[ARVADOS] updated: 1.3.0-734-g1346cc507

Git user git at public.curoverse.com
Thu Apr 11 12:51:26 UTC 2019


Summary of changes:
 .../api/app/models/api_client_authorization.rb     |  4 +-
 services/api/app/models/collection.rb              |  2 +-
 services/api/config/arvados_config.rb              | 13 +++---
 services/api/lib/config_loader.rb                  | 21 +++++++++-
 .../arvados/v1/collections_controller_test.rb      | 30 +++++++-------
 .../arvados/v1/groups_controller_test.rb           |  4 +-
 .../functional/arvados/v1/jobs_controller_test.rb  | 10 ++---
 .../functional/arvados/v1/nodes_controller_test.rb |  2 +-
 .../arvados/v1/schema_controller_test.rb           |  8 ++--
 .../functional/arvados/v1/users_controller_test.rb |  4 +-
 services/api/test/helpers/git_test_helper.rb       |  8 ++--
 .../api/test/integration/collections_api_test.rb   |  6 +--
 services/api/test/integration/groups_test.rb       |  2 +-
 services/api/test/integration/remote_user_test.rb  |  6 +--
 .../api/test/integration/user_sessions_test.rb     |  6 +--
 .../test/tasks/delete_old_container_logs_test.rb   |  2 +-
 .../api/test/tasks/delete_old_job_logs_test.rb     |  2 +-
 services/api/test/unit/blob_test.rb                |  6 +--
 services/api/test/unit/collection_test.rb          | 46 +++++++++++-----------
 services/api/test/unit/commit_test.rb              |  8 ++--
 services/api/test/unit/container_request_test.rb   | 26 ++++++------
 services/api/test/unit/container_test.rb           |  6 +--
 services/api/test/unit/crunch_dispatch_test.rb     |  6 +--
 services/api/test/unit/fail_jobs_test.rb           |  6 +--
 services/api/test/unit/job_test.rb                 | 32 +++++++--------
 services/api/test/unit/log_test.rb                 | 12 +++---
 services/api/test/unit/node_test.rb                | 38 +++++++++---------
 services/api/test/unit/repository_test.rb          |  2 +-
 services/api/test/unit/user_notifier_test.rb       |  4 +-
 services/api/test/unit/user_test.rb                | 44 ++++++++++-----------
 30 files changed, 194 insertions(+), 172 deletions(-)

       via  1346cc5072843797a8091cd67a0eb75499a97642 (commit)
       via  648a56262d7b5b1c550077341f81cc98e1850305 (commit)
      from  4475be5167afe63bef3ffe2b8145d35aaebe4761 (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.


commit 1346cc5072843797a8091cd67a0eb75499a97642
Author: Peter Amstutz <pamstutz at veritasgenetics.com>
Date:   Wed Apr 10 17:44:29 2019 -0400

    13996: Update tests for cleaner config access
    
    Arvados-DCO-1.1-Signed-off-by: Peter Amstutz <pamstutz at veritasgenetics.com>

diff --git a/services/api/test/functional/arvados/v1/collections_controller_test.rb b/services/api/test/functional/arvados/v1/collections_controller_test.rb
index 7d67668c6..cc545b2fd 100644
--- a/services/api/test/functional/arvados/v1/collections_controller_test.rb
+++ b/services/api/test/functional/arvados/v1/collections_controller_test.rb
@@ -11,7 +11,7 @@ class Arvados::V1::CollectionsControllerTest < ActionController::TestCase
 
   def permit_unsigned_manifests isok=true
     # Set security model for the life of a test.
-    Rails.configuration.Collections["BlobSigning"] = !isok
+    Rails.configuration.Collections.BlobSigning = !isok
   end
 
   def assert_signed_manifest manifest_text, label='', token: false
@@ -24,7 +24,7 @@ class Arvados::V1::CollectionsControllerTest < ActionController::TestCase
         exp = tok[/\+A[[:xdigit:]]+@([[:xdigit:]]+)/, 1].to_i(16)
         sig = Blob.sign_locator(
           bare,
-          key: Rails.configuration.Collections["BlobSigningKey"],
+          key: Rails.configuration.Collections.BlobSigningKey,
           expire: exp,
           api_token: token)[/\+A[^\+]*/, 0]
         assert_includes tok, sig
@@ -88,7 +88,7 @@ class Arvados::V1::CollectionsControllerTest < ActionController::TestCase
       token = api_client_authorizations(:active).send(token_method)
       signed = Blob.sign_locator(
         'acbd18db4cc2f85cedef654fccc4a4d8+3',
-        key: Rails.configuration.Collections["BlobSigningKey"],
+        key: Rails.configuration.Collections.BlobSigningKey,
         api_token: token)
       authorize_with_token token
       put :update, params: {
@@ -221,7 +221,7 @@ class Arvados::V1::CollectionsControllerTest < ActionController::TestCase
   def request_capped_index(params={})
     authorize_with :user1_with_load
     coll1 = collections(:collection_1_of_201)
-    Rails.configuration.API["MaxIndexDatabaseRead"] =
+    Rails.configuration.API.MaxIndexDatabaseRead =
       yield(coll1.manifest_text.size)
     get :index, params: {
       select: %w(uuid manifest_text),
@@ -566,7 +566,7 @@ EOS
 
       # Build a manifest with both signed and unsigned locators.
       signing_opts = {
-        key: Rails.configuration.Collections["BlobSigningKey"],
+        key: Rails.configuration.Collections.BlobSigningKey,
         api_token: api_token(:active),
       }
       signed_locators = locators.collect do |x|
@@ -622,7 +622,7 @@ EOS
     # TODO(twp): in phase 4, all locators will need to be signed, so
     # this test should break and will need to be rewritten. Issue #2755.
     signing_opts = {
-      key: Rails.configuration.Collections["BlobSigningKey"],
+      key: Rails.configuration.Collections.BlobSigningKey,
       api_token: api_token(:active),
       ttl: 3600   # 1 hour
     }
@@ -653,7 +653,7 @@ EOS
   test "create fails with invalid signature" do
     authorize_with :active
     signing_opts = {
-      key: Rails.configuration.Collections["BlobSigningKey"],
+      key: Rails.configuration.Collections.BlobSigningKey,
       api_token: api_token(:active),
     }
 
@@ -683,7 +683,7 @@ EOS
   test "create fails with uuid of signed manifest" do
     authorize_with :active
     signing_opts = {
-      key: Rails.configuration.Collections["BlobSigningKey"],
+      key: Rails.configuration.Collections.BlobSigningKey,
       api_token: api_token(:active),
     }
 
@@ -755,7 +755,7 @@ EOS
       ea10d51bcf88862dbcc36eb292017dfd+45)
 
     signing_opts = {
-      key: Rails.configuration.Collections["BlobSigningKey"],
+      key: Rails.configuration.Collections.BlobSigningKey,
       api_token: api_token(:active),
     }
 
@@ -903,7 +903,7 @@ EOS
 
   [1, 5, nil].each do |ask|
     test "Set replication_desired=#{ask.inspect}" do
-      Rails.configuration.Collections["DefaultReplication"] = 2
+      Rails.configuration.Collections.DefaultReplication = 2
       authorize_with :active
       put :update, params: {
         id: collections(:replication_undesired_unconfirmed).uuid,
@@ -1176,7 +1176,7 @@ EOS
     assert_response 200
     c = Collection.find_by_uuid(uuid)
     assert_operator c.trash_at, :<, db_current_time
-    assert_equal c.delete_at, c.trash_at + Rails.configuration.Collections["BlobSigningTTL"]
+    assert_equal c.delete_at, c.trash_at + Rails.configuration.Collections.BlobSigningTTL
   end
 
   test 'delete long-trashed collection immediately using http DELETE verb' do
@@ -1208,7 +1208,7 @@ EOS
       assert_response 200
       c = Collection.find_by_uuid(uuid)
       assert_operator c.trash_at, :<, db_current_time
-      assert_operator c.delete_at, :>=, time_before_trashing + Rails.configuration.Collections["DefaultTrashLifetime"]
+      assert_operator c.delete_at, :>=, time_before_trashing + Rails.configuration.Collections.DefaultTrashLifetime
     end
   end
 
@@ -1373,8 +1373,8 @@ EOS
   end
 
   test "update collection with versioning enabled" do
-    Rails.configuration.Collections["CollectionVersioning"] = true
-    Rails.configuration.Collections["PreserveVersionIfIdle"] = 1 # 1 second
+    Rails.configuration.Collections.CollectionVersioning = true
+    Rails.configuration.Collections.PreserveVersionIfIdle = 1 # 1 second
 
     col = collections(:collection_owned_by_active)
     assert_equal 2, col.version
@@ -1383,7 +1383,7 @@ EOS
     token = api_client_authorizations(:active).v2token
     signed = Blob.sign_locator(
       'acbd18db4cc2f85cedef654fccc4a4d8+3',
-      key: Rails.configuration.Collections["BlobSigningKey"],
+      key: Rails.configuration.Collections.BlobSigningKey,
       api_token: token)
     authorize_with_token token
     put :update, params: {
diff --git a/services/api/test/functional/arvados/v1/groups_controller_test.rb b/services/api/test/functional/arvados/v1/groups_controller_test.rb
index ff86f0493..cefb7f383 100644
--- a/services/api/test/functional/arvados/v1/groups_controller_test.rb
+++ b/services/api/test/functional/arvados/v1/groups_controller_test.rb
@@ -431,7 +431,7 @@ class Arvados::V1::GroupsControllerTest < ActionController::TestCase
   end
 
   test 'get contents with jobs and pipeline instances disabled' do
-    Rails.configuration.API["DisabledAPIs"] = ['jobs.index', 'pipeline_instances.index']
+    Rails.configuration.API.DisabledAPIs = ['jobs.index', 'pipeline_instances.index']
 
     authorize_with :active
     get :contents, params: {
@@ -444,7 +444,7 @@ class Arvados::V1::GroupsControllerTest < ActionController::TestCase
   test 'get contents with low max_index_database_read' do
     # Some result will certainly have at least 12 bytes in a
     # restricted column
-    Rails.configuration.API["MaxIndexDatabaseRead"] = 12
+    Rails.configuration.API.MaxIndexDatabaseRead = 12
     authorize_with :active
     get :contents, params: {
           id: groups(:aproject).uuid,
diff --git a/services/api/test/functional/arvados/v1/jobs_controller_test.rb b/services/api/test/functional/arvados/v1/jobs_controller_test.rb
index 8bbe96687..b3e10bf4a 100644
--- a/services/api/test/functional/arvados/v1/jobs_controller_test.rb
+++ b/services/api/test/functional/arvados/v1/jobs_controller_test.rb
@@ -83,7 +83,7 @@ class Arvados::V1::JobsControllerTest < ActionController::TestCase
     # We need to verify that "cancel" creates a trigger file, so first
     # let's make sure there is no stale trigger file.
     begin
-      File.unlink(Rails.configuration.Containers["JobsAPI"]["CrunchRefreshTrigger"])
+      File.unlink(Rails.configuration.Containers.JobsAPI.CrunchRefreshTrigger)
     rescue Errno::ENOENT
     end
 
@@ -105,7 +105,7 @@ class Arvados::V1::JobsControllerTest < ActionController::TestCase
                  'server should correct bogus cancelled_at ' +
                  job['cancelled_at'])
     assert_equal(true,
-                 File.exist?(Rails.configuration.Containers["JobsAPI"]["CrunchRefreshTrigger"]),
+                 File.exist?(Rails.configuration.Containers.JobsAPI.CrunchRefreshTrigger),
                  'trigger file should be created when job is cancelled')
   end
 
@@ -123,7 +123,7 @@ class Arvados::V1::JobsControllerTest < ActionController::TestCase
       # We need to verify that "cancel" creates a trigger file, so first
       # let's make sure there is no stale trigger file.
       begin
-        File.unlink(Rails.configuration.Containers["JobsAPI"]["CrunchRefreshTrigger"])
+        File.unlink(Rails.configuration.Containers.JobsAPI.CrunchRefreshTrigger)
       rescue Errno::ENOENT
       end
 
@@ -144,7 +144,7 @@ class Arvados::V1::JobsControllerTest < ActionController::TestCase
     # We need to verify that "cancel" creates a trigger file, so first
     # let's make sure there is no stale trigger file.
     begin
-      File.unlink(Rails.configuration.Containers["JobsAPI"]["CrunchRefreshTrigger"])
+      File.unlink(Rails.configuration.Containers.JobsAPI.CrunchRefreshTrigger)
     rescue Errno::ENOENT
     end
 
@@ -480,7 +480,7 @@ class Arvados::V1::JobsControllerTest < ActionController::TestCase
   end
 
   test 'jobs.create disabled in config' do
-    Rails.configuration.API["DisabledAPIs"] = ["jobs.create",
+    Rails.configuration.API.DisabledAPIs = ["jobs.create",
                                                "pipeline_instances.create"]
     authorize_with :active
     post :create, params: {
diff --git a/services/api/test/functional/arvados/v1/nodes_controller_test.rb b/services/api/test/functional/arvados/v1/nodes_controller_test.rb
index 435764baa..c61a57ecc 100644
--- a/services/api/test/functional/arvados/v1/nodes_controller_test.rb
+++ b/services/api/test/functional/arvados/v1/nodes_controller_test.rb
@@ -223,7 +223,7 @@ class Arvados::V1::NodesControllerTest < ActionController::TestCase
   end
 
   test "node should fail ping with invalid hostname config format" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["AssignNodeHostname"] = 'compute%<slot_number>04'  # should end with "04d"
+    Rails.configuration.Containers.SLURM.Managed.AssignNodeHostname = 'compute%<slot_number>04'  # should end with "04d"
     post :ping, params: {
       id: nodes(:new_with_no_hostname).uuid,
       ping_secret: nodes(:new_with_no_hostname).info['ping_secret'],
diff --git a/services/api/test/functional/arvados/v1/schema_controller_test.rb b/services/api/test/functional/arvados/v1/schema_controller_test.rb
index 80cd6de16..e62faa331 100644
--- a/services/api/test/functional/arvados/v1/schema_controller_test.rb
+++ b/services/api/test/functional/arvados/v1/schema_controller_test.rb
@@ -29,12 +29,12 @@ class Arvados::V1::SchemaControllerTest < ActionController::TestCase
     assert_response :success
     discovery_doc = JSON.parse(@response.body)
     assert_includes discovery_doc, 'defaultTrashLifetime'
-    assert_equal discovery_doc['defaultTrashLifetime'], Rails.configuration.Collections["DefaultTrashLifetime"]
+    assert_equal discovery_doc['defaultTrashLifetime'], Rails.configuration.Collections.DefaultTrashLifetime
     assert_match(/^[0-9a-f]+(-modified)?$/, discovery_doc['source_version'])
     assert_match(/^[0-9a-f]+(-modified)?$/, discovery_doc['sourceVersion'])
     assert_match(/^unknown$/, discovery_doc['packageVersion'])
-    assert_equal discovery_doc['websocketUrl'], Rails.configuration.Services["Websocket"]["ExternalURL"].to_s
-    assert_equal discovery_doc['workbenchUrl'], Rails.configuration.Services["Workbench1"]["ExternalURL"].to_s
+    assert_equal discovery_doc['websocketUrl'], Rails.configuration.Services.Websocket.ExternalURL.to_s
+    assert_equal discovery_doc['workbenchUrl'], Rails.configuration.Services.Workbench1.ExternalURL.to_s
     assert_equal('zzzzz', discovery_doc['uuidPrefix'])
   end
 
@@ -65,7 +65,7 @@ class Arvados::V1::SchemaControllerTest < ActionController::TestCase
   end
 
   test "non-empty disable_api_methods" do
-    Rails.configuration.API["DisabledAPIs"] =
+    Rails.configuration.API.DisabledAPIs =
       ['jobs.create', 'pipeline_instances.create', 'pipeline_templates.create']
     get :index
     assert_response :success
diff --git a/services/api/test/functional/arvados/v1/users_controller_test.rb b/services/api/test/functional/arvados/v1/users_controller_test.rb
index 66e32713e..0501da167 100644
--- a/services/api/test/functional/arvados/v1/users_controller_test.rb
+++ b/services/api/test/functional/arvados/v1/users_controller_test.rb
@@ -638,12 +638,12 @@ class Arvados::V1::UsersControllerTest < ActionController::TestCase
     setup_email = ActionMailer::Base.deliveries.last
     assert_not_nil setup_email, 'Expected email after setup'
 
-    assert_equal Rails.configuration.Users["UserNotifierEmailFrom"], setup_email.from[0]
+    assert_equal Rails.configuration.Users.UserNotifierEmailFrom, setup_email.from[0]
     assert_equal 'foo at example.com', setup_email.to[0]
     assert_equal 'Welcome to Arvados - shell account enabled', setup_email.subject
     assert (setup_email.body.to_s.include? 'Your Arvados shell account has been set up'),
         'Expected Your Arvados shell account has been set up in email body'
-    assert (setup_email.body.to_s.include? "#{Rails.configuration.Services["Workbench1"]["ExternalURL"]}users/#{created['uuid']}/virtual_machines"), 'Expected virtual machines url in email body'
+    assert (setup_email.body.to_s.include? "#{Rails.configuration.Services.Workbench1.ExternalURL}users/#{created['uuid']}/virtual_machines"), 'Expected virtual machines url in email body'
   end
 
   test "setup inactive user by changing is_active to true" do
diff --git a/services/api/test/helpers/git_test_helper.rb b/services/api/test/helpers/git_test_helper.rb
index 7ad9bcad1..03189bdfe 100644
--- a/services/api/test/helpers/git_test_helper.rb
+++ b/services/api/test/helpers/git_test_helper.rb
@@ -19,14 +19,14 @@ module GitTestHelper
   def self.included base
     base.setup do
       # Extract the test repository data into the default test
-      # environment's Rails.configuration.Git["Repositories"]. (We
+      # environment's Rails.configuration.Git.Repositories. (We
       # don't use that config setting here, though: it doesn't seem
       # worth the risk of stepping on a real git repo root.)
       @tmpdir = Rails.root.join 'tmp', 'git'
       FileUtils.mkdir_p @tmpdir
       system("tar", "-xC", @tmpdir.to_s, "-f", "test/test.git.tar")
-      Rails.configuration.Git["Repositories"] = "#{@tmpdir}/test"
-      Rails.configuration.Containers["JobsAPI"]["GitInternalDir"] = "#{@tmpdir}/internal.git"
+      Rails.configuration.Git.Repositories = "#{@tmpdir}/test"
+      Rails.configuration.Containers.JobsAPI.GitInternalDir = "#{@tmpdir}/internal.git"
     end
 
     base.teardown do
@@ -37,7 +37,7 @@ module GitTestHelper
   end
 
   def internal_tag tag
-    IO.read "|git --git-dir #{Rails.configuration.Containers["JobsAPI"]["GitInternalDir"].shellescape} log --format=format:%H -n1 #{tag.shellescape}"
+    IO.read "|git --git-dir #{Rails.configuration.Containers.JobsAPI.GitInternalDir.shellescape} log --format=format:%H -n1 #{tag.shellescape}"
   end
 
   # Intercept fetch_remote_repository and fetch from a specified url
diff --git a/services/api/test/integration/collections_api_test.rb b/services/api/test/integration/collections_api_test.rb
index e82172b55..ab1a3e69d 100644
--- a/services/api/test/integration/collections_api_test.rb
+++ b/services/api/test/integration/collections_api_test.rb
@@ -129,7 +129,7 @@ class CollectionsApiTest < ActionDispatch::IntegrationTest
 
   test "store collection as json" do
     signing_opts = {
-      key: Rails.configuration.Collections["BlobSigningKey"],
+      key: Rails.configuration.Collections.BlobSigningKey,
       api_token: api_token(:active),
     }
     signed_locator = Blob.sign_locator('bad42fa702ae3ea7d888fef11b46f450+44',
@@ -146,7 +146,7 @@ class CollectionsApiTest < ActionDispatch::IntegrationTest
 
   test "store collection with manifest_text only" do
     signing_opts = {
-      key: Rails.configuration.Collections["BlobSigningKey"],
+      key: Rails.configuration.Collections.BlobSigningKey,
       api_token: api_token(:active),
     }
     signed_locator = Blob.sign_locator('bad42fa702ae3ea7d888fef11b46f450+44',
@@ -163,7 +163,7 @@ class CollectionsApiTest < ActionDispatch::IntegrationTest
 
   test "store collection then update name" do
     signing_opts = {
-      key: Rails.configuration.Collections["BlobSigningKey"],
+      key: Rails.configuration.Collections.BlobSigningKey,
       api_token: api_token(:active),
     }
     signed_locator = Blob.sign_locator('bad42fa702ae3ea7d888fef11b46f450+44',
diff --git a/services/api/test/integration/groups_test.rb b/services/api/test/integration/groups_test.rb
index 9c2d023c0..eb97fc1f4 100644
--- a/services/api/test/integration/groups_test.rb
+++ b/services/api/test/integration/groups_test.rb
@@ -194,7 +194,7 @@ class NonTransactionalGroupsTest < ActionDispatch::IntegrationTest
   end
 
   test "create request with async=true defers permissions update" do
-    Rails.configuration.API["AsyncPermissionsUpdateInterval"] = 1 # second
+    Rails.configuration.API.AsyncPermissionsUpdateInterval = 1 # second
     name = "Random group #{rand(1000)}"
     assert_equal nil, Group.find_by_name(name)
 
diff --git a/services/api/test/integration/remote_user_test.rb b/services/api/test/integration/remote_user_test.rb
index 511a02410..90a558653 100644
--- a/services/api/test/integration/remote_user_test.rb
+++ b/services/api/test/integration/remote_user_test.rb
@@ -243,7 +243,7 @@ class RemoteUsersTest < ActionDispatch::IntegrationTest
   end
 
   test 'auto-activate user from trusted cluster' do
-    Rails.configuration.RemoteClusters['zbbbb']["ActivateUsers"] = true
+    Rails.configuration.RemoteClusters['zbbbb'].ActivateUsers = true
     get '/arvados/v1/users/current',
       params: {format: 'json'},
       headers: auth(remote: 'zbbbb')
diff --git a/services/api/test/integration/user_sessions_test.rb b/services/api/test/integration/user_sessions_test.rb
index e72562692..fdb8628c5 100644
--- a/services/api/test/integration/user_sessions_test.rb
+++ b/services/api/test/integration/user_sessions_test.rb
@@ -111,10 +111,10 @@ class UserSessionsApiTest < ActionDispatch::IntegrationTest
    ].each do |testcase|
     test "user auto-activate #{testcase.inspect}" do
       # Configure auto_setup behavior according to testcase[:cfg]
-      Rails.configuration.Users["AutoSetupNewUsers"] = testcase[:cfg][:auto]
-      Rails.configuration.Users["AutoSetupNewUsersWithVmUUID"] =
+      Rails.configuration.Users.AutoSetupNewUsers = testcase[:cfg][:auto]
+      Rails.configuration.Users.AutoSetupNewUsersWithVmUUID =
         (testcase[:cfg][:vm] ? virtual_machines(:testvm).uuid : "")
-      Rails.configuration.Users["AutoSetupNewUsersWithRepository"] =
+      Rails.configuration.Users.AutoSetupNewUsersWithRepository =
         testcase[:cfg][:repo]
 
       mock_auth_with(email: testcase[:email])
diff --git a/services/api/test/tasks/delete_old_container_logs_test.rb b/services/api/test/tasks/delete_old_container_logs_test.rb
index 0403ceb2e..c81b331f2 100644
--- a/services/api/test/tasks/delete_old_container_logs_test.rb
+++ b/services/api/test/tasks/delete_old_container_logs_test.rb
@@ -16,7 +16,7 @@ class DeleteOldContainerLogsTaskTest < ActiveSupport::TestCase
   end
 
   def run_with_expiry(clean_after)
-    Rails.configuration.Containers["Logging"]["MaxAge"] = clean_after
+    Rails.configuration.Containers.Logging.MaxAge = clean_after
     Rake::Task[TASK_NAME].reenable
     Rake.application.invoke_task TASK_NAME
   end
diff --git a/services/api/test/tasks/delete_old_job_logs_test.rb b/services/api/test/tasks/delete_old_job_logs_test.rb
index 6a793e1e0..00660431c 100644
--- a/services/api/test/tasks/delete_old_job_logs_test.rb
+++ b/services/api/test/tasks/delete_old_job_logs_test.rb
@@ -16,7 +16,7 @@ class DeleteOldJobLogsTaskTest < ActiveSupport::TestCase
   end
 
   def run_with_expiry(clean_after)
-    Rails.configuration.Containers["Logging"]["MaxAge"] = clean_after
+    Rails.configuration.Containers.Logging.MaxAge = clean_after
     Rake::Task[TASK_NAME].reenable
     Rake.application.invoke_task TASK_NAME
   end
diff --git a/services/api/test/unit/blob_test.rb b/services/api/test/unit/blob_test.rb
index ad083946d..293e28e4f 100644
--- a/services/api/test/unit/blob_test.rb
+++ b/services/api/test/unit/blob_test.rb
@@ -130,14 +130,14 @@ class BlobTest < ActiveSupport::TestCase
       expire: 0x7fffffff,
     }
 
-    original_ttl = Rails.configuration.Collections["BlobSigningTTL"]
-    Rails.configuration.Collections["BlobSigningTTL"] = original_ttl*2
+    original_ttl = Rails.configuration.Collections.BlobSigningTTL
+    Rails.configuration.Collections.BlobSigningTTL = original_ttl*2
     signed2 = Blob.sign_locator @@known_locator, {
       api_token: @@known_token,
       key: @@known_key,
       expire: 0x7fffffff,
     }
-    Rails.configuration.Collections["BlobSigningTTL"] = original_ttl
+    Rails.configuration.Collections.BlobSigningTTL = original_ttl
 
     assert_not_equal signed, signed2
   end
diff --git a/services/api/test/unit/collection_test.rb b/services/api/test/unit/collection_test.rb
index 0ae9a0218..477f9e275 100644
--- a/services/api/test/unit/collection_test.rb
+++ b/services/api/test/unit/collection_test.rb
@@ -157,8 +157,8 @@ class CollectionTest < ActiveSupport::TestCase
   end
 
   test "auto-create version after idle setting" do
-    Rails.configuration.Collections["CollectionVersioning"] = true
-    Rails.configuration.Collections["PreserveVersionIfIdle"] = 600 # 10 minutes
+    Rails.configuration.Collections.CollectionVersioning = true
+    Rails.configuration.Collections.PreserveVersionIfIdle = 600 # 10 minutes
     act_as_user users(:active) do
       # Set up initial collection
       c = create_collection 'foo', Encoding::US_ASCII
@@ -188,8 +188,8 @@ class CollectionTest < ActiveSupport::TestCase
   end
 
   test "preserve_version=false assignment is ignored while being true and not producing a new version" do
-    Rails.configuration.Collections["CollectionVersioning"] = true
-    Rails.configuration.Collections["PreserveVersionIfIdle"] = 3600
+    Rails.configuration.Collections.CollectionVersioning = true
+    Rails.configuration.Collections.PreserveVersionIfIdle = 3600
     act_as_user users(:active) do
       # Set up initial collection
       c = create_collection 'foo', Encoding::US_ASCII
@@ -244,8 +244,8 @@ class CollectionTest < ActiveSupport::TestCase
   end
 
   test "uuid updates on current version make older versions update their pointers" do
-    Rails.configuration.Collections["CollectionVersioning"] = true
-    Rails.configuration.Collections["PreserveVersionIfIdle"] = 0
+    Rails.configuration.Collections.CollectionVersioning = true
+    Rails.configuration.Collections.PreserveVersionIfIdle = 0
     act_as_system_user do
       # Set up initial collection
       c = create_collection 'foo', Encoding::US_ASCII
@@ -267,8 +267,8 @@ class CollectionTest < ActiveSupport::TestCase
   end
 
   test "older versions' modified_at indicate when they're created" do
-    Rails.configuration.Collections["CollectionVersioning"] = true
-    Rails.configuration.Collections["PreserveVersionIfIdle"] = 0
+    Rails.configuration.Collections.CollectionVersioning = true
+    Rails.configuration.Collections.PreserveVersionIfIdle = 0
     act_as_user users(:active) do
       # Set up initial collection
       c = create_collection 'foo', Encoding::US_ASCII
@@ -301,8 +301,8 @@ class CollectionTest < ActiveSupport::TestCase
   end
 
   test "past versions should not be directly updatable" do
-    Rails.configuration.Collections["CollectionVersioning"] = true
-    Rails.configuration.Collections["PreserveVersionIfIdle"] = 0
+    Rails.configuration.Collections.CollectionVersioning = true
+    Rails.configuration.Collections.PreserveVersionIfIdle = 0
     act_as_system_user do
       # Set up initial collection
       c = create_collection 'foo', Encoding::US_ASCII
@@ -324,7 +324,7 @@ class CollectionTest < ActiveSupport::TestCase
       assert c_old.invalid?
       c_old.reload
       # Now disable collection versioning, it should behave the same way
-      Rails.configuration.Collections["CollectionVersioning"] = false
+      Rails.configuration.Collections.CollectionVersioning = false
       c_old.name = 'this was foo'
       assert c_old.invalid?
     end
@@ -337,8 +337,8 @@ class CollectionTest < ActiveSupport::TestCase
     ['is_trashed', true, false],
   ].each do |attr, first_val, second_val|
     test "sync #{attr} with older versions" do
-      Rails.configuration.Collections["CollectionVersioning"] = true
-      Rails.configuration.Collections["PreserveVersionIfIdle"] = 0
+      Rails.configuration.Collections.CollectionVersioning = true
+      Rails.configuration.Collections.PreserveVersionIfIdle = 0
       act_as_system_user do
         # Set up initial collection
         c = create_collection 'foo', Encoding::US_ASCII
@@ -379,8 +379,8 @@ class CollectionTest < ActiveSupport::TestCase
     [false, 'replication_desired', 5, false],
   ].each do |versioning, attr, val, new_version_expected|
     test "update #{attr} with versioning #{versioning ? '' : 'not '}enabled should #{new_version_expected ? '' : 'not '}create a new version" do
-      Rails.configuration.Collections["CollectionVersioning"] = versioning
-      Rails.configuration.Collections["PreserveVersionIfIdle"] = 0
+      Rails.configuration.Collections.CollectionVersioning = versioning
+      Rails.configuration.Collections.PreserveVersionIfIdle = 0
       act_as_user users(:active) do
         # Create initial collection
         c = create_collection 'foo', Encoding::US_ASCII
@@ -414,8 +414,8 @@ class CollectionTest < ActiveSupport::TestCase
   end
 
   test 'current_version_uuid is ignored during update' do
-    Rails.configuration.Collections["CollectionVersioning"] = true
-    Rails.configuration.Collections["PreserveVersionIfIdle"] = 0
+    Rails.configuration.Collections.CollectionVersioning = true
+    Rails.configuration.Collections.PreserveVersionIfIdle = 0
     act_as_user users(:active) do
       # Create 1st collection
       col1 = create_collection 'foo', Encoding::US_ASCII
@@ -439,8 +439,8 @@ class CollectionTest < ActiveSupport::TestCase
   end
 
   test 'with versioning enabled, simultaneous updates increment version correctly' do
-    Rails.configuration.Collections["CollectionVersioning"] = true
-    Rails.configuration.Collections["PreserveVersionIfIdle"] = 0
+    Rails.configuration.Collections.CollectionVersioning = true
+    Rails.configuration.Collections.PreserveVersionIfIdle = 0
     act_as_user users(:active) do
       # Create initial collection
       col = create_collection 'foo', Encoding::US_ASCII
@@ -654,7 +654,7 @@ class CollectionTest < ActiveSupport::TestCase
 
   [0, 2, 4, nil].each do |ask|
     test "set replication_desired to #{ask.inspect}" do
-      Rails.configuration.Collections["DefaultReplication"] = 2
+      Rails.configuration.Collections.DefaultReplication = 2
       act_as_user users(:active) do
         c = collections(:replication_undesired_unconfirmed)
         c.update_attributes replication_desired: ask
@@ -760,7 +760,7 @@ class CollectionTest < ActiveSupport::TestCase
                              name: 'foo',
                              trash_at: db_current_time + 1.years)
       sig_exp = /\+A[0-9a-f]{40}\@([0-9]+)/.match(c.signed_manifest_text)[1].to_i
-      expect_max_sig_exp = db_current_time.to_i + Rails.configuration.Collections["BlobSigningTTL"]
+      expect_max_sig_exp = db_current_time.to_i + Rails.configuration.Collections.BlobSigningTTL
       assert_operator c.trash_at.to_i, :>, expect_max_sig_exp
       assert_operator sig_exp.to_i, :<=, expect_max_sig_exp
     end
@@ -849,7 +849,7 @@ class CollectionTest < ActiveSupport::TestCase
     test test_name do
       act_as_user users(:active) do
         min_exp = (db_current_time +
-                   Rails.configuration.Collections["BlobSigningTTL"].seconds)
+                   Rails.configuration.Collections.BlobSigningTTL.seconds)
         if fixture_name == :expired_collection
           # Fixture-finder shorthand doesn't find trashed collections
           # because they're not in the default scope.
@@ -890,7 +890,7 @@ class CollectionTest < ActiveSupport::TestCase
   end
 
   test 'default trash interval > blob signature ttl' do
-    Rails.configuration.Collections["DefaultTrashLifetime"] = 86400 * 21 # 3 weeks
+    Rails.configuration.Collections.DefaultTrashLifetime = 86400 * 21 # 3 weeks
     start = db_current_time
     act_as_user users(:active) do
       c = Collection.create!(manifest_text: '', name: 'foo')
diff --git a/services/api/test/unit/commit_test.rb b/services/api/test/unit/commit_test.rb
index 5ae8080e9..c5d72c3bf 100644
--- a/services/api/test/unit/commit_test.rb
+++ b/services/api/test/unit/commit_test.rb
@@ -78,7 +78,7 @@ class CommitTest < ActiveSupport::TestCase
 
   test 'tag_in_internal_repository creates and updates tags in internal.git' do
     authorize_with :active
-    gitint = "git --git-dir #{Rails.configuration.Containers["JobsAPI"]["GitInternalDir"]}"
+    gitint = "git --git-dir #{Rails.configuration.Containers.JobsAPI.GitInternalDir}"
     IO.read("|#{gitint} tag -d testtag 2>/dev/null") # "no such tag", fine
     assert_match(/^fatal: /, IO.read("|#{gitint} show testtag 2>&1"))
     refute $?.success?
@@ -88,7 +88,7 @@ class CommitTest < ActiveSupport::TestCase
   end
 
   def with_foo_repository
-    Dir.chdir("#{Rails.configuration.Git["Repositories"]}/#{repositories(:foo).uuid}") do
+    Dir.chdir("#{Rails.configuration.Git.Repositories}/#{repositories(:foo).uuid}") do
       must_pipe("git checkout master 2>&1")
       yield
     end
@@ -107,7 +107,7 @@ class CommitTest < ActiveSupport::TestCase
       must_pipe("git -c user.email=x at x -c user.name=X commit -m -")
     end
     Commit.tag_in_internal_repository 'active/foo', sha1, tag
-    gitint = "git --git-dir #{Rails.configuration.Containers["JobsAPI"]["GitInternalDir"].shellescape}"
+    gitint = "git --git-dir #{Rails.configuration.Containers.JobsAPI.GitInternalDir.shellescape}"
     assert_match(/^commit /, IO.read("|#{gitint} show #{tag.shellescape}"))
     assert $?.success?
   end
@@ -123,7 +123,7 @@ class CommitTest < ActiveSupport::TestCase
       must_pipe("git reset --hard HEAD^")
     end
     Commit.tag_in_internal_repository 'active/foo', sha1, tag
-    gitint = "git --git-dir #{Rails.configuration.Containers["JobsAPI"]["GitInternalDir"].shellescape}"
+    gitint = "git --git-dir #{Rails.configuration.Containers.JobsAPI.GitInternalDir.shellescape}"
     assert_match(/^commit /, IO.read("|#{gitint} show #{tag.shellescape}"))
     assert $?.success?
   end
diff --git a/services/api/test/unit/container_request_test.rb b/services/api/test/unit/container_request_test.rb
index 732b53dbf..5174e6cf4 100644
--- a/services/api/test/unit/container_request_test.rb
+++ b/services/api/test/unit/container_request_test.rb
@@ -514,7 +514,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
   test "Container.resolve_container_image(pdh)" do
     set_user_from_auth :active
     [[:docker_image, 'v1'], [:docker_image_1_12, 'v2']].each do |coll, ver|
-      Rails.configuration.Containers["SupportedDockerImageFormats"] = [ver]
+      Rails.configuration.Containers.SupportedDockerImageFormats = [ver]
       pdh = collections(coll).portable_data_hash
       resolved = Container.resolve_container_image(pdh)
       assert_equal resolved, pdh
@@ -540,7 +540,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
   end
 
   test "migrated docker image" do
-    Rails.configuration.Containers["SupportedDockerImageFormats"] = ['v2']
+    Rails.configuration.Containers.SupportedDockerImageFormats = ['v2']
     add_docker19_migration_link
 
     # Test that it returns only v2 images even though request is for v1 image.
@@ -558,7 +558,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
   end
 
   test "use unmigrated docker image" do
-    Rails.configuration.Containers["SupportedDockerImageFormats"] = ['v1']
+    Rails.configuration.Containers.SupportedDockerImageFormats = ['v1']
     add_docker19_migration_link
 
     # Test that it returns only supported v1 images even though there is a
@@ -577,7 +577,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
   end
 
   test "incompatible docker image v1" do
-    Rails.configuration.Containers["SupportedDockerImageFormats"] = ['v1']
+    Rails.configuration.Containers.SupportedDockerImageFormats = ['v1']
     add_docker19_migration_link
 
     # Don't return unsupported v2 image even if we ask for it directly.
@@ -590,7 +590,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
   end
 
   test "incompatible docker image v2" do
-    Rails.configuration.Containers["SupportedDockerImageFormats"] = ['v2']
+    Rails.configuration.Containers.SupportedDockerImageFormats = ['v2']
     # No migration link, don't return unsupported v1 image,
 
     set_user_from_auth :active
@@ -836,7 +836,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
     assert_not_nil(trash)
     assert_not_nil(delete)
     assert_in_delta(trash, now + 1.second, 10)
-    assert_in_delta(delete, now + Rails.configuration.Collections["BlobSigningTTL"].second, 10)
+    assert_in_delta(delete, now + Rails.configuration.Collections.BlobSigningTTL.second, 10)
   end
 
   def check_output_ttl_1y(now, trash, delete)
@@ -884,7 +884,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
     [false, ActiveRecord::RecordInvalid],
     [true, nil],
   ].each do |preemptible_conf, expected|
-    test "having Rails.configuration.Containers['UsePreemptibleInstances']=#{preemptible_conf}, create preemptible container request and verify #{expected}" do
+    test "having Rails.configuration.Containers.UsePreemptibleInstances=#{preemptible_conf}, create preemptible container request and verify #{expected}" do
       sp = {"preemptible" => true}
       common_attrs = {cwd: "test",
                       priority: 1,
@@ -892,7 +892,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
                       output_path: "test",
                       scheduling_parameters: sp,
                       mounts: {"test" => {"kind" => "json"}}}
-      Rails.configuration.Containers["UsePreemptibleInstances"] = preemptible_conf
+      Rails.configuration.Containers.UsePreemptibleInstances = preemptible_conf
       set_user_from_auth :active
 
       cr = create_minimal_req!(common_attrs)
@@ -921,7 +921,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
                       scheduling_parameters: {"preemptible" => false},
                       mounts: {"test" => {"kind" => "json"}}}
 
-      Rails.configuration.Containers["UsePreemptibleInstances"] = true
+      Rails.configuration.Containers.UsePreemptibleInstances = true
       set_user_from_auth :active
 
       if requesting_c
@@ -946,14 +946,14 @@ class ContainerRequestTest < ActiveSupport::TestCase
     [false, 'zzzzz-dz642-runningcontainr', nil],
     [false, nil, nil],
   ].each do |preemptible_conf, requesting_c, schedule_preemptible|
-    test "having Rails.configuration.Containers['UsePreemptibleInstances']=#{preemptible_conf}, #{requesting_c.nil? ? 'non-':''}child CR should #{schedule_preemptible ? '':'not'} ask for preemptible instance by default" do
+    test "having Rails.configuration.Containers.UsePreemptibleInstances=#{preemptible_conf}, #{requesting_c.nil? ? 'non-':''}child CR should #{schedule_preemptible ? '':'not'} ask for preemptible instance by default" do
       common_attrs = {cwd: "test",
                       priority: 1,
                       command: ["echo", "hello"],
                       output_path: "test",
                       mounts: {"test" => {"kind" => "json"}}}
 
-      Rails.configuration.Containers["UsePreemptibleInstances"] = preemptible_conf
+      Rails.configuration.Containers.UsePreemptibleInstances = preemptible_conf
       set_user_from_auth :active
 
       if requesting_c
@@ -1017,7 +1017,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
                     state: ContainerRequest::Committed,
                     mounts: {"test" => {"kind" => "json"}}}
     set_user_from_auth :active
-    Rails.configuration.Containers["UsePreemptibleInstances"] = true
+    Rails.configuration.Containers.UsePreemptibleInstances = true
 
     cr = with_container_auth(Container.find_by_uuid 'zzzzz-dz642-runningcontainr') do
       create_minimal_req!(common_attrs)
diff --git a/services/api/test/unit/container_test.rb b/services/api/test/unit/container_test.rb
index 1711841b4..11429affa 100644
--- a/services/api/test/unit/container_test.rb
+++ b/services/api/test/unit/container_test.rb
@@ -241,7 +241,7 @@ class ContainerTest < ActiveSupport::TestCase
   end
 
   test "find_reusable method should select higher priority queued container" do
-        Rails.configuration.Containers["LogReuseDecisions"] = true
+        Rails.configuration.Containers.LogReuseDecisions = true
     set_user_from_auth :active
     common_attrs = REUSABLE_COMMON_ATTRS.merge({environment:{"var" => "queued"}})
     c_low_priority, _ = minimal_new(common_attrs.merge({use_existing:false, priority:1}))
@@ -511,7 +511,7 @@ class ContainerTest < ActiveSupport::TestCase
 
   test "find_reusable with logging enabled" do
     set_user_from_auth :active
-    Rails.configuration.Containers["LogReuseDecisions"] = true
+    Rails.configuration.Containers.LogReuseDecisions = true
     Rails.logger.expects(:info).at_least(3)
     Container.find_reusable(REUSABLE_COMMON_ATTRS)
   end
@@ -666,7 +666,7 @@ class ContainerTest < ActiveSupport::TestCase
   end
 
   test "Exceed maximum lock-unlock cycles" do
-    Rails.configuration.Containers["MaxDispatchAttempts"] = 3
+    Rails.configuration.Containers.MaxDispatchAttempts = 3
 
     set_user_from_auth :active
     c, cr = minimal_new
diff --git a/services/api/test/unit/crunch_dispatch_test.rb b/services/api/test/unit/crunch_dispatch_test.rb
index d2c0b124e..3a8f90a66 100644
--- a/services/api/test/unit/crunch_dispatch_test.rb
+++ b/services/api/test/unit/crunch_dispatch_test.rb
@@ -99,7 +99,7 @@ class CrunchDispatchTest < ActiveSupport::TestCase
 
   test 'override --cgroup-root with CRUNCH_CGROUP_ROOT' do
     ENV['CRUNCH_CGROUP_ROOT'] = '/path/to/cgroup'
-    Rails.configuration.Containers["JobsAPI"]["CrunchJobWrapper"] = "none"
+    Rails.configuration.Containers.JobsAPI.CrunchJobWrapper = "none"
     act_as_system_user do
       j = Job.create(repository: 'active/foo',
                      script: 'hash',
@@ -140,7 +140,7 @@ class CrunchDispatchTest < ActiveSupport::TestCase
 
   test 'rate limit of partial line segments' do
     act_as_system_user do
-      Rails.configuration.Containers["Logging"]["LogPartialLineThrottlePeriod"] = 1
+      Rails.configuration.Containers.Logging.LogPartialLineThrottlePeriod = 1
 
       job = {}
       job[:bytes_logged] = 0
@@ -197,7 +197,7 @@ class CrunchDispatchTest < ActiveSupport::TestCase
   end
 
   test 'scancel orphaned job nodes' do
-    Rails.configuration.Containers["JobsAPI"]["CrunchJobWrapper"] = "slurm_immediate"
+    Rails.configuration.Containers.JobsAPI.CrunchJobWrapper = "slurm_immediate"
     act_as_system_user do
       dispatch = CrunchDispatch.new
 
diff --git a/services/api/test/unit/fail_jobs_test.rb b/services/api/test/unit/fail_jobs_test.rb
index 01ed22060..304335c6f 100644
--- a/services/api/test/unit/fail_jobs_test.rb
+++ b/services/api/test/unit/fail_jobs_test.rb
@@ -40,8 +40,8 @@ class FailJobsTest < ActiveSupport::TestCase
   end
 
   test 'cancel slurm jobs' do
-    Rails.configuration.Containers["JobsAPI"]["CrunchJobWrapper"] = "slurm_immediate"
-    Rails.configuration.Containers["JobsAPI"]["CrunchJobUser"] = 'foobar'
+    Rails.configuration.Containers.JobsAPI.CrunchJobWrapper = "slurm_immediate"
+    Rails.configuration.Containers.JobsAPI.CrunchJobUser = 'foobar'
     fake_squeue = IO.popen("echo #{@job[:before_reboot].uuid}")
     fake_scancel = IO.popen("true")
     IO.expects(:popen).
@@ -55,7 +55,7 @@ class FailJobsTest < ActiveSupport::TestCase
   end
 
   test 'use reboot time' do
-    Rails.configuration.Containers["JobsAPI"]["CrunchJobWrapper"] = nil
+    Rails.configuration.Containers.JobsAPI.CrunchJobWrapper = nil
     @dispatch.expects(:open).once.with('/proc/stat').
       returns open(Rails.root.join('test/fixtures/files/proc_stat'))
     @dispatch.fail_jobs(before: 'reboot')
diff --git a/services/api/test/unit/job_test.rb b/services/api/test/unit/job_test.rb
index 47ef027f3..f47a1c10f 100644
--- a/services/api/test/unit/job_test.rb
+++ b/services/api/test/unit/job_test.rb
@@ -90,7 +90,7 @@ class JobTest < ActiveSupport::TestCase
   ].each do |use_config|
     test "Job with no Docker image uses default docker image when configuration is set #{use_config}" do
       default_docker_image = collections(:docker_image)[:portable_data_hash]
-      Rails.configuration.Containers["JobsAPI"]["DefaultDockerImage"] = default_docker_image if use_config
+      Rails.configuration.Containers.JobsAPI.DefaultDockerImage = default_docker_image if use_config
 
       job = Job.new job_attrs
       assert job.valid?, job.errors.full_messages.to_s
@@ -426,7 +426,7 @@ class JobTest < ActiveSupport::TestCase
   end
 
   test "use migrated docker image if requesting old-format image by tag" do
-    Rails.configuration.Containers["SupportedDockerImageFormats"] = ['v2']
+    Rails.configuration.Containers.SupportedDockerImageFormats = ['v2']
     add_docker19_migration_link
     job = Job.create!(
       job_attrs(
@@ -438,7 +438,7 @@ class JobTest < ActiveSupport::TestCase
   end
 
   test "use migrated docker image if requesting old-format image by pdh" do
-    Rails.configuration.Containers["SupportedDockerImageFormats"] = ['v2']
+    Rails.configuration.Containers.SupportedDockerImageFormats = ['v2']
     add_docker19_migration_link
     job = Job.create!(
       job_attrs(
@@ -455,7 +455,7 @@ class JobTest < ActiveSupport::TestCase
    [:docker_image_1_12, :docker_image_1_12, :docker_image_1_12],
   ].each do |existing_image, request_image, expect_image|
     test "if a #{existing_image} job exists, #{request_image} yields #{expect_image} after migration" do
-      Rails.configuration.Containers["SupportedDockerImageFormats"] = ['v1']
+      Rails.configuration.Containers.SupportedDockerImageFormats = ['v1']
 
       if existing_image == :docker_image
         oldjob = Job.create!(
@@ -477,7 +477,7 @@ class JobTest < ActiveSupport::TestCase
         end
       end
 
-      Rails.configuration.Containers["SupportedDockerImageFormats"] = ['v2']
+      Rails.configuration.Containers.SupportedDockerImageFormats = ['v2']
       add_docker19_migration_link
 
       # Check that both v1 and v2 images get resolved to v2.
@@ -568,7 +568,7 @@ class JobTest < ActiveSupport::TestCase
   end
 
   test 'find_reusable with logging' do
-    Rails.configuration.Containers["LogReuseDecisions"] = true
+    Rails.configuration.Containers.LogReuseDecisions = true
     Rails.logger.expects(:info).at_least(3)
     try_find_reusable
   end
@@ -595,7 +595,7 @@ class JobTest < ActiveSupport::TestCase
     assert_nil Job.find_reusable(example_attrs, {}, [], [users(:active)])
 
     # ...unless config says to reuse the earlier job in such cases.
-    Rails.configuration.Containers["JobsAPI"]["ReuseJobIfOutputsDiffer"] = true
+    Rails.configuration.Containers.JobsAPI.ReuseJobIfOutputsDiffer = true
     j = Job.find_reusable(example_attrs, {}, [], [users(:active)])
     assert_equal foobar.uuid, j.uuid
   end
@@ -648,32 +648,32 @@ class JobTest < ActiveSupport::TestCase
   end
 
   test 'enable legacy api configuration option = true' do
-    Rails.configuration.Containers["JobsAPI"]["Enable"] = "true"
+    Rails.configuration.Containers.JobsAPI.Enable = "true"
     check_enable_legacy_jobs_api
-    assert_equal [], Rails.configuration.API["DisabledAPIs"]
+    assert_equal [], Rails.configuration.API.DisabledAPIs
   end
 
   test 'enable legacy api configuration option = false' do
-    Rails.configuration.Containers["JobsAPI"]["Enable"] = "false"
+    Rails.configuration.Containers.JobsAPI.Enable = "false"
     check_enable_legacy_jobs_api
-    assert_equal Disable_jobs_api_method_list, Rails.configuration.API["DisabledAPIs"]
+    assert_equal Disable_jobs_api_method_list, Rails.configuration.API.DisabledAPIs
   end
 
   test 'enable legacy api configuration option = auto, has jobs' do
-    Rails.configuration.Containers["JobsAPI"]["Enable"] = "auto"
+    Rails.configuration.Containers.JobsAPI.Enable = "auto"
     assert Job.count > 0
     check_enable_legacy_jobs_api
-    assert_equal [], Rails.configuration.API["DisabledAPIs"]
+    assert_equal [], Rails.configuration.API.DisabledAPIs
   end
 
   test 'enable legacy api configuration option = auto, no jobs' do
-    Rails.configuration.Containers["JobsAPI"]["Enable"] = "auto"
+    Rails.configuration.Containers.JobsAPI.Enable = "auto"
     act_as_system_user do
       Job.destroy_all
     end
     assert_equal 0, Job.count
-    assert_equal [], Rails.configuration.API["DisabledAPIs"]
+    assert_equal [], Rails.configuration.API.DisabledAPIs
     check_enable_legacy_jobs_api
-    assert_equal Disable_jobs_api_method_list, Rails.configuration.API["DisabledAPIs"]
+    assert_equal Disable_jobs_api_method_list, Rails.configuration.API.DisabledAPIs
   end
 end
diff --git a/services/api/test/unit/log_test.rb b/services/api/test/unit/log_test.rb
index 3f6e278cf..8a878ada9 100644
--- a/services/api/test/unit/log_test.rb
+++ b/services/api/test/unit/log_test.rb
@@ -282,7 +282,7 @@ class LogTest < ActiveSupport::TestCase
   end
 
   test "non-empty configuration.unlogged_attributes" do
-    Rails.configuration.AuditLogs["UnloggedAttributes"] = ["manifest_text"]
+    Rails.configuration.AuditLogs.UnloggedAttributes = ["manifest_text"]
     txt = ". acbd18db4cc2f85cedef654fccc4a4d8+3 0:3:foo\n"
 
     act_as_system_user do
@@ -297,7 +297,7 @@ class LogTest < ActiveSupport::TestCase
   end
 
   test "empty configuration.unlogged_attributes" do
-    Rails.configuration.AuditLogs["UnloggedAttributes"] = []
+    Rails.configuration.AuditLogs.UnloggedAttributes = []
     txt = ". acbd18db4cc2f85cedef654fccc4a4d8+3 0:3:foo\n"
 
     act_as_system_user do
@@ -332,8 +332,8 @@ class LogTest < ActiveSupport::TestCase
   test 'retain old audit logs with default settings' do
     assert_no_logs_deleted do
       AuditLogs.delete_old(
-        max_age: Rails.configuration.AuditLogs["MaxAge"],
-        max_batch: Rails.configuration.AuditLogs["MaxDeleteBatch"])
+        max_age: Rails.configuration.AuditLogs.MaxAge,
+        max_batch: Rails.configuration.AuditLogs.MaxDeleteBatch)
     end
   end
 
@@ -362,8 +362,8 @@ class LogTest < ActiveSupport::TestCase
 
   test 'delete old audit logs in thread' do
     begin
-      Rails.configuration.AuditLogs["MaxAge"] = 20
-      Rails.configuration.AuditLogs["MaxDeleteBatch"] = 100000
+      Rails.configuration.AuditLogs.MaxAge = 20
+      Rails.configuration.AuditLogs.MaxDeleteBatch = 100000
       Rails.cache.delete 'AuditLogs'
       initial_log_count = Log.unscoped.all.count + 1
       act_as_system_user do
diff --git a/services/api/test/unit/node_test.rb b/services/api/test/unit/node_test.rb
index 97eddc215..b54e8d9de 100644
--- a/services/api/test/unit/node_test.rb
+++ b/services/api/test/unit/node_test.rb
@@ -34,8 +34,8 @@ class NodeTest < ActiveSupport::TestCase
   end
 
   test "dns_server_conf_template" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerConfDir"] = Rails.root.join 'tmp'
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerConfTemplate"] = Rails.root.join 'config', 'unbound.template'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerConfDir = Rails.root.join 'tmp'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerConfTemplate = Rails.root.join 'config', 'unbound.template'
     conffile = Rails.root.join 'tmp', 'compute65535.conf'
     File.unlink conffile rescue nil
     assert Node.dns_server_update 'compute65535', '127.0.0.1'
@@ -44,8 +44,8 @@ class NodeTest < ActiveSupport::TestCase
   end
 
   test "dns_server_restart_command" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerConfDir"] = Rails.root.join 'tmp'
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerReloadCommand"] = 'foobar'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerConfDir = Rails.root.join 'tmp'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerReloadCommand = 'foobar'
     restartfile = Rails.root.join 'tmp', 'restart.txt'
     File.unlink restartfile rescue nil
     assert Node.dns_server_update 'compute65535', '127.0.0.127'
@@ -54,14 +54,14 @@ class NodeTest < ActiveSupport::TestCase
   end
 
   test "dns_server_restart_command fail" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerConfDir"] = Rails.root.join 'tmp', 'bogusdir'
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerReloadCommand"] = 'foobar'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerConfDir = Rails.root.join 'tmp', 'bogusdir'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerReloadCommand = 'foobar'
     refute Node.dns_server_update 'compute65535', '127.0.0.127'
   end
 
   test "dns_server_update_command with valid command" do
     testfile = Rails.root.join('tmp', 'node_test_dns_server_update_command.txt')
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerUpdateCommand"] =
+    Rails.configuration.Containers.SLURM.Managed.DNSServerUpdateCommand =
       ('echo -n "%{hostname} == %{ip_address}" >' +
        testfile.to_s.shellescape)
     assert Node.dns_server_update 'compute65535', '127.0.0.1'
@@ -70,23 +70,23 @@ class NodeTest < ActiveSupport::TestCase
   end
 
   test "dns_server_update_command with failing command" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerUpdateCommand"] = 'false %{hostname}'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerUpdateCommand = 'false %{hostname}'
     refute Node.dns_server_update 'compute65535', '127.0.0.1'
   end
 
   test "dns update with no commands/dirs configured" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerUpdateCommand"] = ""
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerConfDir"] = ""
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerConfTemplate"] = 'ignored!'
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerReloadCommand"] = 'ignored!'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerUpdateCommand = ""
+    Rails.configuration.Containers.SLURM.Managed.DNSServerConfDir = ""
+    Rails.configuration.Containers.SLURM.Managed.DNSServerConfTemplate = 'ignored!'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerReloadCommand = 'ignored!'
     assert Node.dns_server_update 'compute65535', '127.0.0.127'
   end
 
   test "don't leave temp files behind if there's an error writing them" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerConfTemplate"] = Rails.root.join 'config', 'unbound.template'
+    Rails.configuration.Containers.SLURM.Managed.DNSServerConfTemplate = Rails.root.join 'config', 'unbound.template'
     Tempfile.any_instance.stubs(:puts).raises(IOError)
     Dir.mktmpdir do |tmpdir|
-      Rails.configuration.Containers["SLURM"]["Managed"]["DNSServerConfDir"] = tmpdir
+      Rails.configuration.Containers.SLURM.Managed.DNSServerConfDir = tmpdir
       refute Node.dns_server_update 'compute65535', '127.0.0.127'
       assert_empty Dir.entries(tmpdir).select{|f| File.file? f}
     end
@@ -100,14 +100,14 @@ class NodeTest < ActiveSupport::TestCase
   end
 
   test "ping new node with no hostname and no config" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["AssignNodeHostname"] = false
+    Rails.configuration.Containers.SLURM.Managed.AssignNodeHostname = false
     node = ping_node(:new_with_no_hostname, {})
     refute_nil node.slot_number
     assert_nil node.hostname
   end
 
   test "ping new node with zero padding config" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["AssignNodeHostname"] = 'compute%<slot_number>04d'
+    Rails.configuration.Containers.SLURM.Managed.AssignNodeHostname = 'compute%<slot_number>04d'
     node = ping_node(:new_with_no_hostname, {})
     slot_number = node.slot_number
     refute_nil slot_number
@@ -121,7 +121,7 @@ class NodeTest < ActiveSupport::TestCase
   end
 
   test "ping node with hostname and no config and expect hostname unchanged" do
-    Rails.configuration.Containers["SLURM"]["Managed"]["AssignNodeHostname"] = false
+    Rails.configuration.Containers.SLURM.Managed.AssignNodeHostname = false
     node = ping_node(:new_with_custom_hostname, {})
     assert_equal(23, node.slot_number)
     assert_equal("custom1", node.hostname)
@@ -196,13 +196,13 @@ class NodeTest < ActiveSupport::TestCase
   end
 
   test 'run out of slots' do
-    Rails.configuration.Containers["MaxComputeVMs"] = 3
+    Rails.configuration.Containers.MaxComputeVMs = 3
     act_as_system_user do
       Node.destroy_all
       (1..4).each do |i|
         n = Node.create!
         args = { ip: "10.0.0.#{i}", ping_secret: n.info['ping_secret'] }
-        if i <= Rails.configuration.Containers["MaxComputeVMs"]
+        if i <= Rails.configuration.Containers.MaxComputeVMs
           n.ping(args)
         else
           assert_raises do
diff --git a/services/api/test/unit/repository_test.rb b/services/api/test/unit/repository_test.rb
index 2f6235029..cb562ef97 100644
--- a/services/api/test/unit/repository_test.rb
+++ b/services/api/test/unit/repository_test.rb
@@ -31,7 +31,7 @@ class RepositoryTest < ActiveSupport::TestCase
   end
 
   def assert_server_path(path_tail, repo_sym)
-    assert_equal(File.join(Rails.configuration.Git["Repositories"], path_tail),
+    assert_equal(File.join(Rails.configuration.Git.Repositories, path_tail),
                  repositories(repo_sym).server_path)
   end
 
diff --git a/services/api/test/unit/user_notifier_test.rb b/services/api/test/unit/user_notifier_test.rb
index 79d3e15ef..f409d231f 100644
--- a/services/api/test/unit/user_notifier_test.rb
+++ b/services/api/test/unit/user_notifier_test.rb
@@ -14,12 +14,12 @@ class UserNotifierTest < ActionMailer::TestCase
     assert_not_nil email
 
     # Test the body of the sent email contains what we expect it to
-    assert_equal Rails.configuration.Users["UserNotifierEmailFrom"], email.from.first
+    assert_equal Rails.configuration.Users.UserNotifierEmailFrom, email.from.first
     assert_equal user.email, email.to.first
     assert_equal 'Welcome to Arvados - shell account enabled', email.subject
     assert (email.body.to_s.include? 'Your Arvados shell account has been set up'),
         'Expected Your Arvados shell account has been set up in email body'
-    assert (email.body.to_s.include? Rails.configuration.Services["Workbench1"]["ExternalURL"].to_s),
+    assert (email.body.to_s.include? Rails.configuration.Services.Workbench1.ExternalURL.to_s),
         'Expected workbench url in email body'
   end
 
diff --git a/services/api/test/unit/user_test.rb b/services/api/test/unit/user_test.rb
index 5ee9bb039..185653e87 100644
--- a/services/api/test/unit/user_test.rb
+++ b/services/api/test/unit/user_test.rb
@@ -110,7 +110,7 @@ class UserTest < ActiveSupport::TestCase
   end
 
   test "new username set avoiding blacklist" do
-    Rails.configuration.Users["AutoSetupUsernameBlacklist"] = ["root"]
+    Rails.configuration.Users.AutoSetupUsernameBlacklist = ["root"]
     check_new_username_setting("root", "root2")
   end
 
@@ -170,8 +170,8 @@ class UserTest < ActiveSupport::TestCase
         assert_equal 0, @all_users.count, "No admin users should exist (except for the system user)"
       end
 
-      Rails.configuration.Users["AutoAdminFirstUser"] = auto_admin_first_user_config
-      Rails.configuration.Users["AutoAdminUserWithEmail"] = auto_admin_user_config
+      Rails.configuration.Users.AutoAdminFirstUser = auto_admin_first_user_config
+      Rails.configuration.Users.AutoAdminUserWithEmail = auto_admin_user_config
 
       # See if the foo user has is_admin
       foo = User.new
@@ -384,15 +384,15 @@ class UserTest < ActiveSupport::TestCase
     test "create new user with auto setup #{active} #{email} #{auto_setup_vm} #{auto_setup_repo}" do
       set_user_from_auth :admin
 
-      Rails.configuration.Users["AutoSetupNewUsers"] = true
+      Rails.configuration.Users.AutoSetupNewUsers = true
 
       if auto_setup_vm
-        Rails.configuration.Users["AutoSetupNewUsersWithVmUUID"] = virtual_machines(:testvm)['uuid']
+        Rails.configuration.Users.AutoSetupNewUsersWithVmUUID = virtual_machines(:testvm)['uuid']
       else
-        Rails.configuration.Users["AutoSetupNewUsersWithVmUUID"] = ""
+        Rails.configuration.Users.AutoSetupNewUsersWithVmUUID = ""
       end
 
-      Rails.configuration.Users["AutoSetupNewUsersWithRepository"] = auto_setup_repo
+      Rails.configuration.Users.AutoSetupNewUsersWithRepository = auto_setup_repo
 
       create_user_and_verify_setup_and_notifications active, new_user_recipients, inactive_recipients, email, expect_username
     end
@@ -625,12 +625,12 @@ class UserTest < ActiveSupport::TestCase
   end
 
   def create_user_and_verify_setup_and_notifications (active, new_user_recipients, inactive_recipients, email, expect_username)
-    Rails.configuration.Users["NewUserNotificationRecipients"] = new_user_recipients
-    Rails.configuration.Users["NewInactiveUserNotificationRecipients"] = inactive_recipients
+    Rails.configuration.Users.NewUserNotificationRecipients = new_user_recipients
+    Rails.configuration.Users.NewInactiveUserNotificationRecipients = inactive_recipients
 
     ActionMailer::Base.deliveries = []
 
-    can_setup = (Rails.configuration.Users["AutoSetupNewUsers"] and
+    can_setup = (Rails.configuration.Users.AutoSetupNewUsers and
                  (not expect_username.nil?))
     expect_repo_name = "#{expect_username}/#{expect_username}"
     prior_repo = Repository.where(name: expect_repo_name).first
@@ -643,21 +643,21 @@ class UserTest < ActiveSupport::TestCase
     assert_equal(expect_username, user.username)
 
     # check user setup
-    verify_link_exists(Rails.configuration.Users["AutoSetupNewUsers"] || active,
+    verify_link_exists(Rails.configuration.Users.AutoSetupNewUsers || active,
                        groups(:all_users).uuid, user.uuid,
                        "permission", "can_read")
     # Check for OID login link.
-    verify_link_exists(Rails.configuration.Users["AutoSetupNewUsers"] || active,
+    verify_link_exists(Rails.configuration.Users.AutoSetupNewUsers || active,
                        user.uuid, user.email, "permission", "can_login")
     # Check for repository.
     if named_repo = (prior_repo or
                      Repository.where(name: expect_repo_name).first)
       verify_link_exists((can_setup and prior_repo.nil? and
-                          Rails.configuration.Users["AutoSetupNewUsersWithRepository"]),
+                          Rails.configuration.Users.AutoSetupNewUsersWithRepository),
                          named_repo.uuid, user.uuid, "permission", "can_manage")
     end
     # Check for VM login.
-    if (auto_vm_uuid = Rails.configuration.Users["AutoSetupNewUsersWithVmUUID"]) != ""
+    if (auto_vm_uuid = Rails.configuration.Users.AutoSetupNewUsersWithVmUUID) != ""
       verify_link_exists(can_setup, auto_vm_uuid, user.uuid,
                          "permission", "can_login", "username", expect_username)
     end
@@ -666,17 +666,17 @@ class UserTest < ActiveSupport::TestCase
     new_user_email = nil
     new_inactive_user_email = nil
 
-    new_user_email_subject = "#{Rails.configuration.Users["EmailSubjectPrefix"]}New user created notification"
-    if Rails.configuration.Users["AutoSetupNewUsers"]
+    new_user_email_subject = "#{Rails.configuration.Users.EmailSubjectPrefix}New user created notification"
+    if Rails.configuration.Users.AutoSetupNewUsers
       new_user_email_subject = (expect_username or active) ?
-                                 "#{Rails.configuration.Users["EmailSubjectPrefix"]}New user created and setup notification" :
-                                 "#{Rails.configuration.Users["EmailSubjectPrefix"]}New user created, but not setup notification"
+                                 "#{Rails.configuration.Users.EmailSubjectPrefix}New user created and setup notification" :
+                                 "#{Rails.configuration.Users.EmailSubjectPrefix}New user created, but not setup notification"
     end
 
     ActionMailer::Base.deliveries.each do |d|
       if d.subject == new_user_email_subject then
         new_user_email = d
-      elsif d.subject == "#{Rails.configuration.Users["EmailSubjectPrefix"]}New inactive user notification" then
+      elsif d.subject == "#{Rails.configuration.Users.EmailSubjectPrefix}New inactive user notification" then
         new_inactive_user_email = d
       end
     end
@@ -685,7 +685,7 @@ class UserTest < ActiveSupport::TestCase
     # if the new user email recipients config parameter is set
     if not new_user_recipients.empty? then
       assert_not_nil new_user_email, 'Expected new user email after setup'
-      assert_equal Rails.configuration.Users["UserNotifierEmailFrom"], new_user_email.from[0]
+      assert_equal Rails.configuration.Users.UserNotifierEmailFrom, new_user_email.from[0]
       assert_equal new_user_recipients, new_user_email.to[0]
       assert_equal new_user_email_subject, new_user_email.subject
     else
@@ -695,9 +695,9 @@ class UserTest < ActiveSupport::TestCase
     if not active
       if not inactive_recipients.empty? then
         assert_not_nil new_inactive_user_email, 'Expected new inactive user email after setup'
-        assert_equal Rails.configuration.Users["UserNotifierEmailFrom"], new_inactive_user_email.from[0]
+        assert_equal Rails.configuration.Users.UserNotifierEmailFrom, new_inactive_user_email.from[0]
         assert_equal inactive_recipients, new_inactive_user_email.to[0]
-        assert_equal "#{Rails.configuration.Users["EmailSubjectPrefix"]}New inactive user notification", new_inactive_user_email.subject
+        assert_equal "#{Rails.configuration.Users.EmailSubjectPrefix}New inactive user notification", new_inactive_user_email.subject
       else
         assert_nil new_inactive_user_email, 'Did not expect new inactive user email after setup'
       end

commit 648a56262d7b5b1c550077341f81cc98e1850305
Author: Peter Amstutz <pamstutz at veritasgenetics.com>
Date:   Wed Apr 10 17:07:08 2019 -0400

    13996: Copy config into OrderedOptions for nicer access
    
    Arvados-DCO-1.1-Signed-off-by: Peter Amstutz <pamstutz at veritasgenetics.com>

diff --git a/services/api/app/models/api_client_authorization.rb b/services/api/app/models/api_client_authorization.rb
index db99c0bc1..4aaa2ef44 100644
--- a/services/api/app/models/api_client_authorization.rb
+++ b/services/api/app/models/api_client_authorization.rb
@@ -87,8 +87,8 @@ class ApiClientAuthorization < ArvadosModel
   end
 
   def self.remote_host(uuid_prefix:)
-    Rails.configuration.RemoteClusters[uuid_prefix]["Host"] ||
-      (Rails.configuration.RemoteClusters["*"]["Proxy"] &&
+    Rails.configuration.RemoteClusters[uuid_prefix].Host ||
+      (Rails.configuration.RemoteClusters["*"].Proxy &&
        uuid_prefix+".arvadosapi.com")
   end
 
diff --git a/services/api/app/models/collection.rb b/services/api/app/models/collection.rb
index 7f7a32007..a7d357ec6 100644
--- a/services/api/app/models/collection.rb
+++ b/services/api/app/models/collection.rb
@@ -519,7 +519,7 @@ class Collection < ArvadosModel
       loc.strip_hints!
       coll_match = readable_by(*readers).where(portable_data_hash: loc.to_s).limit(1)
       rc = Rails.configuration.RemoteClusters.select{ |k|
-        k != "*" && k != Rails.configuration.ClusterID}
+        k != :"*" && k != Rails.configuration.ClusterID}
       if coll_match.any? or rc.length == 0
         return get_compatible_images(readers, pattern, coll_match)
       else
diff --git a/services/api/config/arvados_config.rb b/services/api/config/arvados_config.rb
index 835666bdd..a9733bc7a 100644
--- a/services/api/config/arvados_config.rb
+++ b/services/api/config/arvados_config.rb
@@ -164,8 +164,7 @@ application_config = {}
 %w(application.default application).each do |cfgfile|
   path = "#{::Rails.root.to_s}/config/#{cfgfile}.yml"
   if File.exist? path
-    yaml = ERB.new(IO.read path).result(binding)
-    confs = YAML.load(yaml, deserialize_symbols: true)
+    confs = ConfigLoader.load(path)
     # Ignore empty YAML file:
     next if confs == false
     application_config.deep_merge!(confs['common'] || {})
@@ -176,8 +175,7 @@ end
 db_config = {}
 path = "#{::Rails.root.to_s}/config/database.yml"
 if File.exist? path
-  yaml = ERB.new(IO.read path).result(binding)
-  confs = YAML.load(yaml, deserialize_symbols: true)
+  confs = ConfigLoader.load(path)
   db_config.deep_merge!(confs[::Rails.env.to_s] || {})
 end
 
@@ -220,7 +218,12 @@ end
 # For config migration, we've previously populated the PostgreSQL
 # section of the config from database.yml
 #
-ENV["DATABASE_URL"] = "postgresql://#{$arvados_config["PostgreSQL"]["Connection"]["User"]}:#{$arvados_config["PostgreSQL"]["Connection"]["Password"]}@#{dbhost}/#{$arvados_config["PostgreSQL"]["Connection"]["DBName"]}?template=#{$arvados_config["PostgreSQL"]["Connection"]["Template"]}&encoding=#{$arvados_config["PostgreSQL"]["Connection"]["client_encoding"]}&pool=#{$arvados_config["PostgreSQL"]["ConnectionPool"]}"
+ENV["DATABASE_URL"] = "postgresql://#{$arvados_config["PostgreSQL"]["Connection"]["User"]}:"+
+                      "#{$arvados_config["PostgreSQL"]["Connection"]["Password"]}@"+
+                      "#{dbhost}/#{$arvados_config["PostgreSQL"]["Connection"]["DBName"]}?"+
+                      "template=#{$arvados_config["PostgreSQL"]["Connection"]["Template"]}&"+
+                      "encoding=#{$arvados_config["PostgreSQL"]["Connection"]["client_encoding"]}&"+
+                      "pool=#{$arvados_config["PostgreSQL"]["ConnectionPool"]}"
 
 Server::Application.configure do
   ConfigLoader.copy_into_config $arvados_config, config
diff --git a/services/api/lib/config_loader.rb b/services/api/lib/config_loader.rb
index 2d1ddd8b8..5cb6e2841 100644
--- a/services/api/lib/config_loader.rb
+++ b/services/api/lib/config_loader.rb
@@ -172,8 +172,27 @@ class ConfigLoader
 
   def self.copy_into_config src, dst
     src.each do |k, v|
-      dst.send "#{k}=", Marshal.load(Marshal.dump v)
+      dst.send "#{k}=", self.to_OrderedOptions(v)
     end
   end
 
+  def self.to_OrderedOptions confs
+    if confs.is_a? Hash
+      opts = ActiveSupport::OrderedOptions.new
+      confs.each do |k,v|
+        opts[k] = self.to_OrderedOptions(v)
+      end
+      opts
+    elsif confs.is_a? Array
+      confs.map { |v| self.to_OrderedOptions v }
+    else
+      confs
+    end
+  end
+
+  def self.load path
+    yaml = ERB.new(IO.read path).result(binding)
+    YAML.load(yaml, deserialize_symbols: false)
+  end
+
 end
diff --git a/services/api/test/integration/remote_user_test.rb b/services/api/test/integration/remote_user_test.rb
index 644c2b1be..511a02410 100644
--- a/services/api/test/integration/remote_user_test.rb
+++ b/services/api/test/integration/remote_user_test.rb
@@ -63,8 +63,8 @@ class RemoteUsersTest < ActionDispatch::IntegrationTest
     ready.pop
     @remote_server = srv
     @remote_host = "127.0.0.1:#{srv.config[:Port]}"
-    Rails.configuration.RemoteClusters = Rails.configuration.RemoteClusters.merge({'zbbbb' => {"Host" => @remote_host},
-                                                                                   'zbork' => {"Host" => @remote_host}})
+    Rails.configuration.RemoteClusters = Rails.configuration.RemoteClusters.merge({zbbbb: ActiveSupport::InheritableOptions.new({Host: @remote_host}),
+                                                                                   zbork: ActiveSupport::InheritableOptions.new({Host: @remote_host})})
     Arvados::V1::SchemaController.any_instance.stubs(:root_url).returns "https://#{@remote_host}"
     @stub_status = 200
     @stub_content = {
diff --git a/services/api/test/unit/container_request_test.rb b/services/api/test/unit/container_request_test.rb
index 6f0233306..732b53dbf 100644
--- a/services/api/test/unit/container_request_test.rb
+++ b/services/api/test/unit/container_request_test.rb
@@ -535,7 +535,7 @@ class ContainerRequestTest < ActiveSupport::TestCase
 
   test "allow unrecognized container when there are remote_hosts" do
     set_user_from_auth :active
-    Rails.configuration.RemoteClusters = {"foooo" => {"Host" => "bar.com"} }
+    Rails.configuration.RemoteClusters = Rails.configuration.RemoteClusters.merge({foooo: ActiveSupport::InheritableOptions.new({Host: "bar.com"})})
     Container.resolve_container_image('acbd18db4cc2f85cedef654fccc4a4d8+3')
   end
 

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