Cannot run npm install from container

[derekherman]

If you run npm run docker -- npm install from the container then you will get an error when composer tries to run.

npm WARN lifecycle @xwp/block-scaffolding-wp@1.0.0~postinstall: cannot run in wd @xwp/block-scaffolding-wp@1.0.0 composer install (wd=/var/www/html/wp-content/plugins/block-scaffolding-wp)

Basically, NPM tries to downgrade its privileges when it runs scripts. So you have to actually run it like so:

npm run docker -- npm install --unsafe-perm

[kasparsd]

This is because the WordPress apache image runs as root to be able to start the apache web server on container start (which calls apache2-foreground):

$ npm run docker -- whoami
root

Until we switch to our own images the solution is to specify the user in the docker wrapper script:

docker-compose run --user=1000 --workdir=/var/www/html/wp-content/plugins/block-scaffolding-wp wordpress

Since wp-content/plugins/block-scaffolding-wp wordpress is bind mounted to a local directory, the user should be the same as the local host user.