Add reconciler sharding capability based on label selector #1059
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hiddeco
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Mar 28, 2023
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With this enhancement, the controller can be configured with `--watch-label-selector`, after which only objects with this label will be reconciled by the controller. This allows for horizontal scaling of the source-controller, where each controller can be deployed multiple times with a unique label selector which is used as the sharding key. Note that this also requires configuration of the `--storage-adv-addr` to a unique address (in combination with a proper Service definition). This to ensure the Artifacts handled by the sharding controller point to a unique endpoint. In addition, Source object kinds which have a dependency on another kind (i.e. a HelmChart on a HelmRepository) need to have the same labels applied to work as expected. Signed-off-by: Hidde Beydals <hidde@hhh.computer>
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Yay to readability. Signed-off-by: Hidde Beydals <hidde@hhh.computer>
Signed-off-by: Hidde Beydals <hidde@hhh.computer>
This was an artifact of the desire to run `make run` without any custom configuration, rather than it being a feature of the controller. The setup of this has now been moved to the `Makefile` itself, including the required configuration of the `--storage-adv-addr`. Signed-off-by: Hidde Beydals <hidde@hhh.computer>
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Implementation of the work done in fluxcd/pkg#525
Part of fluxcd/flux2#3731