How to run "composer require" inside docker by adding ssh-key?

Question

Docker

in the php container, I first run
docker-compose exec php php composer.phar install
to install symfony and everything that is written in composer.json and all dependencies are loaded normally
, then I have a private repository in composer.json, but when I do
docker-compose exec php php composer.phar require my/private
then there is no ssh key and ssh too and can't load it
how to do it?

Answer 1

Try mounting the key (and ssh.config, if desired) into the container.
If the command php composer.phar installis executed on behalf of rootinside the container, then the following lines should be in `docker-compose.yml`:

version: '2'
services:
  php:
    ...
    volumes:
      ...
      - /path/to/my.key:/root/.ssh/repo.key:ro
      ...
    ...