使用nginx运行部署cherrypy时出错
我在flask中创建了一个应用程序,并用cherrypy部署了它使用nginx运行部署cherrypy时出错,nginx,flask,cherrypy,spark-submit,Nginx,Flask,Cherrypy,Spark Submit,我在flask中创建了一个应用程序,并用cherrypy部署了它 def run_server(app): # Enable WSGI access logging via Paste app_logged = TransLogger(app) app.config['JSON_AS_ASCII'] = False # Mount the WSGI callable object (app) on the root directory cherrypy.tree.graft(app_logg
def run_server(app):
# Enable WSGI access logging via Paste
app_logged = TransLogger(app)
app.config['JSON_AS_ASCII'] = False
# Mount the WSGI callable object (app) on the root directory
cherrypy.tree.graft(app_logged, '/')
# Set the configuration of the web server
cherrypy.config.update({
'engine.autoreload.on': True,
'log.screen': True,
'server.socket_port': 5050,
'server.socket_host': '0.0.0.0'
})
# Start the CherryPy WSGI web server
cherrypy.engine.start()
cherrypy.engine.block()
if __name__ == "__main__":
# Init spark context and load libraries
sc = init_spark_context()
app = create_app(sc)
# start web server
run_server(app)
通过添加此代码,我使用nginx锁定了端口5050
server {
listen 5050;
listen [::]:5050;
server_name _;
root /var/www/html;
location / {
try_files $uri $uri/ =404;
}
}
至/etc/nginx/sites available/default
我在运行cherrypy(或spark submit)时遇到此错误
nginx和cherrypy(Python)是独立的HTTP服务器,因此它们都需要自己的端口。您将看到端口5050不是免费的
错误,因为这些进程正在竞争同一个进程。(在本例中,看起来nginx进程是先启动的,所以它“击败”了cherrypy)。以下是相关配置:
樱桃糖
cherrypy.config.update({
'engine.autoreload.on': True,
'log.screen': True,
'server.socket_port': 5050, # <-- port 5050
'server.socket_host': '0.0.0.0'
})
这将创建一个运行在端口8080上的nginx服务器,该服务器将/foo
请求代理到运行在端口5050上的cherrypy服务器
换句话说,对于在Flask应用程序中实现的假设端点/bar
,您应该看到这两个调用的相同结果:
curl localhost:5050/bar # hits the cherrypy server directly, bypassing nginx
curl localhost:8080/foo/bar # hits nginx, which matches on the `foo` prefix and forwards the request to cherrypy
这有点做作,但希望能说明主要问题:nginx和cherrypy是独立的服务器,因此它们都需要自己的端口。(如果您同时运行多个cherrypy服务器,则此模式特别方便,因为所有internet流量都可以定向到nginx,然后nginx可以向相应的cherrypy服务器发送调用。)
server {
listen 5050; # <-- port 5050
server {
listen 8080;
server_name localhost;
upstream my_cherrypy_svc {
server localhost:5050;
}
location /foo {
proxy_pass http://my_cherrypy_svc;
proxy_redirect default;
}
}
curl localhost:5050/bar # hits the cherrypy server directly, bypassing nginx
curl localhost:8080/foo/bar # hits nginx, which matches on the `foo` prefix and forwards the request to cherrypy