Document how to change for additional steps about rails-ex

[chargio]

I've create more .s2i/save-artifacts and .s2i/assemble (with execution rights). But nothing happens

[chargio]

It was in .s2i/bin/assemble, now I've got passed that moment.
Executing

gem install bundler -f
npm install yarn
node_modules/yarn/bin/yarn install

[chargio]

The build got stuck with yarn ...:(
Modifying it for bower (deprecated, by the way)

[chargio]

My .s2i/bin/assemble file installs the latest bundler, bower, and install javascript:

#!/bin/bash
echo "Updating bundler to new version"
cd $HOME
gem install bundler -f
echo "moving bundler to /tmp/src"
cp -r ./bin /tmp/src
rm -rf ./bin/

echo "Executing original script:"
/usr/libexec/s2i/assemble
rc=$?

if [ $rc -eq 0 ]; then
    echo "After successful assembling"
    npm install bower
    node_modules/bower/bin/bower install
    echo "Finished install bower assets"
else
    echo "After failed assembling"
fi

exit $rc

[coreydaley]

Documentation for how to perform additional instructions are located in the docs folder of this repository here: https://github.com/openshift/source-to-image/tree/master/docs

information specific to the assemble script is located in this user guide: https://github.com/openshift/source-to-image/blob/master/docs/user_guide.md