Question

无法使用具有公共IP地址的EC2 Ubuntu Linux 12.04实例启动bottle.py服务器。程序（hw.py）来自瓶子教程，即。

from bottle import route, run

@route('/hello')
def hello():
    return 'hello world'

run(host='xxx.xxx.xxx.xxx', port=80)

运行方式：

> python hw.py
or
> sudo python hw.py

生成错误：

Traceback (most recent call last):
  File "hw.py", line 7, in <module>
    run(host='xxx.xxx.xxx.xxx', port=80)
  File "/usr/local/lib/python2.7/dist-packages/bottle.py", line 2700, in run
    server.run(app)
  File "/usr/local/lib/python2.7/dist-packages/bottle.py", line 2382, in run
    srv = make_server(self.host, self.port, handler, **self.options)
  File "/usr/lib/python2.7/wsgiref/simple_server.py", line 144, in make_server
    server = server_class((host, port), handler_class)
  File "/usr/lib/python2.7/SocketServer.py", line 408, in __init__
    self.server_bind()
  File "/usr/lib/python2.7/wsgiref/simple_server.py", line 48, in server_bind
    HTTPServer.server_bind(self)
  File "/usr/lib/python2.7/BaseHTTPServer.py", line 108, in server_bind
    SocketServer.TCPServer.server_bind(self)
  File "/usr/lib/python2.7/SocketServer.py", line 419, in server_bind
    self.socket.bind(self.server_address)
  File "/usr/lib/python2.7/socket.py", line 224, in meth
    return getattr(self._sock,name)(*args)
socket.error: [Errno 99] Cannot assign requested address

EC2公共IP地址未附加到任何其他进程。端口80未附加到另一个进程。

> sudo netstat -lp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 *:ssh                   *:*                     LISTEN      629/sshd
tcp6       0      0 [::]:ssh                [::]:*                  LISTEN      629/sshd
udp        0      0 *:bootpc                *:*                                 463/dhclient3
Active UNIX domain sockets (only servers)
Proto RefCnt Flags       Type       State         I-Node   PID/Program name    Path
unix  2      [ ACC ]     STREAM     LISTENING     7190     667/dbus-daemon     /var/run/dbus/system_bus_socket
unix  2      [ ACC ]     STREAM     LISTENING     5888     1/init              @/com/ubuntu/upstart
unix  2      [ ACC ]     STREAM     LISTENING     7312     741/acpid           /var/run/acpid.socket
unix  2      [ ACC ]     SEQPACKET  LISTENING     26855    21843/udevd         /run/udev/control

更改为：run（host ='xxx.xxx.xxx.xxx'，port = 8080）

错误是socket.error：[Errno 99]无法分配请求的地址。

更改为：run（host ='0.0.0.0'，port = 8080）

...将服务器绑定到所有IP /接口。在有和没有的情况下将EC2公共IP地址键入浏览器：8080显示“此页面不可用”。

理想情况下，第一个选项即。 run（host ='xxx.xxx.xxx.xxx'，port = 80）应该可以正常运行，因为其他Web服务器的启动方式也是如此。任何人都有想法如何解决这个问题？

编辑：从strace -f：

添加最后一行

write(2, "  File \"/usr/lib/python2.7/Socke"..., 70  File "/usr/lib/python2.7/SocketServer.py", line 419, in server_bind
) = 70
open("/usr/lib/python2.7/SocketServer.py", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=23321, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f434cbfe000
read(4, "\"\"\"Generic socket server classes"..., 4096) = 4096
read(4, "service) is to maintain an\nexpli"..., 4096) = 4096
read(4, "set()\n\n    def shutdown(self):\n "..., 4096) = 4096
read(4, "n't use serve_forever()\n    - fi"..., 4096) = 4096
write(2, "    ", 4    )                     = 4
write(2, "self.socket.bind(self.server_add"..., 38self.socket.bind(self.server_address)
) = 38
close(4)                                = 0
munmap(0x7f434cbfe000, 4096)            = 0
write(2, "  File \"/usr/lib/python2.7/socke"..., 57  File "/usr/lib/python2.7/socket.py", line 224, in meth
) = 57
open("/usr/lib/python2.7/socket.py", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=20485, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f434cbfe000
read(4, "# Wrapper module for _socket, pr"..., 4096) = 4096
read(4, "oo long.\"\n    errorTab[10064] = "..., 4096) = 4096
write(2, "    ", 4    )                     = 4
write(2, "return getattr(self._sock,name)("..., 39return getattr(self._sock,name)(*args)
) = 39
close(4)                                = 0
munmap(0x7f434cbfe000, 4096)            = 0
write(2, "socket", 6socket)                   = 6
write(2, ".", 1.)                        = 1
write(2, "error", 5error)                    = 5
write(2, ": ", 2: )                       = 2
write(2, "[Errno 99] Cannot assign request"..., 42[Errno 99] Cannot assign requested address) = 42
write(2, "\n", 1
)                       = 1
rt_sigaction(SIGINT, {SIG_DFL, [], SA_RESTORER, 0x7f434c7d1cb0}, {0x41d920, [], SA_RESTORER, 0x7f434c7d1cb0}, 8) = 0
close(3)                                = 0
exit_group(1)                           = ?

Answer 1

试试这个。我用它来测试网络。

from bottle import Bottle, run

app = Bottle()

@app.route('/')
def index():
    return 'Service Running'

run(
        app,                    # Run |app| Bottle() instance
        host     = '0.0.0.0',
        port     = 8080,
        reloader = True,        # restarts the server every time edit a module file
        debug    = True         # Comment out it before deploy
        )

在服务器的后台运行此文件（hw.py）：

$ cd path/to/your/file
$ nohup python server.py &

然后我想你现在可以访问了。

更改为：run（host ='0.0.0.0'，port = 8080）

...将服务器绑定到所有IP /接口。在有和没有的情况下将EC2公共IP地址键入浏览器：8080显示“此页面不可用”。

出现此错误的情况，我认为您需要访问根网址末尾的/hello。

EC2，bottle.py连接

1 个答案: