4.0: Set bundle path via config before installing.

With Bundler >= 4.0, the CLI no longer accepts config options as part
of CLI. Set the path to a custom directory in a local directory with
`bundle config set --local path <path>` where applicable.

Author: jackorp

4.0/README.md

@@ -114,7 +114,8 @@ FROM ubi10/ruby-40
 
 USER 0
 ADD app-src ./
-RUN bundle install --path ./bundle
+RUN bundle config set --local path ./bundle && \
+      bundle install
 
 CMD bundle exec "rackup -P /tmp/rack.pid --host 0.0.0.0 --port 8080"
 ```

examples/from-dockerfile/Dockerfile

@@ -2,6 +2,7 @@ FROM ubi8/ruby-33
 
 ADD --chown=default:root app-src ./
 
-RUN bundle install --path ./bundle
+RUN bundle config set --local path ./bundle && \
+      bundle install
 
 CMD exec bundle exec "rackup -P /tmp/rack.pid --host 0.0.0.0 --port 8080"