You can see an example of configuring and using Ruby and Bundler with batect in the Ruby sample project.
BUNDLE_PATH environment variable to a directory within your mounted code directory, otherwise you'll have to download your dependencies every
time the build runs
By default, Bundler downloads all of your application's dependencies to the
~/.bundle directory. However, because batect destroys all of your containers once
the task finishes, this directory is lost at the end of every task run - which means that Bundler will have to download all of your dependencies again,
significantly slowing down the build.
The solution to this is to set the
BUNDLE_PATH environment variable to a directory that persists between builds.
If you're already mounting your application's code into the container, then the simplest thing to do is to set
BUNDLE_PATH to a directory within that mounted
directory. For example, if you're mounting your application's code into the container at