MySQLi not found dockerized php

Question

I\'m trying to dockerize my website. I\'ve got Nginx and PHP up and running and it\'s working find except I can\'t connect to a db. When the page is loaded I get the error:<

Answer 1

i had similar issue with
php:7-apache image, which by default will not have mysqli installed
you can verify this inside the container

$ docker exec -it  bash  

inside the docker container bash terminal

# docker-php-ext-enable mysqli

if mysqli is not installed which you will come to know from the output of above command

# docker-php-ext-install mysqli

then i commited this change so the same image

$ docker commit -p