X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/0561bd0c3c07257fd58ded6c7cfa5feeae97af57..fb96637bf76fe8779e7a7e58f052b8f55ed76f4f:/services/api/app/models/keep_service.rb

diff --git a/services/api/app/models/keep_service.rb b/services/api/app/models/keep_service.rb
index bf5f3ccc01..f76f5e47a5 100644
--- a/services/api/app/models/keep_service.rb
+++ b/services/api/app/models/keep_service.rb
@@ -6,6 +6,10 @@ class KeepService < ArvadosModel
   include HasUuid
   include KindAndEtag
   include CommonApiTemplate
+  extend DbCurrentTime
+  extend CurrentApiClient
+
+  SERVER_START_TIME = db_current_time
 
   api_accessible :user, extend: :common do |t|
     t.add  :service_host
@@ -17,6 +21,21 @@ class KeepService < ArvadosModel
   api_accessible :superuser, :extend => :user do |t|
   end
 
+  # return the set of keep services from the database (if this is an
+  # older installation or test system where entries have been added
+  # manually) or, preferably, the cluster config file.
+  def self.all *args
+    if super.count == 0
+      from_config
+    else
+      super
+    end
+  end
+
+  def self.where *args
+    all.where *args
+  end
+
   protected
 
   def permission_to_create
@@ -26,4 +45,44 @@ class KeepService < ArvadosModel
   def permission_to_update
     current_user.andand.is_admin
   end
+
+  def self.from_config
+    config_time = connection.quote(SERVER_START_TIME)
+    owner = connection.quote(system_user_uuid)
+    values = []
+    id = 1
+    Rails.configuration.Services.Keepstore.InternalURLs.each do |url, info|
+      values << "(#{id}, " + quoted_column_values_from_url(url: url.to_s, rendezvous: info.Rendezvous).join(", ") + ", 'disk', 'f'::bool, #{config_time}, #{config_time}, #{owner}, #{owner}, null)"
+      id += 1
+    end
+    url = Rails.configuration.Services.Keepproxy.ExternalURL.to_s
+    if !url.blank?
+      values << "(#{id}, " + quoted_column_values_from_url(url: url, rendezvous: "").join(", ") + ", 'proxy', 'f'::bool, #{config_time}, #{config_time}, #{owner}, #{owner}, null)"
+      id += 1
+    end
+    if values.length == 0
+      # return empty set as AR relation
+      return unscoped.where('1=0')
+    else
+      sql = "(values #{values.join(", ")}) as keep_services (id, uuid, service_host, service_port, service_ssl_flag, service_type, read_only, created_at, modified_at, owner_uuid, modified_by_user_uuid, modified_by_client_uuid)"
+      return unscoped.from(sql)
+    end
+  end
+
+  private
+
+  def self.quoted_column_values_from_url(url:, rendezvous:)
+    rvz = rendezvous
+    rvz = url if rvz.blank?
+    if /^[a-zA-Z0-9]{15}$/ !~ rvz
+      # If rvz is an URL (either the real service URL, or an alternate
+      # one specified in config in order to preserve rendezvous order
+      # when changing hosts/ports), hash it to get 15 alphanums.
+      rvz = Digest::MD5.hexdigest(rvz)[0..15]
+    end
+    uuid = Rails.configuration.ClusterID + "-bi6l4-" + rvz
+    uri = URI::parse(url)
+    [uuid, uri.host, uri.port].map { |x| connection.quote(x) } + [(uri.scheme == 'https' ? "'t'::bool" : "'f'::bool")]
+  end
+
 end