LNM+Python Django+uwsgi+redis项目
LNM+Python Django+uwsgi+redis项目
0.安装项目中需要的包
pip3 install -i https://pypi.doubanio.com/simple/ -r re.txt
vim re.txt
asn1crypto==0.24.0
beautifulsoup4==4.6.3
bs4==0.0.1
certifi==2018.4.16
cffi==1.11.5
chardet==3.0.4
Click==7.0
cryptography==2.3.1
Django==1.11.9
Flask==1.0.2
Flask-Cors==3.0.6
gevent==1.3.6
greenlet==0.4.15
idna==2.7
ItsDangerous==1.1.0
Jinja2==2.10
lxml==4.2.6
MarkupSafe==1.0
numpy==1.15.3
Pillow==5.3.0
pycparser==2.18
PyMySQL==0.9.2
pytz==2018.7
requests==2.19.1
selenium==3.141.0
six==1.11.0
urllib3==1.23
virtualenv==16.1.0
Werkzeug==0.14.1
wordcloud==1.5.0
1.数据库的处理
1.1 上传bbs.sql
1.2 在mysql中创建bbs库,并导入数据库SQL脚本
mysql> create database bbs charset utf8mb4;
mysql> use bbs
mysql> source /opt/bbs.sql
mysql> drop database bbs;
1.3 查看项目settings.py配置文件,修改以下两处
ALLOWED_HOSTS = ['*']
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'bbs',
'HOST': "10.0.0.100",
'USER': 'root',
'PASSWORD': '123',
'PORT': 3306,
}
MySQL用户的定义
USERNAME@'白名单'
白名单: 主机域IP地址
root@'localhost'
root@'10.0.0.110'
root@'10.0.0.%'
root@'10.0.0.0/255.255.240.0'
root@'10.0.0.5%'
root@'%'
grant all
grant select,update,insert
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'bbs',
'HOST': "10.0.0.100",
'USER': 'bbs',
'PASSWORD': '123',
'PORT': 3306,
}
}
2. BBS项目部署
2.1 配置Nginx
[root@web01 BBS]# vim /etc/nginx/conf.d/py.conf
server {
listen 80;
server_name 10.0.0.100;
client_max_body_size 100M;
location /static {
alias /opt/BBS/static/;
}
location /media {
alias /opt/BBS/media;
}
location / {
index index.html;
include uwsgi_params;
uwsgi_pass 127.0.0.1:9090;
uwsgi_param UWSGI_SCRIPT BBS.wsgi;
uwsgi_param UWSGI_CHDIR /opt/BBS;
}
}
2.2 配置uwsgi
关闭所有已有的uwsgi进程
kill -9 `ps -ef |grep uwsgi|awk {'print $2'}`
[root@web01 BBS]# vim uwsgi.ini
[uwsgi]
socket = 127.0.0.1:9090
master = true
workers = 2
reload-mercy = 10
vacuum = true
max-requests = 1000
limit-as = 512
buffer-size = 30000
启动uwsgi
uwsgi --ini uwsgi.ini &
重启nginx
systemctl restart nginx
==================
Python 在运维工作中的经典应用
ansible
1.安装ansible
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum install ansible -y
克隆虚拟机
hostnamectl set-hostname standby
vim /etc/sysconfig/network-scripts/ifcfg-eth0
IPADDR=10.0.0.200
UUID行删掉
vim /etc/hosts
10.0.0.200 standby
systemctl restart network
+++++++++++++++++++++++++++++++
Linux的 SSHD(22)
验证方式:
(1)用户+密码(PAM)
(2)秘钥验证(公钥:钥匙和私钥:锁)
通过秘钥对实现,需要将公钥分发到各节点
+++++++++++++++++++++++++++++++
2.管理被控端，管理机先生成秘钥，然后推送公钥
ssh-keygen
ssh-copy-id -i ~/.ssh/id_rsa.pub root@10.0.0.200
[root@demo ~]# for i in {1..12};do ssh-copy-id -i ~/.ssh/id_rsa.pub root@10.0.0.$i;done
3.配置被管理的主机清单
[root@demo ~]# vim /etc/ansible/hosts
[web]
10.0.0.100
10.0.0.200
4.使用ansible的ad-hoc测试
[root@demo ~]# ansible all -m ping
10.0.0.12 | SUCCESS => {
"changed": false,
"ping": "pong"
}
10.0.0.11 | SUCCESS => {
"changed": false,
"ping": "pong"
}
#执行远程命令
[root@demo ~]# ansible all -m shell -a "df -h"
10.0.0.12 | CHANGED | rc=0 >>
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 98G 3.4G 95G 4% /
devtmpfs 477M 0 477M 0% /dev
tmpfs 488M 0 488M 0% /dev/shm
tmpfs 488M 7.7M 480M 2% /run
tmpfs 488M 0 488M 0% /sys/fs/cgroup
/dev/sda1 197M 102M 96M 52% /boot
tmpfs 98M 0 98M 0% /run/user/0
10.0.0.11 | CHANGED | rc=0 >>
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 98G 1.6G 97G 2% /
devtmpfs 981M 0 981M 0% /dev
tmpfs 992M 124K 992M 1% /dev/shm
tmpfs 992M 9.6M 982M 1% /run
tmpfs 992M 0 992M 0% /sys/fs/cgroup
/dev/sda1 197M 102M 96M 52% /boot
tmpfs 199M 0 199M 0% /run/user/0
5.ansible playbook自动化安装nginx
[root@demo ~]# vim playbook_nginx.yml
- hosts: web
remote_user: root
vars:
http_port: 80
tasks:
- name: Add Nginx Yum Repository
yum_repository:
name: nginx
description: Nginx Repository
baseurl: http://nginx.org/packages/centos/7/$basearch/
gpgcheck: no
- name: Install Nginx Server
yum:
name=nginx state=present
- name: Configure Nginx Server
template: src=./default.conf.template dest=/etc/nginx/conf.d/default.conf
notify: Restart Nginx Server
- name: Start Nginx Server
service: name=nginx state=started enabled=yes
handlers:
- name: Restart Nginx Server
service: name=nginx state=restarted
6.
default.conf.template文件如下
[root@demo ~]#vim default.conf.template
server {
listen {{ http_port }};
server_name localhost;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
}
7.执行ansible-playbook
检查语法
[root@demo ~]# ansible-playbook --syntax playbook_nginx.yml
模拟执行
[root@demo ~]# ansible-playbook -C playbook_nginx.yml
执行
[root@demo ~]# ansible-playbook playbook_nginx.yml
=============================================================
Docker容器技术
0、环境准备类：
curl http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum install -y yum-utils device-mapper-persistent-data lvm2
yum list docker-ce.x86_64 --showduplicates | sort -r
yum install -y --setopt=obsoletes=0 \
docker-ce-17.03.2.ce-1.el7.centos.x86_64 \
docker-ce-selinux-17.03.2.ce-1.el7.centos.noarch
systemctl daemon-reload
systemctl restart docker
docker version
docker info
配置镜像加速
阿里云Docker-hub
https://cr.console.aliyun.com/cn-hangzhou/mirrors
mkdir -p /etc/docker
tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://68rmyzg7.mirror.aliyuncs.com"]
}
EOF
或者:
vim /etc/docker/daemon.json
{
"registry-mirrors": ["https://68rmyzg7.mirror.aliyuncs.com"]
}
1. pull常用镜像
docker pull centos:6.9
docker pull centos:7.5.1804
docker pull nginx
CPU MEM IO
OS : Kernel
