轮询成功，但出错：操作正在进行中（29）。当Xdebug尝试从docker容器连接到PhpStorm时

Question

我正在尝试调试CLI脚本，而Xdebug无法连接到PhpStorm。
我Operation now in progress (29).在Xdebug远程日志中看到错误。
我确定Xdebug配置正确，但是我不知道如何调试PhpStorm。

由https://xdebug.org/wizard.php生成的phpinfo（）的摘要

Tailored Installation Instructions
Summary
Xdebug installed: 2.6.1
Server API: Command Line Interface
Windows: no
Zend Server: no
PHP Version: 7.1.24
Zend API nr: 320160303
PHP API nr: 20160303
Debug Build: no
Thread Safe Build: no
OPcache Loaded: no
Configuration File Path: /usr/local/etc/php
Configuration File: /usr/local/etc/php/php.ini
Extensions directory: /usr/local/lib/php/extensions/no-debug-non-zts-20160303
You're already running the latest Xdebug version

Xdebug日志

Log opened at 2019-02-19 11:59:37
I: Connecting to configured address/port: 46.201.50.194:9000.
W: Creating socket for '46.201.50.194:9000', poll success, but error: Operation now in progress (29).
E: Could not connect to client. :-(
Log closed at 2019-02-19 11:59:37

Xdebug配置

xdebug

xdebug support => enabled
Version => 2.6.1
IDE Key => PHPSTORM

Supported protocols
DBGp - Common DeBuGger Protocol

Directive => Local Value => Master Value
xdebug.auto_trace => Off => Off
xdebug.cli_color => 0 => 0
xdebug.collect_assignments => Off => Off
xdebug.collect_includes => On => On
xdebug.collect_params => 0 => 0
xdebug.collect_return => Off => Off
xdebug.collect_vars => Off => Off
xdebug.coverage_enable => On => On
xdebug.default_enable => On => On
xdebug.dump.COOKIE => no value => no value
xdebug.dump.ENV => no value => no value
xdebug.dump.FILES => no value => no value
xdebug.dump.GET => no value => no value
xdebug.dump.POST => no value => no value
xdebug.dump.REQUEST => no value => no value
xdebug.dump.SERVER => no value => no value
xdebug.dump.SESSION => no value => no value
xdebug.dump_globals => On => On
xdebug.dump_once => On => On
xdebug.dump_undefined => Off => Off
xdebug.extended_info => On => On
xdebug.file_link_format => no value => no value
xdebug.filename_format => no value => no value
xdebug.force_display_errors => Off => Off
xdebug.force_error_reporting => 0 => 0
xdebug.gc_stats_enable => Off => Off
xdebug.gc_stats_output_dir => /tmp => /tmp
xdebug.gc_stats_output_name => gcstats.%p => gcstats.%p
xdebug.halt_level => 0 => 0
xdebug.idekey => PHPSTORM => PHPSTORM
xdebug.max_nesting_level => 256 => 256
xdebug.max_stack_frames => -1 => -1
xdebug.overload_var_dump => 2 => 2
xdebug.profiler_aggregate => Off => Off
xdebug.profiler_append => Off => Off
xdebug.profiler_enable => Off => Off
xdebug.profiler_enable_trigger => Off => Off
xdebug.profiler_enable_trigger_value => no value => no value
xdebug.profiler_output_dir => /tmp => /tmp
xdebug.profiler_output_name => cachegrind.out.%p => cachegrind.out.%p
xdebug.remote_addr_header => no value => no value
xdebug.remote_autostart => On => On
xdebug.remote_connect_back => Off => Off
xdebug.remote_cookie_expire_time => 3600 => 3600
xdebug.remote_enable => On => On
xdebug.remote_handler => dbgp => dbgp
xdebug.remote_host => 127.0.0.1 => localhost
xdebug.remote_log => /app/xdebug.log => no value
xdebug.remote_mode => req => req
xdebug.remote_port => 9000 => 9000
xdebug.remote_timeout => 200 => 200
xdebug.scream => Off => Off
xdebug.show_error_trace => Off => Off
xdebug.show_exception_trace => Off => Off
xdebug.show_local_vars => Off => Off
xdebug.show_mem_delta => Off => Off
xdebug.trace_enable_trigger => Off => Off
xdebug.trace_enable_trigger_value => no value => no value
xdebug.trace_format => 0 => 0
xdebug.trace_options => 0 => 0
xdebug.trace_output_dir => /tmp => /tmp
xdebug.trace_output_name => trace.%c => trace.%c
xdebug.var_display_max_children => 128 => 128
xdebug.var_display_max_data => 512 => 512
xdebug.var_display_max_depth => 3 => 3

Answer 1

Xdebug 无法连接到 PhpStorm，因为我的外部主机 IP 无法访问 PhpStorm。我如何调试它。首先，我从 docker 容器中检查了 PhpStorm 侦听端口（在我的情况下为 9000）

nc -vz external_ip 9000

它让(tcp) failed: Connection refused
我从主机上尝试了同样的方法，也得到了错误然后我从主机上尝试

nc -vz localhost 9000

我得到了[tcp/*] succeeded! 所以 xdebug.remote_host 中的问题可能不在 PhpStorm 中

我在容器中找到主机 ip

netstat -nr | grep '^0\.0\.0\.0' | awk '{print $2}'

把它放在 xdebug.remote_host 中，现在它可以正常工作了

感谢@LazyOne

Answer 2

就我而言，我只需设置以下xdebug conf：

xdebug.remote_connect_back=0
xdebug.remote_host=host.docker.internal

host.docker.internal应该“神奇地”找到主机的IP（请参阅说明文件）。请注意，这需要Docker v18.03 +，目前仅在Mac和Windows主机上可用。