Take the following approach:
On a fresh install, all bootstrap configuration objects will
have auto update enabled via the following annotation :
`apf.kubernetes.io/autoupdate: 'true'`
The kube-apiserver periodically checks the bootstrap configuration
objects on the cluster and applies update if necessary.
We enforce an 'always auto-update' policy for the mandatory
configuration object(s).
We update the suggested configuration objects when:
- auto update is enabled (`apf.kubernetes.io/autoupdate: 'true'`) or
- auto update annotation key is missing but `generation` is `1`
If the configuration object is missing the annotation key, we add
it appropriately:
it is set to `true` if `generation` is `1`, `false` otherwise.
The above approach ensures that we don't squash changes made by an
operator. Please note, we can't protect the changes made by the
operator in the following scenario:
- the user changes the spec and then deletes and recreates
the same object. (generation resets to 1)
remove using a marker
We should not attempt creation of mandatory objects if ensuring
the suggested configuration resulted in an error.
We rely on the presence of the "exempt" priority level configuration
object in the cluster to indicate whether we should ensure
suggested configuration.
Adds and implements ResetFieldsProvder interface in order to ensure that
the fieldmanager no longer owns fields that get reset before the object
is persisted.
Co-authored-by: Kevin Wiesmueller <kwiesmul@redhat.com>
Co-authored-by: Kevin Delgado <kevindelgado@google.com>
