Cannot parse server name for external Xdebug connection - phpstorm

Question

I have a Docker container with xdebug in it, when I run the script I need to form the Docker container I receive from PhpStorm the following message:
Cannot parse server name for external Xdebug connection.
To fix it create environment variable PHP_IDE_CONFIG on the remote server.
Windows: set PHP_IDE_CONFIG="serverName=SomeName"
Linux / Mac OS X: export PHP_IDE_CONFIG="serverName=SomeName".
but I have already set those environment variables as you can see in the screenshot here:
xdebug.log
Here is the xdebug section from my phpinfo():
And these are my settings for PhpStorm:
Environment from phpinfo():
PHP Variables from phpinfo():
I also tried to export env variables with and without quotes but the result was the same...
With quotes:
XDEBUG_CONFIG="remote_host=192.168.1.110"
PHP_IDE_CONFIG="serverName=docker-server"
Without quotes:
XDEBUG_CONFIG=remote_host=192.168.1.110
PHP_IDE_CONFIG=serverName=docker-server
The result from ifconfig en1 inet command from my MacOS where I'm running Docker and PhpStorm
You can also check the following files in cases needed:
Dockerfile.development
docker-compose.yml
environment.development
php.ini
Any help will be much appreciated!
Update:
Seems that if I add
environment:
XDEBUG_CONFIG: "remote_host=192.168.1.110"
PHP_IDE_CONFIG: "serverName=docker-server"
into my php service located inside docker-compose.yml it solves the issue but leaves me with a big question.
Since I have:
env_file:
- ./etc/environment.yml
- ./etc/environment.development.yml
and inside ./etc/environment.development.yml I have:
XDEBUG_CONFIG="remote_host=192.168.1.110"
PHP_IDE_CONFIG="serverName=docker-server"
And since it is not ignored and I can see that those Env variables are set even before I add environment property into my php service, why xdebug is only triggered when I have set the environment property? It feels like duplication for me to have it in both places and I prefer to have it inside ./etc/environment.development.yml rather than docker-compose.yml.

Answer 1

After some more digging,
I saw the following difference:
When I use env_file directive I had the following in my environment.development file:
XDEBUG_CONFIG="remote_host=192.168.1.110"
PHP_IDE_CONFIG="serverName=docker-server"
which resulted in:
Notice the double quotes around the value.
When I was removing env_file directive and put the following:
environment:
XDEBUG_CONFIG: "remote_host=192.168.1.110"
PHP_IDE_CONFIG: "serverName=docker-server"
Then I had this in phpinfo():
So in the end what I did was, I removed environment directive and put back the env_file directive and inside environment.development file I removed the double quotes around the value, so now it looks like that:
XDEBUG_CONFIG=remote_host=192.168.1.110
PHP_IDE_CONFIG=serverName=docker-server
And now it works fine :)
I filled a bug report in PhpStorm youtrack.

Answer 2

I had the same issue with double quotes but in docker-compose. First version was wrong, removing double quotes solved it:
environment:
- PHP_IDE_CONFIG="serverName=local"
- PHP_IDE_CONFIG=serverName=local