Add nested example to full mode and service mode #2524

Job	Run time
build-and-publish-test-image	17s
test-negative (dd-lib-ruby-init-test-rails-conflict)	1m 11s
test-negative (dd-lib-ruby-init-test-rails-bundle-deploy)	1m 16s
test (network, dd-lib-ruby-init-test-rails)	8m 11s
test (network, dd-lib-ruby-init-test-rails-explicit)	8m 44s
test (network, dd-lib-ruby-init-test-rails-gemsrb)	9m 56s
test (network, use-admission-controller, dd-lib-ruby-init-test-rails)	11m 10s
test (network, use-admission-controller, dd-lib-ruby-init-test-rails-explicit)	10m 20s
test (network, use-admission-controller, dd-lib-ruby-init-test-rails-gemsrb)	11m 13s
	1h 2m 18s

Provide feedback