Does not have permission on var/generation

"Command line user does not have read and write permissions on var/generation directory. Please address this issue before using Magento command line."
Please help me!

[Snikme]

i installed "docker-machine-nfs" before executing "bin/console install {domain}" and it fixed the issue for me

[0m3r]

How can I fix it?
I try to change permissions inside container

docker exec -ti magento2_web_1 bash 
root@ecf3224c5689:/# chmod -R -v 777 /var/www/html/generated/
chmod: changing permissions of '/var/www/html/generated/': Read-only file system

I try to change ro read only permissions appdata: ro => - appdata
but it does not help me

docker exec -ti magento2_php_1 bash
www-data@3195d579da98:~/html$ chmod -R g+rws /var/www/html/generated
chmod: changing permissions of '/var/www/html/generated/.htaccess': Operation not permitted
www-data@3195d579da98:~/html$ su 
Password: 
su: Authentication failure

And I think here need to add somethink like
chmod -R ug+rws /var/www/html/generated

[0m3r]

#32