PHP Docker install php7-mysql

Question

For a while now, I'm trying to install the php7-mysql driver into different PHP docker containers from php/docker with no luck.

My Dockerfile looks like this:

# Dockerfile
FROM php:7.3-rc-apache-stretch
RUN apt-get update && apt-get upgrade -y

When I attach to the container and try to run

apt-get install php7.0-mysql

Debian stretch says that it has no installation candidate.

E: Package 'php7.0-mysql' has no installation candidate

What can I do to be able to install php7.0 modules to Debian Stretch?

Thanks in advance, this really took me some pomodores now!

Answer 1

It appears you are missing the repository for php7.

• Adding the php7 ppa:

  sudo add-apt-repository ppa:ondrej/php

• Then update:

  sudo apt-get update

• Now do a search to confirm php7 is there:

  sudo apt search php7

• Now install the php7 package:

  sudo apt install php7.0-mysql