1# Build an image using the Dockerfile at current location (specified by '.' at the end) 2# Example: docker build -t [name] . 3docker build -t my_mongodb . To create a Dockerfile, see https://www.digitalocean.com/community/tutorials/docker-explained-using-dockerfiles-to-automate-building-of-images

Add this to Dockerfile 1RUN docker-php-ext-install mysqli See details in https://github.com/docker-library/php/issues/279