Architecture
Package Operator Manager
The main work of Package Operator is done by the Package Operator Manager. This
component is run as a deployment with a single replica. It contains the controllers
for (Cluster)Package, (Cluster)ObjectDeployment, and (Cluster)ObjectSet resources.
It also contains a controller for (Cluster)ObjectSetPhase objects. This controller
reconciles (Cluster)ObjectSetPhases with the .spec.class set to default.
Package Operator Manager also contains functionality to allow Package Operator to bootstrap itself, which is discussed on the Installation Page.
Loading Package Images
A package is a single artifact that contains all manifests, configuration,
and metadata needed to run an application or operator. This single artifact takes
the form of a non-runnable container image. This image is supplied to Package
Operator in a (Cluster)Package object.
When Package Operator reconciles a (Cluster)Package object, it needs to access
the content of the package image. Package Operator does this by pulling the
package image directly inside the package-operator-manager binary.