项目部署步骤
1.项目准备阶段
1.准备项目代码,从本地拷贝
2.将项目上传到linux服务器中,也就是拖进linux中...
3.执行命令解压缩项目文件
2.解决项目运行的环境问题
1.通过命令导出开发机器的所有模块,可以在windows下通过命令,导出模块文件
pip3 freeze > requirements.txt #这是开发者约定俗成的文件名
2.将这个文件上传linux上.进行安装
pip3 install -i https://pypi.douban.com/simple -r requirements.txt
3.数据库操作
1.准备需要使用的数据库db #例如mysql 没有就下载
yum install mariadb-server mariadb -y
2.启动数据库
systemctl start maridb
3.修改项目中settings.py中配置文件,修改mysql数据库驱动,还有ALL_HOSTS = [" * "],允许所有网段访问
4.创建数据库和项目对应的库名
4.virtualenv虚拟环境配置
1.配置好python3虚拟环境
2.进入虚拟环境安装uwsgi
pip3 install uwsgi
python3虚拟环境配置虚拟环境,参照 --->https://www.cnblogs.com/CrazySheldon1/p/10488249.html
5.uwsgi准备和配置
uwsgi.ini配置参考这个博友https://blog.51cto.com/wangfeng7399/2341281
通过uwsgi启动django项目
#1. 首先进入项目的第一层 cd 项目名
#2.执行命令启动
django uwsgi --http :8000 --module 项目名.wsgi
#也可以执行热加载命令: uwsgi --http :8000 --module 项目名.wsgi --py-autoreload=1 #--py-autoreload=1 就是检测到项目中修改代码后进行自动重启进行同步
#3.使用nginx的话就需要通过配置文件启动uwsgi,在项目第一层创建一个uwsgi.ini的文件 touch uwsgi.ini
4.手动配置uwsgi.ini文件
[uwsgi]
# Django-related settings
# the base directory (full path)
#这里写入项目的绝对路径
chdir= /opt/项目名
# Django's wsgi file
#写入django的第二层文件夹，和wsgi.py文件
module = 项目名.wsgi
# the virtualenv (full path)
#虚拟环境的绝对路径
home= /root/Envs/虚拟环境名
# process-related settings
# master
master= true
# maximum number of worker processes
processes= 1
#如果你没用nginx，想直接访问django后台，可以使用http协议
#http = 0.0.0.0:8000
#如果你用了nginx进行反向代理，请使用socket协议，注释掉http协议
socket= 0.0.0.0:8000
# ... with appropriate permissions - may be needed
# chmod-socket= 664
# clear environment on exit
vacuum= true
6.nginx配置结合uwsgi启动
1.修改nginx配置文件.nginx.conf
#如下nginx的反向代理
location /{
include uwsgi_params;
uwsgi_pass 0.0.0.0:8000;
}
#http://192.168.11.250/static/admin/css/base.css#当请求url，从
static路径开始时，我们就让他去找某一个文件夹解决静态文件的配置方式
location /static{
alias /opt/自定义名称 #(存放static静态文件)
}
2.修改django的settings.py,收集静态资源
STATIC_ROOT = '/opt/project_name_static' #在settings.py中添加(自定义名称)
#同时保证以下两个配置存在
STATIC_URL = '/static/'
STATICFILES_DIRS = [
os.path.join(BASE_DIR, 'static')
]
3.使用命令收集django的静态文件
python3 manage.py collectstatic #注意在manage.py同级目录执行
7.使用supervisor启动uwsgi
#1.首先退出虚拟环境,安装supervisor, 注意python3不支持supervisor,因此要使用物理环境的python2进行安装,
#yum - install python-setuptools
#easy_install supervisor
#2.安装完毕后,生成配置文件
echo_supervisord_conf > /etc/supervisord.conf
#3.在配置文件中,添加任务,管理uwsgi
vim /etc/supervisord.conf #在最底行，写入配置如下
[program:自定义名称]
command=/root/Envs/虚拟环境名称/bin/uwsgi --ini
/opt/项目名称/uwsgi.ini
stopasgroup=true
killasgroup=true
#4.启动supervisor服务
supervisord -c /etc/supervisord.conf
#5.通过命令进行管理uwsgi
supervisorctl -c /etc/supervisord.conf
#6.学习管理supervisor的命令
start 任务名
stop 任务名
stop all
start all
status 任务名
此时项目部署完毕,如果没有差错,便可以通过ip正常跑起来了...
项目细节部分
不用nginx也能实现项目部署,通过uwsgi热加载也可以启动django项目,为什么要用nginx?
- 安全问题:程序不能直接被浏览器访问,而是通过nginx,nginx只开放某个接口,uwsgi本身是内网接口,这样运维人员在nginx上加上安全性限制,可以达到保护程序的作用
- 负载均衡问题:一个uwsgi 很可能不够用,即使开了多个work也不行,毕竟一台机器的cpu内存是有限的,有了nginx做代理,一个nginx可以代理多台uwsgi完成uwsgi的负载均衡
- 静态问题:使用django或是uwsgi来负责静态文件是很浪费的行为,而且他们本身对文件的处理也不如nginx好,所以整个静态文件的处理都直接由nginx完成.
...
CrazyShenldon
posted @
2019-03-07 19:38
FindSoul
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var RENDERER = {
POINT_INTERVAL : 5,
FISH_COUNT : 3,
MAX_INTERVAL_COUNT : 50,
INIT_HEIGHT_RATE : 0.5,
THRESHOLD : 50,
init : function(){
this.setParameters();
this.reconstructMethods();
this.setup();
this.bindEvent();
this.render();
},
setParameters : function(){
this.$window = $(window);
this.$container = $('#jsi-flying-fish-container');
this.$canvas = $('');
this.context = this.$canvas.appendTo(this.$container).get(0).getContext('2d');
this.points = [];
this.fishes = [];
this.watchIds = [];
},
createSurfacePoints : function(){
var count = Math.round(this.width / this.POINT_INTERVAL);
this.pointInterval = this.width / (count - 1);
this.points.push(new SURFACE_POINT(this, 0));
for(var i = 1; i < count; i++){
var point = new SURFACE_POINT(this, i * this.pointInterval),
previous = this.points[i - 1];
point.setPreviousPoint(previous);
previous.setNextPoint(point);
this.points.push(point);
}
},
reconstructMethods : function(){
this.watchWindowSize = this.watchWindowSize.bind(this);
this.jdugeToStopResize = this.jdugeToStopResize.bind(this);
this.startEpicenter = this.startEpicenter.bind(this);
this.moveEpicenter = this.moveEpicenter.bind(this);
this.reverseVertical = this.reverseVertical.bind(this);
this.render = this.render.bind(this);
},
setup : function(){
this.points.length = 0;
this.fishes.length = 0;
this.watchIds.length = 0;
this.intervalCount = this.MAX_INTERVAL_COUNT;
this.width = this.$container.width();
this.height = this.$container.height();
this.fishCount = this.FISH_COUNT * this.width / 500 * this.height / 500;
this.$canvas.attr({width : this.width, height : this.height});
this.reverse = false;
this.fishes.push(new FISH(this));
this.createSurfacePoints();
},
watchWindowSize : function(){
this.clearTimer();
this.tmpWidth = this.$window.width();
this.tmpHeight = this.$window.height();
this.watchIds.push(setTimeout(this.jdugeToStopResize, this.WATCH_INTERVAL));
},
clearTimer : function(){
while(this.watchIds.length > 0){
clearTimeout(this.watchIds.pop());
}
},
jdugeToStopResize : function(){
var width = this.$window.width(),
height = this.$window.height(),
stopped = (width == this.tmpWidth && height == this.tmpHeight);
this.tmpWidth = width;
this.tmpHeight = height;
if(stopped){
this.setup();
}
},
bindEvent : function(){
this.$window.on('resize', this.watchWindowSize);
this.$container.on('mouseenter', this.startEpicenter);
this.$container.on('mousemove', this.moveEpicenter);
this.$container.on('click', this.reverseVertical);
},
getAxis : function(event){
var offset = this.$container.offset();
return {
x : event.clientX - offset.left + this.$window.scrollLeft(),
y : event.clientY - offset.top + this.$window.scrollTop()
};
},
startEpicenter : function(event){
this.axis = this.getAxis(event);
},
moveEpicenter : function(event){
var axis = this.getAxis(event);
if(!this.axis){
this.axis = axis;
}
this.generateEpicenter(axis.x, axis.y, axis.y - this.axis.y);
this.axis = axis;
},
generateEpicenter : function(x, y, velocity){
if(y < this.height / 2 - this.THRESHOLD || y > this.height / 2 + this.THRESHOLD){
return;
}
var index = Math.round(x / this.pointInterval);
if(index < 0 || index >= this.points.length){
return;
}
this.points[index].interfere(y, velocity);
},
reverseVertical : function(){
this.reverse = !this.reverse;
for(var i = 0, count = this.fishes.length; i < count; i++){
this.fishes[i].reverseVertical();
}
},
controlStatus : function(){
for(var i = 0, count = this.points.length; i < count; i++){
this.points[i].updateSelf();
}
for(var i = 0, count = this.points.length; i < count; i++){
this.points[i].updateNeighbors();
}
if(this.fishes.length < this.fishCount){
if(--this.intervalCount == 0){
this.intervalCount = this.MAX_INTERVAL_COUNT;
this.fishes.push(new FISH(this));
}
}
},
render : function(){
requestAnimationFrame(this.render);
this.controlStatus();
this.context.clearRect(0, 0, this.width, this.height);
this.context.fillStyle = 'hsl(0, 0%, 95%)';
for(var i = 0, count = this.fishes.length; i < count; i++){
this.fishes[i].render(this.context);
}
this.context.save();
this.context.globalCompositeOperation = 'xor';
this.context.beginPath();
this.context.moveTo(0, this.reverse ? 0 : this.height);
for(var i = 0, count = this.points.length; i < count; i++){
this.points[i].render(this.context);
}
this.context.lineTo(this.width, this.reverse ? 0 : this.height);
this.context.closePath();
this.context.fill();
this.context.restore();
}
};
var SURFACE_POINT = function(renderer, x){
this.renderer = renderer;
this.x = x;
this.init();
};
SURFACE_POINT.prototype = {
SPRING_CONSTANT : 0.03,
SPRING_FRICTION : 0.9,
WAVE_SPREAD : 0.3,
ACCELARATION_RATE : 0.01,
init : function(){
this.initHeight = this.renderer.height * this.renderer.INIT_HEIGHT_RATE;
this.height = this.initHeight;
this.fy = 0;
this.force = {previous : 0, next : 0};
},
setPreviousPoint : function(previous){
this.previous = previous;
},
setNextPoint : function(next){
this.next = next;
},
interfere : function(y, velocity){
this.fy = this.renderer.height * this.ACCELARATION_RATE * ((this.renderer.height - this.height - y) >= 0 ? -1 : 1) * Math.abs(velocity);
},
updateSelf : function(){
this.fy += this.SPRING_CONSTANT * (this.initHeight - this.height);
this.fy *= this.SPRING_FRICTION;
this.height += this.fy;
},
updateNeighbors : function(){
if(this.previous){
this.force.previous = this.WAVE_SPREAD * (this.height - this.previous.height);
}
if(this.next){
this.force.next = this.WAVE_SPREAD * (this.height - this.next.height);
}
},
render : function(context){
if(this.previous){
this.previous.height += this.force.previous;
this.previous.fy += this.force.previous;
}
if(this.next){
this.next.height += this.force.next;
this.next.fy += this.force.next;
}
context.lineTo(this.x, this.renderer.height - this.height);
}
};
var FISH = function(renderer){
this.renderer = renderer;
this.init();
};
FISH.prototype = {
GRAVITY : 0.4,
init : function(){
this.direction = Math.random() < 0.5;
this.x = this.direction ? (this.renderer.width + this.renderer.THRESHOLD) : -this.renderer.THRESHOLD;
this.previousY = this.y;
this.vx = this.getRandomValue(4, 10) * (this.direction ? -1 : 1);
if(this.renderer.reverse){
this.y = this.getRandomValue(this.renderer.height * 1 / 10, this.renderer.height * 4 / 10);
this.vy = this.getRandomValue(2, 5);
this.ay = this.getRandomValue(0.05, 0.2);
}else{
this.y = this.getRandomValue(this.renderer.height * 6 / 10, this.renderer.height * 9 / 10);
this.vy = this.getRandomValue(-5, -2);
this.ay = this.getRandomValue(-0.2, -0.05);
}
this.isOut = false;
this.theta = 0;
this.phi = 0;
},
getRandomValue : function(min, max){
return min + (max - min) * Math.random();
},
reverseVertical : function(){
this.isOut = !this.isOut;
this.ay *= -1;
},
controlStatus : function(context){
this.previousY = this.y;
this.x += this.vx;
this.y += this.vy;
this.vy += this.ay;
if(this.renderer.reverse){
if(this.y > this.renderer.height * this.renderer.INIT_HEIGHT_RATE){
this.vy -= this.GRAVITY;
this.isOut = true;
}else{
if(this.isOut){
this.ay = this.getRandomValue(0.05, 0.2);
}
this.isOut = false;
}
}else{
if(this.y < this.renderer.height * this.renderer.INIT_HEIGHT_RATE){
this.vy += this.GRAVITY;
this.isOut = true;
}else{
if(this.isOut){
this.ay = this.getRandomValue(-0.2, -0.05);
}
this.isOut = false;
}
}
if(!this.isOut){
this.theta += Math.PI / 20;
this.theta %= Math.PI * 2;
this.phi += Math.PI / 30;
this.phi %= Math.PI * 2;
}
this.renderer.generateEpicenter(this.x + (this.direction ? -1 : 1) * this.renderer.THRESHOLD, this.y, this.y - this.previousY);
if(this.vx > 0 && this.x > this.renderer.width + this.renderer.THRESHOLD || this.vx < 0 && this.x < -this.renderer.THRESHOLD){
this.init();
}
},
render : function(context){
context.save();
context.translate(this.x, this.y);
context.rotate(Math.PI + Math.atan2(this.vy, this.vx));
context.scale(1, this.direction ? 1 : -1);
context.beginPath();
context.moveTo(-30, 0);
context.bezierCurveTo(-20, 15, 15, 10, 40, 0);
context.bezierCurveTo(15, -10, -20, -15, -30, 0);
context.fill();
context.save();
context.translate(40, 0);
context.scale(0.9 + 0.2 * Math.sin(this.theta), 1);
context.beginPath();
context.moveTo(0, 0);
context.quadraticCurveTo(5, 10, 20, 8);
context.quadraticCurveTo(12, 5, 10, 0);
context.quadraticCurveTo(12, -5, 20, -8);
context.quadraticCurveTo(5, -10, 0, 0);
context.fill();
context.restore();
context.save();
context.translate(-3, 0);
context.rotate((Math.PI / 3 + Math.PI / 10 * Math.sin(this.phi)) * (this.renderer.reverse ? -1 : 1));
context.beginPath();
if(this.renderer.reverse){
context.moveTo(5, 0);
context.bezierCurveTo(10, 10, 10, 30, 0, 40);
context.bezierCurveTo(-12, 25, -8, 10, 0, 0);
}else{
context.moveTo(-5, 0);
context.bezierCurveTo(-10, -10, -10, -30, 0, -40);
context.bezierCurveTo(12, -25, 8, -10, 0, 0);
}
context.closePath();
context.fill();
context.restore();
context.restore();
this.controlStatus(context);
}
};
$(function(){
RENDERER.init();
});
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