Reconciliation
In the context of Jikkou, reconciliation refers to the process of comparing the desired state of an object with the actual state of the system and making any necessary corrections or adjustments to align them.
Changes
A Change represents a difference, detected during reconciliation, between two objects that can reconciled or corrected by adding, updating, or deleting an object or property attached to the actual state of the system.
A Change represents a detected difference between two objects during the reconciliation process. These differences can be reconciled or corrected by adding, updating, or deleting an object or property associated with the actual state of the system
Jikkou identifies four types of changes:
ADD: Indicates the addition of a new object or property to an existing object.
UPDATE: Indicates modifications made to an existing object or property of an existing object.
DELETE: Indicates the removal of an existing object or property of an existing object.
NONE: Indicates that no changes were made to an existing object or property.
Reconciliation Modes
Depending on the chosen reconciliation mode, only specific types of changes will be applied.
Jikkou provides four distinct reconciliation modes that determine the types of changes to be applied:
CREATE: This mode only applies changes that create new resource objects in your system.DELETE: This mode only applies changes that delete existing resource objects in your system.UPDATE: This mode only applies changes that create or update existing resource objects in your system.APPLY_ALL: This mode applies all changes to ensure that the actual state of a resource in the cluster matches the desired state defined in your resource definition file, regardless of the specific type of change.
Each mode corresponds to a command offered by the Jikkou CLI (i.e., create, update, delete, and apply). Choose
the appropriate mode based on your requirements.
Using JIKKOU CLI
Some reconciliation modes might not be supported for all resources. Usejikkou extensions list --type Controller to check which actions could be perfomed for each resources.Reconciliation Options
Depending on the type of resources being reconciled, the controller that will be involved in the reconciliation
process might accept some options (i.e., using --options argument).
Mark Resource for Deletion
To delete all the states associated with resource’s entities, you must add the following annotation to the resource definition:
metadata:
annotations:
jikkou.io/delete: true