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Configuring Orca to use a Relational Database Management System
By default, Orca (the task orchestration service) uses Redis as its backing store. You can configure Orca to use a relational database to store its pipeline execution. The main advantage of doing so is a gain in performance and the removal of Redis as a single point of failure.
Armory recommends MySQL 5.7. For AWS, you can use Aurora.
You can find a complete description of the options in the open source documentation.
SQL can be configured by adding the following snippet to
SpinnakerService manifest under
spec.spinnakerConfig.profiles.orca if using the Operator, or to
<HALYARD>/<DEPLOYMENT>/profiles/orca-local.yml if using Halyard:
sql: enabled: true connectionPool: jdbcUrl: jdbc:mysql://<DB CONNECTION HOSTNAME>:<DB CONNECTION PORT>/<DATABASE NAME> user: orca_service password: <orca_service password> connectionTimeout: 5000 maxLifetime: 30000 maxPoolSize: 50 migration: jdbcUrl: jdbc:mysql://<DB CONNECTION HOSTNAME>:<DB CONNECTION PORT>/<DATABASE NAME> user: orca_migrate password: <orca_migrate password> # Ensure we're only using SQL for accessing execution state executionRepository: sql: enabled: true redis: enabled: false monitor: activeExecutions: redis: false
Once you’ve provisioned your RDBMS and ensured connectivity from Spinnaker, you’ll need to create the database. You can skip this step if you create the database during provisioning - for instance with Terraform:
CREATE SCHEMA `orca` DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
Grant authorization to the
GRANT SELECT, INSERT, UPDATE, DELETE, EXECUTE, SHOW VIEW ON `orca`.* TO 'orca_service'@'%'; GRANT SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, REFERENCES, INDEX, ALTER, LOCK TABLES, EXECUTE, SHOW VIEW ON `orca`.* TO 'orca_migrate'@'%';
The above configuration grants authorization from any host. You can restrict it to the cluster in which Spinnaker runs by replacing the
% with the IP address of Orca pods from MySQL.
Keeping existing execution history
The above configuration will point Orca to your database.
You have the option to run a dual repository by adding
executionRepository: dual: enabled: true primaryClass: sqlExecutionRepository previousClass: redisExecutionRepository sql: enabled: true redis: enabled: true
Armory versions prior to v2.18:
executionRepository: dual: enabled: true primaryClass: com.netflix.spinnaker.orca.sql.pipeline.persistence.SqlExecutionRepository previousClass: com.netflix.spinnaker.orca.pipeline.persistence.jedis.RedisExecutionRepository sql: enabled: true redis: enabled: true
However it won’t migrate your existing execution history to your new database. This will make your spinnaker instance run on both the SQL and redis backend, it will only write the new execution on SQL but will continue to read the data on redis. To migrate the data from Redis to SQL, you need to add the following
pollers: orchestrationMigrator: enabled: true intervalMs: 1800000 pipelineMigrator: enabled: true intervalMs: 1800000 # After how much time the migration process is going to start
Once everything has been migrated (you will see logs in the orca pod about the migration process) you can remove these settings.
Each new version of Orca may potentially migrate the database schema. This is done with the
orca_migrate user defined above.
Pipeline executions are saved to the database. Each execution can add between a few KBs to hundreds of KBs of data depending on the size of your pipeline. It means that after a while, data will grow large and you’ll likely want to purge older executions.
Note: We recommend saving past executions to a different data store for auditing purposes. You can do it in a variety of ways:
- During the purge, by marking, exporting, then deleting older records.
- By saving execution history from Echo’s events and just delete older records from your database.
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