diff options
Diffstat (limited to 'lib/gitlab/database/reflection.rb')
| -rw-r--r-- | lib/gitlab/database/reflection.rb | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/lib/gitlab/database/reflection.rb b/lib/gitlab/database/reflection.rb index 48a4de28541..3ea7277571f 100644 --- a/lib/gitlab/database/reflection.rb +++ b/lib/gitlab/database/reflection.rb @@ -105,6 +105,35 @@ module Gitlab row['system_identifier'] end + def flavor + { + # Based on https://aws.amazon.com/premiumsupport/knowledge-center/aurora-version-number/ + 'Amazon Aurora PostgreSQL' => { statement: 'SELECT AURORA_VERSION()', error: /PG::UndefinedFunction/ }, + # Based on https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.FeatureSupport.Extensions, + # this is also available for both Aurora and RDS, so we need to check for the former first. + 'PostgreSQL on Amazon RDS' => { statement: 'SHOW rds.extensions', error: /PG::UndefinedObject/ }, + # Based on https://cloud.google.com/sql/docs/postgres/flags#postgres-c this should be specific + # to Cloud SQL for PostgreSQL + 'Cloud SQL for PostgreSQL' => { statement: 'SHOW cloudsql.iam_authentication', error: /PG::UndefinedObject/ }, + # Based on + # - https://docs.microsoft.com/en-us/azure/postgresql/flexible-server/concepts-extensions + # - https://docs.microsoft.com/en-us/azure/postgresql/concepts-extensions + # this should be available only for Azure Database for PostgreSQL - Flexible Server. + 'Azure Database for PostgreSQL - Flexible Server' => { statement: 'SHOW azure.extensions', error: /PG::UndefinedObject/ }, + # Based on + # - https://docs.microsoft.com/en-us/azure/postgresql/flexible-server/concepts-servers + # - https://docs.microsoft.com/en-us/azure/postgresql/concepts-servers#managing-your-server + # this database is present on both Flexible and Single server, so we should check the former first. + 'Azure Database for PostgreSQL - Single Server' => { statement: "SELECT datname FROM pg_database WHERE datname = 'azure_maintenance'" } + }.each do |flavor, conditions| + return flavor if connection.execute(conditions[:statement]).to_a.present? + rescue ActiveRecord::StatementInvalid => e + raise if conditions[:error] && !e.message.match?(conditions[:error]) + end + + nil + end + private def connection |