Linux + Visual Studio Code + Docker

config.md

Configurations

php.ini file configuration to docker:

xdebug.idekey = "VSCODE"
xdebug.remote_enable = 1
xdebug.remote_autostart = 1
xdebug.remote_port = 9000
xdebug.remote_host = <ip-of-docker0-bridge-network>

launch.json file configuration to vscode-php

...
  "port": 9000,
    "pathMappings": {
      "/var/www/src": "${workspaceRoot}/src",
      "/var/www/src/app": "${workspaceRoot}/src/app"
    }
  },
...

View articles:
http://ramkulkarni.com/blog/setting-up-and-debugging-php7-in-docker/
https://github.com/felixfbecker/vscode-php-debug