Merge pull request cloudfoundry#1600 from akhinos/kpack-env

[WIP] Add environment variables to kpack image CR

[#172301179]

Author: Aakash Shah

lib/cloud_controller/kpack/stager.rb

@@ -75,6 +75,11 @@ def image_resource(staging_details)
             blob: {
               url: blobstore_url_generator.package_download_url(staging_details.package),
             }
+          },
+          build: {
+            env: staging_details.environment_variables.to_a.
+                  delete_if { |key, value| key == 'VCAP_SERVICES' }.
+                  map { |key, value| { name: key, value: value.to_s } }
           }
         }
       })

spec/unit/lib/cloud_controller/kpack/stager_spec.rb

@@ -11,7 +11,7 @@ module Kpack
     )
     }
     let(:package) { VCAP::CloudController::PackageModel.make }
-    let(:environment_variables) { { 'nightshade_vegetable' => 'potato' } }
+    let(:environment_variables) { { 'BP_JAVA_VERSION' => '8.*', 'BPL_HEAD_ROOM' => 0, 'VCAP_SERVICES' => { postgres: [] } } }
     let(:staging_memory_in_mb) { 1024 }
     let(:staging_disk_in_mb) { 1024 }
     let(:blobstore_url_generator) do
@@ -77,6 +77,9 @@ module Kpack
               blob: {
                 url: 'package-download-url',
               }
+            },
+            build: {
+              env: [{ name: 'BP_JAVA_VERSION', value: '8.*' }, { name: 'BPL_HEAD_ROOM', value: '0' }]
             }
           }
         }))