦而Docker正好可以解决这个问题。关于Docker在之前的文档中我们已经介绍过了接下来我们对Docker的知识做一些必要的补充。
1. 创建镜像文件。
将容器保存成镜像:
```Shell
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docker commit -m "..." -a "jackfrued" <container-name> jackfrued/<image-name>
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```
使用Dockerfile构建镜像
```Dockerfile
# 指定基础镜像文件
FROM centos:latest
# 指定维护者信息
MAINTAINER jackfrued
# 执行命令
RUN yum -y install gcc
RUN cd ~
RUN mkdir -p project/code
RUN mkdir -p project/logs
# 拷贝文件
COPY ...
# 暴露端口
EXPOSE ...
# 在容器启动时执行命令
CMD ~/init.sh
```
```Shell
docker build -t jackfrued/<image-name> .
```
2. 镜像的导入和导出。
```Shell
docker save -o <file-name>.tar <image-name>:<version>
docker load -i <file-name>.tar
```
3. 推送到DockerHub服务器。
```Shell
docker tag <image-name>:<version> jackfrued/<name>
docker login
docker push jackfrued/<name>
```
4. 容器之间的通信。
```Shell
docker run --link <container-name>:<alias-name>
```
如果我们能够在Docker中完成项目的部署并且将整个部署好的容器打包成镜像文件进行分发和安装这样就可以解决项目在多个节点上进行部署时可能遇到的麻烦而且整个部署可以在很短的时间内完成。
### Supervisor
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[Supervisor](https://github.com/Supervisor/supervisor)是一个用Python写的进程管理工具可以很方便的用来在类Unix系统下启动、重启自动重启程序和关闭进程目前Supervisor暂时还没有提供对Python 3的支持可以通过Python 2来安装和运行Supervisor再通过Supervisor来管理Python 3的程序。
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2019-10-28 23:20:39 +08:00
> **提示**还有一个和Supervisor功能类似的工具名为Circus支持Python 3。
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1. 安装Supervisor。
```Shell
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virtualenv -p /usr/bin/python venv
source venv/bin/activate
pip install supervisor
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```
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2. 查看Supervisor的配置文件。
```Shell
vim /etc/supervisord.conf
```
```INI
; 此处省略上面的代码
; The [include] section can just contain the "files" setting. This
; setting can list multiple files (separated by whitespace or
; newlines). It can also contain wildcards. The filenames are
; interpreted as relative to this file. Included files *cannot*
; include files themselves.
[include]
files = supervisord.d/*.ini
```
可以看出自定义的管理配置代码可以放在`/etc/supervisord.d`目录中,并且文件名以`ini`作为后缀即可。
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3. 编写自己的配置文件`fangtx.ini`并放在`/etc/supervisord.d`目录中。
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```INI
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[program:project]
command=uwsgi --ini /root/project/conf/uwsgi.ini
stopsignal=QUIT
autostart=true
autorestart=true
redirect_stderr=true
[program:celery]
; Set full path to celery program if using virtualenv
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command=/root/project/venv/bin/celery -A fangtx worker
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user=root
numprocs=1
stdout_logfile=/var/log/supervisor/celery.log
stderr_logfile=/var/log/supervisor/celery_error.log
autostart=true
autorestart=true
startsecs=10
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; Need to wait for currently executing tasks to finish at shutdown.
; Increase this if you have very long running tasks.
;stopwaitsecs = 600
; When resorting to send SIGKILL to the program to terminate it
; send SIGKILL to its whole process group instead,
; taking care of its children as well.
killasgroup=true
; Set Celery priority higher than default (999)
; so, if rabbitmq is supervised, it will start first.
priority=1000
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```
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4. 启动Supervisor。
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```Shell
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supervisorctl -c /etc/supervisord.conf
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```
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### 其他服务
1. 常用开源软件。
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| 功能 | 开源方案 |
| ------------------- | ------------------------------- |
| 版本控制工具 | Git、Mercurial、SVN |
| 缺陷管理 | Redmine、Mantis |
| 负载均衡 | Nginx、LVS、HAProxy |
| 邮件服务 | Postfix、Sendmail |
| HTTP服务 | Nginx、Apache |
| 消息队列 | RabbitMQ、ZeroMQ、Redis、Kafka |
| 文件系统 | FastDFS |
| 基于位置服务LBS | MongoDB、Redis |
| 监控服务 | Nagios、Zabbix |
| 关系型数据库 | MySQL、PostgreSQL |
| 非关系型数据库 | MongoDB、Redis、Cassandra、TiDB |
| 搜索引擎 | ElasticSearch、Solr |
| 缓存服务 | Mamcached、Redis |
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2. 常用云服务。
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| 功能 | 可用的云服务 |
| -------------- | -------------------------------------- |
| 团队协作工具 | Teambition、钉钉 |
| 代码托管平台 | Github、Gitee、CODING |
| 邮件服务 | SendCloud |
| 云存储CDN | 七牛、OSS、LeanCloud、Bmob、又拍云、S3 |
| 移动端推送 | 极光、友盟、百度 |
| 即时通信 | 环信、融云 |
| 短信服务 | 云片、极光、Luosimao、又拍云 |
| 第三方登录 | 友盟、ShareSDK |
| 网站监控和统计 | 阿里云监控、监控宝、百度云观测、小鸟云 |
2018-12-22 16:26:07 +08:00