2 releases
0.0.2 | Mar 29, 2024 |
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0.0.1 | Mar 29, 2024 |
#3 in #reflector
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23KB
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kube-subcontroller
Used to build general-purpose Kubernetes controllers that run independently on separate objects/resource types.
graph LR
subgraph subscriber
objects
types
end
subgraph subcontrollers
subctrl1[User code]
subctrl2[...]
end
objects & types -->|notify| kube-subcontroller
-->|start/stop/refresh| subctrl1 & subctrl2
lib.rs
:
kube-subcontroller executes a set of subroutines ("subcontrollers") in response to configuration changes from the apiserver, e.g. run a subcontroller watching a new GVK when a CRD is created.
The process subscribes to events from a certain object list-watch (e.g. CRD), which indicate the associated subcontrollers for this key to start, stop or restart. There would be up to N × M subcontrollers running, where N is the number of keys (e.g. number of CRDs), and M is the number of subcontrollers to run for each key.
Dependencies
~64MB
~1M SLoC