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copied!<h2>Answer to your question</h2> <p>Bundler's <a href="http://gembundler.com/v1.3/bundle_package.html" rel="noreferrer"><code>bundle package --all</code></a> command will lock and cache all of your gem files into <code>./vendor/cache</code>, and you can run <code>bundle install --local</code> so it won't check rubygems.org in the future.</p> <h2>Comments on your question</h2> <p>This question made me cringe because, while I understand the interest in having a "base image" that you know works, it sounds like a few problems will spill over to other projects.</p> <ol> <li>Overburdened applications <ul> <li>Does each project really need all the same dependencies?</li> <li>If not, then you are bloating each install with unneeded dependencies.</li> </ul></li> <li>Brittle dependencies <ul> <li>You mention that your dependencies are very sensitive to each other, which sets off alarms.</li> <li>I don't fully understand what you mean by that, but it sounds like you should consider finding dependencies with more stable interfaces.</li> <li>Check out ruby-toolbox.com and keep an eye on the "Released" date.</li> </ul></li> <li>Outdated dependencies <ul> <li>Locking down versions means your new applications will not benefit from updates by the maintainers.</li> <li>(example) if you locked your rails dependency to 3.2.8 and continue to use it, you open yourself (and customers) to several major security holes.</li> <li>(possible fix) Look at <a href="http://docs.rubygems.org/read/chapter/16" rel="noreferrer">pessimistic version constraints</a> to allow your applications to receive non-breaking fixes.</li> </ul></li> </ol> <p>Best of luck.</p>

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