Encrypt CI/CD builds tokens

Brings back 1e8f1de0 reverted in !23644

Closes #52342

See merge request gitlab-org/gitlab-ce!23436

2 files changed, 28 insertions, 0 deletions

diff --git a/db/migrate/20181129104854_add_token_encrypted_to_ci_builds.rb b/db/migrate/20181129104854_add_token_encrypted_to_ci_builds.rb
new file mode 100644
index 00000000000..11b98203793
--- /dev/null
+++ b/db/migrate/20181129104854_add_token_encrypted_to_ci_builds.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class AddTokenEncryptedToCiBuilds < ActiveRecord::Migration[5.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    add_column :ci_builds, :token_encrypted, :string
+  end
+end
diff --git a/db/migrate/20181129104944_add_index_to_ci_builds_token_encrypted.rb b/db/migrate/20181129104944_add_index_to_ci_builds_token_encrypted.rb
new file mode 100644
index 00000000000..f90aca008e5
--- /dev/null
+++ b/db/migrate/20181129104944_add_index_to_ci_builds_token_encrypted.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class AddIndexToCiBuildsTokenEncrypted < ActiveRecord::Migration[5.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :ci_builds, :token_encrypted, unique: true, where: 'token_encrypted IS NOT NULL'
+  end
+
+  def down
+    remove_concurrent_index :ci_builds, :token_encrypted
+  end
+end